Collapse to view only § 464.15 - Pretreatment standards for existing sources.

§ 464.10 - Applicability; description of the aluminum 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 aluminum casting operations as defined in § 464.02(a).

§ 464.11 - Specialized definitions.

For the purpose of this subpart:

(a) Total toxic organics (TTO). TTO is a regulated parameter under PSES (§ 464.15) and PSNS (§ 464.16) for the aluminum 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 (§ 464.15(b) and § 464.16(b)):

4. benzene 21. 2,4,6-trichlorophenol 22. Para-chloro meta-cresol 23. chloroform (trichloromethane) 34. 2,4-dimethylphenol 39. fluoranthene 44. methylene chloride (dichloromethane) 65. phenol 66. bis(2-ethylhexyl) phthalate 67. butyl benzyl phthalate 84. pyrene 85. tetrachloroethylene 87. trichloroethylene

(2) Die Casting (§ 464.15(c) and § 464.16(c)):

1. acenaphthene 4. benzene 7. chlorobenzene 11. 1,1,1-trichloroethane 21. 2,4,6-trichlorophenol 22. para-chloro meta-cresol 23. chloroform (trichloromethane) 34. 2,4-dimethylphenol 39. fluoranthene 44. methylene chloride (dichloromethane) 55. naphthalene 65. phenol 66. bis(2-ethylhexyl) phthalate 67. butyl benzyl phthalate 68. di-n-butyl phthalate 70. diethyl phthalate 72. benzo (a)anthracene (1,2-benzanthracene) 73. benzo (a)pyrene (3,4-benzopyrene) 76. chrysene 78. anthracene 80. fluorene 81. phenanthrene 84. pyrene 85. tetrachloroethylene 86. toluene

(3) Dust Collection Scrubber (§ 464.15(d) and § 464.16(d)):

1. acenaphthene 21. 2,4,6-trichlorophenol 23. chloroform (trichloromethane) 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 73. benzo (a)pyrene (3,4-benzopyrene) 84. pyrene

(4) Investment Casting (§ 464.15(f) and § 464.16(f)):

11. 1,1,1-trichloroethane 23. chloroform (trichloromethane) 44. methylene chloride (dichloromethane) 66. bis (2-ethylhexyl) phthalate 84. pyrene 85. tetrachloroethylene 87. trichloroethylene

(5) Melting Furnace Scrubber (§ 464.15(g) and § 464.16(g)):

1. acenaphthene 21. 2,4,6-trichlorophenol 23. chloroform (trichloromethane) 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 73. benzo (a)pyrene (3,4-benzopyrene) 84. pyrene

(6) Mold Cooling (§ 464.15(h) and § 464.16(h)):

4. benzene 21. 2,4,6-trichlorophenol 22. para-chloro meta-cresol 23. chloroform (trichloromethane) 34. 2,4-dimethylphenol 39. fluoranthene 44. methylene chloride 65. phenol 66. bis(2-ethylhexyl) phthalate 67. butyl benzyl phthalate 84. pyrene 85. tetrachloroethylene 87. trichloroethylene

§ 464.12 - 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/l) limitations shall apply. Concentration limitation and annual average mass limitation shall only apply to non-continuous dischargers.

(a) Casting Cleaning 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)0.07710.0421 Lead (T)0.07910.039 Zinc (T)0.1140.0431 Oil & grease3.01.0 TSS3.801.50 pH( 1)( 1)

1 Within the range of 7.0 to 10.00 at all times.

Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.017 Lead (T)0.790.390.022 Zinc (T)1.140.430.027 Oil & grease30100.501 TSS38151.0 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 (12/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) 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)0.00930.0051 Lead (T)0.00960.0047 Zinc (T)0.01380.0052 Oil & grease0.3630.121 TSS0.460.182 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)0.770.420.0021 Lead (T)0.790.390.0027 Zinc (T)1.140.430.0033 Oil & grease30100.0605 TSS38150.121 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 (1.45/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) 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 & Grease0.2590.0864 TSS0.330.13 pH( 1)( 1)

1 With 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) ( 2) Copper (T)0.770.420.0015 Lead (T)0.790.390.0019 Zinc (T)1.140.430.0023 Total Phenols0.860.30.0017 Oil & Grease30100.0432 TSS38150.0864 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 (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,

(d) Dust Collection Scrubber Operations.

BPT 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)0.2310.126 Lead (T)0.2370.117 Zinc (T)0.3430.129 Total Phenols0.2580.09 Oil & Grease9.013.0 TSS11.44.51 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) 2mg/l) 2Copper (T)0.770.420.0511 Lead (T)0.790.390.0661 Zinc (T)1.140.430.0811 Total Phenols0.860.30.0601 Oil & Grease30101.5 TSS38153.0 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 (0.036/x) where x is the actual normalized process waste-water 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.

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(f) Investment Casting.

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)8.484.63 Lead (T)8.74.3 Zinc (T)12.64.74 Oil and grease330110 TSS419165 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)0.770.421.87 Lead (T)0.790.392.42 Zinc (T)1.140.432.97 Oil and grease301055.1 TSS3815110 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 (1,320/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.

(g) Melting Furnace Scrubber Operations.

BPT 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)3.011.64 Lead (T)3.091.52 Zinc (T)4.451.68 Total phenols3.361.17 Oil and grease11739.1 TSS14858.6 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)0.770.420.664 Lead (T)0.790.390.859 Zinc (T)1.140.431.05 Total phenols0.860.30.781 Oil and grease301019.5 TSS381539.1 pH( 2)( 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 (0.468/x) where x is the acutal 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.

(h) 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)0.2970.162 Lead (T)0.3050.151 Zinc (T)0.440.166 Oil and grease11.63.86 TSS14.75.79 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) 1(mg/) 1Copper (T)0.770.420.0656 Lead (T)0.790.390.0849 Zinc (T)1.140.430.104 Oil and grease30101.93 TSS38153.86 pH( 3)( 3)( 3)

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

2 These concentrations must be multiplied by the ratio of (46.3/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 21760, June 16, 1986]

§ 464.13 - 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/l) limitations shall apply. Concentration limitations and annual average mass limitations shall only apply to non-continuous dischargers.

(a) Casting Cleaning 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)0.07710.0421 Lead (T)0.07910.039 Zinc (T)0.1140.0431
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.017 Lead (T)0.790.390.022 Zinc (T)1.140.430.027

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

2These concentrations must be multiplied by the ratio of (12/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

(b) 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)0.00930.0051 Lead (T)0.00960.0047 Zinc (T)0.01380.0052
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.0021 Lead (T)0.790.390.0027 Zinc (T)1.140.430.0033

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

2These concentrations must be multiplied by the ratio of (1.45/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

(c) 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)0.00680.0034 Zinc (T)0.00980.0037 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)0.790.390.0019 Zinc (T)1.140.430.0023 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.

(d) Dust Collection 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)0.2310.126 Lead (T)0.2370.117 Zinc (T)0.3430.129 Total Phenols0.2580.09
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.0511 Lead (T)0.790.390.0661 Zinc (T)1.140.430.0811 Total Phenols0.860.30.0601

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

2 These concentrations must be multiplied by the ratio of (0.036/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(f) Investment Casting.

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)8.484.63 Lead (T)8.74.3 Zinc (T)12.64.74
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.421.87 Lead (T)0.790.392.42 Zinc (T)1.140.432.97

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

2 These concentrations must be multiplied by the ratio of (1,320/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.

(g) 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)3.011.64 Lead (T)3.091.52 Zinc (T)4.451.68 Total phenols3.361.17
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.664 Lead (T)0.790.390.859 Zinc (T)1.140.431.05 Total phenols0.860.30.781

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

2 These concentrations must be multiplied by the ratio of (0.468/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.

(h) 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)0.2970.162 Lead (T)0.3050.151 Zinc (T)0.440.166
Maximum for any 1 day Maximum for monthly average Annual average 1(mg/l) 2(mg/l) 2Copper (T)0.770.420.0656 Lead (T)0.790.390.0849 Zinc (T)1.140.430.104

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

2 These concentrations must be multiplied by the ratio of (46.3/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 21760, June 16, 1986]

§ 464.14 - 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 Cleaning 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)0.07710.0421 Lead (T)0.07910.039 Zinc (T)0.1140.0431 Oil and grease3.01.0 TSS3.81.5 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)0.770.420.017 Lead (T)0.790.390.022 Zinc (T)1.140.430.027 Oil and grease30100.501 TSS38151.0 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 (12/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) 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)0.00930.0051 Lead (T)0.00960.0047 Zinc (T)0.01380.0052 Oil and grease0.3630.121 TSS0.460.182 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)0.770.420.0021 Lead (T)0.790.390.0027 Zinc (T)1.140.430.0033 Oil and grease30100.0605 TSS38150.121 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 (1.45/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) Die Casting Operations.

NSPS

Pollutant or pollutant property Maximum for one 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 TSS and0.330.13 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 TSS and38150.0864 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 (1.04/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured)

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

(d) Dust Collection Scrubber Operations.

NSPS

Pollutant of 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)0.2310.126 Lead (T)0.2370.117 Zinc (T)0.3430.129 Total phenols0.2580.09 Oil and grease9.013.0 TSS11.44.51 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)0.770.420.0511 Lead (T)0.790.390.0661 Zinc (T)1.140.430.0811 Total phenols0.860.30.0601 Oil and grease30101.5 TSS38153.0 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 (0.036/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.

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(f) Investment Casting.

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)8.484.63 Lead (T)8.74.3 Zinc (T)12.64.74 Oil and grease330110 TSS419165 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)0.770.421.87 Lead (T)0.790.392.42 Zinc (T)1.140.432.97 Oil and grease301055.1 TSS3815110 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 (1,320/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.

(g) 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)3.011.64 Lead (T)3.091.52 Zinc (T)4.451.68 Total phenols3.361.17 Oil and grease11739.1 TSS14858.6 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)0.770.420.664 Lead (T)0.790.390.859 Zinc (T)1.140.431.05 Total phenols0.860.30.781 Oil and grease301019.5 TSS381539.1 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 (0.468/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.

(h) 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)0.2970.162 Lead (T)0.3050.151 Zinc (T)0.440.166 Oil and grease11.63.86 TSS14.75.79 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)0.770.420.0656 Lead (T)0.790.390.0849 Zinc (T)1.140.430.104 Oil and grease30101.93 TSS38153.86 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 (46.3/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 21760, June 16, 1986]

§ 464.15 - 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 Cleaning 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)0.07710.0421 Lead (T)0.07910.039 Zinc (T)0.1140.0431

(b) Casting Quench Operation.

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)0.00930.0051 Lead (T)0.00960.0047 Zinc (T)0.01380.0052 TT00.0290.0095 Oil and grease (for alternate monitoring)0.3630.121

(c) 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)0.00680.0034 Zinc (T)0.00980.0037 Total phenols0.00740.0026 TTO0.03080.01 Oil and grease (for alternate monitoring)0.2590.0864

(d) Dust Collection 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)0.2310.126 Lead (T)0.2370.117 Zinc (T)0.3430.129 Total phenols0.2580.09 TTO0.6130.2 Oil and grease (for alternate monitoring)9.013.00

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

(f) Investment Casting.

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)8.484.63 Lead (T)8.74.3 Zinc (T)12.64.74 TTO18.15.91 Oil and grease (for alternate monitoring330110

(g) 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)3.011.64 Lead (T)3.091.52 Zinc (T)4.451.68 Total phenols3.361.17 TTO7.972.6 Oil and grease (for alternate monitoring)11739.1

(h) 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)0.2970.162 Lead (T)0.3050.151 Zinc (T)0.440.166 TTO0.9350.304 Oil and grease (for alternate monitoring)11.63.86
[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]

§ 464.16 - 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 Cleaning 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)0.07710.0421 Lead (T)0.07910.039 Zinc (T)0.1140.0431

(b) 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)0.00930.0051 Lead (T)0.00960.0047 Zinc (T)0.01380.0052 TTO0.0290.0095 Oil and grease (for alternate monitoring)0.3630.121

(c) 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)0.00680.0034 Zinc (T)0.00980.0037 Total Phenols0.00740.0026 TTO0.03080.01 Oil and grease (for alternate monitoring)0.2590.0864

(d) Dust Collection 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)0.2310.126 Lead (T)0.2370.117 Zinc (T)0.3430.129 Total Phenols0.2580.09 TTO0.6130.2 Oil and grease (for alternate monitoring)9.013.0

(e) Grinding Scrubber Operations. No discharge of process wastewater pollutants to a POTW.

(f) Investment Casting.

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)8.484.63 Lead (T)8.74.3 Zinc (T)12.64.74 TTO18.15.91 Oil and grease (for alternate monitoring)330110

(g) 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)3.011.64 Lead (T)3.091.52 Zinc (T)4.451.68 Total Phenols3.361.17 TTO7.972.6 Oil and grease (for alternate monitoring)11739.1

(h) 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)0.2970.162 Lead (T)0.3050.151 Zinc (T)0.440.166 TTO0.9350.304 Oil and grease (for alternate monitoring)11.63.86

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