06-096 

# '- u DEPARTMENT OF ENVIRONMENTAL PRO'rECTION Chapter 111: 

### PETROLEUMLIQUID STORAGEVAPORCONTROL

1. Scope SUMMARY: This regulation requires all owners of fixed roof storage tanks, storing gasoline, crude oil or any petroleum liquid whose vapor pressure is greater than 1.52 psia (10.5 kilo pascals) to install floating roofs to reduce the hydrocarbon vapors lost to the atmosphere. This regulation prohibits the emptying and degassing of petroleum storage vessels for the purpose of performing a complete inspection on days for which the Department has issued an ozone health ·advisory beginning January 1, 2000 and between June 1 and August 31 each yearbeginningJanuary 1, 2004. A complete inspection shall be performed at least once every ten (

### 1 0) years and each time the vessel is emptied and degassed.

A. This regulation applies in all ambient air quality regions ofthe State ofMaine. B. This regulation applies to all fixed roofstorage vessels with capacities greaterthan 150,000 liters (39,000 gallons) containing volatile petroleum liquids whose true vapor pressure is greater than 10.5 kilo pascals (1.52 psia) or a Reid vapor pressure of4 psi. Such fixed roof storage vessels are subject to New Source Performance Standards as ofthe dates specified in and in accordance with the requirements contained in 40 CFR, Part 60, Subparts K, Ka, and Kb. 

### C. Section 

### 5(B) ofthis regulation shall apply to all fixed roofstorage vessels with capacities greater than 150,000 liters (39,000 gallons) containing volatile petroleum liquids whose true vapor pressure is greaterthan 1.0 psiabut less than 1.52 psia. 

### 2. Prohibition A. No owner or operator ofa fixed roofstorage vessel shall permit or suffer the use ofsuch vessels unless: (1) The vessels have been retrofitted with an internal floating roofequipped with a closure s.eal, or seals, to reduce the visual space between the roofedge and tank wall; orthe vessels have been retrofitted with equally effective alternative control as approved by the Commissioner and

### th~ United States Environmental Protection Agency; (2) The vessel is maintained such that there are no visible holes, tears, or other openings in the seal or any seal fabric or materials; (3) All openings except stub drains are equipped with covers, lids, or seals suchthat:

, I (a? the**co~er,** lid, o.r seal is in the closed position at all times exceptwhen in actual use; (b) automatic bleeder vents are closed at all times except when the roof is being floated off or being landed on the roofleg supports: and (C) rim vents. ifprovided. are set to open only when the roofis being floated offthe roofleg supports or at the manufacturer's recommended setting;06-096 DEPARTMENT OF ENVIRONMENTALPROTECTION
(4) Routine visual inspections are conductedthr<;>ughroofhatches once every month; and (5) A complete inspection ofcover and seal is performed at least once every ten (l0) years and each time the vessel is emptied and degassed. These inspections shall be conducted by visually inspecting the floating roofdeck, deck fittings, and rim seals from within the storage vessel. The inspection may be performed entirely from the top side ofthe floating roof, as long as there is visual access to all deck components. 

### B. Between January 1, 2000 and December 31,2003, the Department shall be notified seventy-two (72) hours in advance ofplans to empty and degas any storage vessel, and no owner or operator of any fixed roofstorage vessel shall empty and degas any storage vessel for the purpose ofperforming a complete inspection on those days for which the Department has issued an ozone health warning pursuantto 38 MRSA §584-F. C. BeginningJanuary 1, 2004, no owneroroperator ofany fixed roofstorage vessel shall empty and degas any storage vessel for the purpose ofperforming a complete inspection between June 1 and August 31 ofeach calendaryear. D. Notwithstanding subsections (2)(B) and (2)(C) ofthis Chapter, an owner or operator may empty and degas a fixed roof storage vessel for the purpose ofperforming a repair which is immediately necessary for the proper function ofthe vessel. An owner or operator must notify the Department within 24 hours ifa fixed roofstorage vessel is emptied and degassed underthis section. 3. Emission Testing. The determination of compliance under this section may be made by visual inspection of the floating cover through the roof hatches by Department staff or other qualified representatives oftheDepartment. The source shall be found in compliance if: A. The seal has no visible holes, tears, or other openings and is uniformly in place around the circumference ofthe cover between the cover and tankwell; B. The cover is uniformly floating on or above the liquid and there are no visible holes, tears, or other openings in the surface ofthe cover and no liquid is accumulated on the cover; and 

### C. All records are beingpr?perly maintained. 4. Transition Schedule. The owner or operator offixed-roofpetroleum storage vessels located in Air Quality Control Regions III, IV and V shall have until July 1, 1991, to comply with the requirements under subsection (2)(A). In Air Quality Control Regions 

### ill, IV and V, the owner or operator ofa fixed-roof petroleum storage vessel without a floating roof or other acceptable volatile organic**comp~und** emission control equipment shall adhere to the increments of progress contained in the following schedule
..and shall report to the department within 15 days ofthe prescribed deadline the status ofcbmpliance with each increment ofprogress. A. Final plans for the floating roof. other necessary modifications or other acceptable volatile organic compound emission control equipment shall be submitted beforeNovember 

### 1. 1989.

Chapter Ill: PetroleumLiquid Storage Vapor Control

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-06-096 DEPARTMENTOF ENVIRONMENTALPROTECTION
B. Contracts for installation ofthe floating roof, other modifications or other acceptable volatile organic compound emission control equipment or purchase orders for component parts shall be issued before March 1, 1990. C. Initiation ofon-site construction orinstallation ofacceptable volatile organic compound emission control equipment shall begin before July 1, 1990. D. Final compliance shall be achieved before July 1, 1991. 

### 5. Records A. The owner or operator ofa fixed roofstorage vessel governed bythis regulation shall assure the following records are maintained for a minimum oftwo years. These records shall be available for inspection during normal business hours and copies shall be provided to the Commissioneror his representative upon request: (1) Reports ofthe results ofinspections conducted under subsections (2)(A)(4) and (2)(A)(5); (2) A record ofthe monthly throughput quantities and types of volatile petroleum liquids for each storagevessel and period ofstorage; and (3) Records ofthe average monthly storage temperatures and true vapor pressures ofvolatile petroleum liquids stored. B. The owner or operator of a fixed roof storage vessel with capacity greater than 150,000 liters (39,000 gallons) containing volatile petroleum liquids whose true vapor pressure is greater than 1.0 psia but less than 1.52 psia. shall assure the following records are maintained for a minimum oftwo years. These records shall be available for inspection during normal business hours and copies shall beprovidedto the Commissionerorhis representative upon request: (1) Records of the average monthly storage temperatures, the type of petroleum liquid, and maximumtrue vapor pressures ofvolatile petroleum liquids stored.



### -.· AUTHORITY: 38 M.R.S.A., Section 585, 585-A EFFECTNEDATE: May 7, 1979 Amended: September 21, 1988 Amended: October 3, 1989 Amended: November 3, 1990 Amended: 

### 5'e_/'Te.A-t

### 6 Pr d. '71 

### I 

## 'l'1'/

BASIS STATEMENT

Chapter Ill: Petroleum Liquid Storage Vapor Control

- .) 

### -06-096

# ~

# D~ARTMENT OF ENVIRONMENTAL PROTECTION Gasoline is a hydrocarbon vapor that aids the formation ofozone in the atmosphere. It is necessary to control such liydrocarbon vapors present in the atmosphere because Maine is violating the federal ozone ambient air quality standard. This regulation controls the maximum amount ofgasoline emissions so to reduce the ozone formed. 

### BASIS STATEMENTFORAMENDMENT OFAUGUST 10,1988 This amendment expanded the scope of the regulation to include all Ambient Air Quality Control Regions in the State. Uncontrolled gasoline storage terminals in the Downeast and Central Maine Ambient Air Quality Control Regions have been estimated as emitting over 800 tons of hydrocarbons annually. The use offloating roofs and vapor control systems (Chapters Ill and 112) for bulk gasoline terminals is considered Best Practical Treatmentand will reduce emissions by about 94 percent. 

### BASIS STATEMENTFORAMENDMENT OFSEPTEMBER27, 1989 This amendment corrected certain minor deficiencies identified by the U.S. Environmental Protection Agency in the State Implementation Plan and for consistency with State statute. The U.S. Environmental Protection Agency also commented on requiring facilities which store more than 39,000 gallons of petroleum products with a true vapor pressure greater than 1.0 psi to maintain records ofthe average

.monthly temperature and the maximum true vapor pressure. The Department agrees with the comment. This will enable the Departmentto determine ifstorage tanks storing liquids with vapor pressure close to 1.52 psi are subjectto the regulation. 

### BASIS STATEMENTFORAMENDMENT OF SEPTEMBER26, 1990 Duringthe !14th Session ofthe Maine Legislature, the Board ofEnvironmental Protection was given the authority under 38 M.R.S.A. 585 and 585-A to establish and amend emission standards and regulations to implement ambient air quality standards and emission standards. This rule was amended to reflect the new authority under statute. No request for public hearing nor comments were received on the reauthorization. 

### BASIS STATEMENTFORAMENDMENT OFAUGUST 19, 1999 This amendment decreases the petroleum storagevessel inspection frequency requirement from annually to everyten years as required bythe U.S. Environmental Protection Agency, thereby reducing the overall volatile organic compound (VOC) emissions from this activity. In addition to reducing the inspection frequency requirement, the rule was also amended to prohibitthe emptying and degassing ofpetroleum storage vessels for the purpose ofperforming a complete inspection on days for which the Department has issued an ozone health advisory between January 1, 2000 and December 31, 2003 and betweenJune 1and August 31 each year beginning January 1, 2004. In addition to**th~** Basis Statement above, the Department has filed with the Secretary ofState response to**representativ~.**commerrts received during the comment period.

Chapter Ill: Petroleum Liquid Storage Vapor ComrolA PT;:D FOR FlUNG


### TO: SecretaryofState

# ~~~J 

# I ATTN:Administrative Procedure Officer State House Station 329 Augusta, Maine 04333 l. AGENCY: Department ofEnvironmental Protection 2. AGENCY UMBRELLA AND UNIT#: 06-096 3. TITLE OF RULE(S): PetroleumLiquid Storage Vapor Control 4. CHAPTERNUMBER ASSIGNEDTO THE RULE(S): Chapter 111 

### 5. DATE(S)/METHOD(S) OFNOTICE: On July 23, 1998 in the Kennebec Journal and on August 5, 1998, December 30, 1998 and March 31, 1999 in the Kennebec Journal, Portland Press Herald, BangorDailyNews, Lewiston SunJournal, and Waterville Morning Sentinel. Based on comments received at the hearing, a substantial change was made to the rule. Therefore, an additional commentperiod of30 days was required: 12/30/98-2/2/99. At the Board's March 10, 1999 meeting a substantial change was made and an additional commentperiod was required: 3/31199-4/30/99 6. DATE(S)/PLACE(S) OF HEARINGS(S): August 26, 1998 1:30 P.M.



### 7.



### 8. TYPE OF RULE: Holiday Inn/Ground Round Augusta, Maine. 

### D New Rule • AmendmentofExisting Rule 

### D Emergency Rule 

### D Repeal ofExisting rule 

## D Suspension ofExisting Rule NAME/PHONE OF AGENCY CONTACT PERSON: 207-287-2437. Carolyn Wheeler at


### 9. CERTIFICATION STATEMENT: 

### I. Martha Kirkpatrick. hereby certifythat the attached is a true copv ofthe rule described above and lawfullv adopted bv the Board ofEnvironmental Protection on Aue:ust 19. 1999. 

### SIGNAJURE:_·

# ___.__~~- __,_,

# ·c:....::J..C-""-1'=~:::__~ _()z
______ -hrfhLL..!..-------- PRINTED !\AME 

### &TITLE: Martha Kirkoarrick. Commissioner 

### lO. APPROVED as ro for 

### 9/23/99

PRINTED 

### I'-iAME:
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