| Section |
| 742.100 | Intent and Purpose | |
| 742.105 | Applicability | |
| 742.110 | Overview of Tiered Approach | |
| 742.115 | Key Elements | |
| 742.120 | Site Characterization | |
| 742.600 | Tier 2 Evaluation Overview |
| 742.1010 | Environmental Land Use Controls |
| 742.1012 | Federally Owned Property: Land Use Control Memoranda of Agreement |
| 742.1020 | Highway Authority Agreements and Highway Authority Agreement Memoranda of Agreement |
| Section | |||
| 742.1100 | Engineered Barriers | ||
| 742.1105 | Engineered Barrier Requirements | ||
| APPENDIX A | General | |
| ILLUSTRATION A | Developing Soil Remediation Objectives Under the Tiered Approach |
| ILLUSTRATION B | Developing Groundwater Remediation Objectives Under the Tiered Approach |
| TABLE A | Soil Saturation Limits (Csat) for Chemicals Whose Melting Point is Less than 30° C |
| TABLE B | Tolerance Factor (K) |
| TABLE C | Coefficients {AN-I+1} for W Test of Normality, for N=2(1)50 |
| TABLE D | Percentage Points of the W Test for n=3(1)50 |
| TABLE E | Similar-Acting Noncarcinogenic Chemicals |
| TABLE F | Similar-Acting Carcinogenic Chemicals |
| TABLE G | Concentrations of Inorganic Chemicals in Background Soils |
| TABLE H | Concentrations of Polynuclear Aromatic Hydrocarbon Chemicals in Background Soils |
| TABLE I | Chemicals Whose Tier 1 Class I Groundwater Remediation Objective Exceeds the 1 in 1,000,000 Cancer Risk Concentration |
| APPENDIX B | Tier 1 Illustrations and Tables | |
| ILLUSTRATION A | Tier 1 Evaluation | ||||
| TABLE A | Tier 1 Soil Remediation Objectives for Residential Properties |
| TABLE B | Tier 1 Soil Remediation Objectives for Industrial/Commercial Properties |
| TABLE C | pH Specific Soil Remediation Objectives for Inorganics and Ionizing Organics for the Soil Component of the Groundwater Ingestion Route (Class I Groundwater) |
| TABLE D | pH Specific Soil Remediation Objectives for Inorganics and Ionizing Organics for the Soil Component of the Groundwater Ingestion Route (Class II Groundwater) |
| TABLE E | Tier 1 Groundwater Remediation Objectives for the Groundwater Component of the Groundwater Ingestion Route |
| TABLE F | Values Used to Calculate the Tier 1 Soil Remediation Objectives for the Soil Component of the Groundwater Ingestion Route |
| APPENDIX C | Tier 2 Illustrations and Tables | |
| ILLUSTRATION A | Tier 2 Evaluation for Soil |
| ILLUSTRATION B | Tier 2 Evaluation for Groundwater |
| ILLUSTRATION C | US Department of Agriculture Soil Texture Classification |
| TABLE A | SSL Equations |
| TABLE B | SSL Parameters |
| TABLE C | RBCA Equations |
| TABLE D | RBCA Parameters |
| TABLE E | Default Physical and Chemical Parameters |
| TABLE F | Methods for Determining Physical Soil Parameters |
| TABLE G | Error Function (erf) |
| TABLE H | Q/C Values By Source Area |
| TABLE I | Koc Values for Ionizing Organics as a Function of pH (cm3/g or L/kg or cm3water/gsoil) |
| TABLE J | Values to be Substituted for kd or ks when Evaluating Inorganics as a Function of pH (cm3/g or L/kg or cm3water/gsoil) |
| TABLE K | Parameter Estimates for Calculating Water-Filled Soil Porosity (q w) |
| APPENDIX D | Highway Authority Agreement | ||
| APPENDIX E | Highway Authority Agreement Memorandum of Agreement | ||
| APPENDIX F | Environmental Land Use Control | ||
| APPENDIX G | Model Ordinance | ||
| APPENDIX H | Memorandum of Understanding | ||
AUTHORITY: Implementing Sections 22.4, 22.12, Title XVI, and Title XVII and authorized by Sections 27 and 58.5 of the Environmental Protection Act [415 ILCS 5/22.4, 22.12, 27, and 58.5 and Title XVI and Title XVII].
SOURCE: Adopted in R97-12(A) at 21 Ill. Reg. 7942, effective July 1, 1997; amended in R97-12(B) at 21 Ill. Reg. 16391, effective December 8, 1997; amended in R97-12(C) at 22 Ill. Reg. 10847, effective June 8, 1998; amended in R00-19(A) at 25 Ill. Reg. 651, effective January 6, 2001; amended in R00-19(B) at 25 Ill. Reg. 10374, effective August 15, 2001; amended in R00-19(C) at 26 Ill. Reg. 2683, effective February 5, 2002; amended in R06-10 at 31 Ill. Reg. 4063, effective February 23, 2007.
NOTE: Italics indicates statutory language.
SUBPART A: INTRODUCTION
| a) | This Part sets forth procedures for evaluating the risk to human health posed by environmental conditions and developing remediation objectives that achieve acceptable risk levels. |
| b) | The purpose of these procedures is to provide for the adequate protection of human health and the environment based on the risks to human health posed by environmental conditions while incorporating site related information. |
Section 742.105 Applicability
| a) | Any person, including a person required to perform an investigation pursuant to the Illinois Environmental Protection Act [415 ILCS 5] (Act), may elect to proceed under this Part to the extent allowed by State or federal law and regulations and the provisions of this Part and subject to the exceptions listed in subsection (h) below. A person proceeding under this Part may do so to the extent such actions are consistent with the requirements of the program under which site remediation is being addressed. |
| b) | This Part is to be used in conjunction with the procedures and requirements applicable to the following programs: |
| 1) | Leaking Underground Storage Tanks (35 Ill. Adm. Code 731, 732, and 734); |
| 2) | Site Remediation Program (35 Ill. Adm. Code 740); and |
| 3) | RCRA Part B Permits and Closure Plans (35 Ill. Adm. Code 724 and 725). | ||
| c) | The procedures in this Part may not be used if their use would delay response action to address imminent and substantial threats to human health and the environment. This Part may only be used after actions to address such threats have been completed. |
| d) | This Part may be used to develop remediation objectives to protect surface waters, sediments or ecological concerns, when consistent with the regulations of other programs, and as approved by the Agency. |
| e) | A no further remediation determination issued by the Agency prior to July 1, 1997 pursuant to Section 4(y) of the Act or one of the programs listed in subsection (b) of this Section that approves completion of remedial action relative to a release shall remain in effect in accordance with the terms of that determination. |
| f) | Site specific groundwater remediation objectives determined under this Part for contaminants of concern may exceed the groundwater quality standards established pursuant to the rules promulgated under the Illinois Groundwater Protection Act [415 ILCS 55] as long as done in accordance with Sections 742.805 and 742.900(c)(9). (See 415 ILCS 5/58.5(d)(4) |
| g) | Where contaminants of concern include polychlorinated byphenyls (PCBs), a person may need to evaluate the applicability of regulations adopted under the Toxic Substances Control Act (15 U.S.C. 2601). | ||
| h) | This Part may not be used in lieu of the procedures and requirements applicable to landfills under 35 Ill. Adm. Code 807 or 811 through 814. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Section 742.110 Overview of Tiered Approach
| a) | This Part presents an approach for developing remediation objectives (see Appendix A, Illustrations A and B) that include an option for exclusion of pathways from further consideration, use of area background concentrations as remediation objectives and three tiers for selecting applicable remediation objectives. An understanding of human exposure routes is necessary to properly conduct an evaluation under this approach. In some cases, applicable human exposure route(s) can be excluded from further consideration prior to any tier evaluation. Selecting which tier or combination of tiers to be used to develop remediation objectives is dependent on the site-specific conditions and remediation goals. Tier 1 evaluations and Tier 2 evaluations are not prerequisites to conducting Tier 3 evaluations. |
| b) | A Tier 1 evaluation compares the concentration of contaminants detected at a site to the corresponding remediation objectives for residential and industrial/commercial properties contained in Appendix B, Tables A, B, C, D and E. To complete a Tier 1 evaluation, the extent and concentrations of the contaminants of concern, the groundwater class, the land use classification, human exposure routes at the site, and, if appropriate, soil pH, must be known. If remediation objectives are developed based on industrial/commercial property use, then institutional controls under Subpart J are required. |
| c) | A Tier 2 evaluation uses the risk based equations from the Soil Screening Level (SSL) and Risk Based Corrective Action (RBCA) documents listed in Appendix C, Tables A and C, respectively. In addition to the information that is required for a Tier 1 evaluation, site-specific information is used to calculate Tier 2 remediation objectives. As in Tier 1, Tier 2 evaluates residential and industrial/commercial properties only. If remediation objectives are developed based on industrial/commercial property use, then institutional controls under Subpart J are required. |
| d) | A Tier 3 evaluation allows alternative parameters and factors, not available under a Tier 1 or Tier 2 evaluation, to be considered when developing remediation objectives. Remediation objectives developed for conservation and agricultural properties can only be developed under Tier 3. |
| e) | Remediation objectives may be developed using area background concentrations or any of the three tiers if the evaluation is conducted in accordance with applicable requirements in Subparts D through I. When contaminant concentrations do not exceed remediation objectives developed under one of the tiers or area background procedures under Subpart D, further evaluation under any of the other tiers is not required. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| 1) | This Part identifies the following as potential exposure routes to be addressed: |
| 2) | The evaluation of exposure routes under subsections (a)(1)(A),(a)(1)(B) and (a)(1)(C) of this Section is required for all sites when developing remediation objectives or excluding exposure pathways. Evaluation of the dermal contact exposure route is required for use of RBCA equations in Appendix C, Table C or use of formal risk assessment under Section 742.915. |
| 3) | The groundwater ingestion exposure route is comprised of two components: |
| B) | Direct ingestion of groundwater (groundwater component). |
| 2) | The extent of the no further remediation determination being requested from the Agency pursuant to a specific program; and |
| 3) | The requirements applicable to the specific program, as listed at Section 742.105(b) under which the remediation is being performed. |
SUBPART B: GENERAL
Section 742.200 Definitions
Except as stated in this Section, or unless a different meaning of a word or term is clear from the context, the definition of words or terms in this Part shall be the same as that applied to the same words or terms in the Act.
| "Act" means the Illinois Environmental Protection Act [415 ILCS 5] . | |
| "ADL" means Acceptable Detection Limit, which is the detectable concentration of a substance that is equal to the lowest appropriate Practical Quantitation Limit (PQL) as defined in this Section. | |
| "Agency" means the Illinois Environmental Protection Agency. | |
| "Agricultural Property" means any real property for which its present or post-remediation use is for growing agricultural crops for food or feed either as harvested crops, cover crops or as pasture. This definition includes, but is not limited to, properties used for confinement or grazing of livestock or poultry and for silviculture operations. Excluded from this definition are farm residences, farm outbuildings and agrichemical facilities. | |
| “Aquifer” means saturated (with groundwater) soils and geologic materials which are sufficiently permeable to readily yield economically useful quantities of water to wells, springs, or streams under ordinary hydraulic gradients. (Illinois Groundwater Protection Act [415 ILCS 55/3(a)]) | |
| "Area Background" means concentrations of regulated substances that are consistently present in the environment in the vicinity of a site that are the result of natural conditions or human activities, and not the result solely of releases at the site. [415 ILCS 5/58.2] | |
| "ASTM" means the American Society for Testing and Materials. | |
| "Board" means the Illinois Pollution Control Board. | |
| "Cancer Risk" means a unitless probability of an individual developing cancer from a defined exposure rate and frequency. | |
| "Cap" means a barrier designed to prevent the infiltration of precipitation or other surface water, or impede the ingestion or inhalation of contaminants. | |
| "Carcinogen" means a contaminant that is classified as a category A1 or A2 carcinogen by the American Conference of Governmental Industrial Hygienists; a category 1 or 2A/2B carcinogen by the World Health Organization's International Agency for Research on Cancer; a "human carcinogen" or "anticipated human carcinogen" by the United States Department of Health and Human Service National Toxicological Program; or a category A or B1/B2 carcinogen by the United States Environmental Protection Agency in the integrated risk information system or a final rule issued in a Federal Register notice by the USEPA. [415 ILCS 5/58.2] | |
| "Class I Groundwater" means groundwater that meets the Class I: Potable Resource Groundwater criteria set forth in 35 Ill. Adm. Code 620. | |
| "Class II Groundwater" means groundwater that meets the Class II: General Resource Groundwater criteria set forth in 35 Ill. Adm. Code 620. | |
| "Conservation Property" means any real property for which present or post-remediation use is primarily for wildlife habitat. | |
| "Construction Worker" means a person engaged on a temporary basis to perform work involving invasive construction activities including, but not limited to, personnel performing demolition, earth-moving, building, and routine and emergency utility installation or repair activities. | |
| "Contaminant of Concern" or "Regulated Substance of Concern" means any contaminant that is expected to be present at the site based upon past and current land uses and associated releases that are known to the person conducting a remediation based upon reasonable inquiry [415 ILCS 5/58.2] | |
| “County Highway” means county highway as defined in the Illinois Highway Code [605 ILCS 5]. | |
| “District Road” means district road as defined in the Illinois Highway Code [605 ILCS 5]. | |
| "Engineered Barrier" means a barrier designed or verified using engineering practices that limits exposure to or controls migration of the contaminants of concern. | |
| "Environmental Land Use Control" means an instrument that meets the requirements of this Part and is placed in the chain of title to real property that limits or places requirements upon the use of the property for the purpose of protecting human health or the environment, is binding upon the property owner, heirs, successors, assigns, and lessees, and runs in perpetuity or until the Agency approves, in writing, removal of the limitation or requirement from the chain of title. | |
| "Exposure Route" means the transport mechanism by which a contaminant of concern reaches a receptor. | |
| “Federally Owned Property” means real property owned in fee by the United States of America on which institutional controls are sought to be placed in accordance with this Subpart. | |
| “Federal Landholding Entity” means that federal department, agency, or instrumentality with the authority to occupy and control the day-to-day use, operation and management of Federally Owned Property. | |
| "Free Product" means a contaminant that is present as a non-aqueous phase liquid for chemicals whose melting point is less than 30 ° C (e.g., liquid not dissolved in water). | |
| “GIS” means Geographic Information System. | |
| “GPS” means Global Positioning System. | |
| “Groundwater" means underground water which occurs within the saturated zone and geologic materials where the fluid pressure in the pore space is equal to or greater than atmospheric pressure. [415 ILCS 5/3.64] | |
| "Groundwater Quality Standards" means the standards for groundwater as set forth in 35 Ill. Adm. Code 620. | |
| "Hazard Quotient" means the ratio of a single substance exposure level during a specified time period to a reference dose for that substance derived from a similar exposure period. | |
| "Highway" means any public way for vehicular travel which has been laid out in pursuance of any law of this State, or of the Territory of Illinois, or which has been established by dedication, or used by the public as a highway for 15 years, or which has been or may be laid out and connect a subdivision or platted land with a public highway and which has been dedicated for the use of the owners of the land included in the subdivision or platted land where there has been an acceptance and use under such dedication by such owners, and which has not been vacated in pursuance of law. The term "highway" includes rights of way, bridges, drainage structures, signs, guard rails, protective structures and all other structures and appurtenances necessary or convenient for vehicular traffic. A highway in a rural area may be called a "road", while a highway in a municipal area may be called a "street". (Illinois Highway Code [605 ILCS 5/2-202]) | |
| "Highway Authority" means the Department of Transportation with respect to a State highway; the Illinois State Toll Highway with respect to a toll highway; the County Board with respect to a county highway or a county unit district road if a discretionary function is involved and the County Superintendent of Highways if a ministerial function is involved; the Highway Commissioner with respect to a township or district road not in a county unit road district; or the corporate authorities of a municipality with respect to a municipal street. (Illinois Highway Code [605 ILCS 5/2-213]) | |
| "Human Exposure Pathway" means a physical condition which may allow for a risk to human health based on the presence of all of the following: contaminants of concern; an exposure route; and a receptor activity at the point of exposure that could result in contaminant of concern intake. | |
| "Industrial/Commercial Property" means any real property that does not meet the definition of residential property, conservation property or agricultural property. | |
| "Infiltration" means the amount of water entering into the ground as a result of precipitation. | |
| "Institutional Control" means a legal mechanism for imposing a restriction on land use, as described in Subpart J. | |
| “Land Use Control Memoranda of Agreement” mean agreements entered into between one or more agencies of the United States and the Illinois Environmental Protection Agency that limit or place requirements upon the use of Federally Owned Property for the purpose of protecting human health or the environment. | |
| "Man-Made Pathways" means constructed physical conditions that may allow for the transport of regulated substances including, but not limited to, sewers, utility lines, utility vaults, building foundations, basements, crawl spaces, drainage ditches, or previously excavated and filled areas. [415 ILCS 5/58.2] | |
| "Natural Pathways" means natural physical conditions that may allow for the transport of regulated substances including, but not limited to, soil, groundwater, sand seams and lenses, and gravel seams and lenses. [415 ILCS 5/58.2] | |
| "Person" means an individual, trust, firm, joint stock company, joint venture, consortium, commercial entity, corporation (including a government corporation), partnership, association, state, municipality, commission, political subdivision of a state, or any interstate body including the United States government and each department, agency, and instrumentality of the United States. [415 ILCS 5/58.2] | |
| "Point of Human Exposure" means the points at which human exposure to a contaminant of concern may reasonably be expected to occur. The point of human exposure is at the source, unless an institutional control limiting human exposure for the applicable exposure route has been or will be in place, in which case the point of human exposure will be the boundary of the institutional control. Point of human exposure may be at a different location than the point of compliance. | |
| “Populated Area” means |
an area within the boundaries of a municipality that has a population of 10,000 or greater based on the year 2000 or most recent census; or
an area less than three miles from the boundary of a municipality that has a population of 10,000 or greater based on the year 2000 or most recent census.
| “Potable” means generally fit for human consumption in accordance with accepted water supply principles and practices. (Illinois Groundwater Protection Act [415 ILCS 55/3(h)]) | |
| "PQL" means practical quantitation limit or estimated quantitation limit, which is the lowest concentration that can be reliably measured within specified limits of precision and accuracy for a specific laboratory analytical method during routine laboratory operating conditions in accordance with "Test Methods for Evaluating Solid Wastes, Physical/Chemical Methods", EPA Publication No. SW-846, incorporated by reference in Section 742.210. When applied to filtered water samples, PQL includes the method detection limit or estimated detection limit in accordance with the applicable method revision in: "Methods for the Determination of Organic Compounds in Drinking Water”, Supplement II", EPA Publication No. EPA/600/4-88/039; "Methods for the Determination of Organic Compounds in Drinking Water, Supplement III", EPA Publication No. EPA/600/R-95/131, all of which are incorporated by reference in Section 742.210. | |
| "RBCA" means Risk Based Corrective Action as defined in ASTM E-1739-95, as incorporated by reference in Section 742.210. | |
| "RCRA" means the Resource Conservation and Recovery Act of 1976 (42 USC 6921). | |
| "Reference Concentration” or “RfC" means an estimate of a daily exposure, in units of milligrams of chemical per cubic meter of air (mg/m(3)), to the human population (including sensitive subgroups) that is likely to be without appreciable risk of deleterious effects during a portion of a lifetime (up to approximately seven years, subchronic) or for a lifetime (chronic). | |
| "Reference Dose” or “RfD" means an estimate of a daily exposure, in units of milligrams of chemical per kilogram of body weight per day (mg/kg/d), to the human population (including sensitive subgroups) that is likely to be without appreciable risk of deleterious effects during a portion of a lifetime (up to approximately seven years, subchronic) or for a lifetime (chronic). | |
| "Regulated Substance" means any hazardous substance as defined under Section 101(14) of the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (P.L. 96-510) and petroleum products including crude oil or any fraction thereof, natural gas, natural gas liquids, liquefied natural gas, or synthetic gas usable for fuel (or mixtures of natural gas and such synthetic gas). [415 ILCS 5/58.2] | |
| "Residential Property" means any real property that is used for habitation by individuals, or where children have the opportunity for exposure to contaminants through soil ingestion or inhalation at educational facilities, health care facilities, child care facilities or outdoor recreational areas. [415 ILCS 5/58.2] | |
| "Right of Way" means the land, or interest therein, acquired for or devoted to a highway. (Illinois Highway Code [605 ILCS 5/2-217]) | |
| "Similar-Acting Chemicals" are chemical substances that have toxic or harmful effect on the same specific organ or organ system (see Appendix A.Tables E and F for a list of similar-acting chemicals with noncarcinogenic and carcinogenic effects). |
| "Slurry Wall" means a man-made barrier made of geologic material which is constructed to prevent or impede the movement of contamination into a certain area. | |
| "Soil Saturation Limit” or “Csat" means the contaminant concentration at which soil pore air and pore water are saturated with the chemical and the adsorptive limits of the soil particles have been reached. | |
| "Solubility" means a chemical specific maximum amount of solute that can dissolve in a specific amount of solvent (groundwater) at a specific temperature. | |
| "SPLP" means Synthetic Precipitation Leaching Procedure (Method 1312) as published in "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods", USEPA Publication No. SW-846, as incorporated by reference in Section 742.210. | |
| "SSL" means Soil Screening Levels as defined in USEPA's Soil Screening Guidance: User's Guide and Technical Background Document, as incorporated by reference in Section 742.210. | |
| “State highway” means State highway as defined in the Illinois Highway Code [605 ILCS 5]. | |
| "Stratigraphic Unit" means a site-specific geologic unit of native deposited material and/or bedrock of varying thickness (e.g., sand, gravel, silt, clay, bedrock, etc.). A change in stratigraphic unit is recognized by a clearly distinct contrast in geologic material or a change in physical features within a zone of gradation. For the purposes of this Part, a change in stratigraphic unit is identified by one or a combination of differences in physical features such as texture, cementation, fabric, composition, density, and/or permeability of the native material and/or bedrock. | |
| “Street” means street as defined in the Illinois Highway Code [605 ILCS 5]. | |
| "TCLP" means Toxicity Characteristic Leaching Procedure (Method 1311) as published in "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods", USEPA Publication No. SW-846, as incorporated by reference in Section 742.210. | |
| “Toll highway” means toll highway as defined in the Illinois Highway Code [605 ILCS 5]. | |
| "Total Petroleum Hydrocarbon” or “TPH" means the additive total of all petroleum hydrocarbons found in an analytical sample. | |
| “Township road” means township road as defined in the Illinois Highway Code [605 ILCS 5]. | |
| "Volatile Organic Compounds” or “VOCs" means organic chemical analytes identified as volatiles as published in "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods", USEPA Publication No. SW-846 (incorporated by reference in Section 742.210), method numbers 8011, 8015B, 8021B, 8031, 8260B, 8315A, and 8316. For analytes not listed in any category in those methods, those analytes which have a boiling point less than 200oC and a vapor pressure greater than 0.1 Torr (mm Hg) at 20 ° C. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Section 742.210 Incorporations by Reference
| a) | The Board incorporates the following material by reference: |
ASTM. American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. (610) 832-9585.
ASTM D 2974-00, Standard Test Methods for Moisture, Ash and Organic Matter of Peat and Other Organic Soils, approved August 10, 2000.
ASTM D 2488-00, Standard Practice for Description and Identification of Soils (Visual-Manual Procedure), approved February 10, 2000.
ASTM D 1556-00, Standard Test Method for Density and Unit Weight of Soil in Place by the Sand-Cone Method, approved March 10, 2000.
ASTM D 2167-94, Standard Test Method for Density and Unit Weight of Soil in Place by the Rubber Balloon Method, approved March 15, 1994.
ASTM D 2922-01, Standard Test Methods for Density of Soil and Soil-Aggregate in Place by Nuclear Methods (Shallow Depth), approved June 10, 2001.
ASTM D 2937-00e1, Standard Test Method for Density of Soil in Place by the Drive-Cylinder Method, approved June 10, 2000.
ASTM D 854-02, Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer, approved July 10, 2002.
ASTM D 2216-98, Standard Test Method for Laboratory Determination of Water (Moisture) Content of Soil and Rock by Mass, approved February 10, 1998.
ASTM D 4959-00, Standard Test Method for Determination of Water (Moisture) Content of Soil by Direct Heating, approved March 10, 2000.
ASTM D 4643-00, Standard Test Method for Determination of Water (Moisture) Content of Soil by the Microwave Oven Method, approved February 10, 2000.
ASTM D 5084-03, Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter, approved November 1, 2003.
ASTM D 422-63 (2002), Standard Test Method for Particle-Size Analysis of Soils, approved November 10, 2002.
ASTM D 1140-00, Standard Test Methods for Amount of Material in Soils Finer than the No. 200 (75 m m) Sieve, approved June 10, 2000.
ASTM D 3017-01, Standard Test Method for Water Content of Soil and Rock in Place by Nuclear Methods (Shallow Depth), approved June 10, 2001.
ASTM D 4525-90 (2001), Standard Test Method for Permeability of Rocks by Flowing Air, approved May 25, 1990.
ASTM D 2487-00, Standard Classification of Soils for Engineering Purposes (Unified Soil Classification System), approved March 10, 2000.
ASTM E 1527-00, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process, approved May 10, 2000. Vol. 11.04.
ASTM E 1739-95 (2002), Standard Guide for Risk-Based Corrective Action Applied at Petroleum Release Sites, approved September 10, 1995.
Barnes, Donald G. and Dourson, Michael. (1988). Reference Dose (RfD): Description and Use in Health Risk Assessments. Regulatory Toxicology and Pharmacology. 8, 471-486.
GPO. Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20401, (202) 783-3238.
USEPA Guidelines for Carcinogenic Risk Assessment, 51 Fed. Reg. 33992-34003 (September 24, 1986).
"Test Methods for Evaluating Solid Waste, Physical/Chemical Methods", USEPA Publication number SW-846 (Third Edition, Final Update IIIA, April 1998), as amended by Updates I, IIA, III, and IIIA (Document No. 955-001-00000-1).
"Methods for the Determination of Organic Compounds in Drinking Water", EPA Publication No. EPA/600/4-88/039 (December 1988 (Revised July 1991)).
“Methods for the Determination of Organic Compounds in Drinking Water, Supplement I”, EPA Publication No. EPA/600/4-90/020 (July 1990).
"Methods for the Determination of Organic Compounds in Drinking Water, Supplement II", EPA Publication No. EPA/600/R-92/129 (August 1992).
"Methods for the Determination of Organic Compounds in Drinking Water, Supplement III", EPA Publication No. EPA/600/R-95/131 (August 1995).
“Guidance for Data Quality Assessment, Practical Methods for Data Analysis, EPA QA/G-9, QAOO Update,” EPA/600/R-96/084 (July 2000). Available at www.epa.gov/quality/qs-docs/g9-final.pdf .
IRIS. Integrated Risk Information System, National Center for Environmental Assessment, U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, MS-190, Cincinnati, OH 45268, (513) 569-7254.
"Reference Dose (RfD): Description and Use in Health Risk Assessments", Background Document 1A (March 15, 1993).
"EPA Approach for Assessing the Risks Associated with Chronic Exposures to Carcinogens", Background Document 2 (January 17, 1992).
Nelson, D.W., and L.E. Sommers (1982). Total carbon, organic carbon, and organic matter. In: A.L. Page (ed.), Methods of Soil Analysis. Part 2. Chemical and Microbiological Properties. 2nd Edition, pp. 539-579, American Society of Agronomy. Madison, WI.
NTIS. National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161, (703) 487-4600.
“Calculating Upper Confidence Limits for Exposure Point Concentrations at Hazardous Waste Sites,” USEPA Office of Emergency and Remedial Response, OSWER 9285.6-10 (December 2002), PB 2003-104982.
“Exposures Factors Handbook, Vol. I: General Factors”, EPA Publication No. EPA/600/P-95/002Fa (August 1997).
“Exposures Factors Handbook, Vol. II: Food Ingestion Factors”, EPA Publication No. EPA/600/P-95/002Fb (August 1997).
“Exposures Factors Handbook, Vol. III: Activity Factors”, EPA Publication No. EPA/600/P-95/002Fc (August 1997).
"Risk Assessment Guidance for Superfund, Vol. I: Human Health Evaluation Manual, Supplemental Guidance: Standard Default Exposure Factors", OSWER Directive 9285.6-03 (March 1991).
"Rapid Assessment of Exposure to Particulate Emissions from Surface Contamination Sites," EPA Publication No. EPA/600/8-85/002 (February 1985), PB 85-192219.
"Risk Assessment Guidance for Superfund, Volume I: Human Health Evaluation Manual (Part A)", Interim Final, EPA Publication No. EPA/540/1-89/002 (December 1989).
"Risk Assessment Guidance for Superfund, Volume I: Human Health Evaluation Manual, Supplemental Guidance, Dermal Risk Assessment Interim Guidance", Draft (August 18, 1992).
“Risk Assessment Guidance for Superfund, Vol. I: Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment) Interim”, EPA Publication No. EPA/540/R/99/005 (September 2001).
"Soil Screening Guidance: Technical Background Document", EPA Publication No. EPA/540/R-95/128, PB 96-963502 (May 1996).
"Soil Screening Guidance: User's Guide", EPA Publication No. EPA/540/R-96/018, PB 96-963505 (April 1996).
"Superfund Exposure Assessment Manual", EPA Publication No. EPA/540/1-88/001 (April 1988).
“Supplemental Guidance for Developing Soil Screening Levels for Superfund Sites”, OSWER Directive 9355.4-24 (December 2002).
Polynuclear Aromatic Hydrocarbon Background Study, City of Chicago, Illinois, Tetra Tech Em Inc., 200 E. Randolph Drive, Suite 4700, Chicago, IL 60601, February 24, 2003.
Polycyclic Aromatic Hydrocarbons (PAHs) in Surface Soil in Illinois: Background PAHs, EPRI, Palo Alto, CA, We Energies, Milwaukee, WI, and IEPA, Springfield, IL: 2004. 1011376. EPRI, 3412 Hillview Avenue, Palo Alto, CA 94304, (800) 313-3774.
RCRA Facility Investigation Guidance, Interim Final, developed by USEPA (EPA 530/SW-89-031), 4 volumes (May 1989).
United States Environmental Protection Agency, Office of Environmental Information (2000). “Guidance for Data Quality Assessment, Practical Methods for Data Analysis,” EPA QA/G-9, QAOO update. EPA Publication No. EPA/600/R-96-084. (Available online at www.epa.gov/oswer/riskassessment/pdf/ucl.pdf ).
| b) | CFR (Code of Federal Regulations). Available from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 (202)783-3238: |
| 40 CFR 761 (1998). |
| c) | This Section incorporates no later editions or amendments. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Section 742.215 Determination of Soil Attenuation Capacity
| a) | The concentrations of organic contaminants of concern remaining in the soil shall not exceed the attenuation capacity of the soil, as determined under subsection (b) of this Section. |
| b) | The soil attenuation capacity is not exceeded if: |
| 1) | The sum of the organic contaminant residual concentrations analyzed for the purposes of the remediation program for which the analysis is performed, at each discrete sampling point, is less than the natural organic carbon fraction of the soil. If the information relative to the concentration of other organic contaminants is available, such information shall be included in the sum. The natural organic carbon fraction (foc) shall be either: |
| A) | A default value of 6000 mg/kg for soils within the top meter and 2000 mg/kg for soils below one meter of the surface; or |
| B) | A site-specific value as measured by the analytical method referenced in Appendix C, Table F, multiplied by 0.58 to estimate the fraction of organic carbon, as stated in, Nelson and Sommers (1982), as incorporated by reference in Section 742.210; |
| 2) | The total petroleum hydrocarbon concentration is less than the natural organic carbon fraction of the soil as demonstrated using a method approved by the Agency. The method selected shall be appropriate for the contaminants of concern to be addressed; or |
| 3) | Another method, approved by the Agency, shows that the soil attenuation capacity is not exceeded. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Section 742.220 Determination of Soil Saturation Limit
| a) | For any organic contaminant that has a melting point below 30oC, the remediation objective for the inhalation exposure route developed under Tier 2 shall not exceed the soil saturation limit, as determined under subsection (c) of this Section. |
| b) | For any organic contaminant that has a melting point below 30oC, the remediation objective under Tier 2 for the soil component of the groundwater ingestion exposure route shall not exceed the soil saturation limit, as determined under subsection (c) of this Section. |
| c) | The soil saturation limit shall be: |
| 1) | The value listed in Appendix A, Table A for that specific contaminant; |
| 2) | A value derived from Equation S29 in Appendix C, Table A; or |
| 3) | A value derived from another method approved by the Agency. | |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Section 742.225 Demonstration of Compliance with Remediation Objectives
Compliance is achieved if each sample result does not exceed that respective remediation objective unless a person elects to proceed under subsections (c), (d) and (e) of this Section.
| a) | Compliance with groundwater remediation objectives developed under Subparts D through F and H through I shall be demonstrated by comparing the contaminant concentrations of discrete samples at each sample point to the applicable groundwater remediation objective. Sample points shall be determined by the program under which remediation is performed. |
| b) | Unless the person elects to composite samples or average sampling results as provided in subsections (c) and (d) of this Section, compliance with soil remediation objectives developed under Subparts D through G and I shall be demonstrated by comparing the contaminant concentrations of discrete samples to the applicable soil remediation objective. |
| 1) | Except as provided in subsections (c) and (d) of this Section, compositing of samples is not allowed. |
| 2) | Except as provided in subsections (c) and (d) of this Section, averaging of sample results is not allowed. |
| 3) | Notwithstanding subsections (c) and (d) of this Section, compositing of samples and averaging of sample results is not allowed for the construction worker population. |
| 4) | The number of sampling points required to demonstrate compliance is determined by the requirements applicable to the program under which remediation is performed. |
| c) | If a person chooses to composite soil samples or average soil sample results to demonstrate compliance relative to the soil component of the groundwater ingestion exposure route, the following requirements apply: |
| 1) | A minimum of two sampling locations for every 0.5 acre of contaminated area is required, with discrete samples at each sample location obtained at every two feet of depth, beginning at six inches below the ground surface for surface contamination and at the upper limit of contamination for subsurface contamination and continuing through the zone of contamination. Alternatively, a sampling method may be approved by the Agency based on an appropriately designed site-specific evaluation. Samples obtained at or below the water table shall not be used in compositing or averaging. |
| 2) | For contaminants of concern other than volatile organic contaminants: |
| A) | Discrete samples from the same boring may be composited; or |
| B) | Discrete sample results from the same boring may be averaged. |
| 3) | For volatile organic contaminants: |
| A) | Compositing of samples is not allowed. |
| B) | Discrete sample results from the same boring may be averaged. |
| 4) | Composite samples may not be averaged. An arithmetic average may be calculated for discrete samples collected at every two feet of depth through the zone of contamination as specified above in subsection (c)(1) of this Section. |
| d) | If a person chooses to composite soil samples or average soil sample results to demonstrate compliance relative to the inhalation exposure route or ingestion exposure route, the following requirements apply: |
| 1) | A person shall submit a sampling plan for Agency approval, based upon a site-specific evaluation; |
| 2) | For volatile organic compounds, compositing of samples is not allowed; and |
| 3) | All samples shall be collected within the contaminated area. |
| 4) | Composite samples may not be averaged. Procedures specified in “Calculating Upper Confidence Limits for Exposure Point Concentrations at Hazardous Waste Sites”, USEPA Office of Emergency and Remedial Response, OSWER 9285.6-10 (December 2002), as incorporated by reference in Section 742.210, or an alternative procedure approved by the Agency, shall be used to determine sample averages. |
| e) | When averaging under this Section, if no more than 15% of sample results are reported as "non-detect", "no contamination", "below detection limits", or similar terms, such results shall be included in the averaging calculations as one-half the reported analytical detection limit for the contaminant. However, when performing a test for normal or lognormal distribution for the purpose of calculating a 95% Upper Confidence Limit of the mean for a contaminant, a person may substitute for each non-detect value a randomly generated value between, but not including, zero and the reported analytical detection limit. If more than 15% of sample results are "non-detect", procedures specified in “Guidance for Data Quality Assessment, Practical Methods for Data Analysis, EPA QA/G-9, QA00 Update”, EPA/600/R-96/084 (July 2000), as incorporated by reference in Section 742.210, or an alternative procedure approved by the Agency shall be used to address the non-detect values, or another statistically valid procedure approved by the Agency may be used to determine an average. |
| f) | All soil samples collected after August 15, 2001, shall be reported on a dry weight basis for the purpose of demonstrating compliance, with the exception of the TCLP and SPLP and the property pH. |
(Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007)
| a) | Documents and requests filed with the Agency under this Part shall be submitted in accordance with the procedures applicable to the specific program under which remediation is performed. |
| b) | Agency review and approval of documents and requests under this Part shall be performed in accordance with the procedures applicable to the specific program under which the remediation is performed. |
| a) | This Subpart sets forth requirements to demonstrate that an actual or potential impact to a receptor or potential receptor from a contaminant of concern can be excluded from consideration from one or more exposure routes. If an evaluation under this Subpart demonstrates the applicable requirements for excluding an exposure route are met, then the exposure route is excluded from consideration and no remediation objective(s) need be developed for that exposure route. |
| b) | No exposure route may be excluded from consideration until characterization of the extent and concentrations of contaminants of concern at a site has been performed. The actual steps and methods taken to characterize a site shall be determined by the specific program requirements under which the site remediation is being addressed. |
| c) | As an alternative to the use of the requirements in this Subpart, a person may use the procedures for evaluation of exposure routes under Tier 3 as set forth in Section 742.925. |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
Section 742.305 Contaminant Source and Free Product Determination
No exposure route shall be excluded from consideration relative to a contaminant of concern unless the following requirements are met:
| a) | The sum of the concentrations of all organic contaminants of concern shall not exceed the attenuation capacity of the soil as determined under Section 742.215; |
| b) | The concentrations of any organic contaminants of concern remaining in the soil shall not exceed the soil saturation limit as determined under Section 742.220; |
| c) | Any soil which contains contaminants of concern shall not exhibit any of the characteristics of reactivity for hazardous waste as determined under 35 Ill. Adm. Code 721.123; |
| d) | Any soil which contains contaminants of concern shall not exhibit a pH less than or equal to 2.0 or greater than or equal to 12.5, as determined by SW-846 Method 9040B: pH Electrometric for soils with 20% or greater aqueous (moisture) content or by SW-846 Method 9045C: Soil pH for soils with less than 20% aqueous (moisture) content as incorporated by reference in Section 742.210; |
| e) | Any soil which contains contaminants of concern in the following list of inorganic chemicals or their salts shall not exhibit any of the characteristics of toxicity for hazardous waste as determined by 35 Ill. Adm. Code 721.124: arsenic, barium, cadmium, chromium, lead, mercury, selenium or silver; and | ||
| f) | If contaminants of concern include polychlorinated biphenyls (PCBs), the concentration of any PCBs in the soil shall not exceed 50 parts per million as determined by SW-846 Methods. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
The inhalation exposure route may be excluded from consideration if:
| a) | The requirements of Sections 742.300 and 742.305 are met; |
| b) | An approved engineered barrier is in place that meets the requirements of Subpart K; |
| c) | Safety precautions for the construction worker are taken if the Tier 1 construction worker remediation objectives are exceeded; and |
| d) | An institutional control, in accordance with Subpart J, will be placed on the property. |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
Section 742.315 Soil Ingestion Exposure Route
The soil ingestion exposure route may be excluded from consideration if:
| a) | The requirements of Sections 742.300 and 742.305 are met; | |
| b) | An approved engineered barrier is in place that meets the requirements of Subpart K; |
| c) | Safety precautions for the construction worker are taken if the Tier 1 construction worker remediation objectives are exceeded; and |
| d) | An institutional control, in accordance with Subpart J, will be placed on the property. |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
Section 742.320 Groundwater Ingestion Exposure Route
The groundwater ingestion exposure route may be excluded from consideration if:
a) The requirements of Sections 742.300 and 742.305 are met;
b) The corrective action measures have been completed to remove any free product to the maximum extent practicable;
| c) | The source of the release is not located within the minimum or designated maximum setback zone or within a regulated recharge area of a potable water supply well; |
| d) | As demonstrated in accordance with Section 742.1015, for any area within the measured and modeled extent of groundwater contamination above what would otherwise be the applicable Tier 1 groundwater remediation objectives, an ordinance adopted by a unit of local government is in place that effectively prohibits the installation of potable water supply wells (and the use of such wells); |
| e) | As demonstrated using Equation R26, in Appendix C, Table C, in accordance with Section 742.810, the concentration of any contaminant of concern in groundwater within the minimum or designated maximum setback zone of an existing potable water supply well will meet the applicable Tier 1 groundwater remediation objective; and |
| f) | As demonstrated using Equation R26, in Appendix C, Table C, in accordance with Section 742.810, the concentration of any contaminant of concern in groundwater discharging into a surface water will meet the applicable surface water quality standard under 35 Ill. Adm. Code 302. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) |
SUBPART D: DETERMINING AREA BACKGROUNDS
| a) | Soil sampling results shall be obtained for purposes of determining area background levels in accordance with the following procedures: |
| 1) | For volatile organic contaminants, sample results shall be based on discrete samples; |
| 2) | Unless an alternative method is approved by the Agency, for contaminants other than volatile organic contaminants, sample results shall be based on discrete samples or composite samples. If a person elects to use composite samples, each 0.5 acre of the area to be sampled shall be divided into quadrants and 5 aliquots of equal volume per quadrant shall be composited into 1 sample; |
| 3) | Samples shall be collected from similar depths and soil types, which shall be consistent with the depths and soil types in which maximum levels of contaminants are found in the areas of known or suspected releases; and |
| 4) | Samples shall be collected from areas of the site or adjacent to the site that are unaffected by known or suspected releases at or from the site. If the sample results show an impact from releases at or from the site, then the sample results shall not be included in determining area background levels under this Part. |
| b) | Area background shall be determined according to one of the following approaches: |
| A) | The concentrations of inorganic chemicals in background soils listed in Appendix A, Table G may be used as the upper limit of the area background concentration for the site. The first column to the right of the chemical name presents inorganic chemicals in background soils for counties within Metropolitan Statistical Areas. Counties within Metropolitan Statistical Areas are identified in Appendix A, Table G, Footnote a. Sites located in counties outside Metropolitan Statistical Areas shall use the concentrations of inorganic chemicals in background soils shown in the second column to the right of the chemical name. |
| B) | Soil area background concentrations determined according to this statewide area background approach shall be used as provided in Section 742.415(b) of this Part. For each parameter whose sampling results demonstrate concentrations above those in Appendix A, Table G, the person shall develop appropriate soil remediation objectives in accordance with this Part, or may determine area background in accordance with subsection (b)(2) of this Section. |
| 2) | A statistically valid approach for determining area background concentrations appropriate for the characteristics of the data set, and approved by the Agency. |
| a) | Groundwater sampling results shall be obtained for purposes of determining area background in accordance with the following procedures: |
| 1) | Samples shall be collected from areas of the site or adjacent to the site that are unaffected by releases at the site; |
| 2) | The background monitoring wells shall be sufficient in number to account for the spatial and temporal variability, size, and number of known or suspected off-site releases of contaminants of concern, and the hydrogeological setting of the site; |
| 3) | The samples shall be collected in consecutive quarters for a minimum of one year for each well unless another sample schedule is approved by the Agency; |
| 4) | The samples shall be collected from the same stratigraphic unit(s) as the groundwater contamination at the site; and |
| 5) | The background monitoring wells shall be located hydraulically upgradient from the release(s) of contaminants of concern, unless a person demonstrates to the Agency that the upgradient location is undefinable or infeasible. |
| b) | Area background shall be determined according to one of the following approaches: |
| A) | If more than 15% of the groundwater sampling results for a chemical obtained in accordance with subsection (a) of this Section are less than the appropriate detection limit for that chemical, the Prescriptive Approach may not be used for that chemical. If 15% or less of the sampling results are less than the appropriate detection limit, a concentration equal to one-half the detection limit shall be used for that chemical in the calculations contained in this Prescriptive Approach. |
| B) | The groundwater sampling results obtained in accordance with subsection (a) of this Section shall be used to determine if the sample set is normally distributed. The Shapiro-Wilk Test of Normality shall be used to determine whether the sample set is normally distributed, if the sample set for the background well(s) contains 50 or fewer samples. Values necessary for the Shapiro-Wilk Test of Normality shall be determined using Appendix A, Tables C and D. If the computed value of W is greater than the 5% Critical Value in Appendix A, Table D, the sample set shall be assumed to be normally distributed, and the Prescriptive Approach is allowed. If the computed value of W is less than 5% Critical Value in Appendix A, Table D, the sample set shall be assumed to not be normally distributed, and the Prescriptive Approach shall not be used. |
| C) | If the sample set contains at least ten sample results, the Upper Tolerance Limit (UTL) of a normally distributed sample set may be calculated using the mean (x) and standard deviation(s), from: |
| D) | If the sample set contains at least ten sample results, the UTL shall be the upper limit of the area background concentration for the site. If the sample set contains fewer than ten sample results, the maximum value of the sample set shall be the upper limit of the area background concentration for the site. |
| E) | This Prescriptive Approach shall not be used for determining area background for the parameter pH. |
| 2) | Another statistically valid approach for determining area background concentrations appropriate for the characteristics of the data set, and approved by the Agency. |
Section 742.415 Use of Area Background Concentrations
| a) | A person may request that area background concentration determined pursuant to Sections 742.405 and 742.410 be used according to the provisions of subsection (b) of this Section. Such request shall address the following: |
| 1) | The natural or man-made pathways of any suspected off-site contamination reaching the site; |
| 2) | Physical and chemical properties of suspected off-site contaminants of concern reaching the site; and |
| 3) | The location and justification of all background sampling points. |
| b) | Except as specified in subsections (c) and (d) of this Section, an area background concentration may be used as follows: |
| 1) | To support a request to exclude a chemical as a contaminant of concern from further consideration for remediation at a site due to its presence as a result of background conditions; or |
| 2) | As a remediation objective for a contaminant of concern at a site in lieu of an objective developed pursuant to the other procedures of this Part. |
| c) | An area background concentration shall not be used in the event that the Agency has determined in writing that the background level for a regulated substance poses an acute threat to human health or the environment at the site when considering the post-remedial action land use. (Section 58.5(b)(3) of the Act) |
| d) | In the event that the concentration of a regulated substance of concern on the site exceeds a remediation objective adopted by the Board for residential land use, the property may not be converted to residential use unless such remediation objective or an alternative risk-based remediation objective for that regulated substance of concern is first achieved. If the land use is restricted, there shall be an institutional control in place in accordance with Subpart J. (Section 58.5(b)(2) of the Act) |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| a) | A Tier 1 evaluation compares the concentration of each contaminant of concern detected at a site to the baseline remediation objectives provided in Appendix B, Tables A, B, C, D and E. Use of Tier 1 remediation objectives requires only limited site-specific information: concentrations of contaminants of concern, groundwater classification, land use classification, and, if appropriate, soil pH. (See Appendix B, Illustration A.) |
| b) | Although Tier 1 allows for differentiation between residential and industrial/commercial property use of a site, an institutional control under Subpart J is required where remediation objectives are based on an industrial/commercial property use. |
| c) | Any given exposure route is not a concern if the concentration of each contaminant of concern detected at the site is below the Tier 1 value of that given route. In such a case, no further evaluation of that route is necessary. |
| a) | Soil |
| 1) | Inhalation Exposure Route |
| A) | The Tier 1 soil remediation objectives for this exposure route based upon residential property use are listed in Appendix B, Table A. |
| B) | The Tier 1 soil remediation objectives for this exposure route based upon industrial/commercial property use are listed in Appendix B, Table B. Soil remediation objective determinations relying on this table require use of institutional controls in accordance with Subpart J. |
| 2) | Ingestion Exposure Route |
| A) | The Tier 1 soil remediation objectives for this exposure route based upon residential property use are listed in Appendix B, Table A. |
| B) | The Tier 1 soil remediation objectives for this exposure route based upon industrial/commercial property use are listed in Appendix B, Table B. Soil remediation objective determinations relying on this table require use of institutional controls in accordance with Subpart J. |
| 3) | Soil Component of the Groundwater Ingestion Route |
| A) | The Tier 1 soil remediation objectives for this exposure route based upon residential property use are listed in Appendix B, Table A. |
| B) | The Tier 1 soil remediation objectives for this exposure route based upon industrial/commercial property use are listed in Appendix B, Table B. |
| C) | The pH-dependent Tier 1 soil remediation objectives for identified ionizable organics or inorganics for the soil component of the groundwater ingestion exposure route (based on the total amount of contaminants present in the soil sample results and groundwater classification) are provided in Appendix B, Tables C and D. |
| D) | Values used to calculate the Tier 1 soil remediation objectives for this exposure route are listed in Appendix B, Table F. |
| 4) | Evaluation of the dermal contact with soil exposure route is not required under Tier 1. |
| 1) | The Tier 1 groundwater remediation objectives for the groundwater component of the groundwater ingestion route are listed in Appendix B, Table E. |
| 2) | The Tier 1 groundwater remediation objectives for this exposure route are given for Class I and Class II groundwaters, respectively. |
| 3) | The evaluation of 35 Ill. Adm. Code 620.615 regarding mixtures of similar-acting chemicals shall be considered satisfied for Class I groundwater at the point of human exposure if: |
| A) | No more than one similar-acting noncarcinogenic chemical as listed in Appendix A, Table E is detected in the groundwater at the site; and |
| B) | No carcinogenic contaminant of concern as listed in Appendix A, Table I is detected in any groundwater sample associated with the site, using analytical procedures capable of achieving either the 1 in 1,000,000 cancer risk concentration or the ADL, whichever is greater. |
| 4) | If the conditions of subsection (b)(3) of this Section are not met, the Class I groundwater remediation objectives set forth in Appendix B, Table E shall be corrected for the cumulative effect of mixtures of similar-acting chemicals using the following methodologies: |
| A) | For noncarcinogenic chemicals, the methodologies set forth at Section 742.805(c) or Section 742.915(h) shall be used; and |
| B) | For carcinogenic chemicals, the methodologies set forth at Section 742.805(d) or Section 742.915(h) shall be used. |
Section 742.510 Tier 1 Remediation Objectives Tables
a) Soil remediation objectives are listed in Appendix B, Tables A, B, C and D.
1) Appendix B, Table A is based upon residential property use.
| A) | The first column to the right of the chemical name lists soil remediation objectives for the soil ingestion exposure route. |
| B) | The second column lists the soil remediation objectives for the inhalation exposure route. |
| C) | The third and fourth columns list soil remediation objectives for the soil component of the groundwater ingestion exposure route for the respective classes of groundwater: |
i) Class I groundwater; and
ii) Class II groundwater.
| D) | The final column lists the Acceptable Detection Limit (ADL), only where applicable. |
| 2) | Appendix B, Table B is based upon industrial/commercial property use. |
| A) | The first and third columns to the right of the chemical name list the soil remediation objectives for the soil ingestion exposure route based on two receptor populations: |
i) Industrial/commercial; and
ii) Construction worker.
| B) | The second and fourth columns to the right of the chemical name list the soil remediation objectives for the inhalation exposure route based on two receptor populations: |
i) Industrial/commercial; and
ii) Construction worker.
| C) | The fifth and sixth columns to the right of the chemical name list the soil remediation objectives for the soil component of the groundwater ingestion exposure route for two classes of groundwater: |
i) Class I groundwater; and
ii) Class II groundwater.
| 3) | Appendix B, Tables C and D set forth pH specific soil remediation objectives for inorganic and ionizing organic chemicals for the soil component of the groundwater ingestion route. |
| A) | Table C sets forth remediation objectives based on Class I groundwater and Table D sets forth remediation objectives based on Class II groundwater. |
B) The first column in Tables C and D lists the chemical names.
| C) | The second through ninth columns to the right of the chemical names list the pH based soil remediation objectives. |
| 4) | For the inorganic chemicals listed in Appendix B, Tables A and B, the soil component of the groundwater ingestion exposure route shall be evaluated using TCLP (SW-846 Method 1311) or SPLP (SW-846 Method 1312), incorporated by reference at Section 742.210 unless a person chooses to evaluate the soil component on the basis of the total amount of contaminant in a soil sample result in accordance with subsection (a)(5) of this Section. |
| 5) | For those inorganic and ionizing organic chemicals listed in Appendix B, Tables C and D, if a person elects to evaluate the soil component of the groundwater ingestion exposure route based on the total amount of contaminant in a soil sample result (rather than TCLP or SPLP analysis), the person shall determine the soil pH at the site and then select the appropriate soil remediation objectives based on Class I and Class II groundwaters from Tables C and D, respectively. If the soil pH is less than 4.5 or greater than 9.0, then Tables C and D cannot be used. |
| 6) | Unless one or more exposure routes are excluded from consideration under Subpart C, the most stringent soil remediation objective of the exposure routes (i.e., soil ingestion exposure route, inhalation exposure route, and soil component of the groundwater ingestion exposure route) shall be compared to the concentrations of soil contaminants of concern measured at the site. When using Appendix B, Table B to select soil remediation objectives for the ingestion exposure route and inhalation exposure route, the remediation objective shall be the more stringent soil remediation objective of the industrial/commercial populations and construction worker populations. |
7) Confirmation sample results may be averaged or soil samples may be composited in accordance with Section 742.225.
| 8) | If a soil remediation objective for a chemical is less than the ADL, the ADL shall serve as the soil remediation objective. |
| b) | Groundwater remediation objectives for the groundwater component of the groundwater ingestion exposure route are listed in Appendix B, Table E. However, Appendix B, Table E must be corrected for cumulative effect of mixtures of similar-acting noncarcinogenic chemicals as set forth in Section 742.505(b)(3). |
| 1) | The first column to the right of the chemical name lists groundwater remediation objectives for Class I groundwater, and the second column lists the groundwater remediation objectives for Class II groundwater. |
| 2) | To use Appendix B, Table E of this Part, the 35 Ill. Adm. Code 620 classification for groundwater at the site shall be determined. The concentrations of groundwater contaminants of concern at the site are compared to the applicable Tier 1 groundwater remediation objectives for the groundwater component of the groundwater ingestion exposure route in Appendix B, Table E. |
| c) | For contaminants of concern not listed in Appendix B, Tables A, B and E, a person may request site-specific remediation objectives from the Agency or propose site-specific remediation objectives in accordance with 35 Ill. Adm. Code 620, Subpart I of this Part, or both. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| a) | Tier 2 remediation objectives are developed through the use of equations which allow site-specific data to be used. (See Appendix C, Illustrations A and B.) The equations, identified in Appendix C, Tables A and C may be used to develop Tier 2 remediation objectives. |
| b) | Tier 2 evaluation is only required for contaminants of concern and corresponding exposure routes (except where excluded from further consideration under Subpart C) exceeding the Tier 1 remediation objectives. When conducting Tier 2 evaluations, the values used in the calculations must have the appropriate units of measure as identified in Appendix C, Tables B and D. |
| c) | Any development of remediation objectives using site-specific information or equations outside the Tier 2 framework shall be evaluated under Tier 3. |
| d) | Any development of a remediation objective under Tier 2 shall not use a target hazard quotient greater than one at the point of human exposure or a target cancer risk greater than 1 in 1,000,000 at the point of human exposure. |
| e) | In conducting a Tier 2 evaluation, the following conditions shall be met: |
| 1) | For each discrete sample, the total soil contaminant concentration of either a single contaminant or multiple contaminants of concern shall not exceed the attenuation capacity of the soil as provided in Section 742.215. |
| 2) | Remediation objectives for noncarcinogenic compounds which affect the same target organ, organ system or similar mode of action shall meet the requirements of Section 742.720. |
| 3) | The soil remediation objectives based on the inhalation and the soil component of the groundwater ingestion exposure routes shall not exceed the soil saturation limit as provided in Section 742.220. |
| f) | If the calculated Tier 2 soil remediation objective for an applicable exposure route is more stringent than the corresponding Tier 1 remediation objective, then the Tier 1 remediation objective applies. |
| g) | If the calculated Tier 2 soil remediation objective for an exposure route is more stringent than the Tier 1 soil remediation objective(s) for the other exposure routes, then the Tier 2 calculated soil remediation objective applies and Tier 2 soil remediation objectives for the other exposure routes are not required. |
| h) | If the calculated Tier 2 soil remediation objective is less stringent than one or more of the soil remediation objectives for the remaining exposure routes, then the Tier 2 values are calculated for the remaining exposure route(s) and the most stringent Tier 2 calculated value applies. |
| a) | Present and post-remediation land use is evaluated in a Tier 2 evaluation. Acceptable exposure factors for the Tier 2 evaluation for residential, industrial/commercial, and construction worker populations are provided in the far right column of Appendix C, Tables B and D. Use of exposure factors different from those in Appendix C, Tables B and D must be approved by the Agency as part of a Tier 3 evaluation. |
| b) | If a Tier 2 evaluation is based on an industrial/commercial property use, then: |
| 1) | Construction worker populations shall also be evaluated; and |
| 2) | Institutional controls are required in accordance with Subpart J. | |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
| a) | Physical and Chemical Properties of Contaminants |
| Tier 2 evaluations require information on the physical and chemical properties of the contaminants of concern. The physical and chemical properties used in a Tier 2 evaluation are contained in Appendix C, Table E. If the site has contaminants not included in this table, a person may request the Agency to provide the applicable physical and chemical input values or may propose input values under Subpart I. If a person proposes to apply values other than those in Appendix C, Table E, or those provided by the Agency, the evaluation shall be considered under Tier 3. | |
| 1) | A Tier 2 evaluation requires examination of soil and groundwater parameters. The parameters that may be varied, and the conditions under which these parameters are determined as part of Tier 2, are summarized in Appendix C, Tables B and D. If a person proposes to vary site-specific parameters outside of the framework of these tables, the evaluation shall be considered under Tier 3. |
| 2) | To determine site-specific physical soil parameters, a minimum of one boring per 0.5 acre of contamination shall be collected. This boring must be deep enough to allow the collection of the required field measurements. The site-specific physical soil parameters must be determined from the portion of the boring representing the stratigraphic unit(s) being evaluated. For example, if evaluating the soil component of the groundwater ingestion exposure route, two samples from the boring will be required: |
| 3) | A site-specific SSL dilution factor (used in developing soil remediation objectives based upon the protection of groundwater) may be determined by substituting site information in Equation S22 in Appendix C, Table A. To make this demonstration, a minimum of three monitoring wells shall be used to determine the hydraulic gradient. As an alternative, the default dilution factor value listed in Appendix C, Table B may be used. If monitoring wells are used to determine the hydraulic gradient, the soil taken from the borings shall be visually inspected to ensure there are no significant differences in the stratigraphy. If there are similar soil types in the field, one boring shall be used to determine the site-specific physical soil parameters. If there are significant differences, all of the borings shall be evaluated before determining the site-specific physical soil parameters for the site. |
| 4) | Not all of the parameters identified in Appendix C, Tables B and D need to be determined on a site-specific basis. A person may choose to collect partial site-specific information and use default values as listed in Appendix C, Tables B and D for the rest of the parameters. |
| a) | Tier 2 remediation objectives are developed through the use of models which allow site-specific data to be considered. Appendix C, Tables A and C list equations that shall be used under a Tier 2 evaluation to calculate soil remediation objectives prescribed by SSL and RBCA models, respectively. (See also Appendix C, Illustration A.) |
| b) | Appendix C, Table A lists equations that are used under the SSL model. (See also Appendix C, Illustration A.) The SSL model has equations to evaluate the following human exposure routes: |
| 1) | Soil ingestion exposure route; |
| 2) | Inhalation exposure route for: |
| A) | Organic contaminants; |
| B) | Fugitive dust; and |
| 3) | Soil component of the groundwater ingestion exposure route. |
| c) | Evaluation of the dermal exposure route is not required under the SSL model. |
| d) | Appendix C, Table C lists equations that are used under the RBCA model. (See also Appendix C, Illustration A.) The RBCA model has equations to evaluate human exposure based on the following: |
| 1) | The combined exposure routes of inhalation of vapors and particulates, soil ingestion and dermal contact with soil; |
| 2) | The ambient vapor inhalation (outdoor) route from subsurface soils; |
| 3) | Soil component of the groundwater ingestion route; and |
| 4) | Groundwater ingestion exposure route. |
| e) | The equations in either Appendix C, Table A or C may be used to calculate remediation objectives for each contaminant of concern under Tier 2, if the following requirements are met: |
| 1) | The Tier 2 soil remediation objectives for the ingestion and inhalation exposure routes shall use the applicable equations from the same approach (i.e., SSL equations in Appendix C, Table C). |
| 2) | The equations used to calculate soil remediation objectives for the soil component of the groundwater ingestion exposure route are not dependent on the approach utilized to calculate soil remediation objectives for the other exposure routes. For example, it is acceptable to use the SSL equations for calculating Tier 2 soil remediation objectives for the ingestion and inhalation exposure routes, and the RBCA equations for calculating Tier 2 soil remediation objectives for the soil component of the groundwater ingestion exposure route. |
| 3) | Combining equations from Appendix C, Tables A and C to form a new model is not allowed. In addition, Appendix C, Tables A and C must use their own applicable parameters identified in Appendix C, Tables B and D, respectively. |
| f) | In calculating soil remediation objectives for industrial/commercial property use, applicable calculations shall be performed twice: once using industrial/commercial population default values and once using construction worker population default values. The more stringent soil remediation objectives derived from these calculations must be used for further Tier 2 evaluations. |
| g) | Tier 2 data sheets provided by the Agency shall be used to present calculated Tier 2 remediation objectives, if required by the particular program for which remediation is being performed. |
| h) | The RBCA equations which rely on the parameter Soil Water Sorption Coefficient (ks) can only be used for ionizing organics and inorganics by substituting values for ks from Appendix C, Tables I and J, respectively. This will also require the determination of a site-specific value for soil pH. | |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
| a) | Appendix C, Tables B and D list the input parameters for the SSL and RBCA equations, respectively. The first column lists each symbol as it is presented in the equation. The next column defines the parameters. The third column shows the units for the parameters. The fourth column identifies where information on the parameters can be obtained (i.e., field measurement, applicable equation(s), reference source, or default value). The last column identifies how the parameters can be generated. |
| b) | Default Values |
| Default values are numerical values specified for use in the Tier 2 equations. The fourth column of Appendix C, Tables B and D denotes if the default values are from the SSL model, RBCA model, or some other source. The last column of Appendix C, Tables B and D lists the numerical values for the default values used in the SSL and RBCA equations, respectively. | |
| c) | Site-specific Information |
| Site-specific information is a parameter measured, obtained, or determined from the site to calculate Tier 2 remediation objectives. The fourth column of Appendix C, Tables B and D identifies those site-specific parameters that may require direct field measurement. For some parameters, numerical default inputs have been provided in the last column of Appendix C, Tables B and D to substitute for site-specific information. In some cases, information on the receptor or soil type is required to select the applicable numerical default inputs. Site-specific information includes: | |
| 1) | Physical soil parameters identified in Appendix C, Table F. The second column identifies the location where the sample is to be collected. Acceptable methods for measuring or calculating these soil parameters are identified in the last column of Appendix C, Table F; |
| 2) | Institutional controls or engineered barriers, pursuant to Subparts J and K, describe applicable institutional controls and engineered barriers under a Tier 2 evaluation; and |
| 1) | Toxicological-specific information is used to calculate Tier 2 remediation objectives for the following parameters, if applicable: |
| B) | Oral Subchronic Reference Dose (RfDs, expressed in mg/kg-d, shall be used for construction worker remediation objective calculations); |
| E) | Inhalation Chronic Reference Concentration (RfC, expressed in mg/m3); |
| F) | Inhalation Subchronic Reference Concentration (RfCs, expressed in mg/m3, shall be used for construction worker remediation objective calculations); |
| H) | Inhalation Subchronic Reference Dose (RfDis, expressed in mg/kg-d, shall be used for construction worker remediation objective calculations); and |
| 2) | Toxicological information can be obtained from IRIS, as incorporated by reference in Section 742.210, or the program under which the remediation is being performed. |
| e) | Chemical-specific Information |
| Chemical-specific information used to calculate Tier 2 remediation objectives is listed in Appendix C, Table E. | |
| f) | Calculations |
| Calculating numerical values for some parameters requires the use of equations listed in Appendix C, Table A or C. The parameters that are calculated are listed in Appendix C, Tables B and D. | |
| a) | This Section sets forth the equations and parameters used to develop Tier 2 soil remediation objectives for the three exposure routes using the SSL approach. |
| b) | Soil Ingestion Exposure Route |
| 1) | Equations S1 through S3 form the basis for calculating Tier 2 remediation objectives for the soil ingestion exposure route using the SSL approach. Equation S1 is used to calculate soil remediation objectives for noncarcinogenic contaminants. Equations S2 and S3 are used to calculate soil remediation objectives for carcinogenic contaminants for residential populations and industrial/commercial and construction worker populations, respectively. |
| 2) | For Equations S1 through S3, the SSL default values cannot be modified with site-specific information. |
| c) | Inhalation Exposure Route |
| 1) | Equations S4 through S16, S26 and S27 are used to calculate Tier 2 soil remediation objectives for the inhalation exposure route using the SSL approach. To address this exposure route, organic contaminants and mercury must be evaluated separately from fugitive dust using their own equations set forth in subsections (c)(2) and (c)(3) of this Section, respectively. |
| 2) | Organic Contaminants |
| A) | Equations S4 through S10 are used to calculate Tier 2 soil remediation objectives for organic contaminants and mercury based on the inhalation exposure route. Equation S4 is used to calculate soil remediation objectives for noncarcinogenic organic contaminants in soil for residential and industrial/commercial populations. Equation S5 is used to calculate soil remediation objectives for noncarcinogenic organic contaminants and mercury in soil for construction worker populations. Equation S6 is used to calculate soil remediation objectives for carcinogenic organic contaminants in soil for residential and industrial/commercial populations. Equation S7 is used to calculate soil remediation objectives for carcinogenic organic contaminants in soil for construction worker populations. Equations S8 through S10, S27 and S28 are used for calculating numerical values for some of the parameters in Equations S4 through S7. | ||
| B) | For Equation S4, a numerical value for the Volatilization Factor (VF) can be calculated in accordance with subsection (c)(2)(F) of this Section. The remaining parameters in Equation S4 have either SSL default values listed in Appendix C, Table B or toxicological-specific information (i.e., RfC), which can be obtained from IRIS or requested from the program under which the remediation is being performed. | ||
| C) | For Equation S5, a numerical value for the Volatilization Factor adjusted for Agitation (VF') can be calculated in accordance with subsection (c)(2)(G) of this Section. The remaining parameters in Equation S5 have either SSL default values listed in Appendix C, Table B or toxicological-specific information (i.e., RfC), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| D) | For Equation S6, a numerical value for VF can be calculated in accordance with subsection (c)(2)(F) of this Section. The remaining parameters in Equation S6 have either default values listed in Appendix C, Table B or toxicological-specific information (i.e., URF), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| E) | For Equation S7, a numerical value for VF' can be calculated in accordance with subsection (c)(2)(G) of this Section. The remaining parameters in Equation S7 have either default values listed in Appendix C, Table B or toxicological-specific information (i.e., URF), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| F) | The VF can be calculated for residential and industrial/commercial populations using one of the following equations based on the information known about the contaminant source and receptor population: |
| i) | Equation S8, in conjunction with Equation S10, is used to calculate VF assuming an infinite source of contamination; or |
| ii) | If the area and depth of the contaminant source are known or can be estimated reliably, mass limit considerations may be used to calculate VF using Equation S26. |
| G) | The VF' can be calculated for the construction worker populations using one of the following equations based on the information known about the contaminant source: |
| i) | Equation S9 is used to calculate VF' assuming an infinite source of contamination; or |
| ii) | If the area and depth of the contaminant source are known or can be estimated reliably, mass limit considerations may be used to calculate VF' using Equation S27. |
| 3) | Fugitive Dust |
| A) | Equations S11 through S16 are used to calculate Tier 2 soil remediation objectives using the SSL fugitive dust model for the inhalation exposure route. Equation S11 is used to calculate soil remediation objectives for noncarcinogenic contaminants in fugitive dust for residential and industrial/commercial populations. Equation S12 is used to calculate soil remediation objectives for noncarcinogenic contaminants in fugitive dust for construction worker populations. Equation S13 is used to calculate soil remediation objectives for carcinogenic contaminants in fugitive dust for residential and industrial/commercial populations. Equation S14 is used to calculate soil remediation objectives for carcinogenic contaminants in fugitive dust for construction worker populations. Equations S15 and S16 are used for calculating numerical quantities for some of the parameters in Equations S11 through S14. |
| B) | For Equation S11, a numerical value can be calculated for the Particulate Emission Factor (PEF) using Equation S15. This equation relies on various input parameters from a variety of sources. The remaining parameters in Equation S11 have either SSL default values listed in Appendix C, Table B or toxicological-specific information (i.e., RfC), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| C) | For Equation S12, a numerical value for the Particulate Emission Factor for Construction Worker (PEF') can be calculated using Equation S16. The remaining parameters in Equation S12 have either SSL default values listed in Appendix C, Table B or toxicological-specific information (i.e., RfC), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| D) | For Equation S13, a numerical value for PEF can be calculated using Equation S15. The remaining parameters in Equation S13 have either default values listed in Appendix C, Table B or toxicological-specific information (i.e., URF), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| E) | For Equation S14, a numerical value for PEF' can be calculated using Equation S16. The remaining parameters in Equation S14 have either default values listed in Appendix C, Table B or toxicological-specific information (i.e., URF), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| d) | Soil Component of the Groundwater Ingestion Exposure Route |
The Tier 2 remediation objective for the soil component of the groundwater ingestion exposure route can be calculated using one of the following equations based on the information known about the contaminant source and receptor population:
| 1) | Equation S17 is used to calculate the remediation objective assuming an infinite source of contamination. |
| A) | The numerical quantities for four parameters in Equation S17, the Target Soil Leachate Concentration (Cw), Soil-Water Partition Coefficient (Kd) for non-ionizing organics, Water-Filled Soil Porosity Theta w (q w) and Air-Filled Soil Porosity Theta a ( q a), are calculated using Equations S18, S19, S20 and S21, respectively. Equations S22, S23, S24 and S25 are also needed to calculate numerical values for Equations S18 and S21. The pH-dependent Kd values for ionizing organics can be calculated using Equation S19 and the pH-dependent Koc values in Appendix C, Table I. |
| B) | The remaining parameters in Equation S17 are Henry's Law Constant (H'), a chemical specific value listed in Appendix C, Table E and Dry Soil Bulk Density (r b), a site-specific based value listed in Appendix C, Table B. |
| C) | The default value for GWobj is the Tier 1 groundwater objective. For chemicals for which there is no Tier 1 groundwater remediation objective, the value for GWobj shall be the concentration determined according to the procedures specified in 35 Ill. Adm. Code 620, Subpart F. As an alternative to using Tier 1 groundwater remediation objectives or concentrations determined according to the procedures specified in 35 Ill. Adm. Code 620, Subpart F. GWobj may be developed using Equations R25 and R26, if approved institutional controls are in place as required in Subpart J. |
| 2) | If the area and depth of the contaminant source are known or can be estimated reliably, mass limit considerations may be used to calculate the remediation objective for this exposure route using Equation S28. The parameters in Equation S28 have default values listed in Appendix C, Table B. | |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
Section 742.715 RBCA Soil Equations
| a) | This Section presents the RBCA model and describes the equations and parameters used to develop Tier 2 soil remediation objectives. |
| b) | Ingestion, Inhalation, and Dermal Contact |
| 1) | The two sets of equations in subsections (b)(2) and (b)(3) of this Section shall be used to generate Tier 2 soil remediation objectives for the combined ingestion, inhalation, and dermal contact with soil exposure routes. |
| 2) | Combined Exposure Routes of Soil Ingestion, Inhalation of Vapors and Particulates, and Dermal Contact with Soil |
| A) | Equations R1 and R2 form the basis for deriving Tier 2 remediation objectives for the set of equations that evaluates the combined exposure routes of soil ingestion, inhalation of vapors and particulates, and dermal contact with soil using the RBCA approach. Equation R1 is used to calculate soil remediation objectives for carcinogenic contaminants. Equation R2 is used to calculate soil remediation objectives for noncarcinogenic contaminants. Soil remediation objectives for the ambient vapor inhalation (outdoor) route from subsurface soils must also be calculated in accordance with the procedures outlined in subsection (b)(3) of this Section and compared to the values generated from Equations R1 or R2. The smaller value (i.e., R1 and R2 compared to R7 and R8, respectively) from these calculations is the Tier 2 soil remediation objective for the combined exposure routes of soil ingestion, inhalation, and dermal contact with soil. |
| B) | In Equation R1, numerical values are calculated for two parameters: |
| i) | The volatilization factor for surficial soils (VFss) using Equations R3 and R4; and |
| ii) | The volatilization factor for subsurface soils regarding particulates (VFp) using Equation R5. |
| C) | VFss uses Equations R3 and R4 to derive a numerical value. Equation R3 requires the use of Equation R6. Both equations must be used to calculate the VFss. The lowest calculated value from these equations must be substituted into Equation R1. |
| D) | The remaining parameters in Equation R1 have either default values listed in Appendix C, Table D or toxicological-specific information (i.e., SFo, SFi), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| E) | For Equation R2, the parameters VFss and VFp are calculated. The remaining parameters in Equation R2 have either default values listed in Appendix C, Table D or toxicological-specific information (i.e., RfDo, RfDi), which can be obtained from IRIS or requested from the program under which the remediation is being performed. |
| F) | For chemicals other than inorganics which do not have default values for the dermal absorption factor (RAFd) in Appendix C, Table D, a dermal absorption factor of 0.5 shall be used for Equations R1 and R2. For inorganics, dermal absorption may be disregarded (i.e., RAFd = 0). |
| 3) | Ambient Vapor Inhalation (outdoor) route from Subsurface Soils (soil below one meter) |
| A) | Equations R7 and R8 form the basis for deriving Tier 2 remediation objectives for the ambient vapor inhalation (outdoor) route from subsurface soils using the RBCA approach. Equation R7 is used to calculate soil remediation objectives for carcinogenic contaminants. Equation R8 is used to calculate soil remediation objectives for noncarcinogenic contaminants. |
| B) | For Equation R7, the carcinogenic risk-based screening level for air (RBSLair) and the volatilization factor for soils below one meter to ambient air (VFsamb) have numerical values that are calculated using Equations R9 and R11, respectively. Both equations rely on input parameters from a variety of sources. |
| C) | The noncarcinogenic risk-based screening level for air (RBSLair) and the volatilization factor for soils below one meter to ambient air (VFsamb) in Equation R8 have numerical values that can be calculated using Equations R10 and R11, respectively. |
| c) | Soil Component of the Groundwater Ingestion Exposure Route |
| 1) | Equation R12 forms the basis for deriving Tier 2 remediation objectives for the soil component of the groundwater ingestion exposure route using the RBCA approach. The parameters, groundwater at the source (GWsource) and Leaching Factor (LFsw), have numerical values that are calculated using Equations R13 and R14, respectively. |
| 2) | Equation R13 requires numerical values that are calculated using Equation R15. |
| 3) | Equation R14 requires numerical values that are calculated using Equations R21, R22, and R24. For non-ionizing organics, the Soil Water Sorption Coefficient ks shall be calculated using Equation R20. For ionizing organics and inorganics, the values for (ks) are listed in Appendix C, Tables I and J, respectively. The pH-dependent ks values for ionizing organics can be calculated using Equation R20 and the pH-dependent Koc values in Appendix C, Table I. The remaining parameters in Equation R14 are field measurements or default values listed in Appendix C, Table D. |
| d) | The default value for GWcomp is the Tier 1 groundwater remediation objective. For chemicals for which there is no Tier 1 groundwater remediation objective, the value for GWcomp shall be the concentration determined according to the procedures specified in 35 Ill. Adm. Code 620, Subpart F. As an alternative to using the above concentrations, GWcomp may be developed using Equations R25 and R26, if approved institutional controls are in place as may be required in Subpart J. |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
| b) | Divide each individual chemical's remediation objective by the number of chemicals in that specific target organ group that were detected at the site. Each of the contaminant concentrations at the site is then compared to the remediation objectives that have been adjusted to account for this potential additivity. For the noncarcinogenic contaminants listed in Appendix A, Table E, a respective soil remediation objective need be no lower than the respective value listed in Appendix B, Table A or B. |
| a) | Demonstrate that the groundwater ingestion exposure route is excluded from consideration pursuant to Subpart C; |
| b) | Demonstrate that the groundwater contamination is at or below area background concentrations in accordance with Subpart D and, if necessary, an institutional control restricting usage of the groundwater is in place in accordance with Subpart J; |
| d) | Propose and obtain approval of Tier 2 groundwater remediation objectives in accordance with Section 742.805 and remediate to that level, if necessary; |
| e) | Conduct a Tier 3 evaluation in accordance with Subpart I; or |
| 1) | Reclassify the groundwater pursuant to 35 Ill. Adm. Code 620.260; or |
| 2) | Use an adjusted standard pursuant to Section 28.1 of the Act. [415 ILCS 5/28.1]. |
| a) | To develop a groundwater remediation objective under this Section that exceeds the applicable Tier 1 groundwater remediation objective, or for which there is no Tier I groundwater remediation objective, a person may request approval from the Agency if the person has performed the following: |
| 1) | Identified the horizontal and vertical extent of groundwater for which the Tier 2 groundwater remediation objective is sought; |
| 2) | Taken corrective action, to the maximum extent practicable to remove any free product; |
| 3) | Using Equation R26 in accordance with Section 742.810, demonstrated that the concentration of any contaminant of concern in groundwater will meet: |
| A) | The applicable Tier 1 groundwater remediation objective at the point of human exposure; or |
| B) | For any contaminant of concern for which there is no Tier 1 groundwater remediation objective, the concentration determined according to the procedures specified in 35 Ill. Adm. Code 620 at the point of human exposure. A person may request the Agency to provide these concentrations or may propose these concentrations under Subpart I; |
| 4) | Using Equation R26 in accordance with Section 742.810, demonstrated that the concentration of any contaminant of concern in groundwater within the minimum or designated maximum setback zone of an existing potable water supply well will meet the applicable Tier 1 groundwater remediation objective or, if there is no Tier 1 groundwater remediation objective, the concentration determined according to the procedures specified in 35 Ill. Adm. Code 620. A person may request the Agency to provide these concentrations or may propose these concentrations under Subpart I; |
| 5) | Using Equation R26 in accordance with Section 742.810, demonstrated that the concentration of any contaminant of concern in groundwater discharging into a surface water will meet the applicable water quality standard under 35 Ill. Adm. Code 302; |
| 6) | Demonstrated that the source of the release is not located within the minimum or designated maximum setback zone or within a regulated recharge area of an existing potable water supply well; and |
| 7) | If the selected corrective action includes an engineered barrier as set forth in Subpart K to minimize migration of contaminant of concern from the soil to the groundwater, demonstrated that the engineered barrier will remain in place for post-remediation land use through an institutional control as set forth in Subpart J. |
| b) | A groundwater remediation objective that exceeds the water solubility of that chemical (refer to Appendix C, Table E for solubility values) is not allowed. |
| c) | The contaminants of concern for which a Tier 1 remediation objective has been developed shall be included in any mixture of similar-acting chemicals under consideration in Tier 2. The evaluation of 35 Ill. Adm. Code 620.615 regarding mixtures of similar-acting chemicals shall be considered satisfied for Class I groundwater at the point of human exposure if either of the following requirements are achieved: |
| 1) | Calculate the weighted average using the following equations: |
where:
Wave = Weighted Average
| x1 through xa = | Concentration of each individual contaminant at the location of concern. Note that, depending on the target organ, the actual number of contaminants will range from 2 to 33. |
| CUOxa = | A Tier 1 or Tier 2 remediation objective must be developed for each xa. |
| A) | If the value of the weighted average calculated in accordance with the equations above is less than or equal to 1.0, then the remediation objectives are met for those chemicals. |
| B) | If the value of the weighted average calculated in accordance with the equations above is greater than 1.0, then additional remediation must be carried out until the level of contaminants remaining in the remediated area has a weighted average calculated in accordance with the equation above less than or equal to one; or |
| 2) | Divide each individual chemical's remediation objective by the number of chemicals in that specific target organ group that were detected at the site. Each of the contaminant concentrations at the site is then compared to the remediation objectives that have been adjusted to account for this potential additivity. |
| d) | The evaluation of 35 Ill. Adm. Code 620.615 regarding mixtures of similar-acting chemicals are considered satisfied if the cumulative risk from any contaminant(s) of concern listed in Appendix A, Table I, plus any other contaminant(s) of concern detected in groundwater and listed in Appendix A, Table F as affecting the same target organ/organ system as the contaminant(s) of concern detected from Appendix A, Table I, does not exceed 1 in 10,000. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Section 742.810 | Calculations to Predict Impacts from Remaining Groundwater Contamination |
| a) | Equation R26 predicts the contaminant concentration along the centerline of a groundwater plume emanating from a vertical planar source in the aquifer (dimensions Sw wide and Sd deep). This model accounts for both three-dimensional dispersion (x is the direction of groundwater flow, y is the other horizontal direction, and z is the vertical direction) and biodegradation. |
| 1) | The parameters in this equation are: |
| X = | distance from the planar source to the location of concern, along the centerline of the groundwater plume (i.e., y=0, z=0) |
| Cx = | the concentration of the contaminant at a distance X from the source, along the centerline of the plume |
| Csource = | the greatest potential concentration of the contaminant of concern in the groundwater at the source of the contamination, based on the concentrations of contaminants in groundwater due to the release and the projected concentration of the contaminant migrating from the soil to the groundwater. As indicated above, the model assumes a planar source discharging groundwater at a concentration equal to Csource. |
a x = dispersivity in the x direction (i.e., Equation R16)
a y = dispersivity in the y direction (i.e., Equation R17)
a z = dispersivity in the z direction (i.e., Equation R18)
| U = | specific discharge (i.e., actual groundwater flow velocity through a porous medium; takes into account the fact that the groundwater actually flows only through the pores of the subsurface materials) where the aquifer hydraulic conductivity (K), the hydraulic gradient (I) and the total soil porosity q T must be known (i.e., Equation R19) |
| l = | first order degradation constant obtained from Appendix C, Table E or from measured groundwater data |
Sw = width of planar groundwater source in the y direction
Sd = depth of planar groundwater source in the z direction
| 2) | The following parameters are determined through field measurements: U, K, I, q T, Sw, Sd. |
| A) | The determination of values for U, K, I and q T can be obtained through the appropriate laboratory and field techniques; |
| B) | From the immediate down-gradient edge of the source of the groundwater contamination values for Sw and Sd shall be determined. Sw is defined as the width of groundwater at the source which exceeds the Tier 1 groundwater remediation objective. Sd is defined as the depth of groundwater at the source which exceeds the Tier 1 groundwater remediation objective; and |
| C) | Total soil porosity can also be calculated using Equation R23. |
| b) | Once values are obtained for all the input parameters identified in subsection (a) of this Section, the contaminant concentration Cx along the centerline of the plume at a distance X from the source shall be calculated so that X is the distance from the down-gradient edge of the source of the contamination at the site to the point where the contaminant concentration is equal to the Tier 1 groundwater remediation objective or concentration determined according to the procedures specified in 35 Ill. Adm. Code 620, Subpart F. |
| 1) | If there are any potable water supply wells located within the calculated distance X, then the Tier 1 groundwater remediation objective or concentration shall be met at the edge of the minimum or designated maximum setback zone of the nearest potable water supply down-gradient of the source. To demonstrate that a minimum or maximum setback zone of a potable water supply well will not be impacted above the applicable Tier 1 groundwater remediation objective or concentration determined according to the procedures specified in 35 Ill. Adm. Code 620, Subpart F, X shall be the distance from the Csource location to the edge of the setback zone. |
| 2) | To demonstrate that no surface water is adversely impacted, X shall be the distance from the down-gradient edge of the source of the contamination site to the nearest surface water body. This calculation must show that the contaminant in the groundwater at this location (Cx) does not exceed the applicable water quality standard. | ||
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
SUBPART I: TIER 3 EVALUATION
Section 742.900 Tier 3 Evaluation Overview
a)
Tier 3 sets forth a flexible framework to develop remediation objectives outside of the requirements of Tiers 1 and 2. Although Tier 1 and Tier 2 evaluations are not prerequisites to conduct Tier 3 evaluations, data from Tier 1 and Tier 2 can assist in developing remediation objectives under a Tier 3 evaluation. b)
The level of detail required to adequately characterize a site depends on the particular use of Tier 3. Tier 3 can require additional investigative efforts beyond those described in Tier 2 to characterize the physical setting of the site. However, in situations where remedial efforts have simply reached a physical obstruction additional investigation may not be necessary for a Tier 3 submittal. c)
Situations that can be considered for a Tier 3 evaluation include, but are not limited to: 1)
Modification of parameters not allowed under Tier 2; 2)
Use of models different from those used in Tier 2; 3)
Use of additional site data to improve or confirm predictions of exposed receptors to contaminants of concern; 4)
Analysis of site-specific risks using formal risk assessment, probabilistic data analysis, and sophisticated fate and transport models (e.g., requesting a target hazard quotient greater than 1 or a target cancer risk greater than 1 in 1,000,000); 5)
Requests for site-specific remediation objectives because an assessment indicates further remediation is not practical; 6)
Incomplete human exposure pathway(s) not excluded under Subpart C; 7)
Use of toxicological-specific information not available from the sources listed in Tier 2; 8)
Land uses which are substantially different from the assumed residential or industrial/commercial property uses of a site (e.g., a site will be used for recreation in the future and cannot be evaluated in Tier 1 or 2); and 9)
Requests for site-specific remediation objectives that exceed Tier 1 groundwater remediation objectives so long as the following is demonstrated: A)
To the extent practical, the exceedance of the groundwater quality standard has been minimized and beneficial use appropriate to the groundwater that was impacted has been returned; and B)
Any threat to human health or the environment has been minimized. [415 ILCS 5/58.5(d)(4)(A)] d)
For requests of a target cancer risk ranging between 1 in 1,000,000 and 1 in 10,000 at the point of human exposure or a target hazard quotient greater than 1 at the point of human exposure, the requirements of Section 742.915 shall be followed. Requests for a target cancer risk exceeding 1 in 10,000 at the point of human exposure are not allowed. e)
Requests for approval of a Tier 3 evaluation must be submitted to the Agency for review under the specific program under which remediation is performed. When reviewing a submittal under Tier 3, the Agency shall consider whether the interpretations and conclusions reached are supported by the information gathered. [415 ILCS 58.7(e)(1)]. The Agency shall approve a Tier 3 evaluation if the person submits the information required under this Part and establishes through such information that public health is protected and that specified risks to human health and the environment have been minimized. f)
If contaminants of concern include polychlorinated biphenyls (PCBs), requests for approval of a Tier 3 evaluation must additionally address the applicability of 40 CFR 761. (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007)
Section 742.905 Modifications of Parameters
Any proposed changes to Tier 2 parameters which are not provided for in Tier 2 shall be submitted to the Agency for review and approval. A submittal under this Section shall include the following information:
a) The justification for the modification; and
b) The technical and mathematical basis for the modification.
Section 742.910 Alternative Models
Any proposals for the use of models other than those specified in Tier 2 shall be submitted to the Agency for review and approval. A submittal under this Section shall include the following information:
a) Physical and chemical properties of contaminants of concern;
b) Contaminant movement properties;
c) Contaminant availability to receptors;
d) Receptor exposure to the contaminants of concern;
e) Mathematical and technical justification for the model proposed;
| f) | A licensed copy of the model, if the Agency does not have a licensed copy of the model currently available for use; and |
| Section 742.915 | Formal Risk Assessments |
| a) | Whether the risk assessment procedure used is nationally recognized and accepted including, but not limited to, those procedures incorporated by reference in Section 742.210; |
| c) | The adequacy of the investigation of present and post-remediation exposure routes and risks to receptors identified at the site; |
| h) | Similar-acting chemicals shall be specifically addressed. At a minimum, the chemicals subject to this requirement are identified in Appendix A, Tables E and F; and |
| i) | Proposals seeking to modify the target risk consistent with Section 742.900(d) shall address the following factors: |
| g) | Present and post-remediation uses of the area of contamination, including human receptors at risk. |
Section 742.925 Exposure Routes
Technical information may demonstrate that there is no actual or potential impact of contaminants of concern to receptors from a particular exposure route. In these instances, a demonstration excluding an exposure route shall be submitted to the Agency for review and approval. A submittal under this Section shall include the following information:
| a) | A description of the route evaluated; |
| b) | A description of the site and physical site characteristics; |
| c) | A discussion of the result and possibility of the route becoming active in the future; and |
| d) | Technical support that may include, but is not limited to, the following: |
| 1) | a discussion of the natural or man-made barriers to that exposure route; |
| 2) | calculations and modeling; |
| 3) | physical and chemical properties of contaminants of concern; and |
| 4) | contaminant migration properties. |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
SUBPART J: INSTITUTIONAL CONTROLS
Section 742.1000 Institutional Controls
| a) | Institutional controls in accordance with this Subpart must be placed on the property when remediation objectives are based on any of the following assumptions: |
| 1) | Industrial/Commercial property use; |
| 2) | Target cancer risk greater than 1 in 1,000,000; |
| 3) | Target hazard quotient greater than 1; |
| 4) | Engineered barriers; |
| 5) | The point of human exposure is located at a place other than at the source; |
| 6) | Exclusion of exposure routes; or |
| 7) | Any combination of the above. |
| b) | The Agency shall not approve any remediation objective under this Part that is based on the use of institutional controls unless the person has proposed institutional controls meeting the requirements of this Subpart and the requirements of the specific program under which the institutional control is proposed. A proposal for approval of institutional controls shall provide identification of the selected institutional controls from among the types recognized in this Subpart. |
| c) | The following instruments may be institutional controls subject to the requirements of this Subpart J and the requirements of the specific program under which the institutional control is proposed: |
| 1) | No Further Remediation Letters; |
2) Environmental Land Use Controls;
3) Land Use Control Memoranda of Agreement;
| 4) | Ordinances adopted and administered by a unit of local government; |
| 5) | Agreements between a property owner (or, in the case of a petroleum leaking underground storage tank, the owner or operator of the tank) and a highway authority with respect to any contamination remaining under highways; and |
| 6) | Agreements between a highway authority that is also the property owner (or, in the case of a petroleum leaking underground storage tank, the owner or operator of the tank) and the Agency with respect to any contamination remaining under the highways. |
| d) | No Further Remediation Letters and Environmental Land Use Controls that meet the requirements of this Subpart and the recording requirements of the program under which remediation is being performed are transferred with the property. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| a) | A No Further Remediation Letter issued by the Agency under 35 Ill. Adm. Code 732 or 740 may be used as an institutional control under this Part if the requirements of subsection (b) of this Section are met. | ||
| b) | A request for approval of a No Further Remediation Letter as an institutional control shall meet the requirements applicable to the specific program under which the remediation is performed. |
| a) | An Environmental Land Use Control (ELUC) is an institutional control that may be used under this Part to impose land use limitations or requirements related to environmental contamination. ELUCs are only effective when approved by the Agency in accordance with this Part. Activities or uses that may be limited or required include, but are not limited to, prohibition of use of groundwater for potable purposes, restriction to industrial/commercial uses, operation or maintenance of engineered barriers, or worker safety plans. ELUCs may be used in the following circumstances: |
| 1) | When No Further Remediation Letters are not available, including but not limited to when contamination has migrated off-site or outside the remediation site; or | |
| 2) | When No Further Remediation Letters are not issued under the program for which a person is undergoing remediation. | |
| b) | Recording requirements: |
| 1) | An ELUC approved by the Agency pursuant to this Section must be recorded in the Office of the Recorder or Registrar of Titles for the county in which the property that is the subject of the ELUC is located. A copy of the ELUC demonstrating that it has been recorded must be submitted to the Agency before the Agency will issue a no further remediation determination. |
| 2) | An ELUC approved under this Section will not become effective until officially recorded in the chain of title for the property that is the subject of the ELUC in accordance with subsection (b)(1) of this Section. |
| 3) | Reference to the recorded ELUC must be made in the instrument memorializing the Agency’s no further remediation determination. Recording of the no further remediation determination and confirmation of recording must be in accordance with the requirements of the program under which the determination was issued. | |
| 4) | The requirements of this Section do not apply to Federally Owned Property for which the Federal Landholding Entity does not have the authority under federal law to record land use limitations on the chain of title. | |
| 5) | The requirements of this Section apply only to those sites for which a request for a no further remediation determination has not yet been made to the Agency by January 6, 2001. | |
c) Duration:
| 1) | Except as provided in this subsection (c), an ELUC shall remain in effect in perpetuity. |
| 2) | At no time shall any site for which an ELUC has been imposed as a result of remediation activities under this Part be used in a manner inconsistent with the land use limitation unless attainment of objectives appropriate for the new land use is achieved and a new no further remediation determination has been obtained and recorded in accordance with the program under which the ELUC was first imposed or the Site Remediation Program (35 Ill. Adm. Code 740). [415 ILCS 58.8(c)]. In addition, the appropriate release or modification of the ELUC must be prepared by the Agency and filed on the chain of title for the property that is the subject of the ELUC. |
| A) | For a Leaking Underground Storage Tank (LUST) site under 35 Ill. Adm. Code 731 or 732 or a Site Remediation Program site under 35 Ill. Adm. Code 740, an ELUC may be released or modified only if the NFR Letter is also modified under the Site Remediation Program to reflect the change; |
| B) | For a RCRA site under 35 Ill. Adm. Code 721-730, an ELUC may be released or modified only if there is also an amended certification of closure or a permit modification. |
| 3) | In addition to any other remedies that may be available, a failure to comply with the limitations or requirements of an ELUC may result in voidance of an Agency no further remediation determination in accordance with the program under which the determination was made. The failure to comply with the limitations or requirements of an ELUC may also be grounds for an enforcement action pursuant to Title VIII of the Act. |
| d) | An ELUC submitted to the Agency must match the form and contain the same substance, except for variable elements (e.g., name of property owner), as the model in Appendix F and must contain the following elements: |
| 1) | Name of property owners and declaration of property ownership; |
| 2) | Identification of the property to which the ELUC applies by common address, legal description, and Real Estate Tax Index/Parcel Index Number; |
| 3) | A reference to the Bureau of Land LPC numbers or 10-digit identification numbers under which the remediation was conducted; |
| 4) | A statement of the reason for the land use limitation or requirement relative to protecting human health and the surrounding environment from soil, groundwater, and/or other environmental contamination; |
| 5) | The language instituting such land use limitations or requirements; |
| 6) | A statement that the limitations or requirements apply to the current owners, occupants, and all heirs, successors, assigns, and lessees; |
| 7) | A statement that the limitations or requirements apply in perpetuity or until: | |
| A) | The Agency determines that there is no longer a need for the ELUC; | |
| B) | The Agency, upon written request, issues to the site that received the no further remediation determination that relies on the ELUC a new no further remediation determination approving modification or removal of the limitations or requirements; | |
| C) | The new no further remediation determination is filed on the chain of title of the site subject to the no further remediation determination; and |
| D) | A release or modification of the land use limitation is filed on the chain of title for the property that is the subject of the ELUC; |
| 8) | Scaled site maps showing: |
| A) | The legal boundary of the property to which the ELUC applies; |
| B) | The horizontal and vertical extent of contaminants of concern above applicable remediation objectives for soil and groundwater to which the ELUC applies; |
| C) | Any physical features to which an ELUC applies (e.g., engineered barriers, monitoring wells, caps); and |
| D) | The nature, location of the source, and direction of movement of the contaminants of concern; |
| 9) | A statement that any information regarding the remediation performed on the property for which the ELUC is necessary may be obtained from the Agency through a request under the Freedom of Information Act [5 ILCS 140] and rules promulgated thereunder; and |
| 10) | The dated, notarized signatures of the property owners or authorized agent. | |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Section 742.1012 | |
| Federally Owned Property: Land Use Control Memoranda of Agreement |
| a) | A Land Use Control Memorandum of Agreement (LUC MOA) between one or more agencies of the federal government and the Illinois Environmental Protection Agency is the institutional control that shall be used under this Part to impose land use limitations or restrictions related to environmental contamination on Federally Owned Property. A LUC MOA may be used only for Federally Owned Property. Each LUC MOA, at a minimum, must require that the Federal Landholding Entities responsible for the Federally Owned Property do the following: |
| 1) | Provide adequate identification of the location on the Federally Owned Property of each site with land use limitations or requirements. Such identification shall be by means of common address, notations in any available facility master land use plan, site specific GIS or GPS coordinates, plat maps, or any other means which identifies the site in question with particularity; | |
| 2) | Implement periodic site inspection procedures to ensure adequate oversight by the Federal Landholding Entities of such land use limitation or requirement; | |
| 3) | Implement procedures for the Federal Landholding Entities to periodically advise the Agency of continued compliance with the maintenance of the land use control and site inspection requirements included in the LUC MOA; | |
| 4) | Implement procedures for the Federal Landholding Entities to notify the Agency of any planned or emergency changes in land use that may adversely impact any site with land use limitations or requirements; and | |
| 5) | Notify the Agency at least 60 days in advance of a conveyance by deed or fee simple title, by the Federal Landholding Entities, of a site with land use limitations or requirements, to any entity that will not remain or become a Federal Landholding Entity, and provide the Agency with information about how the Federal Landholding Entities will ensure that the requirements of Section 742.1010 are to be satisfied upon conveyance of that site. | |
| a) | Any LUC MOA entered into pursuant to this Section remains effective only so long as title to the affected property is retained by the United States. | |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| a) | An ordinance adopted by a unit of local government that effectively prohibits the installation of potable water supply wells (and the use of such wells) may be used as an institutional control to meet the requirements of Section 742.320(d) or 742.805(a)(3) if the requirements of this Section are met. A model ordinance is found in Appendix G. Ordinances prohibiting the installation of potable water supply wells (and the use of such wells) that do not expressly prohibit the installation of potable water supply wells (and the use of such wells) by units of local government may be acceptable as institutional controls if the requirements of this Section are met and a Memorandum of Understanding (MOU) is entered into under subsection (i) of this Section. For purposes of this Section, a unit of local government is considered to be expressly prohibited from installing and using potable water supply wells only if the unit of local government is included in the prohibition provision by name. The prohibition required by this Section shall satisfy the following requirements at a minimum: | |
| 1) The prohibition shall not allow exceptions for potable water well installation and use other than for the adopting unit of local government; | |
| 2) The prohibition shall apply at all depths and shall not be limited to particular aquifers or other geologic formations; | |
| 3) If the prohibition does not apply everywhere within the boundaries of the unit of local government, the limited area to which the prohibition applies shall be easily identifiable and clearly defined by the ordinance (e.g., narrative descriptions accompanied by maps with legends or labels showing prohibition boundaries or narrative descriptions using fixed, common reference points such as street names). Boundaries of prohibitions limited by area shall be fixed by the terms of the ordinance and shall not be subject to change without amending the ordinance in which the prohibition has been adopted (e.g., no boundaries defined with reference to zoning districts or the availability of the public water supply); and | |
| 4) The prohibition shall not in any way restrict or limit the Agency’s approval of the use of the ordinance as an institutional control pursuant to this Part (e.g., no restrictions based on remediation program participation or no restrictions on persons performing remediation within the prohibition area who may use the ordinance). | |
| b) | A request for approval of a local ordinance as an institutional control shall provide the following: |
| 1) | A copy of the ordinance restricting groundwater use certified by an official of the unit of local government in which the site is located that it is a true and accurate copy of the ordinance, unless the Agency and the unit of local government have entered an agreement under subsection (i) of this Section, in which case the request may alternatively reference the MOU. The ordinance must demonstrate that potable use of groundwater from potable water supply wells is prohibited; |
| 2) | A scaled map(s) delineating the area and extent of groundwater contamination modeled above the applicable remediation objectives including any measured data showing concentrations of contaminants of concern in which the applicable remediation objectives are exceeded; |
| 3) | A scaled map delineating the boundaries of all properties under which groundwater is located which exceeds the applicable groundwater remediation objectives; |
| 4) | Information identifying the current owner(s) of each property identified in subsection (b)(3) of this Section; and |
| 5) | A copy of the proposed written notification to the unit of local government that adopted the ordinance and to the current owners identified in subsection (b)(4) of this Section that includes the following information: |
| A) | The name and address of the unit of local government that adopted the ordinance; |
| B) | The ordinance’s citation; |
| C) | A description of the property being sent notice by adequate legal description, reference to a plat showing the boundaries of the property, or accurate street address; |
| D) | Identification of the party requesting to use the groundwater ordinance as an institutional control, and a statement that the party has requested approval from the Agency to use the ordinance as an institutional control; |
| E) | A statement that use of the ordinance as an institutional control allows contamination above groundwater ingestion remediation objectives to remain in groundwater beneath the affected properties, and that the ordinance strictly prohibits human and domestic consumption of the groundwater; |
| F) | A statement as to the nature of the release and response action with the site name, site address, and Agency site number or Illinois inventory identification number; and |
| G) | A statement that more information about the remediation site may be obtained by contacting the party requesting the use of the groundwater ordinance as an institutional control or by submitting a FOIA request to the Agency. |
| c) | Written notification proposed pursuant to subsection (b)(5) of this Section must be sent to the unit of local government that adopted the ordinance, as well as to all current property owners identified in subsection (b)(4). Written proof that the notification was sent to the unit of local government and the property owners shall be submitted to the Agency within 45 days from the date the Agency’s no further remediation determination is recorded. Such proof may consist of the return card from certified mail, return receipt requested, a notarized certificate of service, or a notarized affidavit. |
| d) | Unless the Agency and the unit of local government have entered into a MOU under subsection (i) of this Section, the current owner or successors in interest of a site who have received approval of use of an ordinance as an institutional control under this Section shall: |
| 1) | Monitor activities of the unit of local government relative to variance requests or changes in the ordinance relative to the use of potable groundwater at properties identified in subsection (b)(3) of this Section; and |
| 2) | Notify the Agency of any approved variance requests or ordinance changes within 30 days after the date such action has been approved. |
| e) | The information required in subsections (b)(1) through (b)(5) of this Section and the Agency letter approving the groundwater remediation objective shall be submitted to the unit of local government. Proof that the information has been filed with the unit of local government shall be provided to the Agency. |
| f) | Any ordinance or MOU used as an institutional control pursuant to this Section shall be recorded in the Office of the Recorder or Registrar of Titles of the county in which the site is located together with the instrument memorializing the Agency's no further remediation determination pursuant to the specific program within 45 days after receipt of the Agency's no further remediation determination. |
| g) | An institutional control approved under this Section shall not become effective until officially recorded in accordance with subsection (f) of this Section. The person receiving the approval shall obtain and submit to the Agency within 30 days after recording a copy of the institutional control demonstrating that it has been recorded. |
| h) | The following shall be grounds for voidance of the ordinance as an institutional control and the instrument memorializing the Agency's no further remediation determination: |
| 1) | Modification of the ordinance by the unit of local government to allow potable use of groundwater; |
| 2) | Approval of a site-specific request, such as a variance, to allow potable use of groundwater at a site identified in subsection (b)(3) of this Section; |
| 3) | Violation of the terms of an institutional control recorded under Section 742.1005 or Section 742.1010; or |
| 4) | Failure to provide notification and proof of such notification pursuant to subsection (c) of this Section. |
| i) | The Agency and a unit of local government may enter into a MOU under this Section if the unit of local government has adopted an ordinance satisfying subsection (a) of this Section and if the requirements of this subsection are met. The MOU submitted to the Agency must match the form and contain the same substance as the model in Appendix H and shall include the following: |
| 1) | Identification of the authority of the unit of local government to enter the MOU; |
| 2) | Identification of the legal boundaries, or equivalent, under which the ordinance is applicable; |
| 3) | A certified copy of the ordinance; |
| 4) | A commitment by the unit of local government to notify the Agency of any variance requests or proposed ordinance changes at least 30 days prior to the date the local government is scheduled to take action on the request or proposed change; |
| 5) | A commitment by the unit of local government to maintain a registry of all sites within the unit of local government that have received no further remediation determinations pursuant to specific programs; and |
| 6) | If the ordinance does not expressly prohibit the installation of potable water supply wells (and the use of such wells) by units of local government, a commitment by the unit of local government: |
| A) | To review the registry of sites established under subsection (i)(5) of this Section prior to siting potable water supply wells within the area covered by the ordinance; |
| B) | To determine whether the potential source of potable water may be or has been affected by contamination left in place at those sites; and |
| C) | To take whatever steps are necessary to ensure that the potential source of potable water is protected from the contamination or treated before it is used as a potable water supply. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Section 742.1020 | |
| Highway Authority Agreements and Highway Authority Agreement Memoranda of Agreement |
| a) | An agreement with a highway authority may be used as an institutional control where the requirements of this Section are met and the Agency has determined that no further remediation is required as to the property(ies) to which the agreement is to apply. Highway Authority Agreements submitted to the Agency, except for those agreements with the Illinois Department of Transportation, must match the form and contain the same substance, except for variable elements, as the model in Appendix D. |
| b) | As part of the agreement the highway authority shall agree to: |
| 1) | Prohibit the use of groundwater under the highway right of way that is contaminated above residential Tier 1 remediation objectives from the release as a potable supply of water; and |
| 2) | Limit access to soil contamination under the highway right of way that is contaminated above residential Tier 1 or construction worker remediation objectives, whichever is less, from the release. Access to soil contamination may be allowed if, during and after any access, public health and the environment are protected. |
| c) | The agreement shall provide the following: |
| 1) | Fully executed signature blocks by the highway authority and the owner of the property (or, in the case of a petroleum leaking underground storage tank, the owner or operator of the tank) from which the release occurred; |
| 2) | A scaled map delineating the area and extent of soil and groundwater contamination above the applicable Tier 1 remediation objectives or a statement that either soil or groundwater is not contaminated above the applicable Tier 1 residential remediation objectives; |
| 3) | Information showing the concentration of contaminants of concern within the zone in which the applicable Tier 1 remediation objectives are exceeded; |
| 4) | A stipulation of the information required by subsections (c)(2) and (3) of this Section in the agreement if it is not practical to obtain the information by sampling the highway right-of-way; and |
| 5) | Information identifying the highway authority having jurisdiction. | |
| d) | Highway Authority Agreements must be referenced in the instrument that is to be recorded on the chain of title for the remediation property. |
| e) | Violation of the terms of an Agreement approved by the Agency as an institutional control under this Section shall be grounds for voidance of the Agreement as an institutional control and the instrument memorializing the Agency's no further remediation determination. | ||
| f) | Failure to provide all of the information required in subsections (b) and (c) of this Section will be grounds for denial of the Highway Authority Agreement as an institutional control. |
| g) | In instances in which the highway authority is also the property owner of the site, a Highway Authority Agreement may not be used. In such cases, the highway authority shall instead enter into a Highway Authority Agreement Memorandum of Agreement (HAA MOA) between the highway authority and the Agency. An HAA MOA may be used as an institutional control where the requirements of this Section are met and the Agency has determined that no further remediation is required as to the property(ies) to which the agreement is to apply. HAA MOAs submitted to the Agency must match the form and contain the same substance, except for variable elements, as the model in Appendix E. |
h) As part of the HAA MOA the highway authority shall agree to:
| 1) | Prohibit the use of groundwater under the highway right of way that is contaminated above residential Tier 1 or construction worker remediation objectives, whichever are less, from the release as a potable supply of water; and |
| 2) | Limit access to soil contamination under the highway right of way that is contaminated above residential Tier 1 or construction worker remediation objectives, whichever are less, from the release. Access to soil contamination may be allowed if, during and after any access, public health and the environment are protected. |
| i) | The HAA MOA shall provide the following: |
| 1) | Information identifying the site by common address or legal description or both; |
| 2) | The Illinois Emergency Management Agency’s (IEMA) incident number for the site, if one has been assigned; |
| 3) | A scaled map delineating the current and estimated future area and extent of soil and groundwater contamination above the applicable Tier 1 or construction worker remediation objectives, whichever are less, or a statement that either soil or groundwater is not contaminated above the applicable Tier 1 residential remediation objectives; |
| 4) | Information prepared by the highway authority that lists each contaminant of concern that exceeds its Tier 1 residential or construction worker remediation objective, its Tier 1 residential remediation objective, and its concentrations within the zone where Tier 1 residential or construction worker remediation objectives, whichever is less, are exceeded; |
| 5) | A scaled map prepared by the highway authority showing the area of the highway authority’s right of way that is governed by the HAA MOA; |
| 6) | If samples have not been collected within the right of way because of impracticability, a stipulation by the parties that, based on modeling, soil and groundwater contamination exceeding Tier 1 residential or construction worker remediation objectives, whichever is less, does not and will not extend beyond the boundaries of the right-of-way; |
| 7) | A stipulation by the highway authority that it has jurisdiction over the right of way that gives it sole control over the use of the groundwater and access to the soil located within or beneath the right of way; |
| 8) | A stipulation by the highway authority that it agrees to limit access by itself and others to soil within the right of way exceeding Tier 1 residential or construction worker remediation objectives, whichever is less. Access may only be allowed if human health (including worker safety) and the environment are protected during and after any access. The highway authority may construct, reconstruct, improve, repair, maintain, and operate a highway upon the right of way, or allow others to do the same by permit. The highway authority and others using or working in the right of way under permit have the right to remove soil or groundwater from the right of way and dispose of the same in accordance with applicable environmental laws and regulations. The highway authority agrees to issue all permits for work in the right of way, and make all existing permits for work in the right of way, subject to the following or substantially similar conditions: |
| A) | As a condition of this permit the permittee shall request the office issuing this permit to identify sites in the right of way where a HAA MOA governs access to soil that exceeds the Tier 1 residential remediation objectives of 35 Ill. Adm. Code 742; and |
| B) | The permittee shall take all measures necessary to protect human health (including worker safety) and the environment during and after any access to such soil; | |
| 9) | A stipulation that the HAA MOA shall be referenced in the Agency’s no further remediation determination issued for the release(s); |
| 10) | A stipulation that the highway authority shall notify the Agency of any transfer of jurisdiction over the right of way at least 30 days prior to the date the transfer takes effect. The HAA MOA shall be null and void upon the transfer unless the transferee agrees to be bound by the agreement as if the transferee were an original party to the agreement. The transferee’s agreement to be bound by the terms of the agreement shall be memorialized at the time of transfer as a rider to this agreement that references the HAA MOA and is signed by the highway authority, or subsequent transferor, and the transferee; |
| 11) | A stipulation that the HAA MOA will become effective on the date the Agency issues a no further remediation determination for the release(s). It shall remain effective until the right of way is demonstrated to be suitable for unrestricted use and the Agency issues a new no further remediation determination to reflect there is no longer a need for the HAA MOA, or until the agreement is otherwise terminated or voided; |
| 12) | A stipulation that in addition to any other remedies that may be available, the Agency may bring suit to enforce the terms of the HAA MOA or may, at its sole discretion, declare the HAA MOA null and void if the highway authority or a transferee violates any term of the HAA MOA. The highway authority or transferee shall be notified in writing of any such declaration; and |
| 13) | A fully executed signature block by the highway authority and a block for the Agency’s Director. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| a) | Any person who develops remediation objectives under this Part based on engineered barriers shall meet the requirements of this Subpart and the requirements of Subpart J relative to institutional controls. |
| b) | The Agency shall not approve any remediation objective under this Part that is based on the use of engineered barriers unless the person has proposed engineered barriers meeting the requirements of this Subpart. |
| c) | The use of engineered barriers can be recognized in calculating remediation objectives only if the engineered barriers are intended for use as part of the final corrective action. |
| d) | Any no further remediation determination based upon the use of engineered barriers shall require effective maintenance of the engineered barrier. The maintenance requirements shall be included in an institutional control under Subpart J. This institutional control shall address provisions for temporary breaches of the barrier by requiring the following if intrusive construction work is to be performed in which the engineered barrier is to be temporarily breached: |
| 1) | The construction workers shall be notified by the site owner/operator in advance of intrusive activities. Such notification shall enumerate the contaminant of concern known to be present; and |
| 2) | The site owner/operator shall require construction workers to implement protective measures consistent with good industrial hygiene practice. |
| e) | Failure to maintain an engineered barrier in accordance with that no further remediation determination shall be grounds for voidance of the determination and the instrument memorializing the Agency's no further remediation determination. |
| a) | Natural attenuation, access controls, and point of use treatment shall not be considered engineered barriers. Engineered barriers may not be used to prevent direct human exposure to groundwater without the use of institutional controls. |
| b) | For purposes of determining remediation objectives under Tier 1, engineered barriers are not recognized. |
| c) | The following engineered barriers are recognized for purposes of calculating remediation objectives that exceed residential remediation objectives: |
| 1) | For the soil component of the groundwater ingestion exposure route, the following engineered barriers are recognized if they prevent completion of the exposure pathway: |
| A) | Caps or walls constructed of compacted clay, asphalt, concrete or other material approved by the Agency; and |
| B) | Permanent structures such as buildings and highways. |
| 2) | For the soil ingestion exposure route, the following engineered barriers are recognized if they prevent completion of the exposure pathway: |
| A) | Caps or walls constructed of compacted clay, asphalt, concrete, or other material approved by the Agency; |
| B) | Permanent structures such as buildings and highways; and |
| C) | Soil, sand, gravel, or other geologic materials that: |
| i) | Cover the contaminated media; |
| ii) | Meet the soil remediation objectives under Subpart E for residential property for contaminants of concern; and |
iii) Are a minimum of three feet in depth.
| 3) | For the inhalation exposure route, the following engineered barriers are recognized if they prevent completion of the exposure pathway: |
| A) | Caps or walls constructed of compacted clay, asphalt, concrete, or other material approved by the Agency; |
| B) | Permanent structures such as buildings and highways; and |
| C) | Soil, sand, gravel, or other geologic materials that: |
| i) | Cover the contaminated media; |
| ii) | Meet the soil remediation objectives under Subpart E for residential property for contaminants of concern; and |
| iii) | Are a minimum of ten feet in depth and not within ten feet of any manmade pathway. |
| 4) | For the ingestion of groundwater exposure route, the following engineered barriers are recognized if they prevent completion of the exposure pathway: |
| A) | Slurry walls; and |
| B) | Hydraulic control of groundwater. |
| d) | Unless otherwise prohibited under Section 742.1100, any other type of engineered barrier may be proposed if it will be as effective as the options listed in subsection (c) of this Section. |
(Source: Amended at 25 Ill. Reg. 10374, effective August 15, 2001)
Section 742.APPENDIX A: General
| CAS No. | Chemical Name | Csat (mg/kg)
|
| 67-64-1 | Acetone | 100,000
|
| 71-43-2 | Benzene | 870
|
| 111-44-4 | Bis(2-chloroethyl)ether | 3,300
|
| 117-81-7 | Bis(2-ethylhexyl)phthalate | 31,000
|
| 75-27-4 | Bromodichloromethane (Dichlorobromomethane) | 3,000
|
| 75-25-2 | Bromoform | 1,900
|
| 71-36-3 | Butanol | 10,000
|
| 85-68-7 | Butyl benzyl phthalate | 930
|
| 75-15-0 | Carbon disulfide | 720
|
| 56-23-5 | Carbon tetrachloride | 1,100
|
| 108-90-7 | Chlorobenzene (Monochlorobenzene) | 680
|
| 124-48-1 | Chlorodibromomethane (Dibromochloromethane) | 1,300
|
| 67-66-3 | Chloroform | 2,900
|
| 96-12-8 | 1,2-Dibromo-3-chloropropane | 1,400
|
| 106-93-4 | 1,2-Dibromoethane (Ethylene dibromide) | 2,800
|
| 84-74-2 | Di-n-butyl phthalate | 2,300
|
| 95-50-1 | 1,2-Dichlorobenzene (o-Dichlorobenzene) | 560
|
| 75-34-3 | 1,1-Dichloroethane | 1,700
|
| 107-06-2 | 1,2-Dichloroethane (Ethylene dichloride) | 1,800
|
| 75-35-4 | 1,1-Dichloroethylene | 1,500
|
| 156-59-2 | cis-1,2-Dichloroethylene | 1,200
|
| 156-60-5 | trans-1,2-Dichloroethylene | 3,100
|
| 78-87-5 | 1,2-Dichloropropane | 1,100
|
| 542-75-6 | 1,3-Dichloropropene (1,3-Dichloropropylene, cis + trans) | 1,400
|
| 84-66-2 | Diethyl phthalate | 2,000
|
| 117-84-0 | Di-n-octyl phthalate | 10,000
|
| 100-41-4 | Ethylbenzene | 400
|
| 77-47-4 | Hexachlorocyclopentadiene | 2,200
|
| 78-59-1 | Isophorone | 4,600
|
| 74-83-9 | Methyl bromide (Bromomethane) | 3,200
|
| 1634-04-4 | Methyl tertiary-butyl ether | 8,800
|
| 75-09-2 | Methylene chloride (Dichloromethane) | 2,400
|
| 98-95-3 | Nitrobenzene | 1,000
|
| 100-42-5 | Styrene | 1,500
|
| 127-18-4 | Tetrachloroethylene (Perchloroethylene) | 240
|
| 108-88-3 | Toluene | 650
|
| 120-82-1 | 1,2,4-Trichlorobenzene | 3,200
|
| 71-55-6 | 1,1,1-Trichloroethane | 1,200
|
| 79-00-5 | 1,1,2-Trichloroethane | 1,800
|
| 79-01-6 | Trichloroethylene | 1,300
|
| 108-05-4 | Vinyl acetate | 2,700
|
| 75-01-4 | Vinyl chloride | 1,200
|
| 108-38-3 | m-Xylene | 420
|
| 95-47-6 | o-Xylene | 410
|
| 106-42-3 | p-Xylene | 460
|
| 1330-20-7 | Xylenes (total) | 320
|
| Ionizable Organics | ||
| 95-57-8 | 2-Chlorophenol | 53,000
|
n
|
K
|
|
3
|
7.655
|
|
4
|
5.145
|
|
5
|
4.202
|
|
6
|
3.707
|
|
7
|
3.399
|
|
8
|
3.188
|
|
9
|
3.031
|
|
10
|
2.911
|
|
11
|
2.815
|
|
12
|
2.736
|
|
13
|
2.670
|
|
14
|
2.614
|
|
15
|
2.566
|
|
16
|
2.523
|
|
17
|
2.486
|
|
18
|
2.543
|
|
19
|
2.423
|
|
20
|
2.396
|
|
21
|
2.371
|
|
22
|
2.350
|
|
23
|
2.329
|
|
24
|
2.309
|
|
25
|
2.292
|
|
30
|
2.220
|
|
35
|
2.166
|
|
40
|
2.126
|
|
45
|
2.092
|
|
50
|
2.065
|
|
55
|
2.036
|
|
60
|
2.017
|
|
65
|
2.000
|
|
70
|
1.986
|
|
75
|
1.972
|
|
100
|
1.924
|
|
125
|
1.891
|
|
150
|
1.868
|
|
175
|
1.850
|
|
200
|
1.836
|
|
225
|
1.824
|
|
250
|
1.814
|
|
275
|
1.806
|
|
300
|
1.799
|
|
325
|
1.792
|
|
350
|
1.787
|
|
375
|
1.782
|
|
400
|
1.777
|
|
425
|
1.773
|
|
450
|
1.769
|
|
n
|
K
|
|
475
|
1.766
|
|
500
|
1.763
|
|
525
|
1.760
|
|
550
|
1.757
|
|
575
|
1.754
|
|
600
|
1.752
|
|
625
|
1.750
|
|
650
|
1.748
|
|
675
|
1.746
|
|
700
|
1.744
|
|
725
|
1.742
|
|
750
|
1.740
|
|
775
|
1.739
|
|
800
|
1.737
|
|
825
|
1.736
|
|
850
|
1.734
|
|
875
|
1.733
|
|
900
|
1.732
|
|
925
|
1.731
|
|
950
|
1.729
|
|
975
|
1.728
|
|
1000
|
1.727
|
| i/n | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 1 | 0.7071 | 0.7071 | 0.6872 | 0.6646 | 0.6431 | 0.6233 | 0.6052 | 0.5888 | 0.5739 |
| 2 | --- | .0000 | .1677 | .2413 | .2806 | .3031 | .3164 | .3244 | .3291 |
| 3 | --- | --- | --- | .0000 | .0875 | .1401 | .1743 | .1976 | .2141 |
| 4 | --- | --- | --- | --- | --- | .0000 | .0561 | .0947 | .1224 |
| 5 | --- | --- | --- | --- | --- | --- | --- | .0000 | .0399 |
| i/n | 11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
| 1 | 0.5601 | 0.5475 | 0.5359 | 0.5251 | 0.5150 | 0.5056 | 0.4968 | 0.4886 | 0.4808 | 0.4734 |
| 2 | .3315 | .3325 | .3325 | .3318 | .3306 | .3290 | .3273 | .3253 | .3232 | .3211 |
| 3 | .2260 | .2347 | .2412 | .2460 | .2495 | .2521 | .2540 | .2553 | .2561 | .2565 |
| 4 | .1429 | .1586 | .1707 | .1802 | .1878 | .1939 | .1988 | .2027 | .2059 | .2085 |
| 5 | .0695 | .0922 | .1099 | .1240 | .1353 | .1447 | .1524 | .1587 | .1641 | .1686 |
| 6 | 0.0000 | 0.0303 | 0.0539 | 0.0727 | 0.0880 | 0.1005 | 0.1109 | 0.1197 | 0.1271 | 0.1334 |
| 7 | --- | --- | .0000 | .0240 | .0433 | .0593 | .0725 | .0837 | .0932 | .1013 |
| 8 | --- | --- | --- | --- | .0000 | .0196 | .0359 | .0496 | .0612 | .0711 |
| 9 | --- | --- | --- | --- | --- | --- | .0000 | .0163 | .0303 | .0422 |
| 10 | --- | --- | --- | --- | --- | --- | --- | --- | .0000 | .0140 |
| i/n | 21
|
22
|
23
|
24
|
25
|
26
|
27
|
28
|
29
|
30
|
| 1 | 0.4643 | 0.4590 | 0.4542 | 0.4493 | 0.4450 | 0.4407 | 0.4366 | 0.4328 | 0.4291 | 0.4254 |
| 2 | .3185 | .3156 | .3126 | .3098 | .3069 | .3043 | .3018 | .2992 | .2968 | .2944 |
| 3 | .2578 | .2571 | .2563 | .2554 | .2543 | .2533 | .2522 | .2510 | .2499 | .2487 |
| 4 | .2119 | .2131 | .2139 | .2145 | .2148 | .2151 | .2152 | .2151 | .2150 | .2148 |
| 5 | .1736 | .1764 | .1787 | .1807 | .1822 | .1836 | .1848 | .1857 | .1864 | .1870 |
| 6 | 0.1399 | 0.1443 | 0.1480 | 0.1512 | 0.1539 | 0.1563 | 0.1584 | 0.1601 | 0.1616 | 0.1630 |
| 7 | .1092 | .1150 | .1201 | .1245 | .1283 | .1316 | .1346 | .1372 | .1395 | .1415 |
| 8 | .0804 | .0878 | .0941 | .0997 | .1046 | .1089 | .1128 | .1162 | .1192 | .1219 |
| 9 | .0530 | .0618 | .0696 | .0764 | .0823 | .0876 | .0923 | .0965 | .1002 | .1036 |
| 10 | .0263 | .0368 | .0459 | .0539 | .0610 | .0672 | .0728 | .0778 | .0822 | .0862 |
| 11 | 0.0000 | 0.0122 | 0.0228 | 0.0321 | 0.0403 | 0.0476 | 0.0540 | 0.0598 | 0.0650 | 0.0697 |
| 12 | --- | --- | .0000 | .0107 | .0200 | .0284 | .0358 | .0424 | .0483 | .0537 |
| 13 | --- | --- | --- | --- | .0000 | .0094 | .0178 | .0253 | .0320 | .0381 |
| 14 | --- | --- | --- | --- | --- | --- | .0000 | .0084 | .0159 | .0227 |
| 15 | --- | --- | --- | --- | --- | --- | --- | --- | .0000 | .0076 |
| i/n | 31
|
32
|
33
|
34
|
35
|
36
|
37
|
38
|
39
|
40
|
| 1 | 0.4220 | 0.4188 | 0.4156 | 0.4127 | 0.4096 | 0.4068 | 0.4040 | 0.4015 | 0.3989 | 0.3964 |
| 2 | .2921 | .2898 | .2876 | .2854 | .2834 | .2813 | .2794 | .2774 | .2755 | .2737 |
| 3 | .2475 | .2463 | .2451 | .2439 | .2427 | .2415 | .2403 | .2391 | .2380 | .2368 |
| 4 | .2145 | .2141 | .2137 | .2132 | .2127 | .2121 | .2116 | .2110 | .2104 | .2098 |
| 5 | .1874 | .1878 | .1880 | .1882 | .1883 | .1883 | .1883 | .1881 | .1880 | .1878 |
| i/n | 31
|
32
|
33
|
34
|
35
|
36
|
37
|
38
|
39
|
40
|
| 6 | 0.1641 | 0.1651 | 0.1660 | 0.1667 | 0.1673 | 0.1678 | 0.1683 | 0.1686 | 0.1689 | 0.1691 |
| 7 | .1433 | .1449 | .1463 | .1475 | .1487 | .1496 | .1503 | .1513 | .1520 | .1526 |
| 8 | .1243 | .1265 | .1284 | .1301 | .1317 | .1331 | .1344 | .1356 | .1366 | .1376 |
| 9 | .1066 | .1093 | .1118 | .1140 | .1160 | .1179 | .1196 | .1211 | .1225 | .1237 |
| 10 | .0899 | .0931 | .0961 | .0988 | .1013 | .1036 | .1056 | .1075 | .1092 | .1108 |
| 11 | 0.0739 | 0.0777 | 0.0812 | 0.0844 | 0.0873 | 0.0900 | 0.0924 | 0.0947 | 0.0967 | 0.0986 |
| 12 | .0585 | .0629 | .0669 | .0706 | .0739 | .0770 | .0798 | .0824 | .0848 | .0870 |
| 13 | .0435 | .0485 | .0530 | .0572 | .0610 | .0645 | .0677 | .0706 | .0733 | .0759 |
| 14 | .0289 | .0344 | .0395 | .0441 | .0484 | .0523 | .0559 | .0592 | .0622 | .0651 |
| 15 | .0144 | .0206 | .0262 | .0314 | .0361 | .0404 | .0444 | .0481 | .0515 | .0546 |
| 16 | 0.0000 | 0.0068 | 0.0131 | 0.0187 | 0.0239 | 0.0287 | 0.0331 | 0.0372 | 0.0409 | 0.0444 |
| 17 | --- | --- | .0000 | .0062 | .0119 | .0172 | .0220 | .0264 | .0305 | .0343 |
| 18 | --- | --- | --- | --- | .0000 | .0057 | .0110 | .0158 | .0203 | .0244 |
| 19 | --- | --- | --- | --- | --- | --- | .0000 | .0053 | .0101 | .0146 |
| 20 | --- | --- | --- | --- | --- | --- | --- | --- | .0000 | .0049 |
| i/n | 41
|
42
|
43
|
44
|
45
|
46
|
47
|
48
|
49
|
50
|
| 1 | 0.3940 | 0.3917 | 0.3894 | 0.3872 | 0.3850 | 0.3830 | 0.3808 | 0.3789 | 0.3770 | 0.3751 |
| 2 | .2719 | .2701 | .2684 | .2667 | .2651 | .2635 | .2620 | .2604 | .2589 | .2574 |
| 3 | .2357 | .2345 | .2334 | .2323 | .2313 | .2302 | .2291 | .2281 | .2271 | .2260 |
| 4 | .2091 | .2085 | .2078 | .2072 | .2065 | .2058 | .2052 | .2045 | .2038 | .2032 |
| 5 | .1876 | .1874 | .1871 | .1868 | .1865 | .1862 | .1859 | .1855 | .1851 | .1847 |
| i/n | 41
|
42
|
43
|
44
|
45
|
46
|
47
|
48
|
49
|
50
|
| 6 | 0.1693 | 0.1694 | 0.1695 | 0.1695 | 0.1695 | 0.1695 | 0.1695 | 0.1693 | 0.1692 | 0.1691 |
| 7 | .1531 | .1535 | .1539 | .1542 | .1545 | .1548 | .1550 | .1551 | .1553 | .1554 |
| 8 | .1384 | .1392 | .1398 | .1405 | .1410 | .1415 | .1420 | .1423` | .1427 | .1430 |
| 9 | .1249 | .1259 | .1269 | .1278 | .1286 | .1293 | .1300 | .1306 | .1312 | .1317 |
| 10 | .1123 | .1136 | .1149 | .1160 | .1170 | .1180 | .1189 | .1197 | .1205 | .1212 |
| 11 | 0.1004 | 0.1020 | 0.1035 | 0.1049 | 0.1062 | 0.1073 | 0.1085 | 0.1095 | 0.1105 | 0.1113 |
| 12 | .0891 | .0909 | .0927 | .0943 | .0959 | .0972 | .0986 | .0998 | .1010 | .1020 |
| 13 | .0782 | .0804 | .0824 | .0842 | .0860 | .0876 | .0892 | .0906 | .0919 | .0932 |
| 14 | .0677 | .0701 | .0724 | .0745 | .0775 | .0785 | .0801 | .0817 | .0832 | .0846 |
| 15 | .0575 | .0602 | .0628 | .0651 | .0673 | .0694 | .0713 | .0731 | .0748 | .0764 |
| 16 | 0.0476 | 0.0506 | 0.0534 | 0.0560 | 0.0584 | 0.0607 | 0.0628 | 0.0648 | 0.0667 | 0.0685 |
| 17 | .0379 | .0411 | .0442 | .0471 | .0497 | .0522 | .0546 | .0568 | .0588 | .0608 |
| 18 | .0283 | .0318 | .0352 | .0383 | .0412 | .0439 | .0465 | .0489 | .0511 | .0532 |
| 19 | .0188 | .0227 | .0263 | .0296 | .0328 | .0357 | .0385 | .0411 | .0436 | .0459 |
| 20 | .0094 | .0136 | .0175 | .0211 | .0245 | .0277 | .0307 | .0335 | .0361 | .0386 |
| 21 | 0.0000 | 0.0045 | 0.0087 | 0.0126 | 0.0163 | 0.0197 | 0.0229 | 0.0259 | 0.0288 | 0.0314 |
| 22 | --- | --- | .0000 | .0042 | .0081 | .0118 | .0153 | .0185 | .0215 | .0244 |
| 23 | --- | --- | --- | --- | .0000 | .0039 | .0076 | .0111 | .0143 | .0174 |
| 24 | --- | --- | --- | --- | --- | --- | .0000 | .0037 | .0071 | .0104 |
| 25 | --- | --- | --- | --- | --- | --- | --- | --- | .0000 | .0035 |
N
|
0.01
|
0.05
|
| 3 | 0.753 | 0.767 |
| 4 | 0.687 | 0.748 |
| 5 | 0.686 | 0.762 |
| 6 | 0.713 | 0.788 |
| 7 | 0.730 | 0.803 |
| 8 | 0.749 | 0.818 |
| 9 | 0.764 | 0.829 |
| 10 | 0.781 | 0.842 |
| 11 | 0.792 | 0.850 |
| 12 | 0.805 | 0.859 |
| 13 | 0.814 | 0.866 |
| 14 | 0.825 | 0.874 |
| 15 | 0.835 | 0.881 |
| 16 | 0.844 | 0.887 |
| 17 | 0.851 | 0.892 |
| 18 | 0.858 | 0.897 |
| 19 | 0.863 | 0.901 |
| 20 | 0.868 | 0.905 |
| 21 | 0.873 | 0.908 |
| 22 | 0.878 | 0.911 |
| 23 | 0.881 | 0.914 |
| 24 | 0.884 | 0.916 |
| 25 | 0.888 | 0.918 |
| 26 | 0.891 | 0.920 |
| 27 | 0.894 | 0.923 |
| 28 | 0.896 | 0.924 |
| 29 | 0.898 | 0.926 |
| 30 | 0.900 | 0.927 |
| 31 | 0.902 | 0.929 |
| 32 | 0.904 | 0.930 |
| 33 | 0.906 | 0.931 |
| 34 | 0.908 | 0.933 |
| 35 | 0.910 | 0.934 |
Section 742.TABLE E Similar-Acting Noncarcinogenic Chemicals
| Adrenal Gland | Central Nervous System |
| Nitrobenzene | Butanol (Ingestion only) |
| 1,2,4-Trichlorobenzene (Ingestion only) | Cyanide (amenable) |
| 2,4-Dimethylphenol | |
| Kidney | Endrin |
| Acetone (Ingestion only) | Manganese |
| Cadmium (Ingestion only) | 2-Methylphenol |
| Chlorobenzene | Mercury (Inhalation only) |
| Dalapon | Styrene (Inhalation only) |
| 1,1-Dichloroethane | Toluene (Inhalation only) |
| Di-n-octyl phthalate (Ingestion only) | Xylenes (Ingestion only) |
| Endosulfan | |
| Ethylbenzene | Circulatory System |
| Fluoranthene | Antimony |
| Methyl tertiary-butyl ether (Inhalation only) | Barium (Ingestion only) |
| Nitrobenzene | 2,4-D |
| Pyrene | cis-1,2-Dichloroethylene (Ingestion only) |
| Toluene (Ingestion only) | Nitrobenzene |
| 2,4,5-Trichlorophenol | trans-1,2-Dichloroethylene (Ingestion only) |
| Vinyl acetate (Ingestion only) | 2,4-Dimethylphenol |
| Fluoranthene | |
| Liver | Fluorene |
| Acenaphthene | Styrene (Ingestion only) |
| Acetone (Ingestion only) | Zinc |
| Butylbenzyl phthalate (Ingestion only) | |
| Chlorobenzene (Ingestion only) | Gastrointestinal System |
| 1,1-Dichloroethylene (Ingestion only) | Beryllium (Ingestion only) |
| Di-n-octyl phthalate (Ingestion only) | Endothall |
| Endrin | Hexachlorocyclopentadiene (Ingestion only) |
| Ethylbenzene | Methyl bromide (Ingestion only) |
| Fluoranthene | Methyl tertiary -butyl ether (Ingestion only) |
| Methyl tertiary-butyl ether (Inhalation only) | |
| Nitrobenzene | |
| Picloram | |
| Styrene (Ingestion only) | |
| 2,4,5-TP (Silvex) | |
| Toluene (Ingestion only) | |
| 1,2,4-Trichlorobenzene (Inhalation only) | |
| 2,4,5-Trichlorophenol | |
| Immune System
2,4-Dichlorophenol p-Chloroaniline Mercury (Ingestion only) |
|
| Reproductive System
Barium (Inhalation only) Boron (Ingestion only) Carbon disulfide 2-Chlorophenol (Ingestion only) 1,2 Dibromo-3-Chloropropane (Inhalation only) Dinoseb Ethylbenzene (Inhalation only) Methoxychlor Phenol |
|
| Respiratory System
1,2-Dichloropropane (Inhalation only) 1,3-Dichloropropylene (Inhalation only) Hexachlorocyclopentadiene (Inhalation only) Methyl bromide (Inhalation only) Naphthalene (Inhalation only) Toluene (Inhalation only) Vinyl acetate (Inhalation only) |
|
| Cholinesterase Inhibition
Aldicarb Carbofuran |
|
| Decreased Body Weight Gains
and Circulatory System Effects Atrazine Simazine |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| 1,2-Dichloropropane (Ingestion only) | ||||
Section 742.TABLE G Concentrations of Inorganic Chemicals in Background Soils
| Chemical Name | Counties Within
Metropolitan Statistical Areas (mg/kg) |
Counties Outside
Metropolitan Statistical Areas (mg/kg) |
| Aluminum | 9,500
|
9,200
|
| Antimony | 4.0
|
3.3
|
| Arsenic | 13.0
|
11.3
|
| Barium | 110`
|
122
|
| Beryllium | 0.59
|
0.56
|
| Cadmium | 0.6
|
0.50
|
| Calcium | 9,300
|
5,525
|
| Chromium | 16.2
|
13.0
|
| Cobalt | 8.9
|
8.9
|
| Copper | 19.6
|
12.0
|
| Cyanide | 0.51
|
0.50
|
| Iron | 15,900
|
15,000
|
| Lead | 36.0
|
20.9
|
| Magnesium | 4,820
|
2,700
|
| Manganese | 636
|
630
|
| Mercury | 0.06
|
0.05
|
| Nickel | 18.0
|
13.0
|
| Potassium | 1,268
|
1,100
|
| Selenium | 0.48
|
0.37
|
| Silver | 0.55
|
0.50
|
| Sodium | 130
|
130.0
|
| Sulfate | 85.5
|
110
|
| Sulfide | 3.1
|
2.9
|
| Thallium | 0.32
|
0.42
|
| Vanadium | 25.2
|
25.0
|
| Zinc | 95.0
|
60.2
|
| BOARD NOTE: Counties within Metropolitan Statistical Areas: Boone, Champaign, Clinton, Cook, DuPage, Grundy, Henry, Jersey, Kane, Kankakee, Kendall, Lake, Macon, Madison, McHenry, McLean, Menard, Monroe, Peoria, Rock Island, Sangamon, St. Clair, Tazewell, Will, Winnebago and Woodford. |
Section 742.APPENDIX A: General
Section 742.TABLE H Concentrations of Polynuclear Aromatic Hydrocarbon Chemicals in Background Soils
| Chemical Name | Chicagoa
mg/kg |
Metropolitan Areasb
(mg/kg) |
Non-Metropolitan
Areasc (mg/kg) |
| 2-Methylnaphthalene | -----
|
0.14
|
0.29
|
| Acenaphthene | 0.09
|
0.13
|
0.04
|
| Acenaphthylene | 0.03
|
0.07
|
0.04
|
| Anthracene | 0.25
|
0.40
|
0.14
|
| Benzo(a)anthracene | 1.1
|
1.8
|
0.72
|
| Benzo(a)pyrene | 1.3
|
2.1
|
0.98
|
| Benzo(b)fluoranthene | 1.5
|
2.1
|
0.70
|
| Benzo(g,h,i)perylene | 0.68
|
1.7
|
0.84
|
| Benzo(k)fluoranthene | 0.99
|
1.7
|
0.63
|
| Chrysene | 1.2
|
2.7
|
1.1
|
| Dibenzo(a,h)anthracene | 0.20
|
0.42
|
0.15
|
| Fluoranthene | 2.7
|
4.1
|
1.8
|
| Fluorene | 0.10
|
0.18
|
0.04
|
| Indeno(1,2,3-c,d)pyrene | 0.86
|
1.6
|
0.51
|
| Naphthalene | 0.04
|
0.20
|
0.17
|
| Phenanthrene | 1.3
|
2.5
|
0.99
|
| Pyrene | 1.9
|
3.0
|
1.2
|
| a Chicago means within the corporate limits of the City of Chicago.
b Metropolitan area means a populated area, as defined in Section 742.200, (other than the City of Chicago) that is located within any county in a Metropolitan Statistical Area listed in Appendix A, Table G, footnote a. c Non-Metropolitan area means a populated area, as defined in Section 742.200, that is not located within any county in a Metropolitan Statistical Area listed in Appendix A, Table G, footnote a. |
|
Chemical |
Class I Groundwater
Remediation Objective (mg/L) |
1 in 1,000,000 Cancer
Risk Concentration (mg/L) |
ADL (mg/L) |
| Aldrin | 0.014 | 0.000005 | 0.014 |
| Benzo(a)pyrene | 0.0002 | 0.000012 | 0.00023 |
| Bis(2-chloroethyl)ether | 0.01 | 0.000077 | 0.01 |
| Bis(2-ethylhexyl)phthalate (Di(2-ethylhexyl)phthalate) | 0.006 | 0.0061 | 0.0027 |
| Carbon Tetrachloride | 0.005 | 0.00066 | 0.0001 |
| Chlordane | 0.002 | 0.000066 | 0.00014 |
| DDD | 0.014 | 0.00023 | 0.014 |
| DDE | 0.01 | 0.00023 | 0.01 |
| DDT | 0.006 | 0.00023 | 0.006 |
| Dibenzo(a,h)anthracene | 0.0003 | 0.000012 | 0.0003 |
| 1,2-Dibromo-3-chloropropane | 0.0002 | 0.000061 | 0.001 |
| 1,2-Dibromoethane | 0.00005 | 0.00002 | 0.001 |
| 3,3'-Dichlorobenzidine | 0.02 | 0.00019 | 0.02 |
| 1,2-Dichloroethane | 0.005 | 0.00094 | 0.0003 |
| Dieldrin | 0.009 | 0.0000053 | 0.009 |
| 2,6-Dinitrotoluene | 0.00031 | 0.0001 | 0.00031 |
| Heptachlor | 0.0004 | 0.000019 | 0.013 |
| Heptachlor epoxide | 0.0002 | 0.0000094 | 0.015 |
| Hexachlorobenzene | 0.00006 | 0.000053 | 0.00006 |
| Alpha-HCH | 0.00011 | 0.000014 | 0.000111 |
| Tetrachloroethylene | 0.005 | 0.0016 | 0.0004 |
| Toxaphene | 0.003 | 0.000077 | 0.00086 |
| Vinyl chloride | 0.002 | 0.000045 | 0.0002 |
| Ionizable Organics | |||
| N-Nitrosodi-n-propylamine | 0.0018 | 0.000012 | 0.0018 |
| Pentachlorophenol | 0.001 | 0.00071 | 0.000076 |
| 2,4,6-Trichlorophenol | 0.01 | 0.007 | 0.01 |
| Inorganics | |||
| Arsenic | 0.05 | 0.000057 | 0.001 |
| (Source: Appendix A, Table I renumbered from Appendix A, Table H and amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Section 742.APPENDIX B Tier 1 Illustrations and Tables
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 83-32-9 | Acenaphthene | 4,700b
|
---c
|
570b
|
2,900
|
*
|
| 67-64-1 | Acetone | 70,000
b
|
100,000d
|
25
b
|
25
|
*
|
| 15972-60-8 | Alachloro | 8e
|
---c
|
0.04
|
0.2
|
NA
|
| 116-06-3 | Aldicarbo | 78b
|
---c
|
0.013
|
0.07
|
NA
|
| 309-00-2 | Aldrin | 0.04e
|
3e
|
0.5e
|
2.5
|
0.94
|
| 120-12-7 | Anthracene | 23,000b
|
---c
|
12,000b
|
59,000
|
*
|
| 1912-24-9 | Atrazineo | 2700b
|
---c
|
0.066
|
0.33
|
NA
|
| 71-43-2 | Benzene | 12e
|
0.8e
|
0.03
|
0.17
|
*
|
| 56-55-3 | Benzo(a)anthracene | 0.9e,w
|
---c
|
2
|
8
|
*
|
| 205-99-2 | Benzo(b)fluoranthene | 0.9e,w
|
---c
|
5
|
25
|
*
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 207-08-9 | Benzo(k)fluroanthene | 9e
|
---c
|
49
|
250
|
*
|
| 50-32-8 | Benzo(a)pyrene | 0.09e, w
|
---c
|
8
|
82
|
*
|
| 111-44-4 | Bis(2-chloroethyl)ether | 0.6e
|
0.2e,
|
0.0004e,
|
0.0004
|
0.66
|
| 117-81-7 | Bis(2-ethylhexyl)phthalate | 46e
|
31,000d
|
3,600
|
31,000d
|
*
|
| 75-27-4 | Bromodichloromethane
(Dichlorobromomethane) |
10e
|
3,000d
|
0.6
|
0.6
|
*
|
| 75-25-2 | Bromoform | 81e
|
53e
|
0.8
|
0.8
|
*
|
| 71-36-3 | Butanol | 7,800b
|
10,000d
|
17b
|
17
|
NA
|
| 85-68-7 | Butyl benzyl phthalate | 16,000b
|
930d
|
930d
|
930d
|
*
|
| 86-74-8 | Carbazole | 32e
|
---c
|
0.6e
|
2.8
|
NA
|
| 1563-66-2 | Carbofurano | 390b
|
---c
|
0.22
|
1.1
|
NA
|
| 75-15-0 | Carbon disulfide | 7,800b
|
720d, x
|
32b
|
160
|
*
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 56-23-5 | Carbon tetrachloride | 5e
|
0.3e
|
0.07
|
0.33
|
*
|
| 57-74-9 | Chlordane | 1.8 e
|
72e, x
|
10
|
48
|
*
|
| 106-47-8 | 4-Chloroaniline
(p-Chloroaniline) |
310b
|
---c
|
0.7b
|
0.7
|
*
|
| 108-90-7 | Chlorobenzene
(Monochlorobenzene) |
1,600b
|
130b, x
|
1
|
6.5
|
*
|
| 124-48-1 | Chlorodibromomethane
(Dibromochloromethane) |
1,600b
|
1,300d
|
0.4
|
0.4
|
*
|
| 67-66-3 | Chloroform | 100e
|
0.3e
|
0.6
|
2.9
|
*
|
| 218-01-9 | Chrysene | 88e
|
---c
|
160
|
800
|
*
|
| 94-75-7 | 2,4-Do | 780b
|
---c
|
1.5
|
7.7
|
*
|
| 75-99-0 | Dalapono | 2,300b
|
---c
|
0.85
|
8.5
|
*
|
| 72-54-8 | DDD | 3e
|
---c
|
16e
|
80
|
*
|
| 72-55-9 | DDE | 2e
|
---c
|
54e
|
270
|
*
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 50-29-3 | DDT | 2e
|
---g, x
|
32e
|
160
|
*
|
| 53-70-3 | Dibenzo(a,h)anthracene | 0.09e, w
|
---c
|
2
|
7.6
|
*
|
| 96-12-8 | 1,2-Dibromo-3-chloropropane | 0.46e
|
11b, x
|
0.002
|
0.02
|
*
|
| 106-93-4 | 1,2-Dibromoethane
(Ethylene dibromide) |
0.32
e
|
0.06
e
|
0.0004
|
0.004
|
0.005
|
| 84-74-2 | Di-n-butyl phthalate | 7,800b
|
2,300d
|
2,300d
|
2,300d
|
*
|
| 95-50-1 | 1,2-Dichlorobenzene
(o – Dichlorobenzene) |
7,000b
|
560d, x
|
17
|
43
|
*
|
| 106-46-7 | 1,4-Dichlorobenzene
(p – Dichlorobenzene) |
---c
|
11,000b, x
|
2
|
11
|
*
|
| 91-94-1 | 3,3'-Dichlorobenzidine | 1e
|
---c
|
0.007e,
|
0.033
|
1.3
|
| 75-34-3 | 1,1-Dichloroethane | 7,800b
|
1,300b, x
|
23b
|
110
|
*
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 107-06-2 | 1,2-Dichloroethane
(Ethylene dichloride) |
7e
|
0.4e
|
0.02
|
0.1
|
*
|
| 75-35-4 | 1,1-Dichloroethylene | 3,900b
|
290b, x
|
0.06
|
0.3
|
*
|
| 156-59-2 | cis-1,2-Dichloroethylene | 780b
|
1,200d
|
0.4
|
1.1
|
*
|
| 156-60-5 | trans-1,2-Dichloroethylene | 1,600b
|
3,100d
|
0.7
|
3.4
|
*
|
| 78-87-5 | 1,2-Dichloropropane | 9e
|
15b, x
|
0.03
|
0.15
|
*
|
| 542-75-6 | 1,3-Dichloropropene
(1,3-Dichloropropylene, cis + trans) |
6.4e
|
1.1e, x
|
0.004e
|
0.02
|
0.005
|
| 60-57-1 | Dieldrinn | 0.04e
|
1e
|
0.004e
|
0.02
|
0.603
|
| 84-66-2 | Diethyl phthalate | 63,000b
|
2,000d
|
470b
|
470
|
*
|
| 105-67-9 | 2,4-Dimethylphenol | 1,600b
|
---c
|
9b
|
9
|
*
|
| 121-14-2 | 2,4-Dinitrotoluene | 0.9e
|
---c
|
0.0008e,
|
0.0008
|
0.250
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 606-20-2 | 2,6-Dinitrotoluene | 0.9e
|
---c
|
0.0007e
|
0.0007
|
0.260
|
| 117-84-0 | Di-n-octyl phthalate | 1,600b
|
10,000d
|
10,000d
|
10,000d
|
*
|
| 115-29-7 | Endosulfano | 470b
|
---c
|
18b
|
90
|
*
|
| 145-73-3 | Endothallo | 1,600b
|
---c
|
0.4
|
0.4
|
NA
|
| 72-20-8 | Endrin | 23b
|
---c
|
1
|
5
|
*
|
| 100-41-4 | Ethylbenzene | 7,800b
|
400d, x
|
13
|
19
|
*
|
| 206-44-0 | Fluoranthene | 3,100b
|
---c
|
4,300b
|
21,000
|
*
|
| 86-73-7 | Fluorene | 3,100b
|
---c
|
560b
|
2,800
|
*
|
| 76-44-8 | Heptachlor | 0.1e
|
0.1e
|
23
|
110
|
0.871
|
| 1024-57-3 | Heptachlor epoxide | 0.07e
|
5e
|
0.7
|
3.3
|
1.005
|
| 118-74-1 | Hexachlorobenzene | 0.4e
|
1e
|
2
|
11
|
*
|
| 319-84-6 | Alpha-HCH (alpha-BHC) | 0.1e
|
0.8e
|
0.0005e,
|
0.003
|
0.0074
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 58-89-9 | Gamma-HCH (Lindane)n | 0.5e
|
---c, x
|
0.009
|
0.047
|
*
|
| 77-47-4 | Hexachlorocyclopentadiene | 550b
|
10b, x
|
400
|
2,200d
|
*
|
| 67-72-1 | Hexachloroethane | 78b
|
---c
|
0.5b
|
2.6
|
*
|
| 193-39-5 | Indeno(1,2,3-c,d)pyrene | 0.9e,w
|
---c
|
14
|
69
|
*
|
| 78-59-1 | Isophorone | 15,600b
|
4,600d
|
8b
|
8
|
*
|
| 72-43-5 | Methoxychloro | 390b
|
---c
|
160
|
780
|
*
|
| 74-83-9 | Methyl bromide
(Bromomethane) |
110b
|
10b, x
|
0.2b
|
1.2
|
*
|
| 1634-04-4 | Methyl tertiary-butyl ether | 780b
|
8,800d, x
|
0.32
|
0.32
|
*
|
| 75-09-2 | Methylene chloride
(Dichloromethane) |
85e
|
13e
|
0.02e
|
0.2
|
*
|
| 95-48-7 | 2-Methylphenol
(o – Cresol) |
3,900b
|
---c
|
15b
|
15
|
*
|
| 91-20-3 | Naphthalene | 1,600 b
|
170b, x
|
12 b
|
18
|
*
|
| 98-95-3 | Nitrobenzene | 39b
|
92b, x
|
0.1b,
|
0.1
|
0.26
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 86-30-6 | N-Nitrosodiphenylamine | 130e
|
---c
|
1e
|
5.6
|
*
|
| 621-64-7 | N-Nitrosodi-n-propylamine | 0.09e,
|
---c
|
0.00005e,
|
0.00005
|
0.0018
|
| 108-95-2 | Phenol | 23,000b
|
---c
|
100b
|
100
|
*
|
| 1918-02-1 | Picloramo | 5,500b
|
---c
|
2
|
20
|
NA
|
| 1336-36-3 | Polychlorinated biphenyls (PCBs)n | 1h
|
---c,h
|
---h
|
---h
|
*
|
| 129-00-0 | Pyrene | 2,300b
|
---c
|
4,200b
|
21,000
|
*
|
| 122-34-9 | Simazineo | 390b
|
---c
|
0.04
|
0.37
|
NA
|
| 100-42-5 | Styrene | 16,000b
|
1,500d, x
|
4
|
18
|
*
|
| 127-18-4 | Tetrachloroethylene
(Perchloroethylene) |
12e
|
11e
|
0.06
|
0.3
|
*
|
| 108-88-3 | Toluene | 16,000b
|
650d, x
|
12
|
29
|
*
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 8001-35-2 | Toxaphenen | 0.6e
|
89e
|
31
|
150
|
*
|
| 120-82-1 | 1,2,4-Trichlorobenzene | 780b
|
3,200b, x
|
5
|
53
|
*
|
| 71-55-6 | 1,1,1-Trichloroethane | ---c
|
1,200d
|
2
|
9.6
|
*
|
| 79-00-5 | 1,1,2-Trichloroethane | 310b
|
1,800d
|
0.02
|
0.3
|
*
|
| 79-01-6 | Trichloroethylene | 58e
|
5e
|
0.06
|
0.3
|
*
|
| 108-05-4 | Vinyl acetate | 78,000b
|
1,000b, x
|
170b
|
170
|
*
|
| 75-01-4 | Vinyl chloride | 0.46e
|
0.28e
|
0.01
|
0.07
|
*
|
| 108-38-3 | m-Xylene | 16,000
b
|
420d, x
|
210
|
210
|
*
|
| 95-47-6 | o-Xylene | 16,000
b
|
410d, x
|
190
|
190
|
*
|
| 106-42-3 | p-Xylene | 16,000
b
|
460d, x
|
200
|
200
|
*
|
Exposure Route-Specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
Class II
(mg/kg) |
ADL
(mg/kg) |
| 1330-20-7 | Xylenes (total) | 16,000
b
|
320d, x
|
150
|
150
|
*
|
| Ionizable Organics | ||||||
| 65-85-0 | Benzoic Acid | 310,000b
|
---c
|
400b,i
|
400i
|
*
|
| 95-57-8 | 2-Chlorophenol | 390b
|
53,000d
|
4b,i
|
4i
|
*
|
| 120-83-2 | 2,4-Dichlorophenol | 230b
|
---c
|
1b,i
|
1i
|
*
|
| 51-28-5 | 2,4-Dinitrophenol | 160b
|
---c
|
0.2b,
|
0.2
|
3.3
|
| 88-85-7 | Dinosebo | 78b
|
---c
|
0.34b,i
|
3.4i
|
*
|
| 87-86-5 | Pentachlorophenol | 3e,j
|
---c
|
0.03i
|
0.14i
|
*
|
| 93-72-1 | 2,4,5-TP
(Silvex) |
630b
|
---c
|
11i
|
55i
|
*
|
| 95-95-4 | 2,4,5-Trichlorophenol | 7,800b
|
---c
|
270b,i
|
1,400i
|
*
|
| 88-06-2 | 2,4,6 Trichlorophenol | 58e
|
200e
|
0.2e, i
|
0.77i
|
0.66
|
Exposure Route-specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/L) |
Class II
(mg/L) |
ADL
(mg/kg) |
| Inorganics | ||||||
| 7440-36-0 | Antimony | 31b
|
---c
|
0.006m
|
0.024m
|
*
|
| 7440-38-2 | Arsenicl,n | ---t
|
750e
|
0.05m
|
0.2m
|
*
|
| 7440-39-3 | Barium | 5,500b
|
690,000b
|
2.0m
|
2.0m
|
*
|
| 7440-41-7 | Beryllium | 160b
|
1,300e
|
0.004m
|
0.5m
|
*
|
| 7440-42-8 | Boron | 16,000
b
|
---c
|
2.0m
|
2.0m
|
*
|
| 7440-43-9 | Cadmiuml,n | 78b, r
|
1,800e
|
0.005m
|
0.05m
|
*
|
| 7440-70-2 | Calciumn | ---g
|
---c
|
---c
|
---c
|
*
|
| 16887-00-6 | Chloride | ---c
|
---c
|
200m
|
200m
|
*
|
| 7440-47-3 | Chromium, total | 230 b
|
270e
|
0.1m
|
1.0m
|
*
|
| 16065-83-1 | Chromium, ion, trivalent | 120,000 b
|
---c
|
---g
|
---g
|
*
|
| 18540-29-9 | Chromium, ion, hexavalent | 230 b
|
270e
|
---
|
---
|
*
|
Exposure Route-specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/L) |
Class II
(mg/L) |
ADL
(mg/kg) |
| 7440-48-4 | Cobalt | 4,700b
|
---c
|
1.0m
|
1.0m
|
*
|
| 7440-50-8 | Coppern | 2,900b
|
---c
|
0.65m
|
0.65m
|
*
|
| 57-12-5 | Cyanide (amenable) | 1,600b
|
---c
|
0.2q,m
|
0.6q,m
|
*
|
| 7782-41-4 | Fluoride | 4,700b
|
---c
|
4.0m
|
4.0m
|
*
|
| 15438-31-0 | Iron | ---c
|
---c
|
5.0m
|
5.0m
|
*
|
| 7439-92-1 | Lead | 400k
|
---c
|
0.0075m
|
0.1m
|
*
|
| 7439-95-4 | Magnesiumn | 325,000
|
---c
|
---c
|
---c
|
*
|
| 7439-96-5 | Manganese | 1,600 b,v
|
69,000b, x
|
0.15m
|
10.0m
|
*
|
| 7439-97-6 | Mercuryl,n,s | 23b
|
10b, x
|
0.002m
|
0.01m
|
*
|
| 7440-02-0 | Nickell | 1,600b
|
13,000e
|
0.1m
|
2.0m
|
*
|
| 14797-55-8 | Nitrate as Np | 130,000b
|
---c
|
10.0q, m
|
100q
|
*
|
| 7723-14-0 | Phosphorusn | ---g
|
---c
|
---c
|
---c
|
*
|
Exposure Route-specific Values for Soils
|
Soil Component of the Groundwater Ingestion Exposure Route
Values |
| CAS No. | Chemical Name | Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/L) |
Class II
(mg/L) |
ADL
(mg/kg) |
| 7440-09-7 | Potassiumn | ---g
|
---c
|
---c
|
---c
|
*
|
| 7782-49-2 | Seleniuml,n | 390b
|
---c
|
0.05m
|
0.05m
|
*
|
| 7440-22-4 | Silver | 390b
|
---c
|
0.05m
|
---c
|
*
|
| 7440-23-5 | Sodiumn | ---g
|
---c
|
---c
|
---c
|
*
|
| 14808-79-8 | Sulfate | ---c
|
---c
|
400m
|
400m
|
*
|
| 7440-28-0 | Thallium | 6.3b,u
|
---c
|
0.002m
|
0.02m
|
*
|
| 7440-62-2 | Vanadium | 550b
|
---c
|
0.049m
|
0.1m
|
*
|
| 7440-66-6 | Zincl | 23,000b
|
---c
|
5.0m
|
10m
|
*
|
| “*” indicates that the ADL is less than or equal to the specified remediation objective. |
| a | Soil remediation objectives based on human health criteria only. |
| b | Calculated values correspond to a target hazard quotient of 1. |
| c | No toxicity criteria available for the route of exposure. |
| d | Soil saturation concentration (C [sat]) = the concentration at which the absorptive limits of the soil particles, the solubility limits of the available soil moisture, and saturation of soil pore air have been reached. Above the soil saturation concentration, the assumptions regarding vapor transport to air and/or dissolved phase transport to groundwater (for chemicals which are liquid at ambient soil temperatures) have been violated, and alternative modeling approaches are required. |
| e | Calculated values correspond to a cancer risk level of 1 in 1,000,000. |
| g | Chemical-specific properties are such that this route is not of concern at any soil contaminant concentration. |
| h | 40 CFR 761 contains applicability requirements and methodologies for the development of PCB remediation objectives. Requests for approval of a Tier 3 evaluation must address the applicability of 40 CFR 761. |
| I | Soil remediation objective for pH of 6.8. If soil pH is other than 6.8, refer to Appendix B, Tables C and D of this Part. |
| j | Ingestion soil remediation objective adjusted by a factor of 0.5 to account for dermal route. |
| k | A preliminary remediation goal of 400 mg/kg has been set for lead based on Revised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities, OSWER Directive #9355.4-12. |
| l | Potential for soil-plant-human exposure. |
| m | |
| The person conducting the remediation has the option to use: 1) TCLP or SPLP test results to compare with the remediation objectives listed in this Table; 2) where applicable, the total amount of contaminant in the soil sample results to compare with pH specific remediation objectives listed in Appendix B, Table C or D of this Part (see Section 742.510); or 3) the appropriate background value listed in Appendix A, Table G. If the person conducting the remediation wishes to calculate soil remediation objectives based on background concentrations, this should be done in accordance with Subpart D of this Part. | |
| n | The Agency reserves the right to evaluate the potential for remaining contaminant concentrations to pose significant threats to crops, livestock, or wildlife. |
| o | For agrichemical facilities, remediation objectives for surficial soils which are based on field application rates may be more appropriate for currently registered pesticides. Consult the Agency for further information. |
| p | For agrichemical facilities, soil remediation objectives based on site-specific background concentrations of Nitrate as N may be more appropriate. Such determinations shall be conducted in accordance with the procedures set forth in Subparts D and I of this Part. |
| q | The TCLP extraction must be done using water at a pH of 7.0. |
| r | Value based on dietary Reference Dose. |
| s | Value for Ingestion based on Reference Dose for Mercuric chloride (CAS No. 7487-94-7); value for Inhalation based on Reference Concentration for elemental Mercury (CAS No. 7439-97-6). Inhalation remediation objective only applies at sites where elemental mercury is a contaminant of concern. |
| t | |||
| For the ingestion route for arsenic, see 742.Appendix A, Table G. |
| u | Value based on Reference Dose for Thallium sulfate (CAS No. 7446-18-6). |
| v | Value based on Reference Dose adjusted for dietary intake. |
| w | |
| For sites located in any populated area as defined in Section 742.200, Appendix A, Table H may be used. | |
| x | The remediation objectives for these chemicals must also include the construction worker inhalation objective in Appendix B, Table B. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 83-32-9 | Acenaphthene | 120,000b | -----c | 120,000b | -----c | 570b | 2,900 | *
|
| 67-64-1 | Acetone | ----g | 100,000d | ----g | 100,000d | 25 b | 25 | *
|
| 15972-60-8 | Alachloro | 72e | -----c | 1,600e | -----c | 0.04 | 0.2 | NA
|
| 116-06-3 | Aldicarbo | 2,000b | -----c | 200b | -----c | 0.013 | 0.07 | NA
|
| 309-00-2 | Aldrin | 0.3e | 6.6e | 6.1b | 9.3e | 0.5e | 2.5 | 0.94
|
| 120-12-7 | Anthracene | 610,000b | -----c | 610,000b | -----c | 12,000b | 59,000 | *
|
| 1912-24-9 | Atrazineo | 72,000b | -----c | 7,100b | -----c | 0.066 | 0.33 | NA
|
| 71-43-2 | Benzene | 100e | 1.6 e | 2,300e | 2.2 e | 0.03 | 0.17 | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 56-55-3 | Benzo(a)anthracene | 8e | -----c | 170e | -----c | 2 | 8 | *
|
| 205-99-2 | Benzo(b)fluoranthene | 8e | -----c | 170e | -----c | 5 | 25 | *
|
| 207-08-9 | Benzo(k)fluroanthene | 78e | -----c | 1,700e | -----c | 49 | 250 | *
|
| 50-32-8 | Benzo(a)pyrene | 0.8e,x | -----c | 17e | -----c | 8 | 82 | *
|
| 111-44-4 | Bis(2-chloroethyl)ether | 5e | 0.47e | 75e | 0.66e | 0.0004e, | 0.0004 | 0.66
|
| 117-81-7 | Bis(2-ethylhexyl)phthalate | 410e | 31,000d | 4,100b | 31,000d | 3,600 | 31,000d | *
|
| 75-27-4 | Bromodichloromethane
(Dichlorobromomethane) |
92e | 3,000d | 2,000e | 3,000d | 0.6 | 0.6 | *
|
| 75-25-2 | Bromoform | 720e | 100e | 16,000e | 140e | 0.8 | 0.8 | *
|
| 71-36-3 | Butanol | 200,000b | 10,000d | 200,000b | 10,000d | 17b | 17 | NA
|
| 85-68-7 | Butyl benzyl phthalate | 410,000b | 930d | 410,000b | 930d | 930d | 930d | *
|
| 86-74-8 | Carbazole | 290e | -----c | 6,200e | -----c | 0.6e | 2.8 | NA
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 1563-66-2 | Carbofurano | 10,000b | -----c | 1,000b | -----c | 0.22 | 1.1 | NA
|
| 75-15-0 | Carbon disulfide | 200,000b | 720d | 20,000b | 9.0b | 32b | 160 | *
|
| 56-23-5 | Carbon tetrachloride | 44e | 0.64e | 410b | 0.90e | 0.07 | 0.33 | *
|
| 57-74-9 | Chlordane | 16 e | 140 e | 100 b | 22b | 10 | 48 | *
|
| 106-47-8 | 4 – Chloroaniline
(p-Chloroaniline) |
8,200b | -----c | 820b | -----c | 0.7b | 0.7 | *
|
| 108-90-7 | Chlorobenzene
(Monochlorobenzene) |
41,000b | 210b | 4,100b | 1.3b | 1 | 6.5 | *
|
| 124-48-1 | Chlorodibromomethane
(Dibromochloromethane) |
41,000b | 1,300d | 41,000b | 1,300d | 0.4 | 0.4 | *
|
| 67-66-3 | Chloroform | 940e | 0.54e | 2,000b | 0.76e | 0.6 | 2.9 | *
|
| 218-01-9 | Chrysene | 780e | -----c | 17,000e | -----e | 160 | 800 | *
|
| 94-75-7 | 2,4-Do | 20,000b | -----c | 2,000b | -----c | 1.5 | 7.7 | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 75-99-0 | Dalapono | 61,000b | -----c | 6,100b | -----c | 0.85 | 8.5 | *
|
| 72-54-8 | DDD | 24e | -----c | 520e | -----c | 16e | 80 | *
|
| 72-55-9 | DDE | 17e | -----c | 370e | -----c | 54e | 270 | *
|
| 50-29-3 | DDT | 17e | 1,500e | 100b | 2,100e | 32e | 160 | *
|
| 53-70-3 | Dibenzo(a,h)anthracene | 0.8e | -----c | 17e | -----c | 2 | 7.6 | *
|
| 96-12-8 | 1,2-Dibromo-3-chloropropane | 4e | 17b | 89e | 0.11b | 0.002 | 0.02 | *
|
| 106-93-4 | 1,2-Dibromoethane
(Ethylene dibromide) |
2.9 e | 0.12 e | 62 e | 0.16 e | 0.0004 | 0.004 | 0.005
|
| 84-74-2 | Di-n-butyl phthalate | 200,000b | 2,300d | 200,000b | 2,300d | 2,300d | 2,300d | *
|
| 95-50-1 | 1,2-Dichlorobenzene
(o – Dichlorobenzene) |
180,000b | 560d | 18,000b | 310b | 17 | 43 | *
|
| 106-46-7 | 1,4-Dichlorobenzene
(p – Dichlorobenzene) |
-----c | 17,000b | -----c | 340b | 2 | 11 | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 91-94-1 | 3,3’-Dichlorobenzidine | 13e | -----c | 280e | -----c | 0.007e, | 0.033 | 1.3
|
| 75-34-3 | 1,1-Dichloroethane | 200,000b | 1,700d | 200,000b | 130b | 23b | 110 | *
|
| 107-06-2 | 1,2-Dichloroethane
(Ethylene dichloride) |
63e | 0.70e | 1,400e | 0.99e | 0.02 | 0.1 | *
|
| 75-35-4 | 1,1-Dichloroethylene | 100,000b | 470b | 10,000b | 3.0b | 0.06 | 0.3 | *
|
| 156-59-2 | cis-1,2-Dichloroethylene | 20,000b | 1,200d | 20,000b | 1,200d | 0.4 | 1.1 | *
|
| 156-60-5 | Trans-1,2-Dichloroethylene | 41,000b | 3,100d | 41,000b | 3,100d | 0.7 | 3.4 | *
|
| 78-87-5 | 1,2-Dichloropropane | 84e | 23b | 1,800e | 0.50b | 0.03 | 0.15 | *
|
| 542-75-6 | 1,3-Dichloropropene
(1,3-Dichloropropylene, cis + trans) |
57e | 2.1e | 1,200e | 0.39b | 0.004e | 0.02 | 0.005
|
| 60-57-1 | Dieldrinn | 0.4e | 2.2e | 7.8e | 3.1e | 0.004e | 0.02 | 0.603
|
| 84-66-2 | Diethyl phthalate | 1,000,000b | 2,000d | 1,000,000b | 2,000d | 470b | 470 | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 105-67-9 | 2,4-Dimethylphenol | 41,000b | -----c | 41,000b | -----c | 9b | 9 | *
|
| 121-14-2 | 2,4-Dinitrotoluene | 8.4e | -----c | 180e | -----c | 0.0008e, | 0.0008 | 0.250
|
| 606-20-2 | 2,6-Dinitrotoluene | 8.4e | -----c | 180e | -----c | 0.0007e, | 0.0007 | 0.260
|
| 117-84-0 | Di-n-octyl phthalate | 41,000e | 10,000d | 4,100b | 10,000d | 10,000d | 10,000d | *
|
| 115-29-7 | Endosulfano | 12,000b | -----c | 1,200b | -----c | 18b | 90 | *
|
| 145-73-3 | Endothallo | 41,000c | -----c | 4,100b | -----c | 0.4 | 0.4 | NA
|
| 72-20-8 | Endrin | 610b | -----c | 61b | -----c | 1 | 5 | *
|
| 100-41-4 | Ethylbenzene | 200,000b | 400d | 20,000b | 58b | 13 | 19 | *
|
| 206-44-0 | Fluoranthene | 82,000b | -----c | 82,000b | -----c | 4,300b | 21,000 | *
|
| 86-73-7 | Fluorene | 82,000b | -----c | 82,000b | -----c | 560b | 2,800 | *
|
| 76-44-8 | Heptachlor | 1e | 11e | 28e | 16e | 23 | 110 | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 1024-57-3 | Heptachlor epoxide | 0.6e | 9.2e | 2.7b | 13e | 0.7 | 3.3 | 1.005
|
| 118-74-1 | Hexachlorobenzene | 4e | 1.8e | 78e | 2.6e | 2 | 11 | *
|
| 319-84-6 | Alpha-HCH (alpha-BHC) | 0.9e | 1.5e | 20e | 2.1e | 0.0005e, | 0.003 | 0.0074
|
| 58-89-9 | Gamma-HCH (Lindane)n | 4e | -----c | 96e | -----c | 0.009 | 0.047 | *
|
| 77-47-4 | Hexachlorocyclopentadiene | 14,000b | 16b | 14,000b | 1.1b | 400 | 2,200d | *
|
| 67-72-1 | Hexachloroethane | 2,000b | -----c | 2,000b | -----c | 0.5b | 2.6 | *
|
| 193-39-5 | Indeno(1,2,3-c,d)pyrene | 8e | -----c | 170e | -----c | 14 | 69 | *
|
| 78-59-1 | Isophorone | 410,000b | 4,600d | 410,000b | 4,600d | 8b | 8 | *
|
| 72-43-5 | Methoxychloro | 10,000b | -----c | 1,000b | -----c | 160 | 780 | *
|
| 74-83-9 | Methyl bromide
(Bromomethane) |
2,900b | 15b | 1,000b | 3.9b | 0.2b | 1.2 | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 1634-04-4 | Methyl tertiary-butyl ether | 20,000b | 8,800d | 2,000b | 140b | 0.32 | 0.32 | *
|
| 75-09-2 | Methylene chloride
(Dichloromethane) |
760e | 24e | 12,000b | 34e | 0.02e | 0.2 | *
|
| 95-48-7 | 2-Methylphenol
(o – Cresol) |
100,000b | -----c | 100,000b | -----c | 15b | 15 | *
|
| 86-30-6 | N-Nitrosodiphenylamine | 1,200e | -----c | 25,000e | -----c | 1e | 5.6 | *
|
| 621-64-7 | N-Nitrosodi-n-propylamine | 0.8e | -----c | 18e | -----c | 0.00005e | 0.00005 | 0.0018
|
| 91-20-3 | Naphthalene | 41,000b | 270b | 4,100b | 1.8b | 12b | 18 | *
|
| 98-95-3 | Nitrobenzene | 1,000b | 140b | 1,000b | 9.4b | 0.1b | 0.1 | 0.26
|
| 108-95-2 | Phenol | 610,000b | -----c | 61,000b | -----c | 100b | 100 | *
|
| 1918-02-1 | Picloramo | 140,000b | -----c | 14,000b | -----c | 2 | 20 | NA
|
| 1336-36-3 | Polychlorinated biphenyls (PCBs)n | 1h | -----c,h | 1h | -----c,h | -----h | -----h | *
|
| 129-00-0 | Pyrene | 61,000b | -----c | 61,000b | -----c | 4,200b | 21,000 | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 122-34-9 | Simazineo | 10,000b | -----c | 1,000b | -----c | 0.04 | 0.37 | NA
|
| 100-42-5 | Styrene | 410,000b | 1,500d | 41,000b | 430b | 4 | 18 | *
|
| 127-18-4 | Tetrachloroethylene
(Perchloroethylene) |
110e | 20e | 2,400e | 28e | 0.06 | 0.3 | *
|
| 108-88-3 | Toluene | 410,000b | 650d | 410,000b | 42b | 12 | 29 | *
|
| 8001-35-2 | Toxaphenen | 5.2e | 170e | 110e | 240e | 31 | 150 | *
|
| 120-82-1 | 1,2,4-Trichlorobenzene | 20,000b | 3,200d | 2,000b | 920b | 5 | 53 | *
|
| 71-55-6 | 1,1,1-Trichloroethane | -----c | 1,200d | -----c | 1,200d | 2 | 9.6 | *
|
| 79-00-5 | 1,1,2-Trichloroethane | 8,200b | 1,800d | 8,200b | 1,800d | 0.02 | 0.3 | *
|
| 79-01-6 | Trichloroethylene | 520e | 8.9e | 1,200b | 12e | 0.06 | 0.3 | *
|
| 108-05-4 | Vinyl acetate | 1,000,000b | 1,600b | 200,000b | 10b | 170b | 170 | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 75-01-4 | Vinyl chloride | 7.9e | 1.1e | 170e | 1.1b | 0.01 | 0.07 | *
|
| 108-38-3 | m-Xylene | 410,000 b | 420d | 41,000 b | 6.4 b | 210 | 210 | *
|
| 95-47-6 | o-Xylene | 410,000 b | 410d | 41,000 b | 6.5 b | 190 | 190 | *
|
| 106-42-3 | p-Xylene | 410,000 b | 460d | 41,000 b | 5.9 b | 200 | 200 | *
|
| 1330-20-7 | Xylenes (total) | 410,000 b | 320d | 41,000 b | 5.6 b | 150 | 150 | *
|
| Ionizable Organics | ||||||||
| 65-85-0 | Benzoic Acid | 1,000,000b | -----c | 820,000b | -----c | 400b,i | 400i | *
|
| 95-57-8 | 2-Chlorophenol | 10,000b | 53,000d | 10,000b | 53,000d | 4b, i | 20i | *
|
| 120-83-2 | 2,4-Dichlorophenol | 6,100b | -----c | 610b | -----c | 1b, i | 1i | *
|
| 51-28-5 | 2,4-Dinitrophenol | 4,100b | -----c | 410b | -----c | 0.2b, i | 0.2i | 3.3
|
| 88-85-7 | Dinosebo | 2,000b | -----c | 200b | -----c | 0.34b, i | 3.4i | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/kg) |
ClassII
(mg/kg) |
ADL
(mg/kg) |
| 87-86-5 | Pentachlorophenol | 24e,j | -----c | 520e,j | -----c | 0.03 i | 0.14i | *
|
| 93-72-1 | 2,4,5-TP
(Silvex) |
16,000b | -----c | 1,600b | -----c | 11i | 55i | *
|
| 95-95-4 | 2,4,5-Trichlorophenol | 200,000b | -----c | 200,000b | -----c | 270b, i | 1,400i | *
|
| 88-06-2 | 2,4,6- Trichlorophenol | 520e | 390e | 11,000e | 540e | 0.2e, i | 0.77i | 0.66
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/L) |
Class II
(mg/L) |
ADL
(mg/kg) |
| Inorganics | ||||||||
| 7440-36-0 | Antimony | 820b | -----c | 82b | -----c | 0.006m | 0.024m | *
|
| 7440-38-2 | Arsenicl,n | ---t | 1,200e | 61b | 25,000e | 0.05m | 0.2m | *
|
| 7440-39-3 | Barium | 140,000b | 910,000b | 14,000b | 870,000b | 2.0m | 2.0m | *
|
| 7440-41-7 | Beryllium | 4,100b | 2,100e | 410b | 44,000e | 0.004m | 0.5m | *
|
| 7440-42-8 | Boron | 410,000 b | ---c | 41,000 b | ---c | 2.0m | 2.0m | *
|
| 7440-43-9 | Cadmiuml,n | 2,000b,r | 2,800e | 200b,r | 59,000e | 0.005m | 0.05m | *
|
| 7440-70-2 | Calciumn | ---g | ---c | ---g | ---c | ---c | ---c | *
|
| 16887-00-6 | Chloride | -------c | -----c | -----c | -----c | 200m | 200m | *
|
| 7440-47-3 | Chromium, total | 6,100 b | 420e | 4,100b | 690b | 0.1m | 1.0m | *
|
| 16065-83-1 | Chromium, ion, trivalent | 1,000,000b | -----c | 310,000b | -----c | -----g | -----g | *
|
| 18540-29-9 | Chromium, ion, hexavalent | 6,100b | 420e | 4,100b | 690b | ----- | ----- | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/L) |
Class II
(mg/L) |
ADL
(mg/kg) |
| 7440-48-4 | Cobalt | 120,000b | -----c | 12,000b | -----c | 1.0m | 1.0m | *
|
| 7440-50-8 | Coppern | 82,000b | -----c | 8,200b | -----c | 0.65m | 0.65m | *
|
| 57-12-5 | Cyanide (amenable) | 41,000b | -----c | 4,100b | -----c | 0.2q,m | 0.6q,m | *
|
| 7782-41-4 | Fluoride | 120,000b | -----c | 12,000b | -----c | 4.0m | 4.0m | *
|
| 15438-31-0 | Iron | -----c | -----c | -----c | -----c | 5.0m | 5.0m | *
|
| 7439-92-1 | Lead | 800y | -----c | 700y | -----c | 0.0075m | 0.1m | *
|
| 7439-95-4 | Magnesiumn | ---g | ---c | 730,000 | ---c | ---c | ---c | *
|
| 7439-96-5 | Manganese | 41,000 b,w | 91,000b | 4,100 b,w | 8,700b | 0.15m | 10.0m | *
|
| 7439-97-6 | Mercuryl,n,s | 610b | 16b | 61b | 0.1b | 0.002m | 0.01m | *
|
| 7440-02-0 | Nickell | 41,000b | 21,000e | 4,100b | 440,000e | 0.1m | 2.0m | *
|
| 14797-55-8 | Nitrate as Np | 1,000,000b | -----c | 330,000b | -----c | 10.0q, m | 100q | *
|
| 7723-14-0 | Phosphorusn | ---g | ---c | ---g | ---c | ---c | ---c | *
|
Exposure Route-Specific Values for Soils |
Soil Component of the Groundwater Ingestion Exposure Route
Values |
Industrial-
Commercial |
Construction
Worker |
CAS No.
|
Chemical
Name |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Ingestion
(mg/kg) |
Inhalation
(mg/kg) |
Class I
(mg/L) |
Class II
(mg/L) |
ADL
(mg/kg) |
| 7440-09-7 | Potassiumn | ---g | ---c | ---g | ---c | ---c | ---c | *
|
| 7782-49-2 | Seleniuml,n | 10,000b | -----c | 1,000b | -----c | 0.05m | 0.05m | *
|
| 7440-22-4 | Silver | 10,000b | -----c | 1,000b | -----c | 0.05m | ----- | *
|
| 7440-23-5 | Sodiumn | ---g | ---c | ---g | ---c | ---c | ---c | *
|
| 14808-79-8 | Sulfate | -----c | -----c | -----c | -----c | 400m | 400m | *
|
| 7440-28-0 | Thallium | 160b,u | -----c | 160b,u | -----c | 0.002m | 0.02m | *
|
| 7440-62-2 | Vanadium | 14,000b | -----c | 1,400b | -----c | 0.049m | 0.1m | *
|
| 7440-66-6 | Zincl | 610,000b | -----c | 61,000b | -----c | 5.0m | 10m | *
|
| a | oil remediation objectives based on human health criteria only. |
| b | Calculated values correspond to a target hazard quotient of 1. |
| c | No toxicity criteria available for this route of exposure. |
| d | Soil saturation concentration (C[sat]) = the concentration at which the absorptive limits of the soil particles, the solubility limits of the available soil moisture, and saturation of soil pore air have been reached. Above the soil saturation concentration, the assumptions regarding vapor transport to air and/or dissolved phase transport to groundwater (for chemicals which are liquid at ambient soil temperatures) have been violated, and alternative modeling approaches are required. |
| e | Calculated values correspond to a cancer risk level of 1 in 1,000,000. |
| g | Chemical-specific properties are such that this route is not of concern at any soil contaminant concentration. |
| h | 40 CFR 761 contains applicability requirements and methodologies for the development of PCB remediation objectives. Requests for approval of a Tier 3 evaluation must address the applicability of 40 CFR 761. |
| i | Soil remediation objective for pH of 6.8. If soil pH is other than 6.8, refer to Appendix B, Tables C and D in this Part. |
| j | Ingestion soil remediation objective adjusted by a factor of 0.5 to account for dermal route. |
| l | Potential for soil-plant-human exposure. |
| m | |
| The person conducting the remediation has the option to use: (1) TCLP or SPLP test results to compare with the remediation objectives listed in this Table; (2) the total amount of contaminant in the soil sample results to compare with pH specific remediation objectives listed in Appendix B, Table C or D of this Part (see Section 742.510); or (3) the appropriate background value listed in Appendix A, Table G. If the person conducting the remediation wishes to calculate soil remediation objectives based on background concentrations, this should be done in accordance with Subpart D of this Part. | |
| n | The Agency reserves the right to evaluate the potential for remaining contaminant concentrations to pose significant threats to crops, livestock, or wildlife. |
| o | For agrichemical facilities, remediation objectives for surficial soils which are based on field application rates may be more appropriate for currently registered pesticides. Consult the Agency for further information. |
| p | For agrichemical facilities, soil remediation objectives based on site-specific background concentrations of Nitrate as N may be more appropriate. Such determinations shall be conducted in accordance with the procedures set forth in Subparts D and I of this Part. |
| q | The TCLP extraction must be done using water at a pH of 7.0. |
| r | Value based on dietary Reference Dose. |
| s | Value for Ingestion based on Reference Dose for Mercuric chloride (CAS No. 7487-94-7); value for Inhalation based on Reference Concentration for elemental Mercury (CAS No. 7439-97-6). Inhalation remediation objective only applies at sites where elemental mercury is a contaminant of concern. |
| t | For the ingestion route for arsenic for industrial/commercial, see 742.Appendix A, Table G. |
| u | Value based on Reference Dose for Thallium sulfate (CAS No. 7446-18-6). |
| w | |
| Value based on Reference Dose adjusted for dietary intake. | |
| x | For any populated areas as defined in Section 742.200, Appendix A, Table H may be used. |
| y | Value based on maintaining fetal blood lead below 10 ug/d1, using the USEPA adults Blood Lead Model. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Chemical (totals)
(mg/kg) |
pH 4.5 to 4.74 | pH 4.75 to 5.24 | pH 5.25 to 5.74 | pH 5.75 to 6.24 | pH 6.25 to 6.64 | pH 6.65 to 6.89 | pH 6.9
to 7.24 |
pH 7.25
to 7.74 |
pH 7.75
to 8.24 |
pH 8.25
to 8.74 |
pH 8.75
to 9.0 |
| Inorganics |
| Antimony | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Arsenic | 25 | 26 | 27 | 28 | 29 | 29 | 29 | 30 | 31 | 32 | 33 |
| Barium | 260 | 490 | 850 | 1,200 | 1,500 | 1,600 | 1,700 | 1,800 | 2,100 | __a | __a |
| Beryllium | 1.1 | 2.1 | 3.4 | 6.6 | 22 | 63 | 140 | 1,000 | 8,000 | __a | __a |
| Cadmium | 1.0 | 1.7 | 2.7 | 3.7 | 5.2 | 7.5 | 11 | 59 | 430 | __a | __a |
| Chromium (+6) | 70 | 62 | 54 | 46 | 40 | 38 | 36 | 32 | 28 | 24 | 21 |
| Copper | 330 | 580 | 2,100 | 11,000 | 59,000 | 130,000 | 200,000 | 330,000 | 330,000 | __a | __a |
| Cyanide | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 |
| Lead | 23 | 23 | 23 | 23 | 107 | 107 | 107 | 107 | 107 | 107 | 282 |
| Mercury | 0.01 | 0.01` | 0.03 | 0.15 | 0.89 | 2.1 | 3.3 | 6.4 | 8.0 | __a | __a |
| Nickel | 20 | 36 | 56 | 76 | 100 | 130 | 180 | 700 | 3,800 | __a | __a |
| Selenium | 24 | 17 | 12 | 8.8 | 6.3 | 5.2 | 4.5 | 3.3 | 2.4 | 1.8 | 1.3 |
| Silver | 0.24 | 0.33 | 0.62 | 1.5 | 4.4 | 8.5 | 13 | 39 | 110 | __a | __a |
| Chemical (totals)
(mg/kg) |
pH 4.5 to 4.74 | pH 4.75 to 5.24 | pH 5.25 to 5.74 | pH 5.75 to 6.24 | pH 6.25 to 6.64 | pH 6.65 to 6.89 | pH 6.9
to 7.24 |
pH 7.25
to 7.74 |
pH 7.75
to 8.24 |
pH 8.25
to 8.74 |
pH 8.75
to 9.0 |
| Thallium | 1.6 | 1.8 | 2.0 | 2.4 | 2.6 | 2.8 | 3.0 | 3.4 | 3.8 | 4.4 | 4.9 |
| Vanadium | 980 | 980 | 980 | 980 | 980 | 980 | 980 | 980 | 980 | 980 | 980 |
| Zinc | 1,000 | 1,800 | 2,600 | 3,600 | 5,100 | 6,200 | 7,500 | 16,000 | 53,000 | __a | __a |
| Organics |
| Benzoic Acid | 440 | 420 | 410 | 400 | 400 | 400 | 400 | 400 | 400 | 400 | 400 |
| 2-Chlorophenol | 4.0 | 4.0 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.6 | 3.1 | 2.2 | 1.5 |
| 2,4-Dichlorophenol | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 0.86 | 0.69 | 0.56 | 0.48 |
| Dinoseb | 8.4 | 4.5 | 1.9 | 0.82 | 0.43 | 0.34 | 0.31 | 0.27 | 0.25 | 0.25 | 0.25 |
a No data available for this pH range.
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Chemical (totals)
(mg/kg) pH 4.5 to 4.74 pH 4.75 to 5.24 pH 5.25 to 5.74 pH 5.75 to 6.24 pH 6.25 to 6.64 pH 6.65 to 6.89 pH 6.9
to 7.24 pH 7.25
to 7.74 pH 7.75
to 8.24 pH 8.25
to 8.74 pH 8.75
to 9.0
Inorganics
Antimony 20 20 20 20 20 20 20 20 20 20 20
Arsenic 100 100 100 110 110 120 120 120 120 130 130
Barium 260 490 850 1,200 1,500 1,600 1,700 1,800 2,100 __a __a
Beryllium 140 260 420 820 2,800 7,900 17,000 130,000 1,000,000 __a __a
Cadmium 10 17 27 37 52 75 110 590 4,300 __a __a
Chromium (+6) No Data No Data No Data No Data No Data No Data No Data No Data No Data No Data No Data
Copper 330 580 2,100 11,000 59,000 130,000 200,000 330,000 330,000 __a __a
Cyanide 120 120 120 120 120 120 120 120 120 120 120
Lead 300 300 300 300 1,420 1,420 1,420 1,420 1,420 1,420 3,760
Mercury 0.05 0.06 0.14 0.75 4.4 10 16 32 40 __a __a
Nickel 400 730 1,100 1,500 2,000 2,600 3,500 14,000 76,000 __a __a
Selenium 24 17 12 8.8 6.3 5.2 4.5 3.3 2.4 1.8 1.3
| Thallium | 16 | 18 | 20 | 24 | 26 | 28 | 30 | 34 | 38 | 4449 |
Chemical (totals)
(mg/kg) pH 4.5 to 4.74 pH 4.75 to 5.24 pH 5.25 to 5.74 pH 5.75 to 6.24 pH 6.25 to 6.64 pH 6.65 to 6.89 pH 6.9
to 7.24 pH 7.25
to 7.74 pH 7.75
to 8.24 pH 8.25
to 8.74 pH 8.75
to 9.0
Organics
Benzoic Acid 440 420 410 400 400 400 400 400 400 400 400
2-Chlorophenol 20 20 20 20 20 20 19 3.6 3.1 2.2 1.5
2,4-Dichlorophenol 1.0 1.0 1.0 1.0 1.0 1.0 1.0 0.86 0.69 0.56 0.48
| Dinoseb | 84 | 45 | 19 | 8.2 | 4.3 | 3.4 | 3.1 | 2.7 | 2.5 | 2.52.5 |
a No data available for this pH range.
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Groundwater Remediation Objective
|
CAS No.
|
Chemical Name
Organics |
Class I
(mg/L) |
Class II
(mg/L) |
| 83-32-9 | Acenaphthene | 0.42 | 2.1 |
| 67-64-1 | Acetone | 6.3 | 6.3 |
| 15972-60-8 | Alachlor | 0.002c | 0.01c |
| 116-06-3 | Aldicarb | 0.003c | 0.015c |
| 309-00-2 | Aldrin | 0.014a | 0.07 |
| 120-12-7 | Anthracene | 2.1 | 10.5 |
| 1912-24-9 | Atrazine | 0.003c | 0.015c |
| 71-43-2 | Benzene | 0.005c | 0.025c |
| 56-55-3 | Benzo(a)anthracene | 0.00013a | 0.00065 |
| 205-99-2 | Benzo(b)fluoranthene | 0.00018a | 0.0009 |
| 207-08-9 | Benzo(k)fluroanthene | 0.00017a | 0.00085 |
| 50-32-8 | Benzo(a)pyrene | 0.0002a,c | 0.002c |
| 65-85-0 | Benzoic Acid | 28 | 28 |
| 111-44-4 | Bis(2-chloroethyl)ether | 0.01a | 0.01 |
| 117-81-7 | Bis(2-ethylhexyl)phthalate (Di(2-ethylhexyl)phthalate) | 0.006c | 0.06c |
| 75-27-4 | Bromodichloromethane
(Dichlorobromomethane) |
0.0002a | 0.0002 |
| 75-25-2 | Bromoform | 0.001a | 0.001 |
| 71-36-3 | Butanol | 0.7 | 0.7 |
| 85-68-7 | Butyl benzyl phthalate | 1.4 | 7.0 |
| 86-74-8 | Carbazole | --- | --- |
| 1563-66-2 | Carbofuran | 0.04c | 0.2c |
| 75-15-0 | Carbon disulfide | 0.7 | 3.5 |
| 56-23-5 | Carbon tetrachloride | 0.005c | 0.025c |
| 57-74-9 | Chlordane | 0.002c | 0.01c |
Groundwater Remediation Objective
|
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| 106-47-8 | 4-Chloroaniline ( r -Chloroaniline) | 0.028
|
0.028
|
| 108-90-7 | Chlorobenzene
(Monochlorobenzene) |
0.1c | 0.5c |
| 124-48-1 | Chlorodibromomethane
(Dibromochloromethane) |
0.14 | 0.14 |
| 67-66-3 | Chloroform | 0.0002a | 0.001 |
| 95-57-8 | 2-Chlorophenol (pH 4.9-7.3) | 0.035 | 0.175 |
| 2-Chlorophenol (pH 7.4-8.0) | 0.035 | 0.035 | |
| 218-01-9 | Chrysene | 0.0015a | 0.0075 |
| 94-75-7 | 2,4-D | 0.07c | 0.35c |
| 75-99-0 | Dalapon | 0.2c | 2.0c |
| 72-54-8 | DDD | 0.014a | 0.07 |
| 72-55-9 | DDE | 0.01a | 0.05 |
| 50-29-3 | DDT | 0.006a | 0.03 |
| 53-70-3 | Dibenzo(a,h)anthracene | 0.0003a | 0.0015 |
| 96-12-8 | 1,2-Dibromo-3-chloropropane | 0.0002c | 0.002 c |
| 106-93-4 | 1,2-Dibromoethane
(Ethylene dibromide) |
0.00005c | 0.0005c |
| 84-74-2 | Di-n-butyl phthalate | 0.7 | 3.5 |
| 95-50-1 | 1,2-Dichlorobenzene
(o – Dichlorobenzene) |
0.6c | 1.5c |
| 106-46-7 | 1,4-Dichlorobenzene
(p – Dichlorobenzene) |
0.075c | 0.375c |
| 91-94-1 | 3,3’-Dichlorobenzidine | 0.02a | 0.1 |
| 75-34-3 | 1,1-Dichloroethane | 0.7 | 3.5 |
| 107-06-2 | 1,2-Dichloroethane
(Ethylene dichloride) |
0.005c | 0.025c |
| 75-35-4 | 1,1-Dichloroethyleneb | 0.007c | 0.035c |
| 156-59-2 | cis-1,2-Dichloroethylene | 0.07c | 0.2c |
| 156-60-5 | trans-1,2-Dichloroethylene | 0.1c | 0.5c |
| 120-83-2 | 2,4-Dichlorophenol | 0.021 | 0.021 |
| 78-87-5 | 1,2-Dichloropropane | 0.005c | 0.025c |
| 542-75-6 | 1,3-Dichloropropene
(1,3-Dichloropropylene, cis + trans) |
0.001a | 0.005 |
Groundwater Remediation Objective
|
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| 60-57-1 | Dieldrin | 0.009a | 0.045 |
| 84-66-2 | Diethyl phthalate | 5.6 | 5.6 |
| 105-67-9 | 2,4-Dimethylphenol | 0.14 | 0.14 |
| 51-28-5 | 2,4-Dinitrophenol | 0.014 | 0.014 |
| 121-14-2 | 2,4-Dinitrotoluene | 0.00002a | 0.00002 |
| 606-20-2 | 2,6-Dinitrotoluene | 0.00031a | 0.00031 |
| 88-85-7 | Dinoseb | 0.007c | 0.07c |
| 117-84-0 | Di-n-octyl phthalate | 0.14 | 0.7 |
| 115-29-7 | Endosulfan | 0.042 | 0.21 |
| 145-73-3 | Endothall | 0.1c | 0.1c |
| 72-20-8 | Endrin | 0.002c | 0.01c |
| 100-41-4 | Ethylbenzene | 0.7c | 1.0c |
| 206-44-0 | Fluoranthene | 0.28 | 1.4 |
| 86-73-7 | Fluorene | 0.28 | 1.4 |
| 76-44-8 | Heptachlor | 0.0004c | 0.002c |
| 1024-57-3 | Heptachlor epoxide | 0.0002c | 0.001c |
| 118-74-1 | Hexachlorobenzene | 0.00006a | 0.0003 |
| 319-84-6 | alpha-HCH (alpha-BHC) | 0.00011a | 0.00055 |
| 58-89-9 | Gamma-HCH (Lindane) | 0.0002c | 0.001c |
| 77-47-4 | Hexachlorocyclopentadiene | 0.05c | 0.5c |
| 67-72-1 | Hexachloroethane | 0.007 | 0.035 |
| 193-39-5 | Indeno(1,2,3-c,d)pyrene | 0.00043a | 0.00215 |
| 78-59-1 | Isophorone | 1.4 | 1.4 |
| 72-43-5 | Methoxychlor | 0.04c | 0.2c |
| 74-83-9 | Methyl bromide
(Bromomethane) |
0.0098 | 0.049 |
| 1634-04-4 | Methyl tertiary-butyl ether | 0.07 | 0.07 |
| 75-09-2 | Methylene chloride
(Dichloromethane) |
0.005c | 0.05c |
| 95-48-7 | 2-Methylphenol (o-Cresol) | 0.35 | 0.35 |
| 91-20-3 | Naphthalene | 0.14 | 0.22 |
| 98-95-3 | Nitrobenzeneb | 0.0035 | 0.0035 |
Groundwater Remediation Objective
|
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| 86-30-6 | N-Nitrosodiphenylamine | 0.0032 a | 0.016 |
| 621-64-7 | N-Nitrosodi-n-propylamine | 0.0018 a | 0.0018 |
| 87-86-5 | Pentachlorophenol | 0.001c | 0.005c |
| 108-95-2 | Phenol | 0.1c | 0.1c |
| 1918-02-1 | Picloram | 0.5c | 5.0c |
| 1336-36-3 | Polychlorinated biphenyls (PCBs) | 0.0005c | 0.0025c |
| 129-00-0 | Pyrene | 0.21 | 1.05 |
| 122-34-9 | Simazine | 0.004c | 0.04c |
| 100-42-5 | Styrene | 0.1c | 0.5c |
| 93-72-1 | 2,4,5-TP
(Silvex) |
0.05c | 0.25c |
| 127-18-4 | Tetrachloroethylene
(Perchloroethylene) |
0.005c | 0.025c |
| 108-88-3 | Toluene | 1.0c | 2.5c |
| 8001-35-2 | Toxaphene | 0.003c | 0.015c |
| 120-82-1 | 1,2,4-Trichlorobenzene | 0.07c | 0.7c |
| 71-55-6 | 1,1,1-Trichloroethaneb | 0.2c | 1.0c |
| 79-00-5 | 1,1,2-Trichloroethane | 0.005c | 0.05c |
| 79-01-6 | Trichloroethylene | 0.005c | 0.025c |
| 95-95-4 | 2,4,5-Trichlorophenol (pH 4.9-7.8) | 0.7 | 3.5 |
| 2,4,5-Trichlorophenol (pH 7.9-8.0) | 0.7 | 0.7 | |
| 88-06-2 | 2,4,6-Trichlorophenol (pH 4.9-6.8) | 0.01a | 0.05 |
| 2,4,6-Trichlorophenol (pH 6.9-8.0) | 0.01 | 0.01 | |
| 108-05-4 | Vinyl acetate | 7.0 | 7.0 |
| 75-01-4 | Vinyl chloride | 0.002c | 0.01c |
| 1330-20-7 | Xylenes (total) | 10.0c | 10.0c |
Groundwater Remediation Objective
|
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| Inorganics | |||
| 7440-36-0 | Antimony | 0.006c | 0.024c |
| 7440-38-2 | Arsenic | 0.05c | 0.2c |
| 7440-39-3 | Barium | 2.0c | 2.0c |
| 7440-41-7 | Beryllium | 0.004c | 0.5c |
| 7440-42-8 | Boron | 2.0c | 2.0c |
| 7440-43-9 | Cadmium | 0.005c | 0.05c |
| 7440-70-2 | Calcium | ---d | ---d |
| 16887-00-6 | Chloride | 200c | 200c |
| 7440-47-3 | Chromium, total | 0.1c | 1.0c |
| 18540-29-9 | Chromium, ion, hexavalent | --- | --- |
| 7440-48-4 | Cobalt | 1.0c | 1.0c |
| 7440-50-8 | Copper | 0.65c | 0.65c |
| 57-12-5 | Cyanide | 0.2c | 0.6c |
| 7782-41-4 | Fluoride | 4.0c | 4.0c |
| 15438-31-0 | Iron | 5.0c | 5.0c |
| 7439-92-1 | Lead | 0.0075c | 0.1c |
| 7439-95-4 | Magnesium | ---d | ---d |
| 7439-96-5 | Manganese | 0.15c | 10.0c |
| 7439-97-6 | Mercury | 0.002c | 0.01c |
| 7440-02-0 | Nickel | 0.1c | 2.0c |
| 14797-55-8 | Nitrate as N | 10.0c | 100c |
| 7723-14-0 | Phosphorus | ---d | ---d |
| 7440-09-7 | Potassium | ---d | ---d |
| 7782-49-2 | Selenium | 0.05c | 0.05c |
Groundwater Remediation Objective
|
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| 7440-22-4 | Silver | 0.05c | --- |
| 7440-23-5 | Sodium | ---d | ---d |
| 14808-79-8 | Sulfate | 400c | 400c |
| 7440-28-0 | Thallium | 0.002c | 0.02c |
| 7440-62-2 | Vanadiumb | 0.049 | 0.1 |
| 7440-66-6 | Zinc | 5.0c | 10c |
| a | The groundwater remediation objective is equal to the ADL for carcinogens according to the procedures specified in 35 Ill. Adm. Code 620. |
| b | Oral Reference Dose and/or Reference Concentration under review by USEPA. Listed values subject to change. |
| c | Value listed is also the Groundwater Quality Standard for this chemical pursuant to 35 Ill. Adm. Code 620.410 for Class I Groundwater or 35 Ill. Adm. Code 620.420 for Class II Groundwater. |
| d | This chemical is included in the Total Dissolved Solids (TDS) Groundwater Quality Standard of 1,200 mg/l pursuant to 35 Ill. Adm. Code 620.410 for Class I Groundwater or 35 Ill. Adm. Code 620.420 for Class II Groundwater. |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
GWobj Concentration used to Calculate
Tier 1 Soil Remediation Objectivesa |
CAS No.
|
Chemical Name
Organics |
Class I
(mg/L) |
Class II
(mg/L) |
| 83-32-9 | Acenaphthene | 2.0b | 10 |
| 67-64-1 | Acetone | 6.3 | 6.3 |
| 15972-60-8 | Alachlor | 0.002c | 0.01c |
| 116-06-3 | Aldicarb | 0.003c | 0.015c |
| 309-00-2 | Aldrin | 5.0E-6b | 2.5E-5 |
| 120-12-7 | Anthracene | 10b | 50 |
| 1912-24-9 | Atrazine | 0.003c | 0.015c |
| 71-43-2 | Benzene | 0.005c | 0.025c |
| 56-55-3 | Benzo(a)anthracene | 0.0001b | 0.0005 |
| 205-99-2 | Benzo(b)fluoranthene | 0.0001b | 0.0005 |
| 207-08-9 | Benzo(k)fluroanthene | 0.001b | 0.005 |
| 50-32-8 | Benzo(a)pyrene | 0.0002a,c | 0.002c |
| 65-85-0 | Benzoic Acid | 100b | 100 |
| 111-44-4 | Bis(2-chloroethyl)ether | 8.0E-5b | 8.0E-5 |
| 117-81-7 | Bis(2-ethylhexyl)phthalate (Di(2-ethylhexyl)phthalate) | 0.006a,c | 0.06c |
| 75-27-4 | Bromodichloromethane
(Dichlorobromomethane) |
0.1b | 0.1 |
| 75-25-2 | Bromoform | 0.1b | 0.01 |
| 71-36-3 | Butanol | 4.0b | 4.0 |
| 85-68-7 | Butyl benzyl phthalate | 7.0b | 35 |
| 86-74-8 | Carbazole | 0.004b | 0.02 |
| 1563-66-2 | Carbofuran | 0.04c | 0.2c |
| 75-15-0 | Carbon disulfide | 4.0b | 20 |
| 56-23-5 | Carbon tetrachloride | 0.005c | 0.025c |
| 57-74-9 | Chlordane | 0.002c | 0.01c |
GWobj Concentration used to Calculate
Tier 1 Soil Remediation Objectivesa |
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
106-47-8
|
4-Chloroaniline ( r -Chloroaniline) | 0.1b
|
0.1
|
| 108-90-7 | Chlorobenzene
(Monochlorobenzene) |
0.1c | 0.5c |
| 124-48-1 | Chlorodibromomethane
(Dibromochloromethane) |
0.06b | 0.06 |
| 67-66-3 | Chloroform | 0.1b | 0.5 |
| 95-57-8 | 2-Chlorophenol (pH 4.9-7.3) | 0.2b | 1.0 |
| 2-Chlorophenol (pH 7.4-8.0) | 0.2 | 0.2 | |
| 218-01-9 | Chrysene | 0.1b | 0.05 |
| 94-75-7 | 2,4-D | 0.07c | 0.35c |
| 75-99-0 | Dalapon | 0.2c | 2.0c |
| 72-54-8 | DDD | 0.0004b | 0.002 |
| 72-55-9 | DDE | 0.0003b | 0.0015 |
| 50-29-3 | DDT | 0.0003b | 0.0015 |
| 53-70-3 | Dibenzo(a,h)anthracene | 1.0E-5b | 5.0E-5 |
| 96-12-8 | 1,2-Dibromo-3-chloropropane | 0.0002c | 0.002 c |
| 106-93-4 | 1,2-Dibromoethane
(Ethylene dibromide) |
0.00005a,c | 0.0005c |
| 84-74-2 | Di-n-butyl phthalate | 4.0b | 20 |
| 95-50-1 | 1,2-Dichlorobenzene
(o – Dichlorobenzene) |
0.6c | 1.5c |
| 106-46-7 | 1,4-Dichlorobenzene
(p – Dichlorobenzene) |
0.075c | 0.375c |
| 91-94-1 | 3,3’-Dichlorobenzidine | 0.0002b | 0.001 |
| 75-34-3 | 1,1-Dichloroethane | 4.0b | 20 |
| 107-06-2 | 1,2-Dichloroethane
(Ethylene dichloride) |
0.005c | 0.025c |
| 75-35-4 | 1,1-Dichloroethylene | 0.007c | 0.035c |
| 156-59-2 | cis-1,2-Dichloroethylene | 0.07c | 0.2c |
| 156-60-5 | trans-1,2-Dichloroethylene | 0.1c | 0.5c |
| 120-83-2 | 2,4-Dichlorophenol | 0.1b | 0.1 |
| 78-97-5 | 1,2-Dichloropropane | 0.005c | 0.025c |
| 542-75-6 | 1,3-Dichloropropene
(1,3-Dichloropropylene, cis + trans) |
0.0005b | 0.0025 |
GWobj Concentration used to Calculate
Tier 1 Soil Remediation Objectivesa |
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| 60-57-1 | Dieldrin | 5.0E-6b | 2.5E-5 |
| 84-66-2 | Diethyl phthalate | 30b | 30 |
| 105-67-9 | 2,4-Dimethylphenol | 0.7b | 0.7 |
| 51-28-5 | 2,4-Dinitrophenol | 0.04b | 0.04 |
| 121-14-2 | 2,4-Dinitrotoluene | 0.0001b | 0.0001 |
| 606-20-2 | 2,6-Dinitrotoluene | 0.0001 | 0.0001 |
| 88-85-7 | Dinoseb | 0.007c | 0.07c |
| 117-84-0 | Di-n-octyl phthalate | 0.7b | 3.5 |
| 115-29-7 | Endosulfan | 0.2b | 1.0 |
| 145-73-3 | Endothall | 0.1c | 0.1c |
| 72-20-8 | Endrin | 0.002c | 0.01c |
| 100-41-4 | Ethylbenzene | 0.7c | 1.0c |
| 206-44-0 | Fluoranthene | 1.0b | 5.0 |
| 86-73-7 | Fluorene | 1.0b | 5.0 |
| 76-44-8 | Heptachlor | 0.0004c | 0.002c |
| 1024-57-3 | Heptachlor epoxide | 0.0002c | 0.001c |
| 118-74-1 | Hexachlorobenzene | 0.001b | 0.005 |
| 319-84-6 | alpha-HCH (alpha-BHC) | 1.0E-5b | 5.0E-5 |
| 58-89-9 | Gamma-HCH (Lindane) | 0.0002c | 0.001c |
| 77-47-4 | Hexachlorocyclopentadiene | 0.05c | 0.5c |
| 67-72-1 | Hexachloroethane | 0.007 | 0.035 |
| 193-39-5 | Indeno(1,2,3-c,d)pyrene | 0.0001b | 0.0005 |
| 78-59-1 | Isophorone | 1.4 | 1.4 |
| 72-43-5 | Methoxychlor | 0.04c | 0.2c |
| 74-83-9 | Methyl bromide
(Bromomethane) |
0.05b | 0.25 |
| 1634-04-4 | Methyl tertiary-butyl ether | 0.07 | 0.07 |
| 75-09-2 | Methylene chloride
(Dichloromethane) |
0.005c | 0.05c |
| 95-48-7 | 2-Methylphenol (o-Cresol) | 2.0b | 2.0 |
| 91-20-3 | Naphthalene | 0.14 | 0.22 |
| 98-95-3 | Nitrobenzene | 0.02b | 0.02 |
GWobj Concentration used to Calculate
Tier 1 Soil Remediation Objectivesa |
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| 86-30-6 | N-Nitrosodiphenylamine | 0.02b | 0.1 |
| 621-64-7 | N-Nitrosodi-n-propylamine | 1.0E-5b | 1.0E-5 |
| 87-86-5 | Pentachlorophenol | 0.001a,c | 0.005c |
| 108-95-2 | Phenol | 0.1c | 0.1c |
| 1918-02-1 | Picloram | 0.5c | 5.0c |
| 1336-36-3 | Polychlorinated biphenyls (PCBs) | --- | --- |
| 129-00-0 | Pyrene | 1.0b | 5.0 |
| 122-34-9 | Simazine | 0.004c | 0.04c |
| 100-42-5 | Styrene | 0.1c | 0.5c |
| 93-72-1 | 2,4,5-TP
(Silvex) |
0.05c | 0.25c |
| 127-18-4 | Tetrachloroethylene
(Perchloroethylene) |
0.005c | 0.025c |
| 108-88-3 | Toluene | 1.0c | 2.5c |
| 8001-35-2 | Toxaphene | 0.003c | 0.015c |
| 120-82-1 | 1,2,4-Trichlorobenzene | 0.07c | 0.7c |
| 71-55-6 | 1,1,1-Trichloroethane | 0.2c | 1.0c |
| 79-00-5 | 1,1,2-Trichloroethane | 0.005c | 0.05c |
| 79-01-6 | Trichloroethylene | 0.005c | 0.025c |
| 95-95-4 | 2,4,5-Trichlorophenol (pH 4.9-7.8) | 4.0b | 20 |
| 2,4,5-Trichlorophenol (pH 7.9-8.0) | 4.0 | 4.0 | |
| 88-06-2 | 2,4,6-Trichlorophenol (pH 4.9-6.8) | 0.008b | 0.04 |
| 2.4.6-Trichlorophenol (pH 6.9-8.0) | 0.008 | 0.008 | |
| 108-05-4 | Vinyl acetate | 40b | 40 |
| 75-01-4 | Vinyl chloride | 0.002c | 0.01c |
| 1330-20-7 | Xylenes (total) | 10.0c | 10.0c |
GWobj Concentration used to Calculate
Tier 1 Soil Remediation Objectivesa |
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| Inorganics | |||
| 7440-36-0 | Antimony | 0.006c | 0.024c |
| 7440-38-2 | Arsenic | 0.05c | 0.2c |
| 7440-39-3 | Barium | 2.0c | 2.0c |
| 7440-41-7 | Beryllium | 0.004c | 0.5c |
| 7440-42-8 | Boron | 2.0c | 2.0c |
| 7440-43-9 | Cadmium | 0.005c | 0.05c |
| 7440-70-2 | Calcium | --- | --- |
| 16887-00-6 | Chloride | 200c | 200c |
| 7440-47-3 | Chromium, total | 0.1c | 1.0c |
| 18540-29-9 | Chromium, ion, hexavalent | --- | --- |
| 7440-48-4 | Cobalt | 1.0c | 1.0c |
| 7440-50-8 | Copper | 0.65c | 0.65c |
| 57-12-5 | Cyanide | 0.2c | 0.6c |
| 7782-41-4 | Fluoride | 4.0c | 4.0c |
| 15438-31-0 | Iron | 5.0c | 5.0c |
| 7439-92-1 | Lead | 0.0075c | 0.1c |
| 7439-95-4 | Magnesium | --- | --- |
| 7439-96-5 | Manganese | 0.15c | 10.0c |
| 7439-97-6 | Mercury | 0.002c | 0.01c |
| 7440-02-0 | Nickel | 0.1c | 2.0c |
| 14797-55-8 | Nitrate as N | 10.0c | 100c |
GWobj Concentration used to Calculate
Tier 1 Soil Remediation Objectivesa |
CAS No.
|
Chemical Name | Class I
(mg/L) |
Class II
(mg/L) |
| 7723-14-0 | Phosphorus | --- | --- |
| 7440-09-7 | Potassium | --- | --- |
| 7782-49-2 | Selenium | 0.05c | 0.05c |
| 7440-22-4 | Silver | 0.05c | --- |
| 7440-23-5 | Sodium | --- | --- |
| 14808-79-8 | Sulfate | 400c | 400c |
| 7440-28-0 | Thallium | 0.002c | 0.02c |
| 7440-62-2 | Vanadium | 0.049 | 0.1 |
| 7440-66-6 | Zinc | 5.0c | 10c |
| a The Equation S17 is used to calculate the Soil Remediation Objective for the Soil Component of the Groundwater Ingestion Route; this equation requires calculation of the Target Soil Leachate Concentration (Cw) from Equation S18: Cw = DF x GWobj. | |
| b Value listed is the Water Health Based Limit (HBL) for this chemical from Soil Screening Guidance: User’s Guide, incorporated by reference at Section 742.210. The HBL is equal to the non-zero MCLG (if available); the MCL (if available); or, for carcinogens, a cancer risk of 1.0E-6, and for noncarcinogens is equal to a Hazard Quotient of 1.0. NOTE: These GWobj concentrations are not equal to the Tier 1 Groundwater Remediation Objectives for the Direct Ingestion of Groundwater Component of the Groundwater Ingestion Route, listed in Section 742.Appendix B, Table E. | |
| c Value listed is also the Groundwater Quality Standard for this chemical pursuant to 35 Ill. Adm. Code 620.410 for Class I Groundwater or 35 Ill. Adm. Code 620.420 for Class II Groundwater. | |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
(Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007)
Section 742.APPENDIX C Tier 2 Illustrations and Tables
(Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007)
Section 742.APPENDIX C Tier 2 Illustrations and Tables
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Equations for Soil Ingestion Exposure Route | Remediation Objectives for Noncarcinogenic Contaminants
(mg/kg) |
|
S1 |
| Remediation Objectives for Carcinogenic Contaminants - Residential
(mg/kg) |
|
S2 |
|
| Remediation Objectives for Carcinogenic
Contaminants - Industrial/ Commercial, Construction Worker (mg/kg) |
|
S3 |
|
| Equations for Inhalation Exposure Route (Organic Contaminants and Mercury)
|
Remediation Objectives for Noncarcinogenic Contaminants - Residential, Industrial/Commercial (mg/kg) | 
|
S4 |
| Remediation Objectives for Noncarcinogenic Contaminants - Construction Worker (mg/kg) | 
|
S5 |
|
| Remediation Objectives for Carcinogenic Contaminants - Residential, Industrial/ Commercial (mg/kg) | 
|
S6 |
|
| Remediation Objectives for Carcinogenic Contaminants - Construction Worker (mg/kg)
|
|
S7 |
|
| Equation for Derivation of the Volatilization Factor - Residential, Industrial/ Commercial, VF (m3/kg) | 
|
S8 |
|
| Equation for Derivation of the Volatilization Factor - Construction Worker, VF ¢ (m3/kg) | 
|
S9 |
|
| Equation for Derivation
of Apparent Diffusivity, DA (cm2/s) |
|
S10 |
| Equations for Inhalation Exposure Route (Fugitive Dusts) | Remediation Objectives for Noncarcinogenic Contaminants - Residential, Industrial/Commercial (mg/kg) | 
|
S11 |
| Remediation Objectives for Noncarcinogenic Contaminants - Construction Worker (mg/kg) | 
|
S12 |
|
| Remediation Objectives for Carcinogenic Contaminants - Residential, Industrial/ Commercial (mg/kg) | 
|
S13 |
|
| Remediation Objectives for Carcinogenic Contaminants - Construction Worker (mg/kg) | 
|
S14 |
|
| Equation for Derivation of Particulate Emission Factor, PEF (m3/kg) | 
|
S15 |
| Equation for Derivation of Particulate Emission Factor, PEF ¢ - Construction Worker (m3/kg) | 
NOTE: PEF must be the industrial/commercial value |
S16 |
|
| Equations for the Soil Component of the Groundwater Ingestion Exposure Route | Remediation Objective
(mg/kg) |
NOTE: This equation can only be used to model contaminant migration not in the water bearing unit. |
S17 |
| Target Soil Leachate Concentration, Cw
(mg/L) |
|
S18 |
|
| Soil-Water Partition Coefficient, Kd
(cm3/g) |
|
S19 |
|
| Water-Filled Soil Porosity,
q
w
(Lwater/Lsoil) |
|
S20 |
|
| Air-Filled Soil Porosity,
q
a
(Lair/Lsoil) |
|
S21 |
|
| Dilution Factor, DF (unitless) | 
|
S22 |
| Groundwater Remediation Objective for Carcinogenic Contaminants, GWobj
(mg/L) |
|
S23 |
|
| Total Soil Porosity,
h
(Lpore/Lsoil) |
|
S24 |
|
| Equation for Estimation of Mixing Zone Depth, d
(m) |
|
S25 |
|
| Mass-Limit Equations for Inhalation Exposure Route and Soil Component of the Groundwater Ingestion Exposure Route | Mass-Limit Volatilization Factor for the Inhalation Exposure Route - Residential, Industrial/ Commercial, VF (m3/kg) | 
NOTE: This equation may be used when vertical thickness of contamination is known or can be estimated reliably. |
S26 |
| Mass-Limit Volatilization Factor for Inhalation Exposure Route - Construction Worker, VF ¢ - (m3/kg) |
|
S27 |
| Mass-Limit Remediation Objective for Soil Component of the Groundwater Ingestion Exposure Route (mg/kg)
|
NOTE: This equation may be used when vertical thickness is known or can be estimated reliably. |
S28 |
| Equation for Derivation of the Soil Saturation Limit, Csat
|
|
S29 |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| AT | Averaging Time for Noncarcinogens in Ingestion Equation | yr | Residential = 6
Industrial/Commercial = 25 Construction Worker = 0.115 |
|
| AT | Averaging Time for Noncarcinogens in Inhalation Equation | yr | Residential = 30
Industrial/Commercial = 25 Construction Worker = 0.115 |
|
| ATc | Averaging Time for Carcinogens | yr | SSL | 70 |
| BW | Body Weight | kg | Residential = 15, noncarcinogens
70, carcinogens Industrial/Commercial = 70 Construction Worker = 70 |
|
| Csat | Soil Saturation Concentration | mg/kg | Appendix A, Table A or
Equation S29 in Appendix C, Table A |
Chemical-Specific or
Calculated Value |
| Cw | Target Soil Leachate Concentration | mg/L | Equation S18 in
Appendix C, Table A |
Groundwater Standard, Health Advisory concentration, or
Calculated Value |
| d | Mixing Zone Depth | m | SSL or
Equation S25 in Appendix C, Table A |
2 m or
Calculated Value |
| da | Aquifer Thickness | m | Field Measurement | Site-Specific |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| ds | Depth of Source
(Vertical thickness of contamination) |
m | Field Measurement or Estimation | Site-Specific |
| DA | Apparent Diffusivity | cm2/s | Equation S10 in
Appendix C, Table A |
Calculated Value |
| Di | Diffusivity in Air | cm2/s | Appendix C, Table E | Chemical-Specific |
| Dw | Diffusivity in Water | cm2/s | Appendix C, Table E | Chemical-Specific |
| DF | Dilution Factor | unitless | Equation S22 in
Appendix C, Table A |
20 or Calculated Value |
| ED | Exposure Duration for Ingestion of Carcinogens | yr | Industrial/Commercial = 25
Construction Worker = 1 |
|
| ED | Exposure Duration for Inhalation of Carcinogens | yr | Residential = 30
Industrial/Commercial = 25 Construction Worker = 1 |
|
| ED | Exposure Duration for Ingestion of Noncarcinogens | yr | Residential = 6
Industrial/Commercial = 25 Construction Worker = 1 |
|
| ED | Exposure Duration for Inhalation of Noncarcinogens | yr | Residential = 30
Industrial/Commercial = 25 Construction Worker = 1 |
|
| ED | Exposure Duration for the Direct Ingestion of Groundwater | yr | Residential = 30
Industrial/Commercial = 25 Construction Worker = 1 |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| EDM-L | Exposure Duration for Migration to Groundwater Mass-Limit Equation S28 | yr | SSL | 70 |
| EF | Exposure Frequency | d/yr | Residential = 350
Industrial/Commercial = 250 Construction Worker = 30 |
|
| F(x) | Function dependent on Um/Ut | unitless | SSL | 0.194 |
| foc | Organic Carbon Content of Soil | g/g | SSL or
Field Measurement (See Appendix C, Table F) |
Surface Soil = 0.006
Subsurface soil = 0.002, or Site-Specific |
| GWobj | Groundwater Remediation Remediation Objective | mg/L | Appendix B, Table E,
35 IAC 620.Subpart F, or Equation S23 in Appendix C, Table A |
Chemical-Specific or Calculated |
| H' | Henry's Law Constant | unitless | Appendix C, Table E | Chemical-Specific |
| i | Hydraulic Gradient | m/m | Field Measurement
(See Appendix C, Table F) |
Site-Specific |
| I | Infiltration Rate | m/yr | SSL | 0.3 |
| IM-L | Infiltration Rate for Migration to Groundwater Mass-Limit Equation S28 | m/yr | SSL | 0.18 |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| IFsoil-adj
(residential) |
Age Adjusted Soil Ingestion Factor for Carcinogens | (mg-yr)/(kg-d) | SSL | 114 |
| IRsoil | Soil Ingestion Rate | mg/d | Residential = 200
Industrial/Commercial = 50 Construction Worker = 480 |
|
| IRW | Daily Water Ingestion Rate | L/d | Residential = 2
Industrial/Commercial = 1 |
|
| K | Aquifer Hydraulic Conductivity | m/yr | Field Measurement
(See Appendix C, Table F) |
Site-Specific |
| Kd (Non-ionizing organics) | Soil-Water Partition Coefficient | cm3/g or L/kg | Equation S19 in
Appendix C, Table A |
Calculated Value |
| Kd (Ionizing organics) | Soil-Water Partition Coefficient | cm3/g or L/kg | Equation S19 in Appendix C, Table A | Chemical and pH-Specific (see Appendix C, Table I) |
| Kd (Inorganics) | Soil-Water Partition Coefficient | cm3/g or L/kg | Appendix C, Table J | Chemical and pH-Specific |
| Koc | Organic Carbon Partition Coefficient | cm3/g or L/kg | Appendix C, Table E
or Appendix C, Table I |
Chemical-Specific |
| Ks | Saturated Hydraulic Conductivity | m/yr | Appendix C, Table K
Appendix C, Illustration C |
Site-Specific |
| L | Source Length Parallel to Groundwater Flow | m | Field Measurement | Site-Specific |
| PEF | Particulate Emission
Factor |
m3/kg | SSL or Equation S15 in Appendix C, Table A | Residential = 1.32
·
109 or Site-Specific
Industrial/Commercial = 1.24 · 109 or Site-Specific |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| PEF ¢ | Particulate Emission Factor adjusted for Agitation (construction worker) | m3/kg | Equation S16 in Appendix C, Table A using PEF (industrial/commercial) | 1.24 · 108 or Site-Specific |
| Q/C
(used in VF equations) |
Inverse of the mean concentration at the center of a square source | (g/m2-s)/(kg/m3) | Appendix C, Table H | Residential = 68.81
Industrial/Commercial = 85.81 Construction Worker = 85.81 |
| Q/C
(used in PEF equations) |
Inverse of the mean concentration at the center of a square source | (g/m2-s)/(kg/m3) | SSL or Appendix C, Table H | Residential = 90.80
Industrial/Commercial = 85.81 Construction Worker = 85.81 |
| RfC | Inhalation Reference Concentration | mg/m3 | IEPA (IRIS/HEASTa) | Toxicological-Specific
(Note: for Construction Workers use subchronic reference concentrations) |
| RfDo | Oral Reference Dose | mg/(kg-d) | IEPA (IRIS/HEASTa) | Toxicological-Specific
(Note: for Construction Worker use subchronic reference doses) |
| S | Solubility in Water | mg/L | Appendix C, Table E | Chemical-Specific |
| SFo | Oral Slope Factor | (mg/kg-d)-1 | IEPA (IRIS/HEASTa) | Toxicological-Specific |
| T | Exposure Interval | s | Residential = 9.5
·
108
Industrial/Commercial = 7.9 · 108 Construction Worker = 3.6 · 106 |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| TM-L | Exposure Interval for Mass-Limit Volatilization Factor Equation S26 | yr | SSL | 30 |
| THQ | Target Hazard Quotient | unitless | SSL | 1 |
| TR | Target Cancer Risk | unitless | Residential = 10-6 at the point of human exposure
Industrial/Commercial = 10-6 at the point of human exposure Construction Worker = 10-6 at the point of human exposure |
|
| Um | Mean Annual Windspeed | m/s | SSL | 4.69 |
| URF | Inhalation Unit Risk Factor | (ug/m3)-1 | IEPA (IRIS/HEASTa) | Toxicological-Specific |
| Ut | Equivalent Threshold Value of Windspeed at 7 m | m/s | SSL | 11.32 |
| V | Fraction of Vegetative Cover | unitless | SSL or Field Measurement | 0.5 or Site-Specific |
| VF | Volatilization Factor | m3/kg | Equation S8 in
Appendix C, Table A |
Calculated Value |
| VF ¢ | Volatilization Factor adjusted for Agitation | m3/kg | Equation S9 in
Appendix C, Table A |
Calculated Value |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| VFM-L | Mass-Limit Volatilization Factor | m3/kg | Equation S26 in
Appendix C, Table A |
Calculated Value |
| VF ¢ M-L | Mass-Limit Volatilization Factor adjusted for Agitation | m3/kg | Equation S27 in
Appendix C, Table A |
Calculated Value |
| h | Total Soil Porosity | Lpore/Lsoil | SSL or
Equation S24 in Appendix C, Table A |
0.43, or
|
| q a | Air-Filled Soil Porosity | Lair/Lsoil | SSL or
Equation S21 in Appendix C, Table A |
Surface Soil (top 1 meter) = 0.28
Subsurface Soil (below 1 meter) = 0.13, or Gravel = 0.05 Sand = 0.14 Silt - 0.24 Clay = 0.19, or Calculated Value |
| q w | Water-Filled Soil Porosity | Lwater/Lsoil | SSL or
Equation S20 in Appendix C, Table A |
Surface Soil (top 1 meter) = 0.15
Subsurface Soil (below 1 meter) = 0.30, or Gravel = 0.20 Sand = 0.18 Silt = 0.16 Clay = 0.17, or Calculated Value |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| r b | Dry Soil Bulk Density | kg/L or g/cm3 | SSL or
Field Measurement (See Appendix C, Table F) |
1.5, or
Gravel = 2.0
Site-Specific |
| r s | Soil Particle Density | g/cm3 | SSL or
Field Measurement (See Appendix C, Table F) |
2.65, or
Site-Specific |
| r w | Water Density | g/cm3 | SSL | 1 |
| 1/(2b+3) | Exponential in Equation S20 | unitless | Appendix C, Table K
Appendix C, Illustration C |
Site-Specific |
| a HEAST = Health Effects Assessment Summary Tables. USEPA, Office of Solid Waste and Emergency Response. EPA/SQO/R-95/036. Updated Quarterly. | |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Equations for the combined exposures routes of soil ingestion inhalation of vapors and particulates, and | Remediation Objectives for Carcinogenic Contaminants (mg/kg) | 
|
R1 |
| dermal contact with soil | Remediation Objectives for Non-carcinogenic Contaminants (mg/kg) | 
|
R2 |
| Volatilization Factor for Surficial Soils, VFss
(kg/m3) Whichever is less between R3 and R4 |
|
R3 |
|
|
R4 |
| Volatilization Factor for Surficial Soils Regarding Particulates, VFp
(kg/m3) |
|
R5 |
|
| Effective Diffusion Coefficient in Soil Based on Vapor-Phase Concentration Dseff
(cm2/s) |
|
R6 |
|
| Equations for the ambient vapor inhalation (outdoor) route fromsubsurface soils | Remediation Objectives for Carcinogenic Contaminants (mg/kg) | 
|
R7 |
| Remediation Objectives for Non-carcinogenic Contaminants (mg/kg) |
|
R8 |
| Carcinogenic Risk-Based Screening Level for Air, RBSLair
(ug/m3) |
|
R9 |
|
| Noncarcinogenic Risk-Based Screening Level for Air, RBSLair
(ug/m3) |
|
R10 |
|
| Volatilization Factor - Subsurface Soil to Ambient Air, VFsamb
|
|
R11 |
| Equations for the Soil Component of the Groundwater
Ingestion Exposure Route |
Remediation Objective
(mg/kg) |
NOTE: This equation can only be used to model contaminant migration not in the water bearing unit. |
R12 |
| Groundwater at the source, GWsource
(mg/L) |
|
R13 |
|
| Leaching Factor,
LFsw (mg/Lwater)/(mg/kgsoil) |
|
R14 |
|
| Steady-State Attenuation Along the Centerline of a Dissolved Plume,
C(x)/Csource |
NOTE: 1. This equation does not predict the contaminant flow within bedrock and may not accurately predict downgradient concentrations in the presence of a confining layer. 2. If the value of the First Order Degradation Constant ( l ) is not readily available, then set l = 0. |
R15 |
|
| Longitudinal Dispersivity,
a
x
(cm) |
|
R16 |
| Transverse Dispersivity,
a
y
(cm) |
|
R17 |
|
| Vertical Dispersivity,
a
z
(cm) |
|
R18 |
|
| Specific Discharge, U
(cm/d) |
|
R19 |
|
| Soil-Water Sorption Coefficient, ks | 
|
R20 |
|
| Volumetric Air Content in Vadose Zone Soils,
q
as
(cm3air/cm3soil) |
|
R21 |
|
| Volumetric Water Content in Vadose Zone Soils,
q
ws
(cm3water/cm3soil) |
|
R22 |
|
| Total Soil Porosity,
q
T
(cm3/cm3soil) |
|
R23 |
| Groundwater Darcy Velocity, Ugw
(cm/yr) |
|
R24 |
|
| Equations for the Groundwater Ingestion Exposure Route | Remediation Objective for Carcinogenic Contaminants
(mg/L) |
|
R25 |
| Dissolved Hydrocarbon Concentration along Centerline, C(x)
(mg/L water) |
1. This equation does not predict the contaminant flow within bedrock and may not accurately predict downgradient concentrations in the presence of a confining layer. 2. If the value of the First Order Degradation Constant ( l ) is not readily available, then set l = 0. |
R26 |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| ATc | Averaging Time for Carcinogens | yr | RBCA | 70 |
| ATn | Averaging Time for Noncarcinogens | yr | RBCA | Residential = 30
Industrial/Commercial = 25 Construction Worker = 0.115 |
| BW | Adult Body Weight | kg | RBCA | 70 |
| Csource | The greatest potential concentration of the contaminant of concern in the groundwater at the source of the contamination, based on the concentrations of contaminants in groundwater due to the release and the projected concentration of the contaminant migrating from the soil to the groundwater. | mg/L | Field Measurement | Site-Specific |
| C(x) | Concentration of Contaminant in Groundwater at Distance X from the source | mg/L | Equation R26 in
Appendix C, Table C |
Calculated Value |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| C(x)/Csource | Steady-State Attenuation Along the Centerline of a Dissolved Plume | unitless | Equation R15 in
Appendix C, Table C |
Calculated Value |
| d | Lower Depth of Surficial Soil Zone | cm | Field Measurement | 100 or
Site-Specific (not to exceed 100) |
| Dair | Diffusion Coefficient in Air | cm2/s | Appendix C, Table E | Chemical-Specific |
| Dwater | Diffusion Coefficient in Water | cm2/s | Appendix C, Table E | Chemical-Specific |
| Dseff | Effective Diffusion Coefficient in Soil Based on Vapor-Phase Concentration | cm2/s | Equation R6 in
Appendix C, Table C |
Calculated Value |
| ED | Exposure Duration | yr | RBCA | Residential = 30
Industrial/Commercial = 25 Construction Worker = 1 |
| EF | Exposure Frequency | d/yr | RBCA | Residential = 350
Industrial/Commercial = 250 Construction Worker = 30 |
| erf | Error Function | unitless | Appendix C, Table G | Mathematical Function |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| foc | Organic Carbon Content of Soil | g/g | RBCA or
Field Measurement (See Appendix C, Table F) |
Surface Soil = 0.006
Subsurface Soil = 0.002 or Site-Specific |
| GWcomp | Groundwater Objective at the Compliance Point | mg/L | Appendix B, Table E,
35 IAC 620.Subpart F, or Equation R25 in Appendix C, Table C |
Site-Specific |
| GWsource | Groundwater Concentration at the Source | mg/L | Equation R13 in
Appendix C, Table C |
Calculated Value |
| H’ | Henry’s Law Constant | cm3water/cm3air | Appendix C, Table E | Chemical-Specific |
| i | Hydraulic Gradient | cm/cm (unitless) | Field Measurement
(See Appendix C, Table F) |
Site-Specific |
| I | Infiltration Rate | cm/yr | RBCA | 30 |
| IRair | Daily Outdoor Inhalation Rate | m3/d | RBCA | 20 |
| IRsoil | Soil Ingestion Rate | mg/d | RBCA | Residential = 100
Industrial/Commercial = 50 Construction Worker = 480 |
| IRw | Daily Water Ingestion Rate | L/d | RBCA | Residential = 2
Industrial/Commercial = 1 |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| K | Aquifer Hydraulic Conductivity | cm/d for Equations R15, R19 and R26
cm/yr for Equation R24 |
Field Measurement
(See Appendix C, Table F) |
Site-Specific |
| Koc | Organic Carbon Partition Coefficient | cm3/g or L/kg | Appendix C, Table E or
Appendix C, Table I |
Chemical-Specific |
| ks
(non-ionizing organics) |
Soil Water Sorption Coefficient | cm3water/gsoil | Equation R20 in
Appendix C,Table C |
Calculated Value |
| ks
(ionizing organics) |
Soil Water Sorption Coefficient | cm3water/gsoil | Equation R20 in Appendix C, Table C | Chemical and pH-Specific (See Appendix C, Table I) |
| ks
(inorganics) |
Soil Water Sorption Coefficient | cm3water/gsoil | Appendix C, Table J | Chemical and pH-Specific |
| Ls | Depth to Subsurface Soil Sources | cm | RBCA | 100 |
| LF sw | Leaching Factor | (mg/Lwater)/
(mg/kgsoil) |
Equation R14 in
Appendix C, Table C |
Calculated Value |
| M | Soil to Skin Adherence Factor | mg/cm2 | RBCA | 0.5 |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| Pe | Particulate Emission Rate | g/cm2-s | RBCA | 6.9 · 10-14 |
| RAFd
|
Dermal Relative Absorption Factor | unitless | RBCA | 0.5 |
| RAFd
(PNAs) |
Dermal Relative Absorption Factor | unitless | RBCA | 0.05 |
| RAFd
(inorganics) |
Dermal Relative Absorption Factor | unitless | RBCA | 0 |
| RAFo | Oral Relative Absorption Factor | unitless | RBCA | 1.0 |
| RBSLair | Carcinogenic
Risk-Based Screening Level for Air |
ug/m3 | Equation R9 in
Appendix C, Table C |
Chemical-, Media-, and Exposure Route-Specific |
| RBSLair | Noncarcinogenic
Risk-Based Screening Level for Air |
ug/m3 | Equations R10 in
Appendix C, Table C |
Chemical-, Media-, and Exposure Route-Specific |
| RfDi | Inhalation Reference Dose | mg/kg-d | IEPA (IRIS/HEASTa) | Toxicological-Specific |
| RfDo | Oral Reference Dose | mg/(kg-d) | IEPA (IRIS/HEASTa) | Toxicological-Specific
(Note: for Construction Worker use subchronic reference doses) |
| SA | Skin Surface Area | cm2/d | RBCA | 3,160 |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| Sd | Source Width Perpendicular to Groundwater Flow Direction in Vertical Plane | cm | Field Measurement | For Migration to Groundwater Route:
Use 200 or Site-Specific For Groundwater remediation objective: Use Site-Specific |
| Sw | Source Width Perpendicular to Groundwater Flow Direction in Horizontal Plane | cm | Field Measurement | Site-Specific |
| SFi | Inhalation Cancer Slope Factor | (mg/kg-d)-1 | IEPA (IRIS/HEASTa) | Toxicological-Specific |
| SFo | Oral Slope Factor | (mg/kg-d)-1 | IEPA (IRIS/HEASTa) | Toxicological-Specific |
| THQ | Target Hazard Quotient | unitless | RBCA | 1 |
| TR | Target Cancer Risk | unitless | RBCA | Residential = 10-6 at the point of human exposure
Industrial/Commercial = 10-6 at the point of human exposure Construction Worker = 10-6 at the point of human exposure |
| U | Specific Discharge | cm/d | Equation R19 in
Appendix C, Table C |
Calculated Value |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| Uair | Average Wind Speed Above Ground Surface in Ambient Mixing Zone | cm/s | RBCA | 225 |
| Ugw | Groundwater Darcy Velocity | cm/yr | Equation R24 in
Appendix C, Table C |
Calculated Value |
| VF p | Volatilization Factor for Surficial Soils Regarding Particulates | kg/m3 | Equation R5 in
Appendix C, Table C |
Calculated Value |
| VFsamb | Volatilization Factor (Subsurface Soils to Ambient Air) | (mg/m3air)/(mg/kgsoil) or
kg/m3 |
Equation R11 in
Appendix C, Table C |
Calculated Value |
| VFss | Volatilization Factor for Surficial Soils | kg/m3 | Use Equations R3 and R4 in Appendix C, Table C | Calculated Value from Equation R3 or R4 (whichever is less) |
| W | Width of Source Area Parallel to Direction to Wind or Groundwater Movement | cm | Field Measurement | Site-Specific |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| w | Average Soil Moisture Content | gwater/gsoil | RBCA or
Field Measurement (See Appendix C, Table F) |
0.1, or
|
| X | Distance along the Centerline of the Groundwater Plume Emanating from a Source. The x direction is the direction of groundwater flow | cm | Field Measurement | Site-Specific |
| a x | Longitudinal Dispersitivity | cm | Equation R16 in
Appendix C, Table C |
Calculated Value |
| a y | Transverse Dispersitivity | cm | Equation R17 in
Appendix C, Table C |
Calculated Value |
| a z | Vertical Dispersitivity | cm | Equation R18 in
Appendix C, Table C |
Calculated Value |
| d air | Ambient Air Mixing Zone Height | cm | RBCA | 200 |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| d gw | Groundwater Mixing Zone Thickness | cm | RBCA | 200 |
| q as | Volumetric Air Content in Vadose Zone Soils | cm3air/cm3soil | RBCA or
Equation R21 in Appendix C, Table C |
Surface Soil (top 1 meter) = 0.28
Subsurface Soil (below 1 meter)= 0.13, Or Gravel = 0.05 Sand = 0.14 Silt = 0.16 Clay = 0.17, or Calculated Value |
| q ws | Volumetric Water Content in Vadose Zone Soils | cm3water/cm3soil | RBCA or
Equation R22 in Appendix C, Table C |
Surface Soil (top 1 meter) = 0.15
Subsurface Soil (below 1 meter) = 0.30, or Gravel = 0.20 Sand = 0.18 Silt = 0.16 Clay = 0.17, or Calculated Value |
| Symbol | Parameter | Units | Source | Parameter Value(s) |
| q T | Total Soil Porosity | cm3/cm3soil | RBCA or
Equation R23 in Appendix C, Table C |
0.43, or
|
| l | First Order Degradation Constant | d-1 | Appendix C, Table E | Chemical-Specific |
| p | pi | 3.1416 | ||
| r b | Soil Bulk Density | g/cm3 | RBCA or
Field Measurement (See Appendix C, Table F) |
1.5, or
|
| r w | Water Density | g/cm3 | RBCA | 1 |
| t | Averaging Time for Vapor Flux | s | RBCA | 9.46 · 108 |
| a HEAST = Health Effects Assessment Summary Tables. USEPA, Office of Solid Waste and Emergency Response. EPA/540/R-95/036. Updated Quarterly. | |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| Neutral Organics | |||||||
| 83-32-9 | Acenaphthene | 4.24 | 0.0421 | 7.69E-6 | 0.00636 | 7,080 | 0.0034 |
| 67-64-1 | Acetone | 1,000,000 | 0.124 | 1.14E-5 | 0.00159 | 0.575 | 0.0495 |
| 15972-60-8 | Alachlor | 242 | 0.0198 | 5.69E-6 | 0.00000132 | 394 | No Data |
| 116-06-3 | Aldicarb | 6,000 | 0.0305 | 7.19E-6 | 0.0000000574 | 12 | 0.00109 |
| 309-00-2 | Aldrin | 0.18 | 0.0132 | 4.86E-6 | 0.00697 | 2,450,000 | 0.00059 |
| 120-12-7 | Anthracene | 0.0434 | 0.0324 | 7.74E-6 | 0.00267 | 29,500 | 0.00075 |
| 1912-24-9 | Atrazine | 70 | 0.0258 | 6.69E-6 | 0.00000005 | 451 | No Data |
| 71-43-2 | Benzene | 1,750 | 0.088 | 9.80E-6 | 0.228 | 58.9 | 0.0009 |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 56-55-3 | Benzo(a)anthracene | 0.0094 | 0.0510 | 9.00E-6 | 0.000137 | 398,000 | 0.00051 |
| 205-99-2 | Benzo(b)fluoranthene | 0.0015 | 0.0226 | 5.56E-6 | 0.00455 | 1,230,000 | 0.00057 |
| 207-08-9 | Benzo(k)fluoranthene | 0.0008 | 0.0226 | 5.56E-6 | 0.000034 | 1,230,000 | 0.00016 |
| 65-85-0 | Benzoic Acid | 3,500 | 0.0536 | 7.97E-6 | 0.0000631 | 0.600 | No Data |
| 50-32-8 | Benzo(a)pyrene | 0.00162 | 0.043 | 9.00E-6 | 0.0000463 | 1,020,000 | 0.00065 |
| 111-44-4 | Bis(2-chloroethyl)ether | 17,200 | 0.0692 | 7.53E-6 | 0.000738 | 15.5 | 0.0019 |
| 117-81-7 | Bis(2-ethylhexyl)phthalate | 0.34 | 0.0351 | 3.66E-6 | 0.00000418 | 15,100,000 | 0.0018 |
| 75-27-4 | Bromodichloromethane | 6,740 | 0.0298 | 1.06E-5 | 0.0656 | 55.0 | No Data |
| 75-25-2 | Bromoform | 3,100 | 0.0149 | 1.03E-5 | 0.0219 | 87.1 | 0.0019 |
| 71-36-3 | Butanol | 74,000 | 0.0800 | 9.30E-6 | 0.000361 | 6.92 | 0.01283 |
| 85-68-7 | Butyl Benzyl Phthalate | 2.69 | 0.0174 | 4.83E-6 | 0.0000517 | 57,500 | 0.00385 |
| 86-74-8 | Carbazole | 7.48 | 0.0390 | 7.03E-6 | 0.000000626 | 3,390 | No Data |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 1563-66-2 | Carbofuran | 320 | 0.0249 | 6.63E-6 | .00377 | 37 | No Data |
| 75-15-0 | Carbon Disulfide | 1,190 | 0.104 | 1.00E-5 | 1.24 | 45.7 | No Data |
| 56-23-5 | Carbon Tetrachloride | 793 | 0.0780 | 8.80E-6 | 1.25 | 174 | 0.0019 |
| 57-74-9 | Chlordane | 0.056 | 0.0118 | 4.37E-6 | 0.00199 | 120,000 | 0.00025 |
| 106-47-8 | p-Chloroaniline | 5,300 | 0.0483 | 1.01E-5 | 0.0000136 | 66.1 | No Data |
| 108- 90 -7 | Chlorobenzene | 472 | 0.0730 | 8.70E-6 | 0.152 | 219 | 0.0023 |
| 124-48-1 | Chlorodibromomethane | 2,600 | 0.0196 | 1.05E-5 | 0.0321 | 63.1 | 0.00385 |
| 67-66-3 | Chloroform | 7,920 | 0.104 | 1.00E-5 | 0.15 | 39.8 | 0.00039 |
| 95-57-8 | 2-Chlorophenol | 22,000 | 0.0501 | 9.46E-6 | 0.016 | 388 | No Data |
| 218-01-9 | Chrysene | 0.0016 | 0.0248 | 6.21E-6 | 0.00388 | 398,000 | 0.00035 |
| 94-75-7 | 2,4-D | 680 | 0.0231 | 7.31E-6 | 0.00000041 | 451 | 0.00385 |
| 72-54-8 | 4,4'-DDD | 0.09 | 0.0169 | 4.76E-6 | 0.000164 | 1,000,000 | 0.000062 |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 72-55-9 | 4,4'-DDE | 0.12 | 0.0144 | 5.87E-6 | 0.000861 | 4,470,000 | 0.000062 |
| 50-29-3 | 4,4'-DDT | 0.025 | 0.0137 | 4.95E-6 | 0.000332 | 2,630,000 | 0.000062 |
| 75-99-0 | Dalapon | 900,000 | 0.0414 | 9.46E-6 | 0.00000264 | 5.8 | 0.005775 |
| 53-70-3 | Dibenzo(a,h)anthracene | 0.00249 | 0.0202 | 5.18E-6 | 0.000000603 | 3,800,000 | 0.00037 |
| 96-12-8 | 1,2-Dibromo-3-chloropropane | 1,200 | 0.0212 | 7.02E-6 | 0.00615 | 182 | 0.001925 |
| 106-93-4 | 1,2-Dibromoethane | 4,200 | 0.0287 | 8.06E-6 | 0.0303 | 93 | 0.005775 |
| 84-74-2 | Di-n-butyl Phthalate | 11.2 | 0.0438 | 7.86E-6 | 0.0000000385 | 33,900 | 0.03013 |
| 95-50-1 | 1,2-Dichlorobenzene | 156 | 0.0690 | 7.90E-6 | 0.0779 | 617 | 0.0019 |
| 106-46-7 | 1,4-Dichlorobenzene | 73.8 | 0.0690 | 7.90E-6 | 0.0996 | 617 | 0.0019 |
| 91-94-1 | 3,3-Dichlorobenzidine | 3.11 | 0.0194 | 6.74E-6 | 0.000000164 | 724 | 0.0019 |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 75-34-3 | 1,1-Dichloroethane | 5,060 | 0.0742 | 1.05E-5 | 0.23 | 31.6 | 0.0019 |
| 107-06-2 | 1,2-Dichloroethane | 8,520 | 0.104 | 9.90E-6 | 0.0401 | 17.4 | 0.0019 |
| 75-35-4 | 1,1-Dichloroethylene | 2,250 | 0.0900 | 1.04E-5 | 1.07 | 58.9 | 0.0053 |
| 156-59-2 | Cis-1,2-Dichloroethylene | 3,500 | 0.0736 | 1.13E-5 | 0.167 | 35.5 | 0.00024 |
| 156-60-5 | Trans-1,2-Dichloroethylene | 6,300 | 0.0707 | 1.19E-5 | 0.385 | 52.5 | 0.00024 |
| 120-83-2 | 2,4-Dichlorophenol | 4,500 | 0.0346 | 8.77E-6 | 0.00013 | 147 | 0.00027 |
| 78-87-5 | 1,2-Dichloropropane | 2,800 | 0.0782 | 8.73E-6 | 0.115 | 43.7 | 0.00027 |
| 542-75-6 | 1,3-Dichloropropylene
(cis + trans) |
2,800 | 0.0626 | 1.00E-5 | 0.726 | 45.7 | 0.061 |
| 60-57-1 | Dieldrin | 0.195 | 0.0125 | 4.74E-6 | 0.000619 | 21,400 | 0.00032 |
| 84-66-2 | Diethyl Phthalate | 1,080 | 0.0256 | 6.35E-6 | 0.0000185 | 288 | 0.00619 |
| 105-67-9 | 2,4-Dimethylphenol | 7,870 | 0.0584 | 8.69E-6 | 0.000082 | 209 | 0.0495 |
| 51-28-5 | 2,4-Dinitrophenol | 2,790 | 0.0273 | 9.06E-6 | 0.0000182 | 0.01 | 0.00132 |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 121-14-2 | 2,4-Dinitrotoluene | 270 | 0.203 | 7.06E-6 | 0.0000038 | 95.5 | 0.00192 |
| 606-20-2 | 2,6-Dinitrotoluene | 182 | 0.0327 | 7.26E-6 | 0.0000306 | 69.2 | 0.00192 |
| 88-85-7 | Dinoseb | 52 | 0.0215 | 6.62E-6 | 0.0000189 | 1,120 | 0.002817 |
| 117-84-0 | Di-n-octyl Phthalate | 0.02 | 0.0151 | 3.58E-6 | 0.00274 | 83,200,000 | 0.0019 |
| 115-29-7 | Endosulfan | 0.51 | 0.0115 | 4.55E-6 | 0.000459 | 2,140 | 0.07629 |
| 145-73-3 | Endothall | 21,000 | 0.0291 | 8.07E-6 | 0.0000000107 | 0.29 | No Data |
| 72-20-8 | Endrin | 0.25 | 0.0125 | 4.74E-6 | 0.000308 | 12,300 | 0.00032 |
| 100-41-4 | Ethylbenzene | 169 | 0.0750 | 7.80E-6 | 0.323 | 363 | 0.003 |
| 206-44-0 | Fluoranthene | 0.206 | 0.0302 | 6.35E-6 | 0.00066 | 107,000 | 0.00019 |
| 86-73-7 | Fluorene | 1.98 | 0.0363 | 7.88E-6 | 0.00261 | 13,800 | 0.000691 |
| 76-44-8 | Heptachlor | 0.18 | 0.0112 | 5.69E-6 | 60.7 | 1,410,000 | 0.13 |
| 1024-57-3 | Heptachlor epoxide | 0.2 | 0.0132 | 4.23E-6 | 0.00039 | 83,200 | 0.00063 |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 118-74-1 | Hexachlorobenzene | 6.2 | 0.0542 | 5.91E-6 | 0.0541 | 55,000 | 0.00017 |
| 319-84-6 | Alpha-HCH (alpha-BHC) | 2.0 | 0.0142 | 7.34E-6 | 0.000435 | 1,230 | 0.0025 |
| 58-89-9 | Gamma-HCH (Lindane) | 6.8 | 0.0142 | 7.34E-6 | 0.000574 | 1,070 | 0.0029 |
| 77-47-4 | Hexachlorocyclo-
Pentadiene |
1.8 | 0.0161 | 7.21E-6 | 1.11 | 200,000 | 0.012 |
| 67-72-1 | Hexachloroethane | 50 | 0.0025 | 6.80E-6 | 0.159 | 1,780 | 0.00192 |
| 193-39-5 | Indeno(1,2,3-c,d)pyrene | 0.000022 | 0.0190 | 5.66E-6 | 0.0000656 | 3,470,000 | 0.00047 |
| 78-59-1 | Isophorone | 12,000 | 0.0623 | 6.76E-6 | 0.000272 | 46.8 | 0.01238 |
| 7439-97-6 | Mercury | --- | 0.0307 | 6.30E-6 | 0.467 | --- | No Data |
| 72-43-5 | Methoxychlor | 0.045 | 0.0156 | 4.46E-6 | 0.000648 | 97,700 | 0.0019 |
| 74-83-9 | Methyl Bromide | 15,200 | 0.0728 | 1.21E-5 | 0.256 | 10.5 | 0.01824 |
| 1634-04-4 | Methyl tertiary-butyl ether | 51,000 | 0.102 | 1.10E-5 | 0.0241 | 11.5 | No Data |
| 75-09-2 | Methylene Chloride | 13,000 | 0.101 | 1.17E-5 | 0.0898 | 11.7 | 0.012 |
| 95-48-7 | 2-Methylphenol | 26,000 | 0.0740 | 8.30E-6 | 0.0000492 | 91.2 | 0.0495 |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 91-20-3 | Naphthalene | 31.0 | 0.0590 | 7.50E-6 | 0.0198 | 2,000 | 0.0027 |
| 98-95-3 | Nitrobenzene | 2,090 | 0.0760 | 8.60E-6 | 0.000984 | 64.6 | 0.00176 |
| 86-30-6 | N-Nitrosodiphenylamine | 35.1 | 0.0312 | 6.35E-6 | 0.000205 | 1,290 | 0.01 |
| 621-64-7 | N-Nitrosodi-n-propylamine | 9,890 | 0.0545 | 8.17E-6 | 0.0000923 | 24.0 | 0.0019 |
| 87-86-5 | Pentachlorophenol | 1,950 | 0.0560 | 6.10E-6 | 0.000001 | 592 | 0.00045 |
| 108-95-2 | Phenol | 82,800 | 0.0820 | 9.10E-6 | 0.0000163 | 28.8 | 0.099 |
| 1918-02-1 | Picloram | 430 | 0.0255 | 5.28E-6 | 0.00000000166 | 1.98 | No Data |
| 1336-36-3 | Polychlorinated biphenyls (PCBs) | 0.7 | -------a | -------a | -------a | 309,000 | No Data |
| 129-00-0 | Pyrene | 0.135 | 0.0272 | 7.24E-6 | 0.000451 | 105,000 | 0.00018 |
| 122-34-9 | Simazine | 5 | 0.027 | 7.36E-6 | 0.0000000133 | 133 | No Data |
| 100-42-5 | Styrene | 310 | 0.0710 | 8.00E-6 | 0.113 | 776 | 0.0033 |
| 93-72-1 | 2,4,5-TP (Silvex) | 31 | 0.0194 | 5.83E-6 | 0.0000000032 | 5,440 | No Data |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 127-18-4 | Tetrachloroethylene | 200 | 0.0720 | 8.20E-6 | 0.754 | 155 | 0.00096 |
| 108-88-3 | Toluene | 526 | 0.0870 | 8.60E-6 | 0.272 | 182 | 0.011 |
| 8001-35-2 | Toxaphene | 0.74 | 0.0116 | 4.34E-6 | 0.000246 | 257,000 | No Data |
| 120-82-1 | 1,2,4-Trichlorobenzene | 300 | 0.0300 | 8.23E-6 | 0.0582 | 1,780 | 0.0019 |
| 71-55-6 | 1,1,1-Trichloroethane | 1,330 | 0.0780 | 8.80E-6 | 0.705 | 110 | 0.0013 |
| 79-00-5 | 1,1,2-Trichloroethane | 4,420 | 0.0780 | 8.80E-6 | 0.0374 | 50.1 | 0.00095 |
| 79-01-6 | Trichloroethylene | 1,100 | 0.0790 | 9.10E-6 | 0.422 | 166 | 0.00042 |
| 95-95-4 | 2,4,5-Trichlorophenol | 1,200 | 0.0291 | 7.03E-6 | 0.000178 | 1,600 | 0.00038 |
| 88-06-2 | 2,4,6-Trichlorophenol | 800 | 0.0318 | 6.25E-6 | 0.000319 | 381 | 0.00038 |
| 108-05-4 | Vinyl Acetate | 20,000 | 0.0850 | 9.20E-6 | 0.021 | 5.25 | No Data |
| 57-01-4 | Vinyl Chloride | 2,760 | 0.106 | 1.23E-6 | 1.11 | 18.6 | 0.00024 |
| 108-38-3 | m-Xylene | 161 | 0.070 | 7.80E-6 | 0.301 | 407 | 0.0019 |
|
|
|
Solubility in Water (S) (mg/L) |
Diffusivity in Air (Di) (cm2/s) |
Diffusivity in Water (Dw) (cm2/s) |
Dimensionless
Henry's Law Constant (H') (25oC) |
Organic Carbon Partition Coefficient (Koc)
(L/kg) |
First
Order Degradation Constant ( l ) (d-1) |
| 95-47-6 | o-Xylene | 178 | 0.087 | 1.00E-5 | 0.213 | 363 | 0.0019 |
| 106-42-3 | p-Xylene | 185 | 0.0769 | 8.44E-6 | 0.314 | 389 | 0.0019 |
| 1330-20-7 | Xylenes (total) | 186 | 0.0720 | 9.34E-6 | 0.25 | 260 | 0.0019 |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Methods for Determining Physical Soil Parameters |
| Parameter | Sampling Locationa | Method |
|
r b (soil bulk density) |
Surface |
ASTM - D 1556-90
Sand Cone Methodb |
| ASTM - D 2167-94
Rubber Balloon Methodb |
||
| ASTM - D 2922-91
Nuclear Methodb |
||
| Subsurface | ASTM - D 2937-94
Drive Cylinder Methodb |
|
| r s (soil particle density) | Surface or Subsurface | ASTM - D 854-92
Specific Gravity of Soilb |
|
w (moisture content) |
Surface or Subsurface |
ASTM - D 4959-89
(Reapproved 1994) Standardb |
| ASTM - D 4643-93
Microwave Ovenb |
||
| ASTM - D2216-92
Laboratory Determinationb |
||
| ASTM - D3017-88
(Reapproved 1993) Nuclear Methodb |
||
| Equivalent USEPA Method (e.g., sample preparation procedures described in methods 3541 or 3550) |
| Methods for Determining Physical Soil Parameters |
| Parameter | Sampling Locationa | Method |
| foc (fraction organic carbon content) | Surface or Subsurface | |
| ASTM - D 2974-00
Moisture, Ash, and Organic Matterb appropriately adjusted to estimate the fraction of organic carbon as stated in Nelson and Sommers (1982) |
||
| h or q T (total soil porosity) | Surface or Subsurface (calculated) | Equation S24 in Appendix C, Table A for SSL Model, or Equation R23 in Appendix C, Table C for RBCA Model |
| q a or q as (air-filled soil porosity) | Surface or Subsurface (calculated) | Equation S21 in Appendix C, Table A for SSL Model, or Equation R21 in Appendix C, Table C for RBCA Model |
| q w or q ws (water-filled soil porosity) | Surface or Subsurface (calculated) | Equation S20 in Appendix C, Table A for SSL Model, or Equation R22 in Appendix C, Table C for RBCA Model |
|
|
|
ASTM - D 5084-90
Flexible Wall Permeameter |
| K (hydraulic conductivity) | Surface or Subsurface | Pump Test |
| Slug Test | ||
| i (hydraulic gradient) | Surface or Subsurface | Field Measurement |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
Section 742.Table G Error Function (erf)
b
|
erf (
b
)
|
| 0 | 0 |
| 0.05 | 0.056372 |
| 0.1 | 0.112463 |
| 0.15 | 0.167996 |
| 0.2 | 0.222703 |
| 0.25 | 0.276326 |
| 0.3 | 0.328627 |
| 0.35 | 0.379382 |
| 0.4 | 0.428392 |
| 0.45 | 0.475482 |
| 0.5 | 0.520500 |
| 0.55 | 0.563323 |
| 0.6 | 0.603856 |
| 0.65 | 0.642029 |
| 0.7 | 0.677801 |
| 0.75 | 0.711156 |
| 0.8 | 0.742101 |
| 0.85 | 0.770668 |
| 0.9 | 0.796908 |
| 0.95 | 0.820891 |
| 1.0 | 0.842701 |
| 1.1 | 0.880205 |
| 1.2 | 0.910314 |
| 1.3 | 0.934008 |
| 1.4 | 0.952285 |
| 1.5 | 0.966105 |
| 1.6 | 0.976348 |
| 1.7 | 0.983790 |
| 1.8 | 0.989091 |
| 1.9 | 0.992790 |
| 2.0 | 0.995322 |
| 2.1 | 0.997021 |
| 2.2 | 0.998137 |
| 2.3 | 0.998857 |
| 2.4 | 0.999311 |
| 2.5 | 0.999593 |
| 2.6 | 0.999764 |
| 2.7 | 0.999866 |
| 2.8 | 0.999925 |
| 2.9 | 0.999959 |
| 3.0 | 0.999978 |
Source
(Acres) |
Area Q/C Value
(g/m2-s per kg/m3) |
0.5
|
97.78
|
1
|
85.81
|
2
|
76.08
|
5
|
65.75
|
10
|
59.16
|
30
|
50.60
|
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| 4.7 | 7.79E+00 | 3.98E+02 | 1.59E+02 | 1.13E+04 | 2.37E+03 | 1.05E+03 | 2.41E+04 | 1.01E+04 |
| 4.9 | 5.54E+00 | 3.98E+02 | 1.59E+02 | 9.05E+03 | 2.37E+03 | 1.04E+03 | 1.85E+04 | 8.40E+03 |
| 5.0 | 4.62E+00
|
3.98E+02 | 1.59E+02 | 7.96E+03 | 2.36E+03 | 1.03E+03 | 1.59E+04 | 7.76E+03 |
3.98E+02 1.59E+02 6.93E+03 2.36E+03 1.02E+03 1.36E+04 7.30E+03
5.2 3.23E+00
3.98E+02 1.59E+02 5.97E+03 2.35E+03 1.01E+03 1.15E+04 6.91E+03
5.3 2.70E+00
3.98E+02 1.59E+02 5.10E+03 2.34E+03 9.99E+02 9.66E+03 6.60E+03
5.4 2.27E+00
3.98E+02 1.58E+02 4.32E+03 2.33E+03 9.82E+02 8.10E+03 6.36E+03
5.5 1.92E+00
3.97E+02 1.58E+02 3.65E+03 2.32E+03 9.62E+02 6.77E+03 6.16E+03
5.6 1.63E+00
3.97E+02 1.58E+02 3.07E+03 2.31E+03 9.38E+02 5.65E+03 6.00E+03
| 5.7 | 1.40E+00
|
3.97E+02 | 1.58E+02 | 2.58E+03 | 2.29E+03 | 9.10E+02 | 4.73E+03 | 5.88E+03 |
| 5.8 | 1.22E+00
|
3.97E+02 | 1.58E+02 | 2.18E+03 | 2.27E+03 | 8.77E+02 | 3.97E+03 | 5.78E+03 |
3.97E+02 1.57E+02 1.84E+03 2.24E+03 8.39E+02 3.35E+03 5.70E+03
6.0 9.50E-01
3.96E+02 1.57E+02 1.56E+03 2.21E+03 7.96E+02 2.84E+03 5.64E+03
6.1 8.54E-01
3.96E+02 1.57E+02 1.33E+03 2.17E+03 7.48E+02 2.43E+03 5.59E+03
6.2 7.78E-01
3.96E+02 1.56E+02 1.15E+03 2.12E+03 6.97E+02 2.10E+03 5.55E+03
6.3 7.19E-01
3.95E+02 1.55E+02 9.98E+02 2.06E+03 6.44E+02 1.83E+03 5.52E+03
6.4 6.69E-01
3.94E+02 1.54E+02 8.77E+02 1.99E+03 5.89E+02 1.62E+03 5.50E+03
6.5 6.31E-01
3.93E+02 1.53E+02 7.81E+02 1.91E+03 5.33E+02 1.45E+03 5.48E+03
6.6 6.00E-01
3.92E+02 1.52E+02 7.03E+02 1.82E+03 4.80E+02 1.32E+03 5.46E+03
6.7 5.74E-01
3.90E+02 1.50E+02 6.40E+02 1.71E+03 4.29E+02 1.21E+03 5.45E+03
6.8 5.55E-01
3.88E+02 1.47E+02 5.92E+02 1.60E+03 3.81E+02 1.12E+03 5.44E+03
6.9 5.39E-01
3.86E+02 1.45E+02 5.52E+02 1.47E+03 3.38E+02 1.05E+03 5.43E+03
7.0 5.28E-01
3.83E+02 1.41E+02 5.21E+02 1.34E+03 3.00E+02 9.96E+02 5.43E+03
7.1 5.18E-01
3.79E+02 1.38E+02 4.96E+02 1.21E+03 2.67E+02 9.52E+02 5.42E+03
7.2 5.10E-01
3.75E+02 1.33E+02 4.76E+02 1.07E+03 2.39E+02 9.18E+02 5.42E+03
| 7.3 | 5.04E-01
|
3.69E+02 | 1.28E+02 | 4.61E+02 | 9.43E+02 | 2.15E+02 | 8.90E+02 | 5.42E+03 |
3.62E+02 1.21E+02 4.47E+02 8.19E+02 1.95E+02 8.68E+02 5.41E+03
7.5 4.95E-01
3.54E+02 1.14E+02 4.37E+02 7.03E+02 1.78E+02 8.50E+02 5.41E+03
| 7.6 | 4.92E-01
|
3.44E+02 | 1.07E+02 | 4.29E+02 | 5.99E+02 | 1.64E+02 | 8.36E+02 | 5.41E+03 |
3.33E+02 9.84E+01 4.23E+02 5.07E+02 1.53E+02 8.25E+02 5.41E+03
7.8 4.86E-01
3.19E+02 8.97E+01 4.18E+02 4.26E+02 1.44E+02 8.17E+02 5.41E+03
| 7.9 | 4.85E-01
|
3.04E+02 | 8.07E+01 | 4.14E+02 | 3.57E+02 | 1.37E+02 | 8.10E+02 | 5.41E+03 |
2.86E+02 7.17E+01 4.10E+02 2.98E+02 1.31E+02 8.04E+02 5.41E+03
8.1 4.84E-01 2.67E+02 6.30E+01 4.09E+02 2.49E+02 1.26E+02 8.00E+02 5.40E+03
8.2 4.84E-01 2.46E+02 5.47E+01 4.07E+02 2.08E+02 1.22E+02 7.97E+02 5.40E+03
| 8.3 | 4.83E-01 | 2.24E+02 | 4.40E+01 | 4.05E+02 | 1.75E+02 | 1.19E+02 | 7.93E+02 | 5.40E+03 |
8.4 4.83E-01 2.02E+02 4.00E+01 4.04E+02 1.48E+02 1.17E+02 7.91E+02 5.40E+03
| 8.5 | 4.82E-01 | 1.80E+02 | 3.38E+01 | 4.03E+02 | 1.25E+02 | 1.15E+02 | 7.89E+02 | 5.40E+03 |
| 8.7 | 4.82E-01 | 1.37E+02 | 2.38E+01 | 4.02E+02 | 9.31E+02 | 1.12E+02 | 7.87E+02 | 5.40E+03 |
| 8.9 | 4.81E-01 | 1.00E+02 | 1.66E+01 | 4.01E+02 | 7.23E+01 | 1.10E+02 | 7.85E+02 | 5.40E+03 |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| pH As Ba Be Cd Cr (+3) Cr (+6) Hg Ni Ag Se Tl Zn Pb |
| 5.2 | 2.6E+01 | 1.5E+01 | 3.1E+01 | 2.1E+01 | 4.9E+03 | 2.9E+01 | 1.4E-01 | 2.2E+01 | 2.1E-01 | 1.5E+014.7E+012.1E+011.5E+01 |
| 5.6 | 2.6E+01 | 2.2E+01 | 4.7E+01 | 2.9E+01 | 3.5E+04 | 2.6E+01 | 6.9E-01 | 3.0E+01 | 5.3E-01 | 1.1E+015.2E+012.8E+011.5E+01 |
| 5.8 | 2.7E+01 | 2.6E+01 | 6.0E+01 | 3.3E+01 | 8.7E+04 | 2.5E+01 | 1.6E-00 | 3.4E+01 | 8.4E-01 | 9.8E+005.5E+013.2E+011.5E+01 |
| 6.3 | 2.8E+01 | 3.5E+01 | 1.6E+02 | 4.4E+01 | 5.8E+05 | 2.2E+01 | 1.1E+01 | 4.5E+01 | 2.7E+00 | 7.0E+006.2E+014.4E+011.5E+01 |
| 7.2 | 3.0E+01 | 4.4E+01 | 3.8E+03 | 2.0E+02 | 3.1E+06 | 1.7E+01 | 1.2E+02 | 1.4E+02 | 2.0E+01 | 3.8E+007.8E+019.5E+017.1E+02 |
| 7.5 | 3.0E+01 | 4.6E+01 | 1.3E+04 | 5.9E+02 | 3.9E+06 | 1.6E+01 | 1.6E+02 | 3.5E+02 | 3.9E+01 | 3.1E+008.5E+011.6E+027.1E+02 |
| 7.6 | 3.1E+01 | 4.6E+01 | 2.0E+04 | 8.7E+02 | 4.1E+06 | 1.5E+01 | 1.7E+02 | 4.9E+02 | 4.8E+01 | 2.9E+008.7E+011.9E+027.1E+02 |
| 8.0 | 3.1E+01 | 5.2E+01 | 1.0E+05 | 4.3E+03 | 4.3E+06 | 1.4E+01 | 2.0E+02 | 1.9E+03 | 1.1E+02 | 2.2E+009.6E+015.3E+027.1E+02 |
| 3.2E+01 ---a |
| 8.3 | 3.2E+01 | ---a | ---a | ---a | ---a | 1.3E+01 | ---a | ---a | ---a | 1.8E+001.0E+02---a7.1E+02 |
| 8.7 | 3.3E+01 | ---a | ---a | ---a | ---a | 1.2E+01 | ---a | ---a | ---a | 1.4E+001.2E+02---a7.1E+02 |
| 9.0 | 3.3E+01 | ---a | ---a | ---a | ---a | 1.0E+01 | ---a | ---a | ---a | 1.1E+001.2E+02---a1.9E+03 |
(Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007)
Soil Texturea
|
Saturated Hydraulic
Conductivity, Ks (m/yr) |
1/(2b+3)b
|
| Sand | 1,830 | 0.090 |
| Loamy Sand | 540 | 0.085 |
| Sandy Loam | 230 | 0.080 |
| Silt Loam | 120 | 0.074 |
| Loam | 60 | 0.073 |
| Sandy Clay Loam | 40 | 0.058 |
| Silt Clay Loam | 13 | 0.054 |
| Clay Loam | 20 | 0.050 |
| Sandy Clay | 10 | 0.042 |
| Silt Clay | 8 | 0.042 |
| Clay | 5 | 0.039 |
| b Where b is the soil-specific exponential parameter (unitless) | |
| (Source: Amended at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| 1. | The recitals set forth above are incorporated by reference as if fully set forth herein. |
| 2. | [Use this paragraph if IEMA has issued an incident number] The Illinois Emergency Management Agency has assigned incident number(s) to the Release(s). |
| 3. | Attached as Exhibit A is a scaled map(s) prepared by the [Owner/Operator or Property Owner] that shows the Site and surrounding area and delineates the current and estimated future extent of soil and groundwater contamination above the applicable Tier 1 residential remediation objectives as a result of the Release(s). [Use the following sentence if either soil or groundwater is not contaminated above applicable Tier 1 residential remediation objectives: [Soil] [Groundwater] is not contaminated above the applicable Tier 1 residential remediation objectives.] |
| 4. | Attached as Exhibit B is a table(s) prepared by the [Owner/Operator or Property Owner] that lists each contaminant of concern that exceeds its Tier 1 residential remediation objective, its Tier 1 residential remediation objective and its concentrations within the zone where Tier 1 residential remediation objectives are exceeded. The locations of the concentrations listed in Exhibit B are identified on the map(s) in Exhibit A. |
| 5. | Attached as Exhibit C is a scaled map prepared by the [Owner/Operator or Property Owner] showing the area of the Highway Authority’s right-of-way that is governed by this agreement (“Right-of-Way”). Because Exhibit C is not a surveyed plat, the Right-of-Way boundary may be an approximation of the actual Right-of-Way lines. |
| 6. | [Use this paragraph if samples have not been collected within the Right-of-Way, sampling within the Right-of-Way is not practical, and contamination does not extend beyond the Right-of-Way]. Because the collection of samples within the Right-of-Way is not practical, the Parties stipulate that, based on modeling, soil and groundwater contamination exceeding Tier 1 residential remediation objectives does not and will not extend beyond the boundaries of the Right-of-Way. |
| 7. | The Highway Authority stipulates it has jurisdiction over the Right-of-Way that gives it sole control over the use of the groundwater and access to the soil located within or beneath the Right-of-Way. |
| 8. | The Highway Authority agrees to prohibit within the Right-of-Way all potable and domestic uses of groundwater exceeding Tier 1 residential remediation objectives. |
| 9. | The Highway Authority further agrees to limit access by itself and others to soil within the Right-of-Way exceeding Tier 1 residential remediation objectives. Access shall be allowed only if human health (including worker safety) and the environment are protected during and after any access. The Highway Authority may construct, reconstruct, improve, repair, maintain and operate a highway upon the Right-of-Way, or allow others to do the same by permit. In addition, the Highway Authority and others using or working in the Right-of-Way under permit have the right to remove soil or groundwater from the Right-of-Way and dispose of the same in accordance with applicable environmental laws and regulations. The Highway Authority agrees to issue all permits for work in the Right-of-Way, and make all existing permits for work in the Right-of-Way, subject to the following or a substantially similar condition: |
| 1. | This agreement shall be referenced in the Agency’s no further remediation determination issued for the Release(s). |
| 2. | The Agency shall be notified of any transfer of jurisdiction over the Right-of-Way at least 30 days prior to the date the transfer takes effect. This agreement shall be null and void upon the transfer unless the transferee agrees to be bound by this agreement as if the transferee were an original party to this agreement. The transferee’s agreement to be bound by the terms of this agreement shall be memorialized at the time of transfer in a writing ("Rider") that references this Highway Authority Agreement and is signed by the Highway Authority, or subsequent transferor, and the transferee. |
| 3. | This agreement shall become effective on the date the Agency issues a no further remediation determination for the Release(s). It shall remain effective until the Right-of-Way is demonstrated to be suitable for unrestricted use and the Agency issues a new no further remediation determination to reflect there is no longer a need for this agreement, or until the agreement is otherwise terminated or voided. |
| 4. | In addition to any other remedies that may be available, the Agency may bring suit to enforce the terms of this agreement or may, in its sole discretion, declare this agreement null and void if any of the Parties or any transferee violates any term of this agreement. The Parties or transferee shall be notified in writing of any such declaration. |
| 5. | This agreement shall be null and void if a court of competent jurisdiction strikes down any part or provision of the agreement. |
| 6. | This agreement supersedes any prior written or oral agreements or understandings between the Parties on the subject matter addressed herein. It may be altered, modified or amended only upon the written consent and agreement of the Parties. |
| 7. | Any notices or other correspondence regarding this agreement shall be sent to the Parties at following addresses: |
| (Source: Added at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| 1. | The recitals set forth above are incorporated by reference as if fully set forth herein. |
| 2. | [Use this paragraph if IEMA has issued an incident number] The Illinois Emergency Management Agency has assigned incident number(s) to the Release(s). |
| 3. | Attached as Exhibit A is a scaled map(s) prepared by the Highway Authority that shows the Site and surrounding area and delineates the current and estimated future extent of soil and groundwater contamination above the applicable Tier 1 residential remediation objectives as a result of the Release(s). [Use the following sentence if either soil or groundwater is not contaminated above applicable Tier 1 residential remediation objectives: [Soil] [Groundwater] is not contaminated above the applicable Tier 1 residential remediation objectives.] |
| 4. | Attached as Exhibit B is a table(s) prepared by the Highway Authority that lists each contaminant of concern that exceeds its Tier 1 residential remediation objective, its Tier 1 residential remediation objective and its concentrations within the zone where Tier 1 residential remediation objectives are exceeded. The locations of the concentrations listed in Exhibit B are identified on the map(s) in Exhibit A. |
| 5. | Attached as Exhibit C is a scaled map prepared by the Highway Authority showing the area of the Highway Authority’s right-of-way that is governed by this agreement (“Right-of-Way”). Because Exhibit C is not a surveyed plat, the Right-of-Way boundary may be an approximation of the actual Right-of-Way lines. |
| 6. | [Use this paragraph if samples have not been collected within the Right-of-Way, sampling within the Right-of-Way is not practical, and contamination does not extend beyond the Right-of-Way]. Because the collection of samples within the Right-of-Way is not practical, the Parties stipulate that, based on modeling, soil and groundwater contamination exceeding Tier 1 residential remediation objectives does not and will not extend beyond the boundaries of the Right-of-Way. |
| 7. | The Highway Authority stipulates it has jurisdiction over the Right-of-Way that gives it sole control over the use of the groundwater and access to the soil located within or beneath the Right-of-Way. |
| 8. | The Highway Authority agrees to prohibit within the Right-of-Way all potable and domestic uses of groundwater exceeding Tier 1 residential remediation objectives. |
| 9. | The Highway Authority further agrees to limit access by itself and others to soil within the Right-of-Way exceeding Tier 1 residential remediation objectives. Access shall be allowed only if human health (including worker safety) and the environment are protected during and after any access. The Highway Authority may construct, reconstruct, improve, repair, maintain and operate a highway upon the Right-of-Way, or allow others to do the same by permit. In addition, the Highway Authority and others using or working in the Right-of-Way under permit have the right to remove soil or groundwater from the Right-of-Way and dispose of the same in accordance with applicable environmental laws and regulations. The Highway Authority agrees to issue all permits for work in the Right-of-Way, and make all existing permits for work in the Right-of-Way, subject to the following or a substantially similar condition: |
| 10. | This agreement shall be referenced in the Agency’s no further remediation determination issued for the Release(s). |
| 11. | The Agency shall be notified of any transfer of jurisdiction over the Right-of-Way at least 30 days prior to the date the transfer takes effect. This agreement shall be null and void upon the transfer unless the transferee agrees to be bound by this agreement as if the transferee were an original party to this agreement. The transferee’s agreement to be bound by the terms of this agreement shall be memorialized at the time of transfer in a writing ("Rider") that references this Highway Authority Memorandum of Agreement and is signed by the Highway Authority, or subsequent transferor, and the transferee. |
| 12. | This agreement shall become effective on the date the Agency issues a no further remediation determination for the Release(s). It shall remain effective until the Right-of-Way is demonstrated to be suitable for unrestricted use and the Agency issues a new no further remediation determination to reflect there is no longer a need for this agreement, or until the agreement is otherwise terminated or voided. |
| 13. | In addition to any other remedies that may be available, the Agency may bring suit to enforce the terms of this agreement or may, in its sole discretion, declare this agreement null and void if the Highway Authority or a transferee violates any term of this agreement. The Highway Authority or transferee shall be notified in writing of any such declaration. |
| 14. | This agreement shall be null and void if a court of competent jurisdiction strikes down any part or provision of the agreement. |
| 15. | This agreement supersedes any prior written or oral agreements or understandings between the Parties on the subject matter addressed herein. It may be altered, modified or amended only upon the written consent and agreement of the Parties. |
| 16. | Any notices or other correspondence regarding this agreement shall be sent to the Parties at following addresses: |
| (Source: Added at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| PREPARED BY: | |
| Name: | |
| Address: | |
| RETURN TO: | |
| Name: | |
| Address: | |
THE ABOVE SPACE FOR RECORDER’S OFFICE
| |
| Model Environmental Land Use Control | |
| THIS ENVIRONMENTAL LAND USE CONTROL (“ELUC”), is made this ________ day of _____________, 20__, by ________________________, (“Property Owner”) of the real property located at the common address____________________________________(“Property”). | |
By:
| |
| Its: | |
| Date: | |
| STATE OF ILLINOIS | |
| ) | |
| ) SS: | |
| COUNTY OF | |
| ) | |
| I, ____________________________the undersigned, a Notary Public for said County and State, DO HEREBY CERTIFY, that ___________________ and __________________, personally known to me to be the Property Owner(s) of __________________________, and personally known to me to be the same persons whose names are subscribed to the foregoing instrument, appeared before me this day in person and severally acknowledged that in said capacities they signed and delivered the said instrument as their free and voluntary act for the uses and purposes therein set forth. | |
| Given under my hand and official seal, this _____ day of ____________________, 20__. | |
| Notary Public | |
| The subject property is located in the City of ____________, __________ County, State of Illinois, commonly known as ______________________________, _________, Illinois and more particularly described as: | |||||||||||||||||||||||||||||
| LIST THE COMMON ADDRESS; | |||||||||||||||||||||||||||||
| LEGAL DESCRIPTION; AND | |||||||||||||||||||||||||||||
| REAL ESTATE TAX INDEX OR PARCEL # | |||||||||||||||||||||||||||||
| (PURSUANT TO SECTION 742. 1010(D)(2)) | |||||||||||||||||||||||||||||
| (A) | A scaled map showing the legal boundary of the property to which the ELUC applies. | |
| (B) | Scaled maps showing the horizontal and vertical extent of contaminants of concern above the applicable remediation objectives for soil and groundwater to which the ELUC applies. | |
| (C) | Scaled maps showing the physical features to which an ELUC applies (e.g., engineered barriers, monitoring wells, caps, etc.). | |
| (D) | Scaled maps showing the nature, location of the source, and direction of movement of the contaminants of concern. | |
| (Source: Added at 31 Ill. Reg. 4063, effective February 23, 2007) | |
| Section Four. | |
| Memorandum of Understanding. | |
| '[This Section is only necessary if ordinance does not expressly prohibit installation of potable water supply wells by the city or village--could be separate resolution] | |
| ADOPTED: _________________ | |
| APPROVED: ________________ | |
| (Date) | |
| (Date) | |
| ____________________________ | |
| ____________________________ | |
| (City Clerk) | |
| (Mayor) | |
(Source: Added at 31 Ill. Reg. 4063, effective February 23, 2007)
Section 742.APPENDIX H Memorandum of Understanding
MEMORANDUM OF UNDERSTANDING BETWEEN ___________________________ AND THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY REGARDING THE USE OF A LOCAL GROUNDWATER OR WATER WELL ORDINANCE AS AN ENVIRONMENTAL INSTITUTIONAL CONTROL
| I. | PURPOSE AND INTENT |
| A. | This Memorandum of Understanding (“MOU”) between _________________________ and the Illinois Environmental Protection Agency (“Illinois EPA”) is entered into for the purpose of satisfying the requirements of 35 Ill. Adm. Code 742.1015 for the use of groundwater or water well ordinances as environmental institutional controls. The Illinois EPA has reviewed the groundwater or water well ordinance of _______________________ (Attachment A) and determined that the ordinance prohibits the use of groundwater for potable purposes and/or the installation and use of new potable water supply wells by private entities but does not expressly prohibit those activities by the unit of local government itself. In such cases, 35 Ill. Adm. Code 742.1015(a) provides that the unit of local government may enter into an MOU with the Illinois EPA to allow the use of the ordinance as an institutional control. |
| B. | The intent of this Memorandum of Understanding is to specify the responsibilities that must be assumed by the unit of local government to satisfy the requirements for MOUs as set forth at 35 Ill. Adm. Code 742.1015(i). |
| II. | DECLARATIONS AND ASSUMPTION OF RESPONSIBILITY |
| A. | ________________________ will notify the Illinois EPA Bureau of Land of any proposed ordinance changes or requests for variance at least 30 days prior to the date the local government is scheduled to take action on the proposed change or request (35 Ill. Adm. Code 742.1015(i)(4)); |
| B. | _________________________ will maintain a registry of all sites within its corporate limits that have received “No Further Remediation” determinations in reliance on the ordinance from the Illinois EPA (35 Ill. Adm. Code 742.1015(i)(5)); |
| C. | _________________________ will review the registry of sites established under paragraph II. B. prior to siting public potable water supply wells within the area covered by the ordinance (35 Ill. Adm. Code 742.1015(i)(6)(A)); |
| D. | _________________________ will determine whether the potential source of potable water has been or may be affected by contamination left in place at the sites tracked and reviewed under paragraphs II. B. and C. (35 Ill. Adm. Code 742.1015(i)(6)(B)); and |
| E. | _________________________ will take action as necessary to ensure that the potential source of potable water is protected from contamination or treated before it is used as a potable water supply (35 Ill. Adm. Code 742.1015(i)(6)(C)). |
| III. | SUPPORTING DOCUMENTATION |
| A. | Attachment A: A copy of the groundwater or water well ordinance certified by the city clerk or other official as the current, controlling law (35 Ill. Adm. Code 742.1015(i)(3)); |
| B. | Attachment B: Identification of the legal boundaries within which the ordinance is applicable (certification by city clerk or other official that the ordinance is applicable everywhere within the corporate limits; if ordinance is not applicable throughout the entire city or village, legal description and map of area showing sufficient detail to determine where ordinance is applicable) (35 Ill. Adm. Code 742.1015(i)(2)); |
| C. | Attachment C: A statement of the authority of the unit of local government to enter into the MOU (council resolution, code of ordinances, inherent powers of mayor or other official signing MOU -- attach copies) (35 Ill. Adm. Code 742.1015(i)(1)). |
| BY: ___________________________________________ | DATE: _____________ | ||||||||
| BY: ____________________________________________ | DATE: _____________ | ||||||||
| (Source: Added at 31 Ill. Reg. 4063, effective February 23, 2007) |
