1. Regulations
  2. title 40
  3. chapter I-i31
  4. part 464
  5. subpart D
  6. § 464.45

Collapse to view only § 464.45 - Pretreatment standards for existing sources.

§ 464.40 - Applicability; description of the zinc casting subcategory.

The provisions of this subpart are applicable to discharges to waters of the United States and to the introduction of pollutants into publicly owned treatment works resulting from zinc casting operations as defined in § 464.02(d).

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.

CITE AS: 40 CFR 464.40

§ 464.41 - Specialized definitions.

For the purpose of this subpart:

(a) Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§ 464.45) and PSNS (§ 464.46) for the zinc subcategory and is comprised of a discrete list of toxic organic pollutants for each process segment where it is regulated, as follows:

(1) Casting Quench (§ 464.45(a) and § 464.46(a)):

21. 2,4,6-trichlorophenol 22. para-chloro meta-cresol 31. 2,4-dichlorophenol 34. 2,4-dimethylphenol 39. fluoranthene 44. methylene chloride (dichloromethane) 65. phenol 66. bis(2-ethylhexyl) phthalate 68. di-n-butyl phthalate 70. diethyl phthalate 85. tetrachloroethylene

(2) Die Casting (§ 465.45(b) and § 464.46(b)):

1. acenaphthene 21. 2,4,6-trichlorophenol 22. para-chloro meta-cresol 24. 2-chlorophenol 34. 2,4-dimethylphenol 44. methylene chloride (dichloromethane) 55. naphthalene 65. phenol 66. bis (2-ethylhexyl) phthalate 68. di-n-butyl phthalate 70. diethyl phthalate 85. tetrachloroethylene 86. toluene 87. trichloroethylene

(3) Melting Furnace Scrubber (§ 464.45(c) and § 464.46(c)):

31. 2,4-dichlorophenol 34. 2,4-dimethylphenol 39. fluoranthene 44. methylene chloride (dichloromethane) 55. naphthalene 65. phenol 66. bis(2-ethylhexyl) phthalate 68. di-n-butyl phthalate 85. tetrachloroethylene 86. toluene 87. trichloroethylene

(4) Mold Cooling (§ 464.45(d) and § 464.46(d)):

21. 2,4,6-trichlorophenol 22. para-chloro meta-cresol 31. 2,4-dichlorophenol 34. 2,4-dimethylphenol 39. fluoranthene 44. methylene chloride (dichloromethane) 65. phenol 66. bis(2-ethylhexyl) phthalate 68. di-n-butyl phthalate 70. diethyl phthalate 85. tetrachloroethylene [50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.

CITE AS: 40 CFR 464.41

§ 464.42 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm 3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/1) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to noncontinuous dischargers.

(a) Casting Quench Operations.

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.03440.0187 Lead (T)0.03530.0174 Zinc (T)0.05090.0192 Oil and grease1.340.446 TSS1.70.67 pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/1) 2(mg/1) 2Copper (T)0.770.420.0076 Lead (T)0.790.390.0098 Zinc (T)1.140.430.0121 Oil and grease30100.223 TSS38150.446 pH( 3)( 3)( 3)

1 kg/1000 kkg (pound per million pounds) of metal poured.

2 These concentrations must be multiplied by the ratio of (5.35/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

3 Within the range of 7.0 to 10.0 at all times.

(b) Die Casting Operations.

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.00660.0036 Lead (T)0.00680.0034 Zinc (T)0.00980.0037 Total phenols0.00740.0026 Oil and grease0.2590.0864 TTS0.3280.13 pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.0015 Lead (T)0.790.390.0019 Zinc (T)1.140.430.0023 Total phenols0.860.30.0017 Oil and grease30100.0432 TSS38150.0864 pH( 3)( 3)( 3)

1 kg/1000 kkg (pound per million pounds) of metal poured.

2 These concentrations must be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

3 Within the range of 7.0 to 10.0 at all times.

(c) Melting Furnace Scrubber Operations.

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/62.3 millions Sm 3 (pounds per billion SCF) of air scrubbed Copper (T)1.560.852 Lead (T)1.60.791 Zinc (T)2.310.872 Total Phenols1.740.608 Oil and grease60.820.3 TSS77.130.4 pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.345 Lead (T)0.790.390.446 Zinc (T)1.140.430.548 Total Phenols0.860.30.406 Oil and grease301010.1 TSS381520.3 pH( 3)( 3)( 3)

1 kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed.

2 These concentrations must be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed for a specific plant.

3 Within the range of 7.0 to 10.0 at all times.

(d) Mold Cooling Operations.

BPT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.3040.166 Lead (T)0.3110.154 Zinc (T)0.4490.17 Oil and grease11.83.94 TSS155.91 pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.067 Lead (T)0.790.390.0867 Zinc (T)1.140.430.106 Oil and grease30101.97 TSS38153.94 pH( 3)( 3)( 3)

1 kg/1,000 kkg (pounds per million pounds) of metal poured.

2 These concentrations must be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

3 Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.

CITE AS: 40 CFR 464.42

§ 464.43 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable, except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm 3 or lb/billion SCF of air scrubbed) effluent limitations for copper, lead, zinc, and total phenols. For non-continuous dischargers, annual average mass limitations and maximum day and maximum for monthly average concentration (mg/1) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.

(a) Casting Quench Operations.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.03440.0187 Lead (T)0.02370.0116 Zinc (T)0.03390.0129
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.0076 Lead (T)0.530.260.0067 Zinc (T)0.760.290.008

1 kg/1,000 kkg (pounds per million pounds) of metal poured.

2 These concentrations must be multiplied by the ratio of (5.34/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

(b) Die Casting Operations.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.00660.0036 Lead (T)0.00460.0022 Zinc (T)0.00660.0025 Total phenols0.00740.0026
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.0015 Lead (T)0.530.260.0013 Zinc (T)0.760.290.0016 Total phenols0.860.30.0017

1 kg/1,000 kkg (pounds per million pounds) of metal poured.

2 These concentrations must be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

(c) Melting Furnace Scrubber Operations.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed Copper (T)1.560.852 Lead (T)1.070.527 Zinc (T)1.540.588 Total phenolse1.740.608
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.345 Lead (T)0.530.260.304 Zinc (T)0.760.290.365 Total phenols0.860.30.406

1 kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed.

2 These concentrations must be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

(d) Mold Cooling Operations.

BAT Effluent Limitations

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.3040.166 Lead (T)0.2090.103 Zinc (T)0.30.114
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.067 Lead (T)0.530.260.0591 Zinc (T)0.760.290.071

1 kg/1,000 kkg (pounds per million pounds) of metal poured.

2 These concentrations must be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.

CITE AS: 40 CFR 464.43

§ 464.44 - New source performance standards.

Any new source subject to this subpart must achieve the following new source performance standards (NSPS), except that non-continuous dischargers shall not be subject to the maximum day and maximum for monthly average mass (kg/1,000 kkg or lb/million lb of metal poured; kg/62.3 million Sm 3 or lb/billion SCF of air scrubbed) effluent standards for copper, lead, zinc, total phenols, oil and grease, and TSS. For non-continuous dischargers, annual average mass standards and maximum day and maximum for monthly average concentration (mg/l) standards shall apply. Concentration standards and annual average mass standards shall only apply to non-continuous dischargers.

(a) Casting Quench Operations.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.03440.0187 Lead (T)0.02370.0116 Zinc (T)0.03390.0129 Oil and grease1.340.446 TSS0.670.536 pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.0076 Lead (T)0.530.260.0067 Zinc (T)0.760.290.008 Oil and grease30100.223 TSS15120.116 pH( 3)( 3)( 3)

1 kg/1,000 kkg (pounds per million pounds) of metal poured.

2 These concentrations must be multiplied by the ratio of (5.34/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

3 Within the range of 7.0 to 10.0 at all times.

(b) Die Casting Operations.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.00660.0036 Lead (T)0.00460.0022 Zinc (T)0.00660.0025 Total phenols0.00740.0026 Oil and grease0.2590.0864 TSS0.130.104 pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.0015 Lead (T)0.530.260.0013 Zinc (T)0.760.290.0016 Total phenols0.860.30.0017 Oil and grease30100.0432 TSS15120.0225 pH( 3)( 3)( 3)

1kg/1,000 kkg (pounds per million pounds) of metal poured.

2These concentrations must be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

3Within the range of 7.0 to 10.0 at all times.

(c) Melting Furnace Scrubber Operations.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed Copper (T)1.560.852 Lead (T)1.070.527 Zinc (T)1.540.588 Total phenols1.740.608 Oil and grease60.820.3 TSS30.424.3 pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.345 Lead (T)0.530.260.304 Zinc (T)0.760.290.365 Total phenols0.860.30.406 Oil and grease301010.1 TSS15125.27 pH( 3)( 3)( 3)

1 kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed.

2 These concentrations must be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.

3 Within the range of 7.0 to 10.0 at all times.

(d) Mold Cooling Operations.

NSPS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.3040.166 Lead (T)0.2090.103 Zinc (T)0.30.114 Oil and grease11.83.94 TSS5.914.73 pH( 1)( 1)

1 Within the range of 7.0 to 10.0 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.067 Lead (T)0.530.260.0591 Zinc (T)0.760.290.071 Oil and grease30101.97 TSS15121.03 pH( 3)( 3)( 3)

1 kg/1,000 kkg (pounds per million pounds) of metal poured.

2 These concentrations must be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

3 Within the range of 7.0 to 10.0 at all times.

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.

CITE AS: 40 CFR 464.44

§ 464.45 - Pretreatment standards for existing sources.

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.

(a) Casting Quench Operations.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.03440.0187 Lead (T)0.02370.0116 Zinc (T)0.03390.0129 TTO0.0930.0304 Oil and grease (for alternate monitoring)1.340.446

(b) Die Casting Operations.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds of metal poured) Copper (T)0.00660.0036 Lead (T)0.00460.0022 Zinc (T)0.00660.0025 Total phenols0.00740.0026 TTO0.01960.0064 Oil and grease for alternate monitoring)0.2590.0864

(c) Melting Furnace Scrubber Operations.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed Copper (T)1.560.852 Lead (T)1.070.527 Zinc (T)1.540.588 Total phenols1.740.608 TTO3.951.29 Oil and grease for alternate monitoring)60.820.3

(d) Mold Cooling Operations.

PSES

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.3040.166 Lead (T)0.2090.103 Zinc (T)0.30.114 TTO0.8210.268 Oil and grease for alternate monitoring)11.83.94

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.

CITE AS: 40 CFR 464.45

§ 464.46 - Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources.

(a) Casting Quench Operations.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.03440.0187 Lead (T)0.02370.0116 Zinc (T)0.03390.0129 TTO0.0930.0304 Oil and grease (for alternate monitoring)1.340.446

(b) Die Casting Operations.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.00660.0036 Lead (T)0.00460.0022 Zinc (T)0.00660.0025 Total phenols0.00740.0026 TTO0.01960.0064 Oil and grease (for alternate monitoring)0.2590.0864

(c) Melting Furnace Scrubber Operations.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed Copper (T)1.560.852 Lead (T)1.070.527 Zinc (T)1.540.588 Total phenols1.740.608 TTO3.951.29 Oil and grease (for alternate monitoring)60.820.3

(d) Mold Cooling Operations.

PSNS

Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average kg/1,000 kkg (pounds per million pounds) of metal poured Copper (T)0.3040.166 Lead (T)0.2090.103 Zinc (T)0.30.114 TTO0.8210.268 Oil and grease (for alternate monitoring)11.83.94
[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.

CITE AS: 40 CFR 464.46

§ 464.47 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]

AUTHORITY: Secs. 301, 304 (b), (c), (e), and (g), 306 (b) and (c), 307, 308, and 501 of the Clean Water Act (Federal Water Pollution Control Act Amendments of 1972, as amended by the Clean Water Act of 1977) (the “Act”); 33 U.S.C. 1311, 1314 (b), (c), (e) and (g), 1316 (b) and (c), 1317 (b) and (c), 1318, and 1361; 86 Stat. 816, Pub. L. 92-500; 91 Stat. 1567, Pub. L. 95-217.

SOURCE: 50 FR 45247, Oct. 30, 1985, unless otherwise noted.

CITE AS: 40 CFR 464.47