1. SUBPART B: REPORTING

ILLINOIS POLLUTION CONTROL BOARD
May 1, 2008
IN THE MATTER OF:
PROCEDURES REQUIRED BY P. A. 94-849
FOR REPORTING RELEASES OF
RADIONUCLIDES AT NUCLEAR POWER
PLANTS: NEW 35 Ill. Adm. Code 1010
)
)
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R07-20
(Rulemaking - Water)
Adopted Rule. Final Notice.
OPINION AND ORDER OF THE BOARD (by G.T. Girard):
Pursuant to P.A. 94-849, the Illinois Environmental Protection Agency (Agency)
proposed rules for prescribing standards for detecting and reporting unpermitted releases of
radionuclides from nuclear power plants. The Board has held two hearings and accepted
comments on the proposal. On December 6, 2007, the Board proposed for first notice the rule as
proposed by the Agency, with only minor changes. The rule was published in the
Illinois
Register
on December 21, 2007.
See
31 Ill. Reg. 16685 (Dec. 21, 2007). The Board received no
additional comment and held no additional hearings during first notice. On March 6, 2008, the
Board filed the rule for second notice with the Joint Committee on Administrative Rules (JCAR).
JCAR voted a certificate of no objection on April 15, 2008, and suggested no changes.
Therefore, the Board will adopt the rule for final notice today.
The Board’s opinion opens with procedural history, background, and a summary of the
rule. Next, the Board summarizes the testimony and comments in the record. Finally, the Board
will discuss the reasons for adopting the rule for final notice.
PROCEDURAL HISTORY
On May 25, 2007, the Agency filed a proposal as required by Section 13.6(e) of the
Environmental Protection Act (Act) (415 ILCS 5/13.6(e) (2006)). The proposal included a 10-
page statement of reasons (Reasons). On June 21, 2007, the Board accepted the rulemaking for
hearing.
On July 13, 2007, in accordance with Section 27(b) of the Act (415 ILCS 5/27(b)
(2006)), the Board requested that the Department of Commerce and Economic Opportunity
(DCEO) conduct an economic impact study for this rulemaking. On August 7, 2007, the Board
was informed that the DCEO had decided not to conduct an economic impact study for this
rulemaking. At the public hearing held on October 10, 2007 (Tr.2), the Board solicited
comments on DCEO’s decision not to conduct an economic impact study. No comments were
offered. Tr.2 at 5-6.
On August 24, 2007, the Board has received pre-filed testimony from Zigmund Karpa on
behalf of Exelon Nuclear (Exelon) (Exh. 3) and Richard Cobb on behalf of the Agency (Exh. 1).

2
The Board held two hearings in this proceeding before Hearing Officer Marie Tipsord. The first
hearing was held on September 5, 2007, in Chicago (Tr.1) and the second October 10, 2007, in
Springfield (Tr.2). At those hearings the Board heard testimony from:
Kyle Rominger and Richard Cobb on behalf of the Agency;
Zigmund Karpa on behalf of Exelon.
At the close of hearings a November 1, 2007 deadline for public comments to be filed was set.
The Board has received two public comments in this matter, both from the Agency (PC 1, PC 2).
On December 6, 2007, the Board adopted the rule for first notice. The proposed rule was
published in the
Illinois Register
on December 21, 2007. The Board received no additional
public comment and no requests for additional hearings. Therefore, on March 6, 2008, the Board
proceeded to second notice and filed the rule with JCAR. JCAR issued a certificate of no
objection on April 15, 2008, and suggested no changes to the rule.
BACKGROUND
The Agency submitted this proposed rulemaking pursuant to P.A. 94-849 that added
Section 13.6 to the Act (415 ILCS 5/13.6 (2006)). Reasons at 1. Section 13.6 required the
Agency, in consultation with the Illinois Emergency Management Agency (IEMA), to “propose
rules to the Board prescribing standards for detecting and reporting unpermitted releases of
radionuclides.” 415 ILCS 5/13.6(e) (2006). Section 13.6 further requires “the detection and
reporting of unpermitted releases of any radionuclides into the groundwater, surface water, or
soil at nuclear power plants, to the extent that federal law or regulation does not preempt such
requirements.” 415 ILCS 5/13.6(a) (2006). Section 13.6 requires that “[w]ithin 24 hours after
an unpermitted release of a radionuclide from a nuclear power plant, the owner or operator of the
nuclear power plant where the release occurred shall report the release to the Agency and the
Illinois Emergency Management Agency.” 415 ILCS 5/13.6(c) (2006).
Section 13.6 was added to the Act following a series of leaks of tritiated water at the
Braidwood Nuclear Power Station (Braidwood Station) in Will County, Illinois. Reasons at 2.
The tritium leaks resulted in groundwater contamination and impacted a nearby residential well.
Id
. A number of other nuclear power plants had also experienced tritium leaks, which resulted in
groundwater contamination.
Id
.
The Agency consulted with the Interagency Coordinating Committee on Groundwater
(ICCG), the Groundwater Advisory Committee (GAC), and IEMA following the passage of P.A.
94-849 in order to develop these rules. Reasons at 3. The Agency also worked with Exelon
Corporation (Exelon) while developing the proposed rules.
Id
. Exelon owns and operates all of
the nuclear power plants in Illinois, either itself or through related entities.
Id
. The Agency also
considered feedback on the proposed rules from the GAC-hosted stakeholder outreach meeting,
to which state and federal legislators, representatives of local government, representatives of
IEMA, the Nuclear Regulatory Commission (NRC), Exelon, the American Medical Association,
and nuclear and environmental interest groups were invited. Reasons at 3-4.

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SUMMARY OF THE RULE
The rule includes procedures for reporting releases of radionuclides at nuclear power
plants. The procedures will allow licensees of power plants to fulfill their obligation under
Section 13.6 of the Act (415 ILCS 5/13.6 (2006)) to report unpermitted releases of radionuclides
to the Agency and Illinois Emergency Management Agency (IEMA). These procedures
establish a requirement that within 24 hours of any unpermitted release of radionuclides into the
groundwater, surface water, or soil, the licensee must evaluate the release to determine whether it
needs to be reported and, if reporting is necessary, make a report to the Agency and IEMA
within that same 24 hours.
See
Section 1010.200. The rule gives the proper procedure for
reporting the releases, including the appropriate reporting phone numbers for the Agency and
IEMA as well as instructions on electronic reporting.
See
Section 1010.202. The rule further
requires a follow-up written report be sent to the Agency and IEMA within five days after
reporting the release.
See
Section 1010.204. This follow-up report must contain the information
required for the initial report as well as supplemental information on the release utilizing the best
data available.
Id
.
Under the rules, a radionuclide is deemed to have been detected if an unpermitted release
of liquids either: 1) results in tritium concentrations of 200 picocuries per liter (pCi/L) or more
outside the licensee controlled area, or 2) contains tritium at quantities of 0.002 Curies (Ci) or
more. PC 2 at 2.
Tritium is a radionuclide that is a natural byproduct of electricity production in nuclear
power plants. Exh. 1 at 3. Tritium is also naturally produced in the atmosphere when cosmic
rays collide with air molecules.
Id
. Naturally occurring tritium is found in trace amounts in
groundwater worldwide.
Id
.
Based upon information from the Braidwood station, the background level for tritium is
35 pCi/L. However, in commercial, State, and private laboratories (other than research
laboratories), the lowest amount of tritium that can be practically detected is 200 pCi/L. That is
why the reporting levels for this rule are 200 pCi/L. PC 2 at 3. The quantity of 0.002 Ci as
another reporting requirement is a practical level. Exelon’s staff is familiar with this level and it
can be determined without analytical testing. PC 2 at 4. Releases of quantities of less than 0.002
Ci are not expected to result in concentrations of 200 pCi/L of tritium or more outside the
licensee controlled area.
Id
.
These provisions of the rules are uniform across all contaminant sources and all
geographic areas within the State. PC 2 at 4. These provisions do not apply outside Illinois, nor
do they make special provision for alert and abatement standards and procedures respecting
occurrences, emergencies of pollution or other short-term conditions constituting an acute danger
to health or the environment, or regulations specific to individual persons or sites. PC 2 at 4-5.
SUMMARY OF TESTIMONY
Below the Board will summarize the testimony from the hearings in this proceeding. The
Board will first summarize the Agency’s testimony and then Exelon’s testimony.

4
Agency Testimony
The Board will summarize the testimony of the Agency’s primary witness, Richard Cobb.
Then the Board will summarize the testimony of Kyle Rominger.
Richard Cobb
Mr. Cobb’s testimony spoke to the purpose and background of the regulations, a
summary of the releases that lead to the new regulations, as well as explaining each section of
the proposed regulations in turn. The following paragraphs will summarize each section of his
testimony.
Purpose of the Rulemaking.
According to Mr. Cobb, the purpose of the Agency’s
proposed regulations is to establish requirements for the owners and operators of nuclear power
generating facilities to fulfill their obligation under Section 13.6 of the Act (415 ILCS 5/13.6
(2006)) for reporting releases of radionuclides to soil, groundwater, or surface water to the
Agency and IEMA. Exh. 1 at 1. Mr. Cobb also testified that the purpose of “this regulation is
not to set standards for radionuclide releases, but to merely establish requirements for reporting a
release of radionuclides.”
Id
.
Background.
Mr. Cobb stated that these proposed regulations can be traced back to
three groundwater contamination incidents at the Exelon nuclear power generating facilities
located in: Dresden, Grundy County; Braidwood, Will County; and Byron, Ogle County. Exh. 1
at 2. The contamination at Dresden resulted from numerous leaks from underground piping,
which contaminated the groundwater with tritium. Exh. 1 at 3. At Braidwood, water mixed with
tritium was released from a vacuum breaker, through a blowdown line, and into the Kankakee
River. Exh. 1 at 2. The Byron contamination involved internal inspections at the plant, which
reported standing water containing tritium that was found in six concrete vacuum breaker vaults
in the ground that are part of the blowdown line running to the Rock River. Exh. 1 at 7. Though
Exelon monitoring wells showed tritium, independent testing of drinking water wells at nine
homes closest to the property line showed no signs of tritium.
Id
.
Summary of Releases.
The release at Braidwood station involved approximately three
million gallons of tritiated wastewater released from a blowdown line in 1998, causing a
groundwater contamination plume. Exh. 1 at 3. The release at the Braidwood Station reached as
high as 20,000 pCi/L.
Id
. Mr. Cobb states that the background concentration of tritium at
Braidwood was found at 35 pCi/L using an enriched tritium testing method to test the waters in a
cooling water pond on site. Exh. 1 at 4. However, Mr. Cobb testified that enriched tritium tests
are primarily used only in research laboratories due to their costs and technical requirements.
Id
.
Mr. Cobb further testified that 200 pCi/L is the practical qualification limit (PQL) for tritium, the
lowest concentration or level that can be reliably measured with 95 percent confidence in the
value.
Id
. Mr. Cobb also testified that the Agency believes the use of 200 pCi/L is a more
appropriate standard to use for reporting releases, because Exelon, IEMA’s Division of Nuclear
Safety, and other commercial laboratories can readily perform testing to this level.
Id
.

5
The unpermitted release of tritiated water from the Dresden station in 2004 was
discovered when concentrations of tritium in the range of 3,000,000 to 6,000,000 pCi/L were
detected in monitoring wells that had been installed following a previous release in 1994. Exh. 1
at 5. Mr. Cobb testified that according to Exelon officials, the highest concentration of tritium
found on the site was 20,000,000 pCi/L.
Id
. According to Mr. Cobb, Exelon investigations
found that the tritium contamination originated from a release in a condensate storage tank
system through a pipe that passed under a liquid nitrogen tank.
Id
.
Agency’s Proposed Rule.
The following paragraphs will summarize Mr. Cobb’s
testimony in support of the specific rule language proposed by the Agency.
Section 1010.200 Evaluation of Releases.
Mr. Cobb testified that Section 1010.200
contains the key thresholds for detecting and reporting releases of tritium that may cause,
threaten, or allow degradation of surface or groundwater resources beyond the licensees’
boundary area. Exh. 1 at 7. The proposed off-site reporting threshold for tritium is based on the
PQL of 200 pCi/L. According to Mr. Cobb, this measure is used in the existing Board’s
preventative notice and response provisions of 35 Ill. Adm. Code 620.305 and 620.310 and is a
measure reasonably achieved in commercial, State, and private laboratories. Exh. 1 at 8. Mr.
Cobb further testified that the Agency and Exelon are in agreement with this threshold.
Id
. Mr.
Cobb also stated that tritium is being used for reporting because it is the only radionuclide being
found.
Id
.
Mr. Cobb went on to testify that a level of 0.002 Ci of tritium is the suggested level for
on-site reporting. Exh. 1 at 8. Releases of quantities of less than 0.002 Ci are not expected to
result in concentrations of 200 pCi/L of tritium or more outside the licensee controlled area,
making it a quality indicator of when reporting is necessary.
Id
. According to Mr. Cobb, the
Exelon staff is familiar with this measure and can report it rapidly upon occurrence rather than
waiting for analytical tests.
Id
. Mr. Cobb explained that in determining whether a 0.002 Ci on-
site standard would be sufficiently conservative to predict if 200 pCi/L would be exceeded
beyond the licensee controlled area, a groundwater fate and transport model was used
(BIOSCREEN
see infra
6).
Groundwater Principles.
Mr. Cobb testified that water entering the soil may evaporate,
or be used by plants and transpired. Exh. 1 at 9. The rest of the water travels down through pore
spaces until reaching the “water table,” which is the zone where all pore spaces are filled.
Id
.
The height of the water table is determined by measuring the elevation of water in wells that are
dug into the saturated zone.
Id
. Usually, the surface of the water table will rise and fall along
with the overlying land surface, but in a more subtle and smoother fashion.
Id
. The water table
can intersect with the ground surface in certain places creating lakes, perennial streams, and
springs, which are natural areas of groundwater discharge.
Id
. Mr. Cobb further explained that
while gravity makes surface water move downhill, groundwater moves downhill from areas of
higher potential energy to areas of lower potential energy, moving toward areas that are less
filled with water.
Id
.
The area where infiltration occurs is called a recharge zone and the area where
groundwater discharges into streams or lakes is called the discharge zone. Exh. 1 at 9.

6
According to Mr. Cobb, groundwater movement can be estimated using a map that shows the
elevations of the water levels in observation wells. Generally, the water flow will run
perpendicularly to the contours of the map.
Id
. The rate of groundwater movement is related to
the permeability of the aquifer and the slope of the potentiometric surface.
Id
.
When measuring groundwater flow, “hydraulic conductivity” is used instead of
permeability and is a function of the size and shape of pore spaces, the degree of interconnection
of the spaces, and the type of fluid passing through the medium. Exh. 1 at 9. As a water-soluble
contaminate migrates hydrolically through a groundwater field, its concentration will tend to
decline progressively due to dilution, retardation and transformation. Exh. 1 at 11. With a
release of tritium, mixture with uncontaminated groundwater will dilute the tritium contaminated
water as it moves along.
Id
.
Modeling Approach.
Mr. Cobb testified regarding the modeling approach that the
Agency used to determine whether a 0.002 Ci on-site standard would be sufficiently conservative
to predict if 200 pCi/L would be exceeded beyond the licensee controlled area. Mr. Cobb stated
that first a hypothetical source of tritium contamination was identified for each site, representing
a nuclear generating station. Exh. 1 at 11. The BIOSCREEN modeling system was then used to
determine whether a 0.002 Ci on-site standard would be sufficiently conservative to predict if
200 pCi/L would be exceeded beyond the licensee controlled area. Exh. 1 at 12. Mr. Cobb also
testified that the models used represented “conservative” or “reasonable worst case” scenarios.
Exh. 1 at 13. Mr. Cobb identified three basic objectives in this modeling approach:
1)
Determine if a release of 0.002 Ci of tritium from a representative source
at a nuclear generating station would migrate off-site;
2)
Predict the migration of the tritium in groundwater with respect to the
licensee controlled area, and with respect to adjacent properties and water
bodies; and
3)
Use the modeling results to calculate leakage rates and associated
concentrations (e.g., 0.71 gallons per minute and 17,248 pCi/L) to
determine if they are realistic.
Id
.
The modeling scenario, according to Mr. Cobb, assumed that a release of tritiated water
would occur most commonly in buried pipes and would be discovered within 30 days. Exh. 1 at
13. 30 days was used because, according to Mr. Cobb, with Exelon’s monthly integrity tests of
underground piping and blown down lines as well as real time moisture sensors in VB vaults, no
leak should go undetected for more than 30 days. Exh. 1 at 14.
Mr. Cobb explained that this system was used to model a contamination at the Braidwood
station using a hypothetical release of 30,633 gallons of tritiated water, which equals a
concentration of 17,248 pCi/L for 30 days. Exh. 1 at 14. The simulation showed that the plume
would move approximately 595 feet in 237 days and the concentration of tritium in the water
would be reduced to 200 pCi/L at that distance via dispersion. Exh. 1 at 15. Braidwood was
used as the example because, as Mr. Cobb testified, the Agency knows how Braidwood’s

7
hydrogeologic susceptibility varies as compared to the other Exelon facilities and so it can be
useful as a reference point. Exh. 1 at 16. According to Mr. Cobb, this information is helpful to
the Agency because it shows that with an estimated mass of tritium being released from an
underground pipeline or waste water conveyance, in a setting more or less susceptible than
Braidwood, the Agency can know what the potential fate and transport will be at distances more
than or less than 595 feet.
Id
.
Mr. Cobb concluded his explanation of the modeling approach by explaining that the
modeling results, combined with knowledge regarding Exelon’s stations show that 0.002 Ci is a
conservative reporting threshold for on-site releases of tritiated water. Mr. Cobb further
explained that Exelon’s detection monitoring program will act as a backup to the occurrence
based detection on site. Exh. 1 at 17.
Section 1010.202 Reporting Releases.
According to Mr. Cobb, this Section controls the
form and format of how releases must be reported to the Agency and IEMA. Exh. 1 at 17. Mr.
Cobb testified that the Agency duty officers and first responders have established communication
protocol with IEMA and the State Emergency Operations Center, which uses cellular phones,
satellite technology through smart phones, and other wireless devices. Exh. 1 at 17-18.
Section 1010.204 Follow-up Written Report.
This section requires a follow-up written
report to the initial rapid response report. Exh. 1 at 17-18. This report will clarify and
supplement information in the rapid response report, granting greater information to the public
and providing a practical bridge to the Right-to-Know provisions of the Act (415 ILCS 5/25(d)
(2006)), and the Board’s Community Relations Activities Performed in Conjunction with
Agency Notices of Threats from Contamination (35 Ill. Adm. Code 1600).
Id
.
Response to Questions.
When asked how Exelon will find out if there has been a
release and how they will go about the detection and reporting process, Mr. Cobb testified that
there is a visual inspection that is done of blowdown lines or other areas where releases have
occurred in the past. Tr.1 at 15. The Agency along with IEMA, and the Department of Nuclear
Safety Inspectors are conducting quarterly inspections to assure that the proper inspections are
being done on site. Tr.1 at 15-16. There is also 24 hour a day on-site personnel from IEMA and
the NRC. Tr.1 at 16. Mr. Cobb further testified that the real time sensors for detecting moisture
in vacuum breakers as well as a complex set of groundwater monitors act as backups to the
visual monitoring. Tr.1 at 17. If releases are detected through these systems, an alarm will be
triggered so staff will know to go inspect the situation.
Id
.
Mr. Cobb went on to state that calculations of releases by on-site inspectors can be done
because the inspectors generally know the pCi/L concentrations because they have the NRC
permit that regulates the concentration and the inspectors have been trained to be “pretty
accurate” concerning the number of gallons released. Tr.1 at 19. So when a release is detected,
the inspector can visually estimate the number of gallons released and calculate the amount of
tritium released according to the pCi/L concentrations in the NRC permit.
Id
.
When asked whether the rule language should include a distinct subpart or section
addressing the detection of releases, Mr. Cobb testified that the detecting portion is included in

8
the evaluation of releases. Tr.1 at 12. According to Mr. Cobb, ongoing monitoring programs are
beyond the scope of Section 13.6 of the Act (415 ILCS 5/13.6 (2006)). Tr.1 at 13. Mr. Cobb
believes that the rules are clear that the detection is built into the evaluation process.
Id
. Mr.
Cobb also pointed out that analytical methods for detection are already present in Part 611.101 of
the Board’s regulations and are incorporated by reference in 35 Ill. Adm. Code 620, the
Groundwater Quality Standards.
Id
. Mr. Cobb testified that by estimating the mass and
calculating a concentration in pCi/L immediately without waiting for a laboratory to do the work,
this detection method will be more preventative in nature than a method which relies on
gathering samples and sending them to a laboratory. Tr.1 at 14.
Mr. Cobb testified that the Agency’s position is that the monitoring requirements should
not be in the rules because the monitoring programs that are in place coupled with the inspection
programs are all that is needed. Tr.1 at 22-23. Mr. Cobb then again emphasized that the
groundwater monitoring system that is in place is only a back up to the visual inspection and
monitoring program that is ongoing. Tr.1 at 25. Mr. Cobb also testified that the inspection
process is something that is already in place under 35 Ill. Adm. Code 309. The Agency already
had authority to inspect the wastewater conveyances, under Part 309, and now the Agency is
teaming up with IEMA to do a dual inspection. Tr.1 at 30.
Mr. Cobb further testified that underground piping and other areas that have leaked in the
past have been analyzed by the Fleetwood studies, so there are more detection devices in places
where you might expect possible leaks. Tr.1 at 21-22. According to Mr. Cobb, underground
piping, blowdown lines, and VB vaults are the primary areas for monitoring and all of these
areas will be monitored under the integrated testing. Tr.1 at 22.
Mr. Cobb was asked whether concentrations of radionuclides in a blowdown which are
greater than the concentration allowed by the NPDES permit but are permitted by the NRC are
considered unpermitted releases. Tr.1 at 31. Mr. Cobb testified that the wastewater constituents
in the wastewater/tritium mixture have their own NPDES limits while the tritium is diluted to
meet the NRC limits.
Id
. The wastewater constituents are regulated by the state NPDES permit,
but the tritium is regulated by the NRC only. Tr.1 at 32.
Mr. Cobb stated that the primary thing the Agency was looking at in protecting
groundwater was the beneficial use of the groundwater resource. Tr.1 at 33-34. Mr. Cobb
testified that a private well owner was the lowest common denominator in examining how to
protect the groundwater for beneficial use by not causing, threatening, or allowing a release of a
contaminant that is not removed by ordinary treatment techniques under the Board’s
Groundwater Quality Standards. Tr.1 at 34. Mr. Cobb went on to testify that he does not believe
any radionuclide, other than tritium, will function as an indicator of release because the other
radionuclides are removed via reverse osmosis and other technology. Tr.1 at 36. When asked
what types of remedial actions are typically seen with these types of releases, Mr. Cobb
explained that all remedial actions are different based upon the site hydrology and concentration.
Tr.1 at 36-37.
Mr. Cobb also testified that the proposed sections 1010.202(c) and 1010.204(c), requiring
the Agency to post the reports concerning a release that causes, threatens, or allows an

9
exceedance of the standards on its website were a good idea in parallel with the Right-to-Know
provision of the Act (415 ILCS 5/25(d) (2006)). Tr.1 at 42. Mr. Cobb also stated that every site
center generated notice or well centric generated notice is published on the Agency’s Right-To-
Know website.
Id
.
When questioned on whether posting of reports and other information on the Agency’s
website would compromise security at the Exelon facilities, Mr. Cobb stated that any security
sensitive information would have been redacted before posting. Tr.1 at 43.
Kyle Rominger
Mr. Rominger testified that while creating the reporting forms, the Agency found that
they wished to make a change in Section 1010.204. Tr.2 at 7. The changes to the proposed rule
would require a copy of the follow-up report be sent to IEMA and would therefore also insert
IEMA address where the copy should be sent.
Id
. According to Mr. Rominger, the changes
would also require the follow-up report to be submitted in both hard copy form and
electronically. Tr.2 at 7-8. Mr. Rominger stated that the hard copy would get an additional five
days to be submitted under this new proposal to avoid any issues with timeliness. Tr.2 at 8.
Exelon Testimony
Zigmund Karpa
Mr. Karpa testified that NRC establishes the regulations and guides for the construction
and operation of nuclear reactors. Exh. 3. at 3. Mr. Karpa further explained that utilities
licensed by the NRC are responsible for designing, constructing, testing, and operating their
facilities safely.
Id
. NRC regulations establish protection standards for nuclear facilities,
including standards for the protection of members of the public.
Id
. Mr. Karpa went on to point
out that 10 C.F.R. §20 requires that radioactive materials released from a facility must not cause
the radioactive dose received by members of the public to exceed specified levels, as a result of
the release.
Id
. These levels are meant to protect public health and wellbeing. Mr. Karpa stated
that usually the release is a planned release and is done according to the established procedures
of the facility. Exh. 3. at 4. Mr. Karpa further testified that plant inspectors first verify that the
release will not exceed the dose limitations imposed by the NRC regulations.
Id
. Also, a pre-
release permit is issued for these releases, and the releases are monitored to confirm that they
actually conform to the prerelease plan.
Id
.
Agency’s Proposed Rules.
Mr. Karpa testified that Exelon will not object to Agency’s
proposed rules as currently written and offers no changes to the proposed rules. Exh. 3. at 4.
Mr. Karpa further testified that since the proposed rules only apply to reporting of unpermitted
releases of radionuclides under Section 13.6 of the Act, the vast majority of releases from Exelon
facilities would not be governed by the rule. Exh. 3. at 4-5. The majority of releases from
Exelon are controlled releases done under Exelon’s NRC license.
Id
. Mr. Karpa went on to
testify that Exelon anticipates that it will use the Section 1010.104 provision, which expressly
provides that the rules do not prevent or preclude reporting of radionuclides that are not required

10
to be reported under section 13.6 of the Act (415 ILCS 5/13.6 (2006)), to voluntarily report
releases that are not governed by these rules.
Id
.
Mr. Karpa testified that in the event of a release at an Exelon station that cannot be
quantified for any reason, the release will be reported within the 24-hour notification process and
will be clarified with a report under Section 13.6 of the Act (415 ILCS 5/13.6 (2006)). Tr.1 at
45. When asked about Exelon’s security concerns regarding the reports, Mr. Karpa testified that
there may be areas of the plants that are confidential and those reports would be submitted
indicating that there is sensitive information either by NRC or US computer requirements. Tr.1
at 46. Mr. Karpa also stated that they have filed such reports in the past when submitting
Exelon’s hydrogeologic investigations for each site.
Id
.
Mr. Karpa, when addressing the economic reasonableness of the proposed rule, stated
that nothing that Exelon is doing outside of their self-imposed groundwater or industry imposed
groundwater monitoring programs, would result in additional costs for Exelon at this point. Tr.1
at 48. Mr. Karpa testified that frequent inspections are already being conducted at the Exelon
facilities and the only other costs will be in providing information to IEMA and Agency when
they conduct their quarterly inspections, so the costs would be reasonable. Tr.1 at 49.
Mr. Karpa commented that, with regard to Mr. Cobb’s pre-filed testimony, Exelon does
not believe that calculating background using a single sample is necessary. Tr.2 at 9. Mr. Karpa
believes that the background calculation should be done using a much more scientific evaluation.
Id
.
DISCUSSION
Section 13.6 of the Act (415 ILCS 5/13.6 (2006)) was enacted by P.A. 94-849 and
amended by P.A. 95-066 (eff. Aug. 13, 2007). Section 13.6 regulates the release of
radionuclides and requires detection and reporting of unpermitted releases. 415 ILCS 5/13.6(a)
(2006). Unpermitted releases must be reported to the Agency and IEMA within 24 hours. 415
ILCS 5/13.6(b) (2006). Under Section 13.6, the Agency was required to propose rules to the
Board prescribing standards for detecting and reporting of unpermitted releases. The Agency
fulfilled the statutory obligation by proposing these rules to the Board. In addition, Section 13.6
of the Act (415 ILCS 5/13.6 (2006)) requires the Board to adopt the rules within one year of the
Agency’s proposal being filed. The Board proceeds to final notice today to ensure the timely
adoption of the rules.
Section 27 of the Act (415 ILCS 5/27 (2006)) provides, in part that:
the Board shall take into account the existing physical conditions, the character of
the area involved, including the character of the surrounding land uses, zoning
classification, the nature of the exiting air quality, or receiving body of water, as
the case may be, and the technical feasibility and economic reasonableness of
measuring or reducing the particular type of pollution. 415 ILCS 5/27(a) (2006).

11
Although only one corporation is impacted by these rules, the rules apply statewide and will
apply to any successor corporation. Therefore, the rules are of general applicability and the
Board must determine whether the rules are technically feasible and economically reasonable.
At first notice, the Board determined that the inspection and detection procedures show
that the technical aspects of this proposed rule are already in place and that the detection devices
and employee training are already being utilized in the Exelon facilities. Thus, the Board found
that there would be no additional technological burden placed upon nuclear energy providers
through this rule. The Board further found that the inspections already performed at the facilities
assist in detecting unpermitted releases in a timely manner, which will be protective of the
environment and human health.
The Board found at first notice that based on the record before the Board, the rules are
economically reasonable and technically feasible. In addition, the Board found that the proposed
rules are protective of the environment and human health. As stated previously, the Board
received no additional public comment on this rulemaking during first notice. The Board
therefore found that proceeding to second notice with the rule as proposed at first notice was
warranted and the Board adopted the rule for second notice.
On April 15, 2008, JCAR voted to issue a certificate of no objection to the proposed
rules. JCAR did not make any suggestions for changes to the rule. Therefore, the rule adopted
by the Board is identical to the rule as proposed for second notice.
CONCLUSION
Based on the record before the Board, the Board finds that the rules are economically
reasonable and technically feasible. The Board also finds that the proposed rules will be
protective of the environment and human health. Therefore, the Board finds that the record
supports proceeding to final notice with these rules.
ORDER
The Board directs the Clerk to cause the publication of the following rule for final notice
in the
Illinois Register
.
TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE I: ATOMIC RADIATION
CHAPTER I: POLLUTION CONTROL BOARD
PART 1010
PROCEDURES FOR REPORTING RELEASES OF RADIONUCLIDES AT NUCLEAR
POWER PLANTS
SUBPART A: GENERAL PROVISIONS
Section

12
1010.100
Purpose
1010.102
Applicability
1010.104
Scope
1010.106
Definitions
1010.108
Severability
SUBPART B: REPORTING
1010.200
Evaluation of Releases
1010.202
Reporting of Releases
1010.204
Follow-up Written Report
AUTHORITY: Implementing and authorized by Section 13.6 and Section 27 of the
Environmental Protection Act [415 ILCS 5/13.6, 27].
SOURCE: Adopted at 32 Ill. Reg. _________, effective _____________.
SUBPART A: GENERAL PROVISIONS
Section 1010.100
Purpose
This Part prescribes standards for detecting and reporting unpermitted releases of radionuclides
from nuclear power plants pursuant to Section 13.6 of the Illinois Environmental Protection Act
(Act) [415 ILCS 5/13.6].
Section 1010.102
Applicability
This Part applies to licensees of nuclear power plants that are required under Section 13.6 of the
Act to report an unpermitted release of a radionuclide.
Section 1010.104
Scope
This Part sets forth the procedures licensees of nuclear power plants must follow to satisfy their
obligation under Section 13.6 of the Act to report unpermitted releases of radionuclides to the
Agency and to IEMA. This Part addresses only the reporting of unpermitted releases of
radionuclides required under Section 13.6 of the Act. The requirements of this Part are
independent of, and do not replace or supersede, any other reporting requirements in state or
federal law or regulation. This Part does not prevent or preclude licensees from reporting
releases of radionuclides that are not required to be reported under Section 13.6 of the Act.
Section 1010.106
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 Environmental Protection Act [415 ILCS 5].

13
“Act” means the Environmental Protection Act [415 ILCS 5].
“Agency” means the Illinois Environmental Protection Agency.
“Curie” or “Ci” means the quantity of radioactive material producing 37 billion nuclear
transformations per second.
"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]
“IEMA” means the Illinois Emergency Management Agency.
“L” means liter.
“Licensee” means the holder of a license issued for a nuclear power plant under Chapter I
of Title 10 of the Code of Federal Regulations.
“Licensee controlled area” means the land or property that is owned, leased, or otherwise
controlled by the licensee.
“Picocurie” or “pCi” means the quantity of radioactive material producing 2.22 nuclear
transformations per minute. One pCi is one trillionth (10
-12
) of one curie.
"Person" is any individual, partnership, co-partnership, firm, company, limited liability
company, corporation, association, joint stock company, trust, estate, political
subdivision, state agency, or any other legal entity, or their legal representative, agent,
or assigns.
[415 ILCS 5/3.315]
“Station generated liquids” means liquids used in, or as a part of, the power generation
process at a nuclear power plant and that contain, or potentially could contain, radionuclides.
“Surface water” means all water that is open to the atmosphere and subject to surface runoff.
“Unpermitted release of a radionuclide” means any spilling, leaking, emitting,
discharging, escaping, leaching, or disposing of a radionuclide into groundwater,
surface water, or soil that is not permitted under State or federal law or regulation.
[415
ILCS 5/13.6(c)]. “Unpermitted release of a radionuclide” does not include the discharge
of a radionuclide from a point source at a designated process water or cooling water
outfall identified in the nuclear power plant’s National Pollutant Discharge Elimination
System permit, provided the discharge is authorized in the nuclear power plant’s United
States Nuclear Regulatory Commission operating license.
1010.108
Severability

 
14
If any provision in this Part or its application to any person or under any circumstances is
adjudged invalid, such adjudication shall not affect the validity of this Part as a whole or of any
portion not adjudged invalid.
SUBPART B: REPORTING
Section 1010.200
Evaluation of Releases
Within 24 hours after an unpermitted release of a radionuclide from a nuclear power plant into
groundwater, surface water, or soil, the licensee must evaluate the release in accordance with this
Section to determine whether it must be reported. The evaluation cannot take into account
remedial actions taken in response to the release (i.e., the evaluation must be based on the
volumes of station generated liquids and concentrations or quantities of radionuclides released,
not on the volumes of station generated liquids and concentrations or quantities of radionuclides
remaining after the initiation or completion of response actions). If the release is required to be
reported, the licensee must report the release in accordance with Section 1010.202 of this Part.
a)
Licensees must report unpermitted releases of station generated liquids that result
in tritium concentrations of 200 pCi/L or more outside of the licensee controlled
area.
b)
Licensees must report unpermitted releases of station generated liquids that
contain tritium at quantities of 0.002 Curies or more.
Section 1010.202
Reporting of Releases
a)
Reports required under Section 1010.200 of this Part must be given within 24
hours of the release to both the Agency and IEMA in accordance with the
following:
1)
Reports to the Agency must be given by telephone and electronically. At
the time these rules are adopted the Agency’s telephone number for
reporting environmental emergencies is 1-217-782-3637.
2)
Reports to IEMA must be given by telephone and electronically. At the
time these rules are adopted IEMA’s telephone number for reporting
emergencies is 1-800-782-7860, or, if calling from outside Illinois, 1-217-
782-7860.
3)
Electronic reports must be submitted on forms and in a format prescribed
by the Agency, and must be submitted to addresses prescribed by the
Agency and IEMA. The Agency shall consult with IEMA in developing
the forms and format for electronic reports required under this Section.
b)
Reports required under Section 1010.200 of this Part must include, at a minimum,
the following information using the best data available at the time of the report:

15
1)
The name and address of the nuclear power plant where the release
occurred;
2)
The name, signature, and telephone number of the Principal Executive
Officer for the nuclear power plant or the Principal Executive Officer’s
authorized agent;
3)
The specific location of the release;
4)
The time and duration of the release;
5)
An estimate of the volume and radionuclide concentrations (in pCi/L) of
station generated liquids released, and an estimate of the flow rate if the
release is ongoing;
6)
Identification of the radionuclides released and an estimate of the
quantities released (in Curies);
7)
Whether the release was to groundwater, surface water, or soil, and a
description of the area into which the release occurred (e.g., field, ditch,
stream, or other description) and the size of the area affected;
8)
The actions taken to respond to, contain, and mitigate the release;
9)
The known and anticipated impacts to human health and the environment,
including but not limited to groundwater and surface water resources, as a
result of the release;
10)
The names, addresses, and telephone numbers of persons at the nuclear
power plant who may be contacted for further information regarding the
release; and
11)
The name and mailing address of the licensee of the nuclear power plant.
c)
The Agency must post copies of the electronic reports it receives under this
Section on the Agency’s website.
Section 1010.204
Follow-up Written Report
An owner or operator who reports a release under this Part must provide to the Agency and to
IEMA a follow-up written report of the release within five business days after reporting the
release.

16
a)
The follow-up report must confirm and update the information provided by the
licensee under Section 1010.202 of this Part utilizing the best data available, and
must also include the following information:
1)
Copies of all lab analyses used to confirm the presence of, or conducted in
response to, the release if lab analyses have been conducted;
2)
Plan view and, if available, geological cross-section maps showing, at a
minimum, the location of the release, the locations of samples taken to
confirm the release if samples have been taken, the locations of samples
taken in response to the release if samples have been taken, the measured
and modeled extents of the release if known, the groundwater flow
direction if known, groundwater contours if known, the boundary of the
licensee controlled area, and structures, roads, and other surface features;
3)
An estimate of the volume and radionuclide concentrations (in pCi/L) of
station generated liquids released but not recovered;
4)
An estimate of the quantities (in Curies) of radionuclides released but not
recovered;
5)
An updated description of activities taken in response to the release;
6)
If additional activities in response to the release are planned, a description
of such activities; and
7)
The name and signature of the Principal Executive Officer for the nuclear
power plant or the Principal Executive Officer’s authorized agent.
b)
The follow-up report must be submitted electronically on forms and in a format
prescribed by the Agency, and must be submitted to addresses prescribed by the
Agency and IEMA. Within five business days after submission of the electronic
follow-up report, hard copies of the follow-up report must be submitted to the
Agency and IEMA at the following addresses:
Illinois Environmental Protection Agency
Bureau of Water
Groundwater Section
1021 North Grand Avenue East
P.O. Box 19276
Springfield, Illinois 62794-9276
Illinois Emergency Management Agency
Division of Nuclear Safety
Bureau of Environmental Safety
1035 Outer Park Drive

17
Springfield, Il 62704
The Agency shall consult with IEMA in developing the forms and format for
reports required under this Section.
c)
The Agency must post copies of the follow-up reports it receives under this
Section on the Agency’s website.
Section 41(a) of the Environmental Protection Act provides that final Board orders may
be appealed directly to the Illinois Appellate Court within 35 days after the Board serves the
order. 415 ILCS 5/41(a) (2006);
see also
35 Ill. Adm. Code 101.300(d)(2), 101.906, 102.706.
Illinois Supreme Court Rule 335 establishes filing requirements that apply when the Illinois
Appellate Court, by statute, directly reviews administrative orders. 172 Ill. 2d R. 335. The
Board’s procedural rules provide that motions for the Board to reconsider or modify its final
orders may be filed with the Board within 35 days after the order is received. 35 Ill. Adm. Code
101.520;
see also
35 Ill. Adm. Code 101.902, 102.700, 102.702.
I, John T. Therriault, Assistant Clerk of the Illinois Pollution Control Board, certify that
the Board adopted the above opinion and order on May 1, 2008, by a vote of 4-0.
___________________________________
John T. Therriault, Assistant Clerk
Illinois Pollution Control Board

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