ILLINOIS POLLUTION CONTROL BOARD

October 20,

1994

IN THE MATTER OF:

)

15

ROP

PLAN

CONTROL MEASURES FOR VON

)

EMISSIONS

 PART III: AIR OXIDATION

)

 R94-16

AND

ORGANIC EMISSIONS FROM STORAGE

AND

)

 (Rulemaking)

LOADING OPERATIONS: AMENDMENTS TO

35

 ILL. ADM. CODE 211,

218

AND

219

Adopted Rule.

 Final Order.

OPINION

AND

ORDER OF THE BOARD

 (by E. Dunham):

On June 15,

 1994,

 the Illinois Environmental Protection

Agency (Agency) filed this proposal for rulemaking.

 Section

182(b) (1)

 of the Clean Air Act

 (42 USC 7511(b) (1)) requires all

moderate and above ozone nonattainment areas to achieve a 15

reduction in 1990 emissions of volatile organic material

 (VON)

by

1996.

 The Chicago and the Metro—East St. Louis areas are

classified as severe and moderate nonattainment areas for ozone

and are subject to the 15

 reduction requirement.

 The proposed

rule represents Part III of the rules proposed in the Agency’s

15

 Rate of Progress Plan

 (ROP Plan).

 Section 182(b) (1) requires

states to submit 15

 ROP Plans within three years of the

enactment of the CAA.

 Illinois submitted its plan on November

15,

 1993.

 On January 21,

 1994,

 the USEPA found the submitted

plan to be incomplete because it was not accompanied by fully

adopted rules.

 Illinois is currently on notice that it has 18

months to adopt the necessary rules before sanctions are imposed

under Section 179(a)

 of the

CAA

 (42 USC §7509(a)).

The Board’s responsibility in this matter arises from the

Environmental Protection Act (Act).

 (415 ILCS 5/1 et

 seq.

(1992).)

 The Board is charged therein to “determine, define,

and

implement the environmental control standards applicable in the

state of Illinois.”

 (415 ILCS 5/5(b)

 (1992).)

 More generally,

the Board’s rulemaking charge is based on the system of checks

and balances integral to the Illinois environmental governance:

the Board bears responsibility for the rulemaking and principal

adjudicatory functions; the Illinois Environmental Protection

Agency

 (Agency) has primary responsibility for administration of

the Act and the Board’s regulations.

 The latter includes

administering today’s new regulation.

PROCEDURAL HISTORY

This proposal was filed on June 15,

 1994, pursuant to

Section 28.5 of the Act.

 (415 ILCS 5/28.5

 (1992).)

 Pursuant to

the provisions of that section the Board is required to proceed

 within the set time frames toward the adoption of the regulation.

The Board has no discretion to adjust these time frames under any

circumstances.

 Today the Board acts to send this proposal to

2

second notice under the Illinois Administrative Procedure Act

(APA).

 (5 ILCS 100/1005—40

 (1992).)

The Board sent this proposal to first notice under the APA

on June 23,

 1994, without commenting on the merits of the

proposal.

 The proposed rule was published in the Illinois

Register on July 8,

 1994,

at

 18 Ill. Reg.

10536

 (Part 211),

18

Ill.

 Reg.

10549

 (Part 218) and 18

 Ill.

 Reg.

10584

 (Part. 219)

A

hearing was held on August

4,

 1994,

 in Chicago, Illinois before

Board hearing officer Diane O’Neill.

 Previously—scheduled second

and third hearings were cancelled pursuant to Section 28.5(g)

of

the Act because a request for a second hearing was not received

by the Board.

 (415 ILCS 5/28.5(g)

 (1992).)

 The comment period

closed on August 22,

 1994.

 On September 15,

 1994, the Board sent

the proposed amendments to the Joint Committee on Administrative

Rules

 (JCAR)

 for review as required by the APA.

 On October 11,

1994, JCAR voted a certificate of no objection to the rule.

 JCAR

recommended minor grammatical and form corrections to the

proposed rules which the Board incorporates into the rule.

PROPOSAL

The geographic areas affected by this proposal are the

Chicago and Metro—East nonattainment areas.

 The proposed

amendments to Subpart V increase the Total Resource Effectiveness

(TRE)

 index and add a “once in always in” provision.

 This

proposal also revises Subpart B (Organic Emissions from Storage

and Loading Operations)

 of Parts 218 and 219.

 This revision is

similar to the draft Control Techniques Guideline

 (CTG)

and

Alternative Control Technology

 (ACT)

 documents issued by the

United States Environmental Protection Agency.

 The proposal adds

the definitions of “fill” and “maximum true vapor pressure” to

Part 211.

 The proposal also adds the definition for “opacity” to

Part 211 from Part 240.

The proposal amends the air oxidation rules.

 The control

requirements apply to any air oxidation process with a TRE index

of 6.0 or less.

 The Agency has identifled

 5 potentially affected

sources in the Chicago area.

 No air oxidation sources were found

in the Metro-East area.

The proposal requires each affected owner or operator to

reduce the VON emissions vented by at least 98

 by weight or to

emit VOM at a concentration of less than 20 parts per million by

volume, dry basis.

 The proposal also adds language which

requires continued control even if a change in operations results

in a TRE index that is above that which initially made the

regulation applicable.

 Similarly phthalic anhydride air

oxidation processes must maintain a control level of 90

 or the

equivalent of

 50 ppmv, dry basis, until either the existing

combustion device is considered to be replaced or December 31,

1999, whichever comes first.

3

The proposal affects owners or operators of VOL storage

facilities

 in the Chicago and Metro—East nonattainment area who

store VOL with

 a maximum true vapor pressure of 0.050 psia or

greater but less than 11.1 psia in any tank reservoir,

 or other

such container of more than 151 cubic meters

 (40,000 gal.)

The proposal requires each owner or operator of an organic

liquid storage tank with a capacity of 40,000 gallons or more and

a vapor pressure of 0.75 psia or greater but not exceeding 11.1

psia to install control systems.

 The control measures are

specified according to the type of roof on the vessel containing

the liquid.

 Owners or operators of organic liquid storage tanks

with a vapor pressure of 0.50 psia or greater but less than 11.1

psia are required to maintain certain operational records for

storage of VOL with a vapor pressure exceeding 0.75 psia to test

and monitor operations at the storage tank.

PUBLIC COMMENTS

The Board received four public comments during the public

comment period.

 Comments were submitted by the Department of

Commerce and Community Affairs

 (DCCA)

 (PC #1), the Illinois

Environmental Regulatory Group

 (IERG)

 (PC #2), the Agency

 (PC #3)

and the Administrative Code Division of the Secretary of State

(PC #4).

The Board has considered all public comments,

 as well as all

testimony and exhibits,

 in making its decisions in this matter.

In general, there is no disagreement on the part of the

participants and commenters on the substance of the proposal.

A

discussion of the public comments is contained in the Board’s

second notice opinion and order of September 15,

 1994.

CONCLUSION

The Board finds that the proposed rules are technically

feasible and economically reasonable,

 and that the rules are

necessary to meet the requirements of the Clean Air Act.

 We find

that the record supports adoption of the rules as amended.

ORDER

The Board hereby proposes the following amendments to 35

Ill.

 Adm. Code 211,

 218 and 219.

 The Board directs the Clerk to

submit the following adopted amendments to the Administrative

Code Division of the Secretary of State.’

For ‘mailing purposes, the Board has omitted from the

order those portions to the tables of contents that are not

proposed to be changed in this rulemaking.

 Interested persons

may view the tables of contents in its entirety in the copy of

4

TITLE 35:

 ENVIRONMENTAL PROTECTION

SUBTITLE B:

 AIR POLLUTION

CHAPTER I:

 POLLUTION CONTROL BOARD

SUBCHAPTER

 EMISSION STANDARDS AND LIMITATIONS

FOR STATIONARY SOURCES

PART 211

DEFINITIONS AND GENERAL PROVISIONS

211.2300

 Fill

211.3695

 Maximum True Vapor Pressure

AUTHORITY:

 Implementing Sections 9,

 9.1 and 10 and authorized by

Section 27 and 28.5 of the Environmental Protection Act

415

 ILCS

5/9,

 9.1,

10,

 27 and 28.5

 (1992).

SUBPART B:

 DEFINITIONS

Section 211.2300

 Fill

“Fill,” for purposes of 35

 Ill.

 Adm. Code 218.119 through 218.129

and 219.119 through 219.129, means the introduction of VOL into a

storage vessel but not necessarily to complete capacity.

(Source:

 Added at

 Ill.

 Reg.

 effective

____________)

Section 211.3695

 Maximum True Vapor Pressure

“Maximum true vapor pressure” means the equilibrium partial

pressure exerted by stored VOL at the temperature equal to the

highest calendar-month average of the VOL storage temperature for

VOLs stored above or below the ambient temperature or at the

local maximum monthly average temperature of 75 degrees

fahrenheit for the Chicago nonattainment area as defined at 35

Ill.

 Adm. Code 218.100 or 79 degrees fahrenheit for the Metro-

East nonattainment area as defined at 35 Ill.

 Adm. Code 219.100

for VOLs stored at the ambient temperature, as determined:

~j

 In accordance with methods described in American

Petroleum Institute Bulletin 2517,

 Evaporation Loss

from External Floating Roof Tanks,

 incorporated by

reference at 35 Ill. Adm. Code 218.112 and 219.112;

or

~j

 BY ASTM Method D2879-83, incorporated by reference at

35 Ill.

 Adm. Code 218.112(a) (1)

 and 219.112(a) (1).

the proposal submitted by the Agency and retained in the Clerk’s

file.

 An entire version including the full tables of contents

was published in the Illinois Register, and a copy of that

submittal is available in the Clerk’s file.

5

(Source:

 Added at

Section 211.4130

“OpacitY” means

Ill.

 Req.

_____,

 effective

Opacity

~j

 For purposes of Part 212.

 a condition which renders

material partially or wholly impervious to

transmittance of light and causes obstruction of an

observer’s view.

 For the purposes of these

regulations, the following equivalence between opacity

and Rin~elmannshall be employed:

Opacity Percent

10

20

30

40

60

80

100

Ringelmann

0.5

1.

1.5

2.

3.

4.

5.

~j

 That fraction of light, expressed in percent, which when

transmitted from a source through a smoke—obscured path,

is prevented from reaching the observer or instrument

receiver.

(Source:

 Amended at

 Ill.

 Reg.

______,

 effective

TITLE 35:

 ENVIRONMENTAL PROTECTION

SUBTITLE B:

 AIR POLLUTION

CHAPTER I:

 POLLUTION CONTROL BOARD

SUBCHAPTER

c:

 EMISSIONS STANDARDS

AND

LIMITATIONS

FOR STATIONARY SOURCES

PART 218

ORGANIC MATERIAL EMISSION STANDARDS AND LIMITATIONS FOR THE

CHICAGO AREA

SUBPART B:

 ORGANIC EMISSIONS FROM STORAGE AND LOADING OPERATIONS

Section

218. 119

218.120

218.121

218

122

218.123

218.124

218.125

218.126

Applicability for VOL

Control Requirements for Storage Containers of VOL

Storage Containers of VPL

Loading Operations

Petroleum Liquid Storage Tanks

External Floating Roofs

Compliance Dates

 (Rcpcalcd)

Compliance Plan (Repealed)

6

218.127

 Testing VOL Operations

218.128

 Monitoring VOL Operations

218.129

 Recordkeepinq and Reporting for VOL Operations

SUBPART V:

 AIR OXIDATION PROCESSES

________

 Emission Limitations for Air Oxidation Processes

Definitions

 (Repealed)

________

 Savings Clause

________

 Com~l

 iance

_______

 Determination of Applicability

Emission Limitations for Air Oxidation Processes

(Renumbered)

218.526

 Testing and Monitoring

218.527

 Compliance Date (Repealed)

AUTHORITY:

 Implementing Section 10 and authorized by Section

28.5 of the Environmental Protection Act

415

 ILCS 5/10 and 28.5

(1992)

SUBPART B:

 ORGANIC EMISSIONS FROM STORAGE

AND

LOADING OPERATIONS

Section 218.119

 Applicability for VOL

The limitations of Section 218.120 of this Subpart shall apply to

all storage containers of volatile organic liquid

 (VOL) with a

maximum true vapor pressure of 0.5 psia or greater in any

stationary tank, reservoir,

 or other container of 151 cubic

meters

 (40,000

 gal) capacity or greater, except to vessels as

provided below:

~j

 Vessels with

 a capacity greater than or egual to 40,000

gallons storing a liquid with a maximum true pressure

of less than 0.5 psia

~j

 Vessels of coke oven by—product plants

~j

 Pressure vessels designed to operate

 in excess of 29.4

psia and without emissions to the atmosphere

~,J

 Vessels permanently attached to mobile vehicles such as

trucks, rail cars, barges, or ships

~j

 Vessels storing petroleum liquids; or

 Vessels used to store beverage alcohol.

gj~.

 Vessels with storage capacity less than 40,000 gallons

must comply with Section 218.129(f).

(Source:

 Added at _____Ill. Reg.

 effective.

Section

218.520

218.521

218.522

218.523

218.524

218.525

Section 218.120

 Control Requirements for Storage Containers

7

9f_VOL

~

 Every owner or operator storinct VOL in

 a. vessel

Qf

4.q~O0Q

gallons or greater with a maximum true vapq~

pressure equal to 0.75 psia but less than 11.~_psia

shall reduce VON emissions from storage tanks~

~eservoirs1 or other containers as follows:

fl~.

~ch

 fixed roof tank shall be eq~uipPedwith an

internal floatjng.toof that meets the followinqi~

si~ecificationsor that is equiPped with a

 va.por

control sYstem that meets the specifications

contained in subsection ja) (4) be1o~

~j

 The internal floating roo~fshall rest or

float on the liquid surfas~e(but not

ri~cessari1yin complete contact with

itJ~

inside a storage vessel that has a fixe~,

roof.

 The internal floating roof shall b~

fioatin~gon the 1iq~idsurface at all ti~s,

except during initial fill and during those

iiftervals when the storage vessel i~

~ompletelv emptied and subsequently refilled.

When the roof is resting on the le~gupDor~~

the process of filling.

 emptying, or

refilling shall be continuous and shall be

a~coitrnlished_asrapidly as ~ossible~

~ch

 internal floating roof shall be equipped

with

one of the followinçLclosure devices

between the wall of the storage vessel ~

the edqe of_the internal floating roof:

jj~

 A foam- or liquid-filled seal mounted in

contact with the liauid i~liquid-mounted

seall.

 A liquid—mounted seal means a

foam— or liquid-filled seal mQunted in

contact with the liauid between the w~JJ~

of the storage vessel and the floating

roof continuously around the

circumference of the tan)çj

jjj.

Two

seals mounted oite above the other so

that each forms a continuous closur~

that com~lete1ycovers the space between

the wall of the storage vessel and th~

edge of the internaLfloating roof.

The

lower seal may be vapor—mounted, but

 beth must be continuous;

iii)

 A mechanical shoe seal.

 which

 is a metaj..

sheet held vertically against the w~1l

of the storage vessel by springs or

weighted levers and is connected by

8

braces to the floating roof.

 A flexible

coated fabric (envelope)

 spans the

annular space between the metal sheet

and the floating roof.

çj.~.

 Each opening in a noncontact internal

floating roof except for automatic bleeder

vents (vacuum breaker vents)

 and the rim

space vents

 is to provide a prolection below

the liquid surface.

~j

 Each opening in the internal floating roof

except for leg sleeves, automatic bleeder

vents,

 rim space vents, column wells,

 ladder

wells, sample wells,

 and stub drains is to be

equipped with a cover or lid which is to be

maintained in

 a closed position at all times

(i.e., no visible

gap)

 except when the device

is in actual use.

 The cover or lid shall be

equipped with a gasket.

 Covers on each

access hatch and automatic gauge float well

shall be bolted except when they are in use.

~j.

 Automatic bleeder vents shall be equipped

with a gasket and are to be closed at all

times when the roof is floating except when

 the roof is being floated off or is being

landed on the roof le~supports.

 Rim space vents shall be equipped with a

gasket and are to be set to open only when

the internal floating~roofis not floating or

at the manufacturer’s recommended setting.

~

 Each penetration of the internal floating

roof for the purpose of sampling shall be a

sample well.

 The sample well shall have a

slit fabric cover that covers at least 90

percent of the opening.

111.

 Each penetration of the internal floating

roof that allows for passage of

 a ladder

shall have a gasketed sliding cover.

~j.

 During the next scheduled tank cleaning or before

March 15,

 2004, whichever comes first, each

internal floating roof tank shall meet the

specifications set forth in subsection

 (a) (1) (A)

through

(H)

 above.

 Each external floating roof tank shall meet the

following specifications:

~j

 Each external floating roof shall be equipped

9

with a closure device between the wall of the

storage vessel and the roof edge.

 The closure

device

 is to consist of two seals,

 one above

the other. The lower seal is referred to as

the primary seal.

 and the upper seal is

referred to as the secondary seal.

j~

 Except as provided in Section

218.127(b) (4) of this Subpart, the

primary seal shall completely cover the

annular space between the edge of the

floating roof and tank wall and shall be

either

 a liquid mounted seal or a shoe

seal.

iii.

 The secondary seal shall completely

cover the annular space between the

external floating roof and the wall of

the storage vessel in a continuous

fashion except as allowed in Section

218.127(b) (4)

 of this Subpart.

iii) The tank shall be equioped with the

closure device after the next scheduled

tank cleaning’, but no later than March

15,

 2004.

~j.

 Except for automatic bleeder vents and rim

space vents,

 each opening in a noncontact

external floating roof shall provide a

prolection below the liquid surface. Except

for automatic bleeder vents, rim space vents.

roof drains, and leg sleeves, each opening in

the roof

 is to be equipped with a gasketed

cover,

 seal,

 or lid that is to be maintained

in a closed position at all times

 (i.e., no

visible gap) except when the device is in

actual use.

 Automatic bleeder vents are to be

closed at all times when the roof is floating

except when the roof is being floated off or

is being landed on the roof 1e~supPorts. Rim

vents are to be set to open when the roof is

being floated off the roof leg supports or at

 the manufacturer’s recommended setting.

Automatic bleeder vents and rim space vents

are to be gasketed. Each emergency roof drain

is to beprovided with a slotted membrane

fabric cover that covers at least 90 percent

of the area of the opening.

~j.

 The roof shall be floating on the liquid at

all times

 (i.e.,

 off the roof leg supports)

except when the tank is com~1etelyemptied

and subsequently refilled. The process of

10

filling,

 emptying, or refilling when the roof

is resting on the leg supports shall be

continuous and shall be accomplished as

rapidly as possible.

j)

 A closed vent system and control device

respectively shall meet the following

specifications:

~j

 The closed vent system shall be designed to

collect all VON vapors and gases discharged

from the storage vessel and operated with no

detectable emissions as indicated by an

instrument reading of less than 500 ppm above

background and visual

 inspections,

as

determined by the methods specified in 40 CFR

60.485(c),

 incorporated by reference at

Section 218.112(d)

 of this Part.

~j

 The control device shall be designed and

operated to reduce inlet VOM emissions by 95

percent or greater.

 If a flare is used as the

control device,

 it shall meet the

specifications described in the general

control device requirements of 40 CFR 60.18.

incorporated by reference at Section

218.112(d)

 of this Part.

~j

 An alternative emission control plan equivalent to

the requirements of subsection

 (a) (1),

 (a) (2).

(a) (3), or

 (a) (4)

 above that has been approved by

the Agency and the USEPA in

 a federally

enforceable permit or as a SIP revision.

~j

 The owner or operator of each storage vessel with a

design capacity equal to or greater than 40,000 gallons

which contain VOL that,

 as stored, has a maximum true

vapor pressure greater than or equal to 11.1 psia shall

equip each storage vessel with a closed vent system and

control device as specified in subsection

 (a) (4)

 above.

 Notwithstanding subsection

 (b) of this section, where

an owner

 or operator can demonstrate that the control

device installed on a storage vessel on or before

December 31,

 1992. was designed to reduce inlet VON

emissions by greater than or e~al to 90 percent but

less than 95 percent, the control device shall be

pp~ratedto reduce inlet VON emission by 90 percent or

greater.

(Source:

 Added at

 Ill.

 Reg.

 effective

)

Section 218.121

 Storage Containers of VPL

11

No person shall cause or allow the storage of any ~

 volatile

petroleum liquid

 (VPL) with a vapor pressure of 17.24

 10.34 kPa

psia)

 or greater at 294.3°K(70°F) or any gaseous organic

material in any stationary tank, reservoir or other container of

more than 151 cubic meters

 (40,000 gal) capacity unless such

tank, reservoir or other container:

a)

 Is a pressure tank capable of withstanding the vapor

pressure of such liquid or the pressure of the gas,

so

as to prevent vapor or gas loss to the atmosphere at

all times; or7

b)

 Is designed and

 equipped

 with one of the following

vapor loss control devices:

1)

 A floating roof which rests on the surface of the

VO~3~j~

 and is equipped with a closure seal or

seals between the roof edge and the tank wall.

Such floating roof shall not be permitted if the

3~ has a vapor pressure of 86.19 kPa

 (12.5

psia)

 or greater at 294.3°K(70°F). No person

shall cause or allow the emission of air

contaminants into the atmosphere from any gauging

or sampling devices attached to such tanks, except

during sampling or maintenance operations.

2)

 A vapor recovery system consisting of:

A)

 A vapor gathering system capable of

collecting 85

 or more of the uncontrolled

VOM that would be otherwise emitted to the

 atmosphere; and7

B)

 A vapor disposal system capable of processing

such VON so as to prevent its emission to the

atmosphere.

 No person shall cause or allow

the emission of air contaminants into the

atmosphere from any gauging or sampling

devices attached to such tank,

 reservoir or

other container except during sampling.

3)

 Other equipment or means of equal efficiency

approved by the Agency according to the provisions

of 35 Iii. Adm. Code 201, and further processed

consistent with Section 218.108.

(Source:

 Amended at_Ill.

 Reg.

 effective

_____________

Section 218.125

 Compliance Dates

Every owner or operator of a VOL or VPL storage vessel sublect to

the requirements of this Subpart shall com~lvwith the

requirements of this Subpart in accordance with the compliance

schedule specified in the applicable subsection below:

12

~j

 Every owner or operator of a VPL storage vessel of the

type included in Sections 218.121, 218.123 and 218.124

of this Subpart shall have complied with the

requirements of Sections 218.121, 218.123 and 218.124

by the date set forth

 in Section 218.106(a)

or

(b)

of

this Part.

~j

 Every owner or operator of a VOL storage vessel of the

tv~eidentified in Section 218.119 of this Subpart

shall comply with the requirements of Section 218.120

of this Subpart as follows:

 For fixed roof tanks

 (Section 218.120(a) (1)

of

this Subpart), by March 15,

 1996.

~

 For internal floating roof tanks

 (Section

218.120(a) (2)

 of this Subpart), either during the

next scheduled tank cleaning or by March 15,

 2004,

whichever comes first

~j.. For external floating roof tanks

 (Section

218.120(a) (3)

 of this Subpart). either during the

next scheduled tank cleaning or by March 15,

 2004,

whichever comes first; and

4j

 For closed vent system and control device equi~~ed

tanks

 (Section 218.120(a) (4) of this Subpart), by

March 15,

 1996.

(Source:

 Added at

 Ill. Reg._,

 effective

)

Section 218.127

 Testing VOL Operations

The owner

 or operator of each storage vessel specified in Section

218.119 of this Subpart shall comply with the requirements of

subsection

 (a),

 (b), or

(c)

 below.

 The applicable subsection for

a particular storage vessel depends on the control equipment

installed to meet the requirements of this Subpart.

~j

 After installing the control equipment necessary for

the source to comply with the requirements of Section

218.120(a) (1) or

(2)

 of this Subpart (permanently

 affixed roof and internal floating roof).

 each owner or

operator shall:

3j

 Visually inspect the internal floating roof, the

primary seal,

 and the secondary seal

 (if one is in

service)

 prior to filling the storage vessel with

VOL.

 If there are holes,

 tears,

 or other openings

in the primary seal,

 the secondary seal,

 or the

seal fabric or defects in the internal floating

roof,

 or both,

 the owner or operator shall repair

the items before filling the storage vessel.

13

 For vessels equipped with a liquid—mounted or

mechanical shoe primary seal, visually inspect the

internal floating roof and the primary seal or the

secondary seal

 (if one is in service) throu~h

manholes and roof hatches on the fixed roof at

least once every 12 months after initial fill.

If

the internal floating roof is not resting on the

surface of the VOL inside the storage vessel, or

if there

 is liquid accumulated on the roof,

 or if

the seal

 is detached, or if there are holes or

tears

 in the seal fabric, the owner or operator

shall repair the items or empty and remove the

stora~evessel from service within 45 days.

 If a

failure that is detected during inspections

required in this subsection cannot be repaired

 within 45 days and

 if the vessel cannot be emptied

within 45 days.

 the owner or operator may request

a 30—day extension from the Agency in the

inspection report required in Section

218.129(a) (3)

 of this Subpart. Such a request for

an extension must document that alternate storage

capacity is unavailable and specify a schedule of

actions the owner or operator will take that will

assure that the control equipment will be repaired

or the vessel will be emptied within 30 days.

 For vessels equipped with both primary and

secondary seals

~j

 Visually inspect the vessel as specified in

subsection

 (a) (4) below at least every

5

years; or

~j

 Visually inspect the vessel as specified in

subsection

 (a) (2)

 above.

 Visually inspect the internal floating roof, the

primary seal, the secondary seal

 (if one is in

service), gaskets, slotted membranes.

 and sleeve

seals

 (if any) each time the storage vessel is

emptied and degassed. If the internal floating

roof_has defects, the primary seal has holes,

tears,

 or other openings in the seal,

 or if the

seal_fabric or the secondary seal has holes,

tears,

 or other openings in the seal, or if the

seal fabric or the gaskets no lon~erclose off the

liquid surfaces from the atmosphere. or if the

 slotted membrane has more than 10 percent open

area, the owner or operator shall repair the items

as necessary so that none of the conditions

specified in this subsection exists before

refilling the storage vessel with VOL.

 In no event

shall inspections conducted in accordance with

this provision occur at intervals greater than 10

14

years in the case of vessels sublect to the annual

visual inspection as specified in subsections

(a) (2) and

 (a) (3) (B)

 above and at intervals no

~reater than

 5 years

 in the case of vessels

specified in subsection

 (a) (3) (A)

 above.

,~j

 Notify the Agency in writing at least 30 days

prior to the filling or refilling of each storage

vessel for which an inspection is required by

subsections

 (a) (1)

and

 (a) (4) above to afford the

Agency the opportunity to have an observer

present.

 If the inspection required by subsection

(a) (4)

 above is not planned and the owner or

operator could not have known about the inspection

30 days

 in advance of refilling the tank,

the

owner or operator shall notify the Agency at least

7 days prior to the refilling of the storage

vessel. Notification shall be made by telephone

immediately followed by written documentation

demonstrating why the inspection was unplanned.

 Alternatively, this notification including the

written documentation may be made in writing and

sent by express mail so that it is received by the

Agency at least

 7 days prior to the refilling.

~j

 The owner or operator of external floating roof tanks

shall:

 Determine the gap areas and maximum gap widths

between the primary seal and the wall of the

storage vessel and between the secondary seal and

the wall of the storage vessel.

~j

 Measurements of gaps between the tank wall

and the primary seal

 (seal gaps)

 shall be

performed during the hydrostatic testing of

the vessel or within

 60 days after the

initial fill with VOL and at least once every

5 years thereafter.

 Measurements of gaps between the tank wall

and the secondary seal shall be performed

within 60 days after the initial fill with

VOL and at least once per year thereafter.

çj

 If any source ceases to store VOL for a

period of 1 year or more,

 subseauent

introduction of VOL into the vessel shall be

considered an initial fill for the purposes

of subsections

 (b) (1) (A)

and

 (b) (1) (B)

 above.

 Determine gap widths and areas

 in the primary and

secondary seals individually according to the

following procedures:

15

~j

 Measure seal gaps,

 if any, at one or more

floating roof

 levels when the roof is

floating off the roof leg supports

Dl

 Measure seal gaps around the entire

circumference of the tank in each place where

a 1/8 inch in diameter uniform probe passes

freely

 (without forcing or binding against

seal)

 between the seal and the wall of the

storage vessel and measure the

circumferential distance of each such

location; and

çj

 Determine the total surface area of each gap

described in subsection

 (b) (2) (B)

 above by

using probes of various widths to measure

accurately the actual distance from the tank

wall to the seal and multiplying each such

width by its respective circumferential

distance.

~j

 Add the gap surface area of each gap location for

the primary seal and the secondarY seal

individually and divide the sum for each by the

nominal diameter of the tank and compare each

ratio to the respective standards in subsection

~b)(4)

 below.

 Make necessary repairs or emPty the storage vessel

within 45 days after identification in any

inspection for seals not meeting the requirements

listed in subsections

 (b) (4) (A)

and

 (B) below:

~

 The accumulated area of gaps between the tank

wall and the mechanical shoe or liquid—

mounted primary seal shall not exceed 10

 in.2

per foot of tank diameter, and the width of

any portion of any gap shall not exceed 1.5

in. There are to be no holes,

 tears,

 or other

openings in the shoe,

 seal fabric,

 or seal

envelope.

Dl

 The secondary seal

 is to meet the following

requirements:

j)

 The secondary seal is to be installed

above the primary seal so that it

completely covers the space between the

roof edae and the tank wall except as

provided in subsection

 (b) (2) (C)

 above.

iii

 The accumulated area of gaps between the

tank wall and the secondary seal used in

combination with a metallic shoe or

16

liquid-mounted Primary seal shall not

exceed 1.0

 in.2 per foot of tank

diameter, and the width of any portion

of any gap shall not exceed 0.5

in.

There shall be no naps between the tank

wall and the secondary seal when used in

combination with a vapor mounted primary

seal.

iii)

 There are to be no holes, tears,

or

other openings in the seal or seal

fabric.

~j

 If a failure that is detected during

inspections required in Section 218.127(b) (1)

of this Subpart cannot be repaired within 45

days and if the vessel cannot be emptied

 within 45 days. the owner or operator maY

request a 30—day extension from the Agency in

the inspection report required in Section

218.129(b) (4) of this Subpart. Such extension

request must include a demonstration of

unavailability of alternate storage capacity

and

 a specification of a schedule that will

assure that the control equipment will be

repaired or the vessel will be emptied as

soon as possible.

~j.

 Notify the A~encv30 days in advance of any gap

measurements required by subsection

 (b) (1)

 above

to afford the Agency the opportunity to have an

observer present.

~

 Visually inspect the external floating roof, the

primary seal. secondary seal, and fittings each

time the vessel

 is emptied and degassed.

~j

 If the external floating roof has defects,

if

the primary seal has holes, tears,

 or other

openings in the seal or the seal fabric, or

if the secondary seal has holes, tears,

or

other openings in the seal or the seal

fabric, the owner or operator shall repair

the items as necessary so that none of the

conditions specified in this subsection exist

before filling or refilling the storage

vessel with VOL.

Dl

 For all the inspections required by

subsection

 (b) (6)

 above, the owner

or

operator shall notify the Agency in writing

at least 30 days prior to the filling or

 refilling of each storage vessel to afford

the Agency the opportunity to inspect the

17

storage vessel prior to refilling.

 If the

inspection required by subsection

 (b) (6)

above is not planned and the owner or

operator could not have known about the

inspection 30 days in advance of refillin2

the tank, the owner or operator shall notify

the Agency at least

 7 days prior to the

refilling of the storage vessel. Notification

shall be made by telephone immediately

followed by written documentation

demonstrating why the inspection was

unplanned. Alternatively, this notification

including the written documentation

may

be

sent by express mail so that

 it is received

by the Agency at least

 7 days prior to the

refilling.

~j

 The owner or operator of each source that is equipped

with a closed vent system and a flare to meet the

requirements of Section 218.120(a) (4)

 of this Subpart

shall meet the requirements specified in the general

control device reguirements of 40 CFR 60.18(e) and

 (f).

incorporated by reference at Section 218.112(d)

 of this

Part.

(Source:

 Added at ____Ill. Reg.

 effective

______________)

Section 218.128

 Monitoring VOL Operations

~J.

 Except as provided in subsection

(d)

 below,

 the owner

or operator of each storage vessel with a design

capacity greater than or equal to 40,000 gallons

storing a liquid with a maximum true vapor pressure

that is normally less than 0.75 psia shall notify the

Agency within

 30 days when the maximum true vapor

pressure of the liquid exceeds 0.75 psia.

~

 Available data on the storage temperature may be used

to determine the maximum true vapor pressure.

.~j

 For vessels operated above or below ambient

temperatures, the maximum true vapor pressure is

calculated based upon the highest expected

calendar—month average of the storage temperature.

For vessels operated at ambient temperatures, the

maximum true vapor pressure

 is calculated based

upon the maximum local monthly average ambient

temperature as reported by the National Weather

Service.

 For other liquids, the vapor pressure:

~j

 Determined by ASTM Method D2879-83,

incorporated by reference at Section

18

218.112(a) (1)

 of this Part

Dl

 Measured by an appropriate method approved by

the Agency and USEPA; or

~j

 Calculated by an appropriate method approved

by the Agency and TJSEPA.

 The owner or operator of each vessel storing a mixture

 of indeterminate or variable composition shall be

subiect to the following:

 Prior to the initial filling of the vessel, the

maximum true vapor pressure for the range of

anticipated liquid compositions to be stored will

be determined using the methods described in

subsection

(bi

 above.

 For vessels in which the vapor pressure of the

anticipated liquid composition is 0.5 psia or

greater but less than 0.75 psia,

 an initial

physical test of the vapor pressure is required;

a

physical test at least once every

 6 months

thereafter is required as determined by the

following methods:

~

 ASTM Method D2879-83.

 incorporated by

reference at Section 218.112(a) (1)

 of this

Part; or

 ASTM Method D323-82.

 incorporated by

reference at Section 218.112(a) (25) of this

Part; or

~j

 As measured by an approPriate method approved

Agency.

ç~j

 The owner or operator of each vessel equipped with a

closed_vent system and control device meeting the

specifications of Section 218.120 of this Subpart is

exempt from the requirements of subsections

 (a) and

(b)

above.

(Source:

 Added at

____

 Ill. Reg.

 effective

_____________

Section 218.129

 Recordkeeping and Reporting for VOL

Operations

The owner or operator of each storage vessel specified in Section

218.120(a)

 of this Subpart shall maintain records and furnish

reports as required by subsection

 (a),

 (b), or

 (c) below as

appropriate for the control equipment installed to meet the

requirements of Section 218.120.

 The owner or operator shall

keep copies of all rePorts and records required by this Section,

19

except for the records required by subsection

 (c) (1)

 below, for

at least

 3 years.

 The records required by subsection

 (c) (1) below

shall be kePt for the life of the control equipment.

~j

 After installing control equipment in accordance with

Section 218.120(a) (1) or

(2)

 of this Subpart

 (fixed

roof and internal floating roof), the owner or operator

shall:

 Furnish the Agency with

 a rePort that describes

the control equipment and certifies that the

control equipment meets the specifications of

~ections 218.120(a) (1) and 218.127(a) (1) of this

Subpart

 Keep a record of each inspection performed as

required by Section 218.127(a)(1),

 (a)(2),

 (a)(3),

and

 (a) (4) of this Subpart. Each record shall

identify the storage vessel on which the

 inspection was performed and shall contain the

date the vessel was inspected and the observed

condition of each component of the control

egui~ment (seals, internal floating roof, and

fittings)

 If any of the conditions described in Section

218.127(a) (2)

 of this Subpart are detected during

the annual visual inspection required by Section

218.127(a) (2). report to the Agency within 30 days

after the inspection,

 the identity of the storage

vessel, the nature of the defects, and the date

the storage vessel was emptied or the nature of

and date the repair was made; and

 After each inspection required by Section

218.127(a) (3)

 of this Subpart where holes or tears

in the seal or seal fabric, or defects in the

internal floating roof, or other control equipment

defects listed in Section 218.127 (a) (3) (B)

 of this

Subpart are discovered, report to the Agency

within 30 days after the inspection the identity

of the storage vessel and the reason it did not

meet the specifications of Section 218.120(a) (1)

or

 (2) or Section 218.127(a)

 of this Subpart, and

list each repair made.

~

 After installing control equipment in accordance with

Section 218.120(a) (3)

 of this Subpart

 (external

floating roof), the owner or operator shall:

 Furnish the A~encvwith

 a report that describes

 the control equipment and certify that the control

equipment meets the specifications of Sections

218.120(a)(3) and 218.127(b)(2).

 (b)(3), and

20

(b) (4) of this Subpart

21

 Within 60 daYs after performing the seal gap

measurements required by Section 218.127(b) (1)

of

this Subpart,

 furnish the Agency with a report

that contains:

~

 The date of measurement

Dl

 The raw data obtained in the measurement; and

~j

 The calculations of this Subpart described in

Section 218.127(b) (2) and

 (b)(3)

 of this

Subpart;

~j

 Maintain records of each gap measurement performed

as required by Section 218.127(b)

 of this Subpart.

Such records shall identify the storage vessel in

which the measurement was performed and shall

contain:

~j

 The date of measurement

Dl

 The raw data obtained in the measurement; and

,Q).

 The calculations described in Section

218.127(b) (2) and

 (b) (3)

 of this Subpart

 After each seal gap measurement that detects gaps

exceeding the limitations specified by Section

218.127(b) (4) of this Subpart, submit a report to

the Agency within 30 days after the inspection

identifying the vessel and containing the

 information specified in subsection

 (b) (2)

 above

and the date the vessel was emptied or the repairs

were made and the date of repair.

ci

 After installing control equipment in accordance with

Section 218.120(a) (4)

 of this Subpart

 (closed vent

system and control device other than a flare), the

owner or operator shall maintain the following records:

~j

 A copy of the operating plan;

and

21

 The measured values of the parameters monitored in

accordance with Section 218.127(c) (2) of this

Subpart.

~

 After installing a closed vent system and flare to

comply with Section 218.127 of this Subpart, the owner

or operator shall:

~j

 Provide the Agency with a report containing the

measurements required by 40 CFR 60.18

 (f) (1),

 (2),

21

L3i,

 (4),

 (5), and

 (6), incorporated by reference

at Section 218.112(d)

 of this Part, within

6

months after the initial start-up date

21

 Maintain records of all periods of operation

during which the flare pilot flame is absent; and

 Retort semiannually all periods recorded under 40

CFR 60.llSb(d)(2).

 incorporated bY reference at

Section 218.112(d)

 of this Part,

 in which the

 pilot flame was absent.

~j

 The owner or operator shall maintain all records

required by this Section, except for the records

required by subsection

(f)

 below,

 for at least

 3 years.

The records required by subsection

(f)

below

shall

kept for the life of the source.

 The owner or operator of each storage vessel specified

in Section 218.119 of this Subpart shall maintain

readily accessible records of the dimension of the

stora~evessel and an analysis of the capacity of the

stora~evessel. Each stora~evessel with a design

capacity less than 40,000 gallons is subject to no

provision of this Part other than those required bY

maintaining readily accessible records of the

dimensions of the storage vessel and analysis of the

capacity of the storage vessel.

gj~.

 Except as provided in Section 218.128

(c)

and

(d)

of

this Subpart. the owner or operator of each storage

vessel subject to the requirements in Section 218.120

with a design capacity ~reater than or equal to 40,000

gallons storing a liquid with a maximum true vapor

pressure greater than or equal to 0.5 psia but less

than_0.75 psia shall maintain a record of the VOL

storage, the period of storage,

 and the maximum true

vapor pressure of the VOL during the respective storage

period.

(Source:

 Added at

_____

 Ill. Reg.

______,

 effective

__________

SUBPART

V:

 AIR OXIDATION PROCESSES

Section 218.520213.525

 Emission Limitations for Air Oxidation

Processes

a)

 No person shall cause or allow the emission of VON from

any process vent stream unless the process vent stream

is vented to a combustion device which

 is designed and

operated either:

1)

 To reduce the volatile organic emissions vented to

22

it with an efficiency of at least ninety eight

percent

 (98)

 by weight; or

2)

 To emit VOM at a concentration less than twenty

parts per million by volume, dry basis.

b)

 Combustion Device at a Phthalic Anhydride Air Oxidation

Process

 Notwithstanding subsection

(a)

 above, and subject

to subsection

 (b) (2)

 below,

 no person shall cause

or allow the emissions of VON through an existing

combustion device at an phthalic anhydride air

oxidation process. unless the combustion device is

operated to achieve:

~

90

 control of the volatile organic emissions

vented to

it;

or

VOM

emissions concentration of less than 50

parts per million by volume, dry basis.

2.1

 A air oxidation proccoo vent ~trcam ~or wiiion an

~y

 existing combustion device subiect to

subsection

 (b) (1)

 above io employed to control

proccoc VOM emiooiono is ~

 required to meet the

98 percent emissions limit until set forth in

subsection

(a)

 above either upon replacing the

combustion device 13 replaced for ~p~yother

reasons, which 3hall be conoidered to include

including, but not ~e limited to, normal

maintenance, malfunction,

 accident, and

obsolescence, or the date of December 31.

 1999,

whichever comes first.

T~e

 combustion device is

considered to be replaced when

 All of the device is replaced; or

~D)

 When the cost of the repair of the device or

the cost of replacement of part of the device

exceeds 50

 of the cost of replacing the

entire device with a device which complies.

c)

 The limitations of subsection

(a)

 above shall do not

apply to any process vent stream or combination of

process vent streams which has with a Total Resource

Effectiveness Index

 (TRE)

 greater less than

4-4

or

equal to

~Q.

 TEE shall be as determined by the

following methods:

1)

 If an air oxidation process has more than one

process vent stream, ~

 TRE shall be the more

stringent of either the TRE based upon a

combination of the process vent streains-- or the

23

TRE based upon each individual process vent

stream.

2)

 The TRE of a process vent stream and the TRE of

a

combination of process vent streams, whichever is

applicable, shall be determined according to the

following equation:

TRE

 E’

a

+

bF°

cF

dFH

+

e(FH)~

fF°5

where:

n

 0.88;

TRE

 Total resource effectiveness index;

F

 Vent stream flowrate (scm/mm),

at

a standard temperature of 20°C;

E

 Hourly measured emissions in kg/hr;

H

 Net heating value of vent stream

(MJ/scm), where the net enthalpy

per mole of offgas is based on

combustion at 25°Cand 760

mm

Hg,

but the standard temperature for

determining the volume

corresponding to one mole is 20°C,

as in the definition of “Flow”;

a,b,c,

d,

e

and f

 Coefficients obtained by use of

Appendix D.

3)

 For nonchlorinated process vent streams,

 if the

net heating value, H,

 is greater than 3.6 NJ/scm,

F shall be replaced by F’ for purposes of

calculating TRE.

 F’

 is computed as follows:

F’

FH

3.6

where F and H are as defined in subsection

(c) (2)

 of this Section.

4)

 The actual numerical values used in the equation

described in subsection

 (c) (2) above shall be

determined as follows:

A)

 All reference methods and procedures for

determining the flow,

 (F), hourly emissions,

(E), and net heating,

 (H), value shall be in

accordance with Appendix C.

24

B)

 All coefficients described in subsection

(c)

(2)

 of this Section shall be in accordance

with Appendix D.

(Source:

 Renumbered from Section 218.525 and amended at_Ill.

Reg.

_____,

 effective

_____________________)

Section 218.522

 Savings Clause

The owner or operator of an air oxidation process with a TRE of

1.0 or less shall have complied with the requirements of Section

218.520

(a)

 of this Subpart by the dates set forth in Section

218.106

(a)

and

(b)

 of this Part.

 Sources that are subiect to

218.520

(b)

 of this Subpart that become subject to the control

requirements of 218.520

 (a) of this Subpart after the compliance

dates set out in 218.106

 (a) and

 (b) of this Part shall comply

with the timetable set forth within Section 218.520

 (b).

(Source:

 Added atIll.

 Reg.

 effective_______________

Section 218.523

 Compliance

The emissions limitations for air oxidation processes located in

Section 218.520

(a)

 of this Subpart are applicable to air

oxidation processes on October 25, 1994.

~

 An owner or operator of an air oxidation process with

a

TRE of 6.0 or less that is subiect to the requirements

of Section 218.520(a)

 of this Subpart on October 25,

1994,

 shall com~lvwith the provisions of Section

218.520(a)

 by December 31,

 1999,

 or upon startup of the

emission unit, whichever comes first.

 This subsection

does not supersede the Savings Clause in Section

218.522 of this Part.

~

 An owner or operator of an air oxidation process that

becomes subject to the requirements of Section

218.520(a)

 of this Subpart after October 25.

 1994, the

effective date of that Section shall comply with the

requirements of Section 218.520(a) upon startup of the

emission unit.

(Source:

 Added at 18 Ill.

 Reg.

 effective________________

Section 218.524

 Determination of Applicability

~j

 Sources subject to the requirements of Section

218.520(a)

 of this Subpart either through application

of 218.520(c)

 of this Subpart or through continued

application under 218.522 of this Subpart shall

continue to be subject to the applicable limitations

even if operations change so as to result in a TRE that

is above that which initially made the regulation

applicable to the source’s operations.

25

~

 Notwithstanding Section 218.520(c) of this Subpart, any

air oxidation process that utilizes a combustion device

to control process vent streams at any time shall

maintain the process in compliance with the provisions

of Section 218.520(a) of this Subpart at all times

thereafter.

(Source:

 Added at 18

 Ill. Reg.

 effective______________

Section 218.525

 Emission Limitations for Air Oxidation Processes

(Renumbered)

(Source:

 Section 218.525 renumbered to Section 218.520 at 18

Ill.

 Reg.

____________

 effective

_________________________)

Section 218.Appendix C

Reference Teat Methods For Air Oxidation Proccoceciand Procedures

Introduction

This Appendix presents the reference methods and procedures

required for implementing Reasonably Available Control Technology

(RACT).

 Methods and procedures are identified for two types of

RACT implementation:

a)

 Determination of VON destruction efficiency for evaluating

compliance with the 98 weight percent VOM reduction or 20

ppmv emission limit specified in Sections 215.520 218.520

through 215.527 218.527 of this Part and

b)

 Determination of offgas flowrate, hourly emissions and

stream net heating value for calculating TRE.

All reference methods identified in this Appendix refer to the

reference methods specified at 40 CFR 60, Appendix A,

incorporated by reference in Section 215.105 218.112 of this

Part.

VOM DESTRUCTION EFFICIENCY DETERMINATION

The following reference methods and procedures are required for

determining compliance with the percent destruction efficiency

specified in Sections 215.520 218.520 through 215.527 218.527 of

this Part.

a)

 Reference Method 1 or lA for selection of the sampling site.

The control device inlet sampling site for determination of

vent stream molar composition or total organic compound

destruction efficiency shall be prior to the inlet of any

control device and after all recovery devices.

b)

 Reference Methods

 2, 2A,

 2C or 2D for determination of the

volumetric flowrate.

26

c)

 Reference Method

 3 to measure oxygen concentration of the

 air dilution correction.

 The emission sample shall be

corrected to

 3 percent oxygen.

ci)

 Reference Method 25

 (a) to determine the concentration of

total organic compounds (minus methane and ethane)

 in the

control device outlet and total organic compound reduction

efficiency of the control device.

TRE DETERMINATION

The following reference methods and procedures are required for

determining the offgas flowrate, hourly emissions,

 and the net

heating value of the gas combusted to calculate the vent stream

TRE.

a)

 Reference Method

 1 or 1A for selection of the sampling site.

The sampling site for the vent stream flowrate and molar

composition determination prescribed in

(b)

and

(c)

 shall be

prior to the inlet of any combustion device, prior to any

post-reactor dilution of the stream with air and prior to

any post—reactor introduction of halogenated compounds into

the vent stream.

 Subject to the preceding restrictions on

the sampling site,

 it shall be after the final recovery

device.

 If any gas stream other than the air oxidation vent

stream is normally conducted through the recovery system of

the affected facility, such stream shall be rerouted or

turned off while the vent stream is sampled, but shall be

routed normally prior to the measuring of the initial value

of the monitored parameters for determining compliance with

 the recommended PACT.

 If the air oxidation vent stream is

normally routed through any equipment which is not a part of

the air oxidation process as defined in 35 Ill.

 Adin. Code

211.122 211.350,

 such equipment shall be bypassed by the

vent stream while the vent stream is sampled, but shall not

be bypassed during the measurement of the initial value of

the monitored parameters for determining compliance with

Subpart V.

b)

 The molar composition of the vent stream shall be determined

using the following methods:

1)

 Reference Method 18 to measure the concentration of all

organics, including those containing halogens, unless a

significant portion of the compounds of interest are

polymeric (high molecular weight), can polymerize

before analysis or have low vapor pressures,

 in which

case Reference Method 25(a)

 shall be used.

2)

 ASTN D1946-67

 (reapproved 1977),

 incorporated by

reference in Section 215.105 218.112 of this Part, to

measure the concentration of carbon monoxide and

hydrogen.

27

3)

 Reference Method

 4 to measure the content of water

vapor,

 if necessary.

c)

 The volumetric flowrate shall be determined using Reference

Method 2,

2A,

 2C or 2D,

 as appropriate.

d)

 The net heating value of the vent stream shall be calculated

 using the following equation:

n

H=K

E

 CiHi

i=1

Where:

H

 Net heating value of the sample,

 NJ/scm, where the

net enthalpy per mole of offgas

 is based on

combustion at 25°Cand 760 mm Hg, but the standard

temperature for determining the volume

corresponding to one mole is 20°C,as in the

definition of F (vent stream flowrate) below.

K

 Constant, 1.740 x ~

 (1/ppm)

 (mole/scm)

 (MJ/kcal)

where standard temperature for mole/scm is 20°C.

Ci

 Concentration of sample component

 i, reported on a

wet basis,

 in ppm, as measured by Reference Method

18 or ASTM D1946-67 (reapproved 1977),

incorporated by reference in Section 215.105

218.112 of this Part.

Hi

 Net heat of combustion of sample component i,

kcal/mole based on combustion at 25°Cand 760

 nuii

Hg.

 If published values are not available or

cannot be calculated, the heats of combustion of

vent stream components are required to be

determined using ASTM D2382-76,

 incorporated by

reference in Section 215.105 218.112 of this Part.

e)

 The emission rate of total organic compounds in the process

vent stream shall be calculated using the following

equation:

n

E=K

F

E

 CiMi

i=1

Where:

E

 Emission rate of total organic compounds (minus

methane and ethane)

 in the sample in kg/hr;

K

 Constant 2.494 x l0~(1/ppm)

 (mole/scm)

 (kg/g)

(min/hr), where standard temperature for

(mole/scm)

 is 20°C;

28

Mi

 Molecular weight of sample component

 i (g/mole);

F

 Vent stream flowrate (scm/mm), at a standard

temperature of 20°C.

f)

 The total vent stream concentration (by volume)

 of compounds

containing halogens

 (ppmv,

 by compound) shall be summed from

the individual concentrations of compounds containing

halogens which were measured by Reference Method

18.

(Source:

 Amended at _I11.

 Reg.

 effective

__________)

29

TITLE

35:

ENVIRONMENTAL

PROTECTION

SUBTITLE

AIR

POLLUTION

CHAPTER

POLLUTION

CONTROL

BOARD

SUBCHAPTER

EMISSIONS

STANDARDS

AND

LIMITATIONS

FOR

STATIONARY

SOURCES

PART

219

ORGANIC

MATERIAL

EMISSION

STANDARDS

AND

LIMITATIONS

FOR

THE

CHICAGO

AREA

SUBPART

ORGANIC

EMISSIONS

FROM

STORAGE

AND

OPERATIONS

_______

Applicability

for

VOL

________

Control

Requirements

 for Storage Containers of VOL

Storage Containers of VPL

Loading Operations

Petroleum Liquid Storage Tanks

External Floating Roofs

Compliance Dates -(Repealed)

Compliance Plan

 (Repealed)

Testing VOL Operations

Monitoring VOL Operations

Recordkeeping and Reporting for VOL Operations

SUBPART V:

 AIR OXIDATION PROCESSES

________

 Emission Limitations for Air Oxidation Processes

Definitions

 (Repealed)

________

 Savings Clause

________

 Compliance

_______

 Determination of Applicability

Emission Limitations for Air Oxidation Processes

(Renumbered)

219.526

Testing

and

Monitoring

219.527

 Compliance Date

 (Repealed)

AUTHORITY:

 Implementing Section 10 and authorized by Section

28.5 of the Environmental Protection Act

415

 ILCS 5/10 and 28.5

(1992)

SUBPART B:

 ORGANIC EMISSIONS FROM STORAGE

AND

LOADING OPERATIONS

Section 219.119

 Applicability for VOL

The limitations

 of Section 219.120 of this Subpart shall apply to

all

storage

containers

volatile

organic

liquid

(VOL)

with

maximum true vapor pressure of 0.5 psia or greater in any

stationary

tank,

reservoir,

other

container

151

cubic

Section

219.119

219.120

219.121

219.122

219.123

219.124

219.125

219.126

219.127

219.128

219.129

Section

219.520

219.521

219.522

219.523

219.524

219.525

meters

 (40,000 gal) capacity or greater, except to vessels as

provided below:

30

~j

 Vessels with a capacity greater than or equal to 40,000

gallons storing a

 liquid with a maximum true pressure

of less than 0.5 psia

~j

 Vessels of coke oven by—product plants

ci

 Pressure vessels designed to operate in excess of 29.4

psia and without emissions to the atmosphere

~.1

 Vessels permanently attached to mobile vehicles such as

trucks, rail cars,

 barges,

 or ships

~j

 Vessels storing petroleum liquids; or

~j.

 Vessels used to store beverage alcohol.

gi

 Vessels with storage capacity less than 40,000 gallons

must comply with Section 219.129(f).

(Source:

 Added at _____Ill. Req.

 effective____________

Section 219.120

 Control Requirements for Storage Containers

of VOL

~j

 Every owner or operator storing VOL in a vessel of

40,000 gallons or greater with a maximum true vapor

pressure equal to 0.75 psia but less than 11.1 psia

shall reduce VON emissions from storage tanks,

reservoirs,

 or other containers as follows:

 Each fixed roof tank shall be equipped with an internal

floating roof that meets the following

 specifications

or that is equipped with a vapor control system that

meets the specifications contained in subsection

 (a) (4)

below:

~j

 The internal floating roof shall rest or

float on the liquid surface

 (but not

necessarily in complete contact with it)

inside a storage vessel that has a fixed

roof.

 The internal floating roof shall be

floating on the liquid surface at all times,

except during initial fill and during those

intervals when the storage vessel

is

completely emptied and subseguently refilled.

 When the roof is resting on the le~supports.

the process of filling, emptying, or

refilling shall be continuous and shall be

accomplished as rapidly as possible.

Dl

 Each internal floating roof shall be equipped

with one of the following closure devices

between the wall of the storage vessel and

the edge of the internal floating roof:

31

j)

 A foam— or liquid—filled seal mounted in

contact with the liquid

 (liquid-mounted

seal).

 A liquid—mounted seal means a

foam- or liquid-filled seal mounted in

contact with the liquid between the wall

of the storage vessel and the floating

roof continuously around the

circumference of the tank

.~jJJ.

Two

seals mounted one above the other so

that each forms a continuous closure

that completely covers the space between

the wall of the storage vessel and the

edge of the internal floating roof.

The

lower seal may be vapor—mounted, but

both must be continuous;

or

iii)

 A mechanical shoe seal,

 which is a metal

sheet held vertically against the wall

of the storage vessel by springs or

weighted levers and

 is connected by

braces to the floating roof.

 A flexible

coated fabric

 (envelope)

 scans the

annular space between the metal sheet

 and the floating roof.

Qj

 Each opening in a noncontact internal

floating roof except for automatic bleeder

vents (vacuum breaker vents)

 and the rim

space vents

 is to provide a prolection below

the liquid surface.

Q1

 Each opening in the internal floating roof

except for le~sleeves, automatic bleeder

vents,

 rim space vents, column wells,

 ladder

wells,

 sample wells, and stub drains

 is to be

equipped with a cover or lid which is to be

maintained in a closed position at all times

(i.e.,

 no visible gap) except when the device

is in actual use.

 The cover or lid shall be

equipped with a gasket.

 Covers on each

access hatch and automatic gauge float well

shall be bolted except when they are in use.

~

 Automatic bleeder vents shall be equipped

with a gasket and are to be closed at all

times when the roof is floating except when

the roof is being floated off or

 is being

landed on the roof leg supports.

 Rim space vents shall be equipped with a

gasket and are to be set to open only when

the internal floating roof is not floating or

at the manufacturer’s recommended setting.

32

Qj

 Each penetration of the internal floating

roof for the purpose of sampling shall be a

sample well.

 The sample well shall have a

slit fabric cover that covers at least 90

percent of the o’Pening.

~fl.

 Each penetration of the internal floating

roof that allows for passage of a ladder

shall have a gasketed sliding cover.

2.1

 During the next scheduled tank cleaning or before

March 15,

 2004, whichever comes first, each

internal floating roof tank shall meet the

specifications set forth in subsection

 (a) (1) (A)

through

(H)

 above.

 Each external floating roof tank shall meet the

following specifications:

~j

 Each external floating roof shall be equipped

with a closure device between the wall of the

storage vessel and the roof edge. The closure

device is to consist of two seals, one above

the other.

 The lower seal is referred to as

the primary~sea1,and the upper seal is

referred to as the secondary seal.

jj

 Except as provided in Section

219.127(b) (4) of this Subpart, the

primary seal shall completely cover the

annular space between the edge of the

floating roof and tank wall and shall be

either a liquid mounted seal or a shoe

seal.

~JJ

 The secondary seal shall completely

cover the annular space between the

external floating roof and the wall of

the storage vessel in a continuous

fashion except as allowed in Section

 219.127(b) (4)

 of this Subpart.

iii) The tank shall be equipped with the

closure device after the next scheduled

tank cleaning, but no later than March

15,

 2004.

Dl

 Except for automatic bleeder vents and rim

space vents1

 each opening in a noncontact

external floating roof shall provide a

projection below the liquid surface. Except

for automatic bleeder vents, rim space vents,

roof drains, and leg sleeves, each opening in

the roof is to be equipped with a crasketed

33

cover,

 seal,

 or lid that is to be maintained

in_a_closed position at all times

 (i.e., no

visible

 crap)

 except when the device is in

actual use. Automatic bleeder vents are to be

closed at all times when the roof is floating

except when the roof is being floated off or

is being landed on the roof le~supports. Rim

vents are to be set to open when the roof

is

being floated off the roof

 lecr supports or at

the

manufacturer’s recommended settincr.

Automatic bleeder vents and rim space vents

are to be gasketed. Each emercrency rc~ofdrain

is to be provided with a slotted membrane

fabric cover that covers at least

 90 percent

of the area of the opening.

.QL

 The roof shall be floating on the liquid at

 all times

 (i.e., off the roof leg su~~orts)

except when the tank is completely emptied

and subsequently refilled. The process of

filling,

 emptying, or refilling when the roof

is resting on the leg supports shall be

continuous and shall be accomplished as

rapidly as possible.

41

 A closed vent sYstem and control device

r~pective1vshall meet the followir~g

specifications:

~

 The closed vent sYstem shall be designed to

collect all VON vapors

 arid gases discharged

from the storage vessel and operated with no

detectable emissions as indicated by an

instrument reading of less than 500

 PpLm above

background and visual inspections, as

determined by the methods specified in 40 CF~

60.485(c),

 incorporated

 reference at

Section 219.112(d)

 of this Part.

 The control device shall be designed and

oPerated to reduce inlet VOM emissions by 95

percent or greater. If a flare

 is used as th~

control device,

 it shall meet the

specifications described in the aeneral

control device requirements of 40 CFR 60.18.

incorporated by reference at Section

219.112(d)

 of this Part.

~

 An alternative emission control plan equivalent to

the requirements of subsection

 (a) (1),

 fal (2),

(a) (3), or

 (a) (4)

 above that has been approved by

the

Agency and the USEPA in a federally

enforceable permit or as a SIP revision.

34

~j

 The owner or operator of each storage vessel with a

design capacity eaual to or greater than 40,000 gallons

which contain VOL that,

 as stored, has a maximum true

vapor pressure greater than or equal to 11.1 psia shall

equip each storage vessel with a closed vent system and

control device as specified in subsection

 (a) (4)

 above.

cj

 Notwithstanding subsection

(b)

 of this section, where

an owner or operator can demonstrate that the control

device installed on a storage vessel on or before

December 31,

 1992,

 was designed to reduce inlet VOM

emissions by greater than or equal to 90 percent but

less than 95 percent, the control device shall be

operated to reduce inlet VON emission by 90 percent or

greater.

(Source:

 Added at

 Ill. Reg.

 effective_____________

Section 219.121

 Storage Containers of VPL

No person shall cause or allow the storage of any V~Lvolatile

petroleum liquid

 (VPL) with a vapor pressure of 17.24

 10.34 kPa

31~

psia)

 or greater at 294.3°K(70°F) or any gaseous organic

material in any stationary tank, reservoir or other container of

 more than 151 cubic meters

 (40,000 gal) capacity unless such

tank,

 reservoir or other container:

a)

 Is a pressure tank capable of withstanding the vapor

pressure of such liquid or the pressure of the gas, so

as to prevent vapor or gas loss to the atmosphere at

all times;

orT

b)

 Is designed and equipped with one of the following

vapor loss control devices:

1)

 A floating roof which rests on the surface of the

~QL

and is equipped with a closure seal or

seals between the roof edge and the tank wall.

Such floating roof shall not be permitted if the

ZGL ~

 has a vapor pressure of 86.19 kPa

 (12.5

psia)

 or greater at 294.3°K(70°F). No person

shall cause or allow the emission of air

contaminants into the atmosphere from any gauging

or sampling devices attached to such tanks,

 except

during sampling or maintenance operations.

2)

 A vapor recovery system consisting of:

A)

 A vapor gathering system capable of

collecting 85

 or more of the uncontrolled

VON that would be otherwise emitted to the

atmosphere; andT

B)

 A vapor disposal system capable of processing

35

such VON so as to prevent its emission to the

atmosphere.

 No person shall cause or allow

the emission of air contaminants into the

 atmosphere from any gauging or sampling

devices attached to such tank, reservoir or

other container except during sampling.

3)

 Other equipment or means of equal efficiency

approved by the Agency according to the provisions

of 35 Ill. Adm. Code 201, and further processed

consistent with Section 219.108.

(Source:

 Amended at_Ill.

 Reg.

 effective

)

Section 219.125

 Compliance Dates

Every owner or operator of a VOL or VPL storage vessel subject to

the requirements of this Subpart shall comply with the

requirements of this Subpart in accordance with the compliance

schedule specified in the applicable subsection below:

~j

 Every owner or operator of a VPL storage vessel of the

type included

 in Sections 219.121,

 219.123 and 219.124

of this Subpart shall have complied with the

requirements of Sections 219.121, 219.123 and 219.124

by the date set forth in Section 219.106(a)

or

fb)

of

this Part.

~j

 Every owner or operator of a VOL storage vessel of the

type identified in Section 219.119 of this Subpart

shall comply with the requirements of Section 219.120

of this Subpart as follows:

31

 For fixed roof tanks

 (Section 219.120(a) (1)

of

this Subpart), by March 15,

 1996.

31

 For internal floating roof tanks

 (Section

 219.120 (a) (2) of this Subpart), either during the

next scheduled tank cleaning or by March 15,

 2004,

whichever comes first

31

 For external floating roof tanks

 (Section

219. 120 (a) (3)

 of this Subpart), either during the

next scheduled tank cleaning or by March 15,

 2004,

whichever comes first; and

41

 For closed vent system and control device equipped

tanks

 (Section 219.120(a) (4) of this Subpart), by

March

15,

 1996.

(Source:

 Added at

 Ill. Reg._,

 effective

Section 219.127

 Testing VOL Operations

36

The owner or operator of each storage vessel specified in Section

219.119 of this Subpart shall comply with the requirements of

subsection

 (a),

 (b), or

(c)

 below.

 The applicable subsection for

a particular storage vessel depends on the control eguipment

installed to meet the requirements of this Subpart.

~

 After installing the control equipment necessary for

the source to comply with the requirements of Section

219.120(a) (1)

or

 (2) of this Subpart

 (permanently

affixed roof and internal floating roof), each owner or

operator shall:

31

 Visually inspect the internal floating roof, the

primary seal, and the secondary seal

 (if one is

in

service)

 prior to filling the storage vessel with

VOL.

 If there are holes,

 tears, or other openings

in the primary seal,

 the secondary seal,

 or the

seal fabric or defects in the internal floating

roof,

 or both, the owner or operator shall repair

the items before filling the stora~evessel.

31

 For vessels equipped with a liquid-mounted or

mechanical shoe primary seal, visually inspect the

internal floating roof and the primary seal or the

secondary seal

 (if one is in service)

 through

manholes and roof hatches on the fixed roof at

least once every 12 months after initial fill.

If

the internal floating roof is not resting on the

surface of the VOL inside the storage vessel,

or

if there is liquid accumulated on the roof, or if

the seal is detached, or if there are holes or

tears in the seal fabric, the owner or operator

shall repair the items or empty and remove the

storage vessel from service within 45 days.

 If a

failure that is detected during inspections

required in this subsection cannot be repaired

within 45 days and if the vessel cannot be emptied

within 45 days,

 the owner or operator may reauest

a 30-day extension from the Agency in the

inspection report required in Section

219.129(a) (3) of this Subpart. Such a request for

an extension must document that alternate storage

 capacity is unavailable and specify a schedule of

actions the owner or operator will take that will

assure that the control equipment will be repaired

or the vessel will be emptied within 30 days.

31

 For vessels equipped with both primary and

secondarY seals

~j.

 Visually inspect the vessel as specified in

subsection

 (a) (4) below at least every

5

years; or

37

 Visually inspect the vessel as specified in

subsection

 (a) (2) above.

41

 Visually inspect the internal floating roof, the

primary seal, the secondary seal (if one is in

service), gaskets, slotted membranes,

 and sleeve

seals

 (if any) each time the storage vessel is

emptied and degassed.

 If the internal floating

roof has defects, the primary seal has holes,

tears, or other openings in the seal,

 or if the

seal fabric or the secondary seal has holes,.

tears,

 or other openings in the seal,

 or if

the

seal fabric or the gaskets no longer close off the

liquid surfaces from the atmosphere,

 or if the

slotted membrane has more than 10 percent open

area,

 the owner or operator shall repair the items

as necessary so that none of the conditions

specified j~this subsection exists before

refilling the storage vessel with VOL. In no event

 shall inspections conducted in accordance with

this provision occur at intervals greater than 10

years in the case of vessels sublect to the annual

visual inspection as specified in subsections

(a) (2)

and

 (a) (3) (B) above and at intervals

rio

greater than

 5 years in the case of vessels

specified in subsection

 (a) (3) (A) above.

~J..

Notify the Agency in writing at least 30 days

prior to the filling or refilling of each storage

vessel for which an inspection is required by

subsections

 (a) (1) and

 (a) (4)

 above to afford the

Agency the opportunity to have an observer

present. If the inspection required by subsection

(a) (4)

 above is not planned and the owner or

operator could not have known about the inspection

30 days in advance of refilling the tank,

the

owner or operator shall notify the Agency at least

7 days prior to the refilling of the storage

vessel. Notification shall be made by telephone

immediately followed by written documentation

demonstrating why the inspection was unplanned.

Alternatively, this notification including the

written documentation may be made in writing and

sent by express mail so that it is received by the

Agency at least

 7 days prior to the refilling.

~

 The owner or operator of external floating roof tanks

shall:

31

 Determine the gap areas and maximum gap widths

 between the primary seal and the wall of the

storage vessel and between the secondary seal and

the wall of the storage vessel.

38

~,j

 Measurements of gaps between the tank wall

and the primary seal

 (seal gaps)

 shall be

performed during the hydrostatic testing of

the vessel or within 60 days after the

initial fill with VOL and at least once every

5 years thereafter.

 Measurements of gaps between the tank wall

and the secondary seal shall be performed

within 60 days after the initial fill with

VOL and at least once per year thereafter.

~j

 If any source ceases to store VOL for a

period of

 1 year or more,

 subsequent

introduction of VOL into the vessel shall be

considered an initial fill for the purposes

of subsections

 (b) (1) (A) and

 (b) (1) (B)

 above.

31

 Determine gap widths and areas in the primary and

secondary seals individually according to the

following procedures:

~J

 Measure seal gaps.

 if any,

 at one or more

floating roof levels when the roof is

floating off the roof leg supports

 Measure seal gaps around the entire

circumference of the tank in each place where

a 1/8 inch in diameter uniform probe passes

freely

 (without forcing or binding against

 seal) between the seal and the wall of the

storage vessel and measure the

circumferential distance of each such

location; and

Qj

 Determine the total surface area of each gap

described in subsection

 (b) (2) (B) above by

using probes of various widths to measure

accurately the actual distance from the tank

wall to the seal and multiplying each such

width by its respective circumferential

distance.

31

 Add the gap surface area of each gap location for

the primary seal and the secondary seal

individually and divide the sum for each by the

nominal diameter of the tank and compare each

ratio to the respective standards in subsection

(b) (4)

 below.

41

 Make necessary repairs or empty the storage vessel

within 45 days after identification in any

inspection for seals not meeting the requirements

listed

 in subsections

 (b) (4) (A)

and

(B)

 below:

39

~j

 The accumulated area of gaps between the tank

wall and the mechanical shoe or liquid-

mounted ~rimarv seal shall not exceed 10 in.2

per foot of tank diameter,

 and the width of

any portion of any g~pshall not exceed 1.5

in. There are to be no holes, tears,

 or other

openings in the shoe,

 seal fabric, or seal

envelope.

 The secondary seal is to meet the following

requirements:

31

 The secondary seal

 is to be installed

above the primary seal so that it

completely covers the space between the

roof edge and the tank wall except as

provided in subsection

 (b) (2) (C)

 above.

jjj

 The accumulated area of gaps between the

tank wall and the secondary seal used in

combination with a metallic shoe or

liquid-mounted primary seal shall not

exceed 1.0 in.2 per foot of tank

diameter, and the width of any portion

of any gap shall not exceed 0.5

in.

There shall be no gaps between the tank

wall and the secondary seal when used in

combination with a vapor mounted primary

seal.

iii)

 There are to be no holes, tears,

or

other openings in the seal or seal

fabric.

~

 If a failure that is detected during

inspections required in Section 219.127(b) (1)

of this Subpart cannot be repaired within 45

days and if the vessel cannot be emptied

within 45 days.

 the owner or operator may

request a 30-day extension from the Agency in

the inspection report required in Section

219.129(b) (4)

 of this Subpart.

 Such extension

request must include a demonstration of

unavailability of alternate storage capacity

and a specification of a schedule that will

assure that the control equipment will be

 repaired or the vessel will be emptied as

soon as possible.

~j

 Notify the Agency 30 days in advance of any gap

measurements required by subsection

 (b) (1)

 above

to afford the Agency the opportunity to have an

observer present.

40

~

 Visually inspect the external floating roof,

the

primary seal,

 secondary seal, and fittings each

time the vessel

 is emptied and degassed.

~

 If the external floating roof has defects,

if

the primary seal has holes,

 tears, or other

openings in the seal or the seal fabric, or

if the secondary seal has holes,

 tears, or

other openings in the seal or the seal

fabric, the owner or operator shall repair

the items as necessary so that none of the

conditions specified in this subsection exist

before filling or refilling the storage

vessel with VOL.

 For all the inspections required by

subsection

 (b) (6)

 above,

 the owner or

operator shall notify the Agency

 in writing

at least 30 days prior to the filling or

refilling of each storage vessel to afford

the Agency the opportunity to inspect the

storage vessel prior to refilling.

 If the

inspection required by subsection

 (b) (6)

above is not planned and the owner or

 operator could not have known about the

inspection 30 days

 in advance of refilling

the tank,

 the owner or operator shall notify

the Agency at least

 7 days prior to the

refilling of the storage vessel. Notification

shall be made by telephone immediately

followed by written documentation

demonstrating why the inspection was

unplanned. Alternatively, this notification

including the written documentation may be

sent by express mail so that it is received

by the Agency at least

 7 days prior to the

refilling.

ci

 The owner or operator of each source that is equipped

with a closed vent system and a flare to meet the

requirements of Section 219.120 (a) (4)

 of this Subpart

shall meet the requirements specified in the general

control device requirements of 40 CFR 60.18(e)

and

 (f),

incorporated by reference at Section 219.112(d)

 of this

Part.

(Source:

 Added at

—

 Ill. Reg.

 effective_______________

Section 219~.128

 Monitoring VOL Operations

~j

 Except as provided in subsection

 (d) below, the owner

or operator of each storage vessel with a design

capacity greater than or equal to 40,000 gallons

storing a liquid with a maximum true vapor pressure

41

that

 is normally less than 0.75 psia shall notify the

Agency within 30 days when the maximum true vapor

pressure of the liquid exceeds 0.75 psia.

~j

 Available data on the storage temperature may be used

to determine the maximum true vapor pressure.

31

 For vessels operated above or below ambient

temperatures, the maximum true vapor pressure is

calculated based upon the highest expected

calendar—month average of the storage temperature.

For vessels operated at ambient temperatures, the

maximum true vapor pressure is calculated based

upon the maximum local monthly average ambient

temperature as reported by the National Weather

Service.

31

 For other liquids,

 the vapor pressure:

~j

 Determined by ASTM Method D2879-83,

incorporated by reference at Section

219.112(a) (1)

 of this Part

 Measured by an appropriate method approved by

the Agency and USEPA;

or

~j

 Calculated by an appropriate method approved

by the Agency and USEPA.

ci

 The owner or operator of each vessel storing a mixture

of indeterminate or variable composition shall be

sublect to the following:

31

 Prior to the initial filling of the vessel, the

maximum true vapor pressure for the range of

anticipated liquid compositions to be stored will

be determined using the methods described in

subsection

(b)

 above.

31

 For vessels in which the vapor pressure of the

anticipated liquid composition is

 0.5 psia or

greater but less than 0.75 psia.

 an initial

physical test of the vapor pressure

 is required;

a

physical test at least once every

 6 months

thereafter

 is required as determined by the

following methods:

~j

 ASTM Method D2879-83,

 incorporated by

reference at Section 219.112(a) (1)

 of this

Part; or

 ASTM Method D323-82,

 incorporated by

reference at Section 219.112 (a) (25)

 of this

Part;

or

42

~j

 As measured by an appropriate method approved

Agency.

~j

 The owner or operator of each vessel equipped with a

closed vent system and control device meetinq the

specifications of Section 219.120 of this Subpart

is

exempt from the requirements of subsections

 (a) and

(b)

above.

(Source:

 Added at

—

 Ill.

 Reg.

 effective

_______________

Section 219.129

 Recordkeeping and Reporting for VOL

Operations

The owner or operator of each storage vessel specified in Section

219.120(a)

 of this Subpart shall maintain records and furnish

reports as required by subsection

 (a),

 (b). or

 (c) below as

appropriate for the control equipment installed to meet the

requirements of Section 219.120.

 The owner or operator shall

keep copies of all reports and records required by this Section.

except for the records required by subsection

 (c) (1)

 below,

for

at least

 3 years.

 The records required by subsection

 (c) (1)

 below

shall be kept for the life of the control equipment.

~

 After installing control equipment in accordance with

Section 219.120(a) (1)

or

 (2) of this Subpart (fixed

roof and internal floating roof). the owner or operator

shall:

31

 Furnish the Agency with a report that describes

the control equipment and certifies that the

control equipment meets the specifications of

Sections 219.120(a) (1)

 and 219.127(a) (1)

 of this

Subpart

31

 Keen a record of each inspection performed as

required by Section 219.127 (a) (1).

 (a) (2),

 (a) (3),

and

 (a) (4)

 of this Subpart. Each record shall

identify the storage vessel on which the

inspection was performed and shall contain the

date the vessel was inspected and the observed

condition of each component of the control

equipment (seals, internal floating roof,

and

fittings)

31

 If any of the conditions described in Section

219.127 (a) (2)

 of this Subpart are detected during

the annual visual inspection required by Section

219.127(a) (2), report to the Agency within 30 days

after the inspection. The identity of the storage

vessel, the nature of the defects, and the date

the storage vessel was emptied or the nature of

and date the repair was made; and

43

41

 After each inspection required by Section

219.127(a) (3)

 of this Subpart where holes or tears

in the seal or seal fabric,

 or defects in the

internal floating roof,

 or other control equipment

defects listed in Section 219.127 (a) (3) (B)

 of this

Subpart are discovered, report to the Agency

within 30 days after the inspection the identity

of the storage vessel and the reason it did not

meet the specifications of Section 219.120(a) (1)

or

(2)

 or Section 219.127(a)

 of this Subpart. and

list each repair made.

~j

 After installing control equipment in accordance with

Section 219.120(a) (3)

 of this Subpart

 (external

floating roof), the owner or operator shall:

31

 Furnish the Agency with a report that describes

the control equipment and certify that the control

equipment meets the specifications of Sections

219.120(a) (3) and 219.127(b) (2),

 (b)(3), and

(b) (4)

 of this Subpart

31

 Within 60 days after performing the seal gap

measurements required by Section 219.127(b) (1)

of

this Subpart, furnish the Agency with a report

that contains:

~j

 The date of measurement

 The raw data obtained in the measurement; and

~j

 The calculations of this Subpart described in

Section 219.127(b) (2) and

 (b)(3)

 of this

Subpart

31

 Maintain records of each gap measurement performed

as required by Section 219.127(b)

 of this Subpart.

Such records shall identify the storacre vessel in

which the measurement was performed and shall

contain:

~j

 The date of measurement

 The raw data obtained in the measurement; and

Qj

 The calculations described in Section

219.127(b) (2) and

 (b) (3) of this Subpart

41

 After each seal gap measurement that detects gaps

exceeding the limitations specified by Section

219.127(b) (4) of this Subpart, submit a report to

the Agency within 30 days after the inspection

identifying the vessel and containing the

information specified in subsection

 (b) (2) above

44

and the date the vessel was emptied or the repairs

were made and the date of repair.

ci

 After installing control equipment in accordance with

Section 219.120(a) (4)

 of this Subpart

 (closed vent

system and control device other than a flare). the

owner or operator shall maintain the following records:

31

 A copy of the operating plan; and

31

 The measured values of the parameters monitored in

accordance with Section 219.127(c) (2)

 of this

Subpart.

~j

 After installing a closed vent system and flare to

comply with Section 219.127 of this Subpart, the owner

or operator shall:

31

 Provide the Agency with a report containing the

measurements required by 40 CFR 60.18

 (f) (1).

 (2).

(3),

 (4),

 (5). and

 (6). incorporated by reference

at Section 219.112(d)

 of this Part,

 within

6

months after the initial start-up date

31

 Maintain records of all periods of operation

during which the flare pilot flame

 is absent; and

31

 Report semiannually all periods recorded under 40

CFR 60.115b(d) (2), incorporated by reference at

Section 219.112(d)

 of this Part,

 in which the

pilot flame was absent.

~

 The owner or operator shall maintain all records

required by this Section, except for the records

required by subsection

(f)

 below,

 for at least

 3 years.

The records required by subsection

 (f) below shall be

kept for the life of the source.

.~j

 The owner or operator of each storage vessel specified

in Section 219.119 of this Subpart shall maintain

readily accessible records of the dimension of the

storage vessel and an analysis of the capacity of the

storage vessel. Each storage vessel with a design

capacity less than 40,000 gallons is subiect to no

provision of this Part other than those required by

maintaining readily accessible records of the

dimensions of the storage vessel and analysis of the

capacity of the storage vessel.

gi

 Except as provided in Section 219.128

(c)

and

 (d) of

this Subpart, the owner or operator of each storaae

vessel subject to the requirements in Section 219.120

with a design capacity greater than or equal to 40,000

gallons storing a liquid with a maximum true vapor

45

pressure ~reater than or equal to 0.5 psia but less

than 0.75 psia shall maintain a record of the VOL

storage, the period of storage, and the maximum true

vapor pressure of the VOL during the respective storage

period.

(Source:

 Added at

—

 Ill. Reg.

 effective____________

SUBPART V:

 AIR OXIDATION PROCESSES

Section

219.520219.525

Emission

Limitations

for

Air

Oxidation

Processes

a)

 No person shall cause or allow the emission of VON from

any process vent stream unless the process vent stream

vented

 to a combustion device which

 is designed and

operated either:

reduce

the

volatile

organic

emissions

vented

with

efficiency

least

ninety

eight

percent

 (98)

 by weight;

or

2)

 To emit VON at a concentration less than twenty

parts

per

million

volume,

dry

basis.

Combustion

Device

Phthalic

Anhydride

Air

Oxidation

Process

Notwithstanding subsection

(a)

 above, and subject

to subsection

 (b) (2)

 below, no person shall cause

or allow the emissions of VON through an existing

combustion device at an phthalic anhydride air

oxidation process, unless the combustion device

is

operated to achieve:

~j

90

 control of the volatile organic emissions

vented

it;

VON

emissions

concentration

less

than

parts per million by volume, dry basis.

~‘~-

 oxida~’-’~-~occoo

‘~jr’y~

~trt’~im

frir

tih4t~h

31

31

existing combustion device subiect to

subsection

 (b) (1) above i3 employed to control

proceo~

VON

cmiQoion~iis ~

 required to meet the

98 percent emissions limit until set forth

in

subsection

 (a) above either upon replacing the

combustion

device

replaced

for

~jy

other

reasons, which 3hall be conoidcred to include

including,

but

not—se

limited

to,

normal

maintenance, malfunction, accident, and

obsolescence,

 or the date of December 31,

 1999,

whichever comes first.

~e

 ~ combustion device is

considered to be replaced when

46

*~)

All of the device

 is replaced; or

2-D)

 When the cost of the repair of the device or

the cost of replacement of part of the device

exceeds 50

 of the cost of replacing the

entire device with a device which complies.

c)

 The limitations of subsection

(a)

 above shall do not

apply to any process vent stream or combination of

process vent streams which hae with a Total Resource

Effectiveness Index

 (TRE)

 greater less than 4-~-~

or

egual to ~Q.

 TRE shall be e~sdetermined by the

following methods:

1)

 If an air oxidation process has more than one

process vent stream,

~

 TRE shall be the more

stringent of either the TRE based upon a

combination of the process vent streams-- or the

TRE based upon each individual process vent

stream.

2)

fl~

TRE of a process vent stream and the TRE of a

combination of process vent streams, whichever is

applicable,

 shall be determined according to the

following equation:

TRE

 E’

a

+

bF°

cF

dFH

+

e(FH)°

+

fF°5

where:

n

 0.88;

TRE

 Total resource effectiveness index;

F

 Vent stream flowrate (scm/mm), at

a standard temperature of 20°C;

E

 Hourly measured emissions in kg/hr;

H

 Net heating value of vent stream

(NJ/scm), where the net enthalpy

per mole of offgas is based on

combustion at 25°Cand 760 mm Hg,

but the standard temperature for

determining the volume

corresponding to one mole is 20°C,

as in the definition of “Flow”;

a,b,c,

d, e

and f=

 Coefficients obtained by use of

Appendix

D.

3)

 For nonchlorinated process vent streams,

 if the

47

net heating value,

H,

 is greater than 3.6 NJ/scm,

F shall be replaced by

 F’ for purposes of

calculating TRE.

 F’ is computed as follows:

F’

FH

/

3.6

where F and H are as defined in subsection

(c)

(2)

 of this Section.

4)

 The actual numerical values used in the equation

described in subsection

(c)

(2)

 above shall be

determined as follows:

A)

 All reference methods and procedures for

determining the flow,

 (F), hourly emissions,

(E), and net heating,

 (H), value shall be in

accordance with Appendix C.

B)

 All coefficients described in subsection

(c)

(2)

 of this Section shall be in accordance

with Appendix D.

(Source:

 Section 219.520 renumbered from Section 219.525 and

amended at ~~Ill,

 Reg.

_____,

 effective

___________________)

Section 219.522

 Savings Clause

The owner or operator of an air oxidation process with a TRE of

1.0 or less shall have complied with the requirements of Section

219.520

(a)

 of this Subpart by the dates set forth in Section

219.106

 (a) and

(b)

 of this Part.

 Sources that are subject to

219.520

(b)

 of this Subpart that become subject to the control

requirements of 219.520

(a)

 of this Subpart after the compliance

dates set out in 219.106

 (a) and

(b)

 of this Part shall comply

with the timetable set forth within Section 219.520

 (b).

(Source:

 Added at.111.

 Reg.

 effective

____________

Section 219.523

 Compliance

The emissions limitations for air oxidation processes located in

Section 219.520

(a)

 of this Subpart are applicable to air

oxidation processes on October 25.

 1994.

~j

 An owner or operator of an air oxidation process with a

TRE of 6.0 or less that is sublect to the requirements

of Section 219.520(a)

 of this Subpart on October 25,

1994,

 shall comply with the provisions of Section

219.520(a) by December 31,

 1999,

 or upon startup of the

emission unit, whichever comes first.

 This subsection

does not supersede the Savings Clause in Section

219.522 of this Part.

~j

 An owner or operator of an air oxidation process that

48

becomes sublect to the requirements of Section

219.520(a)

 of this Subpart after October 25,

 1994,

shall comply with the requirements of Section

219.520(a)

 upon startup of the emission unit.

(Source:

 Added at

 Ill.

 Reg.

 effective

____________

Section 219.524

 Determination of Applicability

~j

 Sources subiect to the requirements of Section

219.520(a)

 of this Subpart either throu~happlication

of 219.520(c) of this Subpart or through continued

application under 219.522 of this Subpart shall

continue to be subiect to the applicable limitations

even if operations chance so as to result in a TRE that

is above that which initially made the regulation

applicable to the source’s operations.

~j.

 Notwithstanding Section 219.520(c)

 of this Subpart, any

air oxidation process that utilizes a combustion device

to control process vent streams at any time shall

maintain the process in compliance with the provisions

of Section 219.520(a)

 of this Subpart at all times

thereafter.

(Source:

 Added at

—

 Ill. Reg.

______,

 effective

_____________

Section 219.525

 Emission Limitations for Air Oxidation Processes

(Renumbered)

(Source:

 Section 219.525 renumbered to Section 219.520 at 18

Ill.

 Reg.

______________

 effective

__________________________)

Section 219.Appendix C

Reference Test Methods For Air Oxidation Procc~oc~an

Introduction

This Appendix presents the reference methods and procedures

required for implementing Reasonably Available Control Technology

(RACT).

 Methods and procedures are identified for two types of

PACT

 implementation:

a)

 Determination of VON destruction efficiency for evaluating

compliance with the 98 weight percent VON reduction or 20

ppmv emission limit specified in Sections 215.520 219.520

through 215.527 219.527 of this Part and

b)

 Determination of offgas flowrate, hourly emissions and

stream net heating value for calculating TRE.

All reference methods identified in this Appendix refer to the

reference methods specified at 40 CFR 60, Appendix A,

incorporated by reference in Section 215.105 219.112 of this

49

Part.

VON DESTRUCTION EFFICIENCY DETERMINATION

The following reference methods and procedures are required for

determining compliance with the percent destruction efficiency

specified in Sections 215.520 219.520 through 215.527

 219.527 of

this Part.

a)

 Reference Method

 1 or 1A for selection of the sampling site.

The control device inlet sampling site for determination of

vent stream molar composition or total organic compound

destruction efficiency shall be prior to the inlet of any

control device and after all recovery devices.

b)

 Reference Methods

2,

2A,

 2C or 2D for determination of the

volumetric flowrate.

c)

 Reference Method

3

 to measure oxygen concentration of the

air dilution correction.

 The emission sample shall be

corrected to

 3 percent oxygen.

d)

 Reference Method 25

 (a) to determine the concentration of

total organic compounds (minus methane and ethane)

 in the

control device outlet and total organic compound reduction

efficiency of the control device.

TRE DETERMINATION

The following reference methods and procedures are required for

determining the offgas flowrate, hourly emissions, and the net

heating value of the gas combusted to calculate the vent stream

TRE.

a)

 Reference Method

 1 or 1A for selection of the sampling site.

The sampling site for the vent stream flowrate and molar

composition determination prescribed in

 (b) and

(c)

 shall be

prior to the inlet of any combustion device, prior to any

post-reactor dilution of the stream with air and prior to

any post-reactor introduction of halogenated compounds into

 the vent stream.

 Subject to the preceding restrictions on

the sampling site,

 it shall be after the final recovery

device.

 If any gas stream other than the air oxidation vent

stream is normally conducted through the recovery system of

the affected facility, such stream shall be rerouted or

turned off while the vent stream is sampled, but shall be

routed normally prior to the measuring of the initial value

of the monitored parameters for determining compliance with

the recommended

PACT.

 If the air oxidation vent stream is

normally routed through any equipment which is not a part of

the air oxidation process as defined in 35 Ill. Adm. Code

211.122

 211.350, such equipment shall be bypassed by the

vent stream while the vent stream is sampled, but shall not

be bypassed during the measurement of the initial value of

50

the monitored parameters for determining compliance with

Subpart V.

b)

 The molar composition of the vent stream shall be determined

using the following methods:

1)

 Reference Method 18 to measure the concentration of all

organics,

 including those containing halogens, unless a

significant portion of the compounds of interest are

polymeric (high molecular weight), can polymerize

before analysis or have low vapor pressures,

 in which

case Reference Method 25(a)

 shall be used.

2)

 ASTM D1946—67

 (reapproved 1977),

 incorporated by

reference in Section 215.105 219.112 of this Part, to

measure the concentration of carbon monoxide and

hydrogen.

3)

 Reference Method

 4 to measure the content of water

vapor,

 if necessary.

c)

 The volumetric flowrate shall be determined using Reference

Method

2,

2A,

 2C or 2D,

 as appropriate.

d)

 The net heating value of the vent stream shall be calculated

using the following equation:

n

H

K

E

 CiHi

i=l

Where:

H

 Net heating value of the sample, MJ/scm, where the

net enthalpy per mole of offgas is based on

combustion at 25°Cand 760 mm Hg, but the standard

temperature for determining the volume

corresponding to one mole is 20°C,as

 in the

definition of F

 (vent stream flowrate) below.

K

 Constant,

 1.740 x 10~~(1/ppm)

 (mole/scm)

 (MJ/kcal)

where standard temperature for mole/scm is 20°C.

Ci

 Concentration of sample component i, reported on a

wet basis,

 in ppm,

 as measured by Reference Method

18 or ASTM D1946—67

 (reapproved 1977),

incorporated by reference in Section 215.105

219.112 of this Part.

Hi

 Net heat of combustion of sample component i,

kcal/mole based on combustion at 25°Cand 760 mm

Hg.

 If published values are not available or

cannot be calculated, the heats of combustion of

vent stream components are required to be

determined using ASTM D2382-76, incorporated by

51

reference in Section 215.105 219.112 of this Part.

e)

 The emission rate of total organic compounds in the process

vent stream shall be calculated using the following

equation:

E=K

F

E

 CiMi

i=1

Where:

E

 Emission rate of total organic compounds (minus

methane

and

ethane)

the

sample

kg/hr;

K

Constant

2.494

lO~ (1/ppm)

(mole/scm)

(kg/g)

(inirz/hr),

where

standard

temperature

for

(mole/scm)

 is 20°C;

Mi

 Molecular weight of sample component

i

 (g/mole);

F

 Vent stream flowrate (scm/mm), at a standard

temperature of 20°C.

f)

 The total vent stream concentration

 (by volume) of compounds

containing halogens

 (ppmv, by compound)

 shall be summed from

the

individual

concentrations

compounds

containing

halogens

which

were

measured

Reference

Method

18.

(Source:

Amended

—

Ill.

Peg.

_______,

effective

_________)

ORDERED.

Dorothy

Gunn,

Clerk

the

Illinois

Pollution

Control

Board,

hereby

certify

that

 the above opii~on~a.ndorder was

adopted

the

.2 ~

~‘

day

________________________,

1994,

vote

~1

Dorothy

G~n,

Clerk

Illinois

Pol1~~itionControl

Board