TABLE 1
(OAR 340-244-0040)

LIST OF HAZARDOUS AIR POLLUTANTS

CAS Number

Chemical Name

75-07-0

Acetaldehyde

60-35-5

Acetamide

75-05-8

Acetonitrile

98-86-2

Acetophenone

53-96-3

2-Acetylaminofluorene

107-02-8

Acrolein

79-06-1

Acrylamide

79-10-7

Acrylic acid

107-13-1

Acrylonitrile

107-05-1

Allyl chloride

92-67-1

4-Aminobiphenyl

62-53-3

Aniline

90-04-0

o-Anisidine

1332-21-4

Asbestos

71-43-2

Benzene (including benzene from gasoline)

92-87-5

Benzidine

98-07-7

Benzotrichloride

100-44-7

Benzyl chloride

92-52-4

Biphenyl

117-81-7

Bis(2-ethylhexyl) phthalate (DEHP)

 542-88-1

Bis(chloromethyl)ether

75-25-2

Bromoform

106-99-0

1,3-Butadiene

156-62-7

Calcium cyanamide

133-06-2

Captan

63-25-2

Carbaryl

75-15-0

Carbon disulfide

56-23-5

Carbon tetrachloride

463-58-1

Carbonyl sulfide

120-80-9

Catechol

133-90-4

Chloramben

57-74-9

Chlordane

7782-50-5

Chlorine

79-11-8

Chloroacetic acid

532-27-4

2-Chloroacetophenone

108-90-7

Chlorobenzene

510-15-6

Chlorobenzilate

67-66-3

Chloroform

107-30-2

Chloromethyl methyl ether

126-99-8

Chloroprene

1319-77-3

Cresols/Cresylic acid (isomers and mixture)

95-48-7

o-Cresol

108-39-4

m-Cresol

106-44-5

p-Cresol

98-82-8

Cumene

94-75-7

2,4-D, salts and esters

3547-04-4

DDE

334-88-3

Diazomethane

132-64-9

Dibenzofurans

96-12-8

1,2-Dibromo-3-chloropropane

84-74-2

Dibutylphthalate

106-46-7

1,4-Dichlorobenzene(p)

91-94-1

3,3-Dichlorobenzidene

111-44-4

Dichloroethyl ether (Bis(2-chloroethyl)ether)

542-75-6

1,3-Dichloropropene

62-73-7

Dichlorvos

111-42-2

Diethanolamine

121-69-7

N,N-Diethyl aniline (N,N-Dimethylaniline)

64-67-5

Diethyl sulfate

119-90-4

3,3-Dimethoxybenzidine

60-11-7

Dimethyl aminoazobenzene

119-93-7

3,3’-Dimethyl benzidine

79-44-7

Dimethyl carbamoyl chloride

68-12-2

Dimethyl formamide

57-14-7

1,1-Dimethyl hydrazine

131-11-3

Dimethyl phthalate

77-78-1

Dimethyl sulfate

534-52-1

4,6-Dinitro-o-cresol, and salts

51-28-5

2,4-Dinitrophenol

121-14-2

2,4-Dinitrotoluene

123-91-1

1,4-Dioxane (1,4-Diethyleneoxide)

122-66-7

1,2-Diphenylhydrazine

106-89-8

Epichlorohydrin (l-Chloro-2,3-epoxypropane)

106-88-7

1,2-Epoxybutane

140-88-5

Ethyl acrylate

100-41-4

Ethyl benzene

51-79-6

Ethyl carbamate (Urethane)

75-00-3

Ethyl chloride (Chloroethane)

106-93-4

Ethylene dibromide (Dibromoethane)

107-06-2

Ethylene dichloride (1,2-Dichloroethane)

107-21-1

Ethylene glycol

151-56-4

Ethylene imine (Aziridine)

75-21-8

Ethylene oxide

96-45-7

Ethylene thiourea

75-34-3

Ethylidene dichloride (1,1-Dichloroethane)

50-00-0

Formaldehyde

76-44-8

Heptachlor

118-74-1

Hexachlorobenzene

87-68-3

Hexachlorobutadiene

77-47-4

Hexachlorocyclopentadiene

67-72-1

Hexachloroethane

822-06-0

Hexamethylene-1,6-diisocyanate

680-31-9

Hexamethylphosphoramide

110-54-3

Hexane

302-01-2

Hydrazine

7647-01-0

Hydrochloric acid

7664-39-3

Hydrogen fluoride (Hydrofluoric acid)

123-31-9

Hydroquinone

78-59-1

Isophorone

58-89-9

Lindane (all isomers)

108-31-6

Maleic anhydride

67-56-1

Methanol

72-43-5

Methoxychlor

74-83-9

Methyl bromide (Bromomethane)

74-87-3

Methyl chloride (Chloromethane)

71-55-6

Methyl chloroform (1,1,1-Trichloroethane)

60-34-4

Methyl hydrazine

74-88-4

Methyl iodide (Iodomethane)

108-10-1

Methyl isobutyl ketone (Hexone)

624-83-9

Methyl isocyanate

80-62-6

Methyl methacrylate

1634-04-4

Methyl tert butyl ether

101-14-4

4,4-Methylene bis(2-chloroaniline)

75-09-2

Methylene chloride (Dichloromethane)

101-68-8

Methylene diphenyl diisocyanate (MDI)

101-77-9

4,4-Methylenedianiline

91-20-3

Naphthalene

98-95-3

Nitrobenzene

92-93-3

4-Nitrobiphenyl

100-02-7

4-Nitrophenol

79-46-9

2-Nitropropane

684-93-5

N-Nitroso-N-methylurea

62-75-9

N-Nitrosodimethylamine

59-89-2

N-Nitrosomorpholine

56-38-2

Parathion

82-68-8

Pentachloronitrobenzene (Quintobenzene)

87-86-5

Pentachlorophenol

108-95-2

Phenol

106-50-3

p-Phenylenediamine

75-44-5

Phosgene

7803-51-2

Phosphine

7723-14-0

Phosphorus

85-44-9

Phthalic anhydride

1336-36-3

Polychlorinated biphenyls (Aroclors)

1120-71-4

1,3-Propane sultone

57-57-8

beta-Propiolactone

123-38-6

Propionaldehyde

114-26-1

Propoxur (Baygon)

78-87-5

Propylene dichloride (1,2-Dichloropropane)

75-56-9

Propylene oxide

75-55-8

1,2-Propylenimine (2-Methyl aziridine)

91-22-5

Quinoline

106-51-4

Quinone

100-42-5

Styrene

96-09-3

Styrene oxide

1746-01-6

2,3,7,8-Tetrachlorodibenzo-p-dioxin

79-34-5

1,1,2,2-Tetrachloroethane

127-18-4

Tetrachloroethylene (Perchloroethylene)

7550-45-0

Titanium tetrachloride

108-88-3

Toluene

95-80-7

2,4-Toluene diamine

584-84-9

2,4-Toluene diisocyanate

95-53-4

o-Toluidine

8001-35-2

Toxaphene (chlorinated camphene)

120-82-1

1,2,4-Trichlorobenzene

79-00-5

1,1,2-Trichloroethane

79-01-6

Trichloroethylene

95-95-4

2,4,5-Trichlorophenol

88-06-2

2,4,6-Trichlorophenol

121-44-8

Triethylamine

1582-09-8

Trifluralin

540-84-1

2,2,4-Trimethylpentane

108-05-4

Vinyl acetate

593-60-2

Vinyl bromide

75-01-4

Vinyl chloride

75-35-4

Vinylidene chloride (1,1-Dichloroethylene)

1330-20-7

Xylenes (isomers and mixture)

95-47-6

o-Xylenes

108-38-3

m-Xylenes

106-42-3

p-Xylenes

0

Antimony Compounds

0

Arsenic Compounds (inorganic including arsine)

0

Beryllium Compounds

0

Cadmium Compounds

0

Chromium Compounds

0

Cobalt Compounds

0

Coke Oven Emissions

0

Cyanide Compounds1

0

Glycol ethers2

0

Lead Compounds

0

Manganese Compounds

0

Mercury Compounds

0

Fine mineral fibers3

0

Nickel Compounds

0

Polycyclic Organic Matter4

0

Radionuclides (including radon)5

0

Selenium Compounds

NOTE: For all listings above that contain the word "compounds" and for glycol ethers, the following applies: Unless otherwise specified, these listings are defined as including any unique chemical substance that contains the named chemical (i.e., antimony, arsenic, etc.) as part of that chemical’s infrastructure.

*1 X’CN where X = H’ or any other group where a formal dissociation may occur. For example KCN or Ca(CN)2
*2 Glycol ethers include mono- and di-ethers of ethylene glycol, diethylene glycol, and triethylene glycol R-(OCH2CH2)n-OR’.

Where:

n = 1, 2, or 3;
R = alkyl C7 or less; or
R = phenyl or alkyl substituted phenyl;
R’ = H, or alkyl C7 or less; or
OR’ consisting of carboxylic acid ester, sulfate, phosphate, nitrate, or sulfonate. Does not include ethylene glycol monobutyl ether (EGBE, 2-Butoxyethanol)(CAS No. 111-76-2).

*3 Includes mineral fiber emissions from facilities manufacturing or processing glass, rock, or slag fibers (or other mineral derived fibers) of average diameter 1 micrometer or less.
*4 Includes organic compounds with more than one benzene ring, and which have a boiling point greater than or equal to 100°C.
*5 A type of atom which spontaneously undergoes radioactive decay.

Stat. Auth.: ORS 468 & 468A
Stats Implemented: ORS 468.020 and 468A.025.
Hist.: DEQ 13-1993, f. & cert. Ef. 9-24-93; DEQ 2-1996, f..& cert. Ef.1-2-96; DEQ 20-1997, f. & cert. Ef. 9-25-97; DEQ 2-2005, f. & cert. ef. 2-10-05; DEQ 2-2006, f. & cert. ef. 3-14-06; DEQ 13-2006, f. & cert. Ef. 12-22-06

TABLE 2
(OAR 340-244-0120)

LIST OF EARLY REDUCTIONS HIGH-RISK POLLUTANTS

CAS Number

Chemical Name

Weighing Factor

53-96-3

2-Acetylaminofluorene

100

107-02-8

Acrolein

100

79-06-1

Acrylamide

10

     

107-13-1

Acrylonitrile

10

1332-21-4

Asbestos

100

71-43-2

Benzene

10

92-87-5

Benzidine

1000

542-88-1

Bis(chloromethyl)ether

1000

106-99-0

1,3-Butadiene

10

57-74-9

Chlordane

100

532-27-4

2-Chloroacetophenone

100

107-30-2

Chloromethyl methyl ether

10

334-88-3

Diazomethane

10

132-64-9

Dibenzofurans

10

96-12-8

1,2-Dibromo-3-chloropropane

10

111-44-4

Dichloroethyl ether

(Bis(2-chloroethyl)ether)

10

79-44-7

Dimethylcarbamoyl chloride

100

122-66-7

1,2-Diphenylhydrazine

10

106-93-4

Ethylene dibromide

10

151-56-4

Ethylenimine (Aziridine)

100

75-21-8

Ethylene oxide

10

76-44-8

Heptachlor

100

118-74-1

Hexachlorobenzene

100

77-47-4

Hexachlorocyclopentadiene

10

302-01-2

Hydrazine

100

 

 

 

60-34-4

Methyl hydrazine

10

624-83-9

Methyl isocyanante

10

62-75-9

N-Nitrosodimethylamine

100

684-93-5

N-Nitroso-N-methylurea

1000

56-38-2

Parathion

10

75-44-5

Phosgene

10

7803-51-2

Phosphine

10

7723-14-0

Phosphorus

10

75-55-8

1,2-Propylenimine

100

1746-01-6

2,3,7,8-Tetrachlorodibenzo-p-dioxin

100,000

8001-35-2

Toxaphene (chlorinated camphene)

100

75-01-4

Vinyl chloride

10

0

Arsenic Compounds

100

0

Beryllium Compounds

10

0

Cadmium Compounds

10

0

Chromium Compounds

100

0

Coke Oven Emissions

10

0

Manganese Compounds

10

0

Mercury Compounds

100

0

Nickel Compounds

10

Stat. Auth.: ORS 468.020 & 468A.310
Stats Implemented: ORS 468A.310.
Hist.: DEQ 13-1993, f. & cert. Ef. 9-24-93; DEQ 24-1994, f. & cert. Ef. 10-28-94; DEQ 2-2005, f. & cert. ef. 2-10-05

TABLE 3
(OAR 340-244-0230)

LIST OF REGULATED TOXIC AND FLAMMABLE SUBSTANCES FOR PURPOSES OF ACCIDENTAL RELEASE PREVENTION

Part A - Regulated Toxic Substances

CAS Number

Chemical Name

Threshold Quantity (lbs.)

107-02-8

Acrolein [2-Propenal]

5,000

107-13-1

Acrylonitrile [2-Propenenitrile]

20,000

814-68-6

Acrylyl chloride [2-Propenoyl chloride]

5,000

107-18-6

Allyl alcohol [2-Propen-l-ol]

15,000

107-11-9

Allylamine [2-Propen-l-amine]

10,000

7664-41-7

Ammonia (anhydrous)

10,000

7664-41-7

Ammonia (concentration 20% or greater)

20,000

7784-34-1

Arsenous trichloride

15,000

7784-42-1

Arsine

1,000

10294-34-5

Boron trichloride [Borane, trichloro-]

5,000

7637-07-2

Boron trifluoride [Borane, trifluoro-]

5,000

353-42-4

Boron trifluoride compound with methyl ether (1:1) [Boron, trifluoro[oxybis[metane]]-, T-4-

15,000

7726-95-6

Bromine

10,000

75-15-0

Carbon disulfide

20,000

7782-50-5

Chlorine

2,500

10049-04-4

Chlorine dioxide [Chlorine oxide (ClO2)]

1,000

67-66-3

Chloroform [Methane, trichloro-]

20,000

542-88-1

Chloromethyl ether [Methane, oxybis[chloro-]]

1,000

107-30-2

Chloromethyl methyl ether [Methane, chloromethoxy-]

5,000

4170-30-3

Crotonaldehyde [2-Butenal]

20,000

123-73-9

Crotonaldehyde, (E)- [2-Butenal, (E)-]

20,000

506-77-4

Cyanogen chloride

10,000

108-91-8

Cyclohexylamine [Cyclohexanamine]

15,000

19287-45-7

Diborane

2,500

75-78-5

Dimethyldichlorosilane [Silane, dichlorodimethyl-]

5,000

57-14-7

1,1-Dimethylhydrazine [Hydrazine, 1,1-dimethyl-]

15,000

106-89-8

Epichlorohydrin [Oxirane, (chloromethyl)-]

20,000

107-15-3

Ethylenediamine [1,2-Ethanediamine]

20,000

151-56-4

Ethyleneimine [Aziridine]

10,000

75-21-8

Ethylene oxide [Oxirane]

10,000

7782-41-4

Fluorine

1,000

50-00-0

Formaldehyde (solution)

15,000

110-00-9

Furan

5,000

302-01-2

Hydrazine

15,000

7647-01-0

Hydrochloric acid (concentration 37% or greater)

15,000

74-90-8

Hydrocyanic acid

2,500

7647-01-0

Hydrogen chloride (anhydrous) [Hydrochloric acid]

5,000

7664-39-3

Hydrogen fluoride/Hydrofluoric acid (concentration 50% or greater) [Hydrofluoric acid]

1,000

7783-07-5

Hydrogen selenide

500

7783-06-4

Hydrogen sulfide

10,000

13463-40-6

Iron, pentacarbonyl- [Iron carbonyl (Fe(CO)5), (TB-5-11)-]

2,500

78-82-0

Isobutyronitrile [Propanenitrile, 2-methyl-]

20,000

108-23-6

Isopropyl chloroformate [Carbonochloridic acid, 1-methylethyl ester]

15,000

126-98-7

Methacrylonitrile [2-Propenenitrile, 2-methyl-]

10,000

74-87-3

Methyl chloride [Methane, chloro-]

10,000

79-22-1

Methyl chloroformate [Carbonochloridic acid, methylester]

5,000

60-34-4

Methyl hydrazine [Hydrazine, methyl-]

15,000

624-83-9

Methyl isocyanante [Methane, isocyanato-]

10,000

74-93-1

Methyl mercaptan [Methanethiol]

10,000

556-64-9

Methyl thiocyanate [Thiocyanic acid, methyl ester]

20,000

75-79-6

Methyltrichlorosilane [Silane, trichloromethyl-]

5,000

13463-39-3

Nickel carbonyl

1,000

7697-37-2

Nitric acid (concentration 80% or greater)

15,000

10102-43-9

Nitric oxide [Nitrogen oxide (NO)]

10,000

8014-95-7

Oleum (Fuming Sulfuric acid) [Sulfuric acid, mixture with sulfur trioxide]1

10,000

79-21-0

Peracetic acid [Ethaneperoxoic acid]

10,000

594-42-3

Perchloromethylmercaptan [Methanesulfenyl chloride, trichloro-]

10,000

75-44-5

Phosgene [Carbonic dichloride]

500

7803-51-2

Phosphine

5,000

10025-87-3

Phosphorus oxychloride [Phosphoryl chloride]

5,000

7719-12-2

Phosphorus trichloride [Phosphorus trichloride]

15,000

110-89-4

Piperidine

15,000

107-12-0

Propionitrile [Propanenitrile]

10,000

109-61-5

Propyl chloroformate [Carbonochloridic acid, propylester]

15,000

75-55-8

Propyleneimine [Aziridine, 2-methyl-]

10,000

75-56-9

Propylene oxide [Oxirane, methyl-]

10,000

7446-09-5

Sulfur dioxide (anhydrous)

5,000

7783-60-0

Sulfur tetrafluoride [Sulfur fluoride (SF4), (T-4)-]

2,500

7446-11-9

Sulfur trioxide

10,000

75-74-1

Tetramethyllead [Plumbane, tetramethyl-]

10,000

509-14-8

Tetranitromethane [Methane, tetranitro-]

10,000

7550-45-0

Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-]

2,500

584-84-9

Toluene 2,4-diisocyanate [Benzene, 2,4-diisocyanato-1-methyl-]1

10,000

91-08-7

Toluene 2,6-diisocyanate [Benzene, 1,3-diisocyanato-2-methyl-]1

10,000

26471-62-5

Toluene diisocyanate (unspecified isomer) [Benzene, 1,3-diisocyanatomethyl-]1

10,000

75-77-4

Trimethylchlorosilane [Silane, chlorotrimethyl-]

10,000

108-05-4

Vinyl acetate monomer [Acetic acid ethenyl ester]

15,000

1 The mixture exemption in 40 CFR Part 68.115(b)(1) does not apply to the substance.
 

TABLE 3
(OAR 340-244-0230)

LIST OF REGULATED TOXIC AND FLAMMABLE SUBSTANCES FOR PURPOSES OF ACCIDENTAL RELEASE PREVENTION

Part B - Regulated Flammable Substances1

CAS Number

Chemical Name

Threshold Quantity (lbs.)

75-07-0

Acetaldehyde

10,000

74-86-2

Acetylene [Ethyne]

10,000

598-73-2

Bromotrifluorethylene [Ethene, bromotrifluoro-]

10,000

106-99-0

1,3-Butadiene

10,000

106-97-8

Butane

10,000

106-98-9

1-Butene

10,000

107-01-7

2-Butene

10,000

25167-67-3

Butene

10,000

590-18-1

2-Butene-cis

10,000

624-64-6

2-Butene-trans [2-Butene, (E)]

10,000

463-58-1

Carbon oxysulfide [Carbon oxide sulfide (COS)]

10,000

7791-21-1

Chlorine monoxide [Chlorine oxide]

10,000

557-98-2

2-Chloropropylene [1-Propene, 2-chloro-]

10,000

590-21-6

1-Chloropropylene [1-Propene, 1-chloro-]

10,000

460-19-5

Cyanogen [Ethanedinitrile]

10,000

75-19-4

Cyclopropane

10,000

4109-96-0

Dichlorosilane [Silane, dichloro-]

10,000

75-37-6

Difluoroethane [Ethane, 1,1-difluoro-]

10,000

124-40-3

Dimethylamine [Methanamine, N-methyl-]

10,000

463-82-1

2,2-Dimethylpropane [Propane, 2,2-dimethyl-]

10,000

74-84-0

Ethane

10,000

107-00-6

Ethyl acetylene [1-Butyne]

10,000

75-04-7

Ethylamine [Ethanamine]

10,000

75-00-3

Ethyl chloride [Ethane, chloro-]

10,000

74-85-1

Ethylene [Ethene]

10,000

60-29-7

Ethyl ether [Ethane, 1,1’-oxybis-]

10,000

75-08-1

Ethyl mercaptan [Ethanethiol]

10,000

109-95-5

Ethyl nitrite [Nitrous acid, ethyl ester]

10,000

1333-74-0

Hydrogen

10,000

75-28-5

Isobutane [Propane, 2-methyl]

10,000

78-78-4

Isopentane [Butane, 2-methyl-]

10,000

78-79-5

Isoprene [1,3-Butadiene, 2-methyl-]

10,000

75-31-0

Isopropylamine [2-Propanamine]

10,000

75-29-6

Isopropyl chloride [Propane, 2-chloro-]

10,000

74-82-8

Methane

10,000

74-89-5

Methylamine [Methanamine]

10,000

563-45-1

3-Methyl-1-butene

10,000

563-46-2

2-Methyl-1-butene

10,000

115-10-6

Methyl ether [Methane, oxybis-]

10,000

107-31-3

Methyl formate [Formic acid, methyl ester]

10,000

115-11-7

2-Methylpropene [1-Propene, 2-methyl-]

10,000

504-60-9

1,3-Pentadiene

10,000

109-66-0

Pentane

10,000

109-67-1

1-Pentene

10,000

646-04-8

2-Pentene, (E)-

10,000

627-20-3

2-Pentene, (Z)-

10,000

463-49-0

Propadiene [1,2-Propadiene]

10,000

74-98-6

Propane

10,000

115-07-1

Propylene [1-Propene]

10,000

74-99-7

Propyne [1-Propyne]

10,000

7803-62-5

Silane

10,000

116-14-3

Tetrafluoroethylene [Ethene, tetrafluoro-]

10,000

75-76-3

Tetramethylsilane [Silane, tetramethyl-]

10,000

10025-78-2

Trichlorosilane [Silane, trichloro-]

10,000

79-38-9

Trifluorochloroethylene [Ethene, chlorotrifluoro-]

10,000

75-50-3

Trimethylamine [Methanamine, N,N-dimethyl-]

10,000

689-97-4

Vinyl acetate [1-Buten-3-yne]

10,000

75-01-4

Vinyl chloride [Ethene, chloro-]

10,000

109-92-2

Vinyl ethyl ether [Ethene, ethoxy-]

10,000

75-02-5

Vinyl fluoride [Ethene, fluoro-]

10,000

75-35-4

Vinylidene chloride [Ethene, 1,1-dichloro-]

10,000

75-38-7

Vinylidene fluoride [Ethene, 1,1-difluoro-]

10,000

107-25-5

Vinyl methyl ether [Ethene, methoxy-]

10,000

*1 A flammable substance when used as a fuel or held for sale as a fuel at a retail facility is excluded from all provisions of 40 CFR part 68
Stat. Auth.: ORS 468.020 & 468A.310
Stat. Implemented: ORS 468A.025
Hist.: DEQ 13-1993, f. & cert. ef. 9-24-93; DEQ 18-1993, f. & cert. ef. 11-4-93; DEQ 24-1994, f. & ef. 10-28-94; DEQ 2-2005, f. & cert. ef. 2-10-05


TABLE 4

(OAR 340-244-0242)

MANAGEMENT PRACTICES FOR GASOLINE DISPENSING FACILITIES SUBJECT TO STAGE I VAPOR CONTROLS

If owning or operating

The owner or operator must

1. An existing GDF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The permittee must install and operate a vapor balance system on gasoline storage tanks that meets the design criteria in paragraphs (a) through (h).

(a) All vapor connections and lines on the storage tank must be equipped with closures that seal upon disconnect.

(b) The vapor line from the gasoline storage tank to the gasoline cargo tank must be vapor-tight, as defined in OAR 340-244-0030.

(c) The vapor balance system must be designed such that the pressure in the tank truck does not exceed 18 inches water pressure or 5.9 inches water vacuum during product transfer.

(d) The vapor recovery and product adaptors, and the method of connection with the delivery elbow, must be designed so as to prevent the over-tightening or loosening of fittings during normal delivery operations.

(e) If a gauge well separate from the fill tube is used, it must be provided with a submerged drop tube that extends the same distance from the bottom of the storage tank as specified in OAR 340-244-0240(2).

(f) Liquid fill connections for all systems must be equipped with vapor-tight caps.

(g) Pressure/vacuum (PV) vent valves must be installed on the storage tank vent pipes. The pressure specifications for PV vent valves must be: a positive pressure setting of 2.5 to 6.0 inches of water and a negative pressure setting of 6.0 to 10.0 inches of water. The total leak rate of all PV vent valves at an affected facility, including connections, must not exceed 0.17 cubic foot per hour at a pressure of 2.0 inches of water and 0.63 cubic foot per hour at a vacuum of 4 inches of water.

(h) The vapor balance system must be capable of meeting the static pressure performance requirement of the following equation:

Pf = 2e-500.887/v

Where:

Pf = Minimum allowable final pressure, inches of water.

v = Total ullage affected by the test, gallons.

e = Dimensionless constant equal to approximately 2.718.

2 = The initial pressure, inches water.

2. For a new or reconstructed GDF with monthly throughput of 100,000 gallons of gasoline or more, or a new storage tank(s) at an existing GDF with monthly throughput of 100,000 gallons of gasoline or more The permittee must install and operate a dual-point vapor balance system, as defined in OAR 340-244-0030, on each affected gasoline storage tank and comply with the design criteria in item 1 of this Table.

 

TABLE 5

(OAR 340-244-0242)

MANAGEMENT PRACTICES FOR GASOLINE CARGO TANKS UNLOADING AT GASOLINE DISPENSING FACILITIES EQUIPPED WITH STAGE I VAPOR CONTROLS

If owning or operating

The owner or operator must

A gasoline cargo tank .....................

Not unload gasoline into a storage tank at a GDF with stage I vapor controls unless the following conditions are met:

(i) All hoses in the vapor balance system are properly connected,

(ii) The adapters or couplers that attach to the vapor line on the storage tank have closures that seal upon disconnect,

(iii) All vapor return hoses, couplers, and adapters used in the gasoline delivery are vapor-tight,

(iv) All tank truck vapor return equipment is compatible in size and forms a vapor-tight connection with the vapor balance equipment on the GDF storage tank, and

(v) All hatches on the tank truck are closed and securely fastened.

(vi) The filling of storage tanks at GDF must be limited to unloading by vapor-tight gasoline cargo tanks. Documentation that the cargo tank has met the specifications of EPA Method 27 must be carried on the cargo tank.