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Title 40Chapter ISubchapter NPart 464 → Subpart A


Title 40: Protection of Environment
PART 464—METAL MOLDING AND CASTING POINT SOURCE CATEGORY


Subpart A—Aluminum Casting Subcategory


Contents
§464.10   Applicability; description of the aluminum casting subcategory.
§464.11   Specialized definitions.
§464.12   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
§464.13   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
§464.14   New source performance standards.
§464.15   Pretreatment standards for existing sources.
§464.16   Pretreatment standards for new sources.
§464.17   Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]

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§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).

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§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

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§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 Sm3 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 propertyMaximum for any 1 dayMaximum 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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

1kg/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.

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

(b) Casting Quench Operations.

BPT Effluent Limitations

Pollutant or pollutant propertyMaximum for any 1 dayMaximum 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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

1kg/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.

3Within 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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (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)

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,

(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 Sm3 (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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2mg/l)2
Copper (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)

1kg/62.3 million SM3 (pounds per billion SCF) of air scrubbed.

2These 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.

3Within 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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

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

2These 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.

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

(g) Melting Furnace Scrubber Operations.

BPT Effluent Limitations

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

1kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.

2These 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.

3Within 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)

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

   Maximum for any 1 day Maximum for monthly average Annual average1
   (mg/l)1(mg/)1
Copper (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)

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

2These 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.

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

[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]

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§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 Sm3 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 propertyMaximum 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 average1
   (mg/l)2(mg/l)2
Copper (T)0.770.420.017
Lead (T)0.790.390.022
Zinc (T)1.140.430.027

1kg/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 average1
   (mg/l)2(mg/l)2
Copper (T)0.770.420.0021
Lead (T)0.790.390.0027
Zinc (T)1.140.430.0033

1kg/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 average1
   (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

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.

(d) Dust Collection Scrubber Operations.

BAT Effluent Limitations

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (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 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (T)0.770.420.0511
Lead (T)0.790.390.0661
Zinc (T)1.140.430.0811
Total Phenols0.860.30.0601

1kg/62.3 million Sm3 (lb per billion SCF) of air scrubbed.

2These 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 propertyMaximum for any 1 dayMaximum 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 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (T)0.770.421.87
Lead (T)0.790.392.42
Zinc (T)1.140.432.97

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

2These 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 propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (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 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (T)0.770.420.664
Lead (T)0.790.390.859
Zinc (T)1.140.431.05
Total phenols0.860.30.781

1kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed

2These 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 propertyMaximum for any 1 dayMaximum 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 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (T)0.770.420.0656
Lead (T)0.790.390.0849
Zinc (T)1.140.430.104

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

2These 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]

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§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 Sm3 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 propertyMaximum for any 1 dayMaximum 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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

1kg/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.

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

(b) Casting Quench Operations.

NSPS

Pollutant or pollutant propertyMaximum for any 1 dayMaximum 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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

1kg/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.

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

(c) Die Casting Operations.

NSPS

Pollutant or pollutant propertyMaximum for one 1 dayMaximum 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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (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 and grease30100.0432
TSS and38150.0864
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)

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

(d) Dust Collection Scrubber Operations.

NSPS

Pollutant of pollutant propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed
Cooper (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)

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

   Maximum for any 1 daymaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Cooper (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)

1kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.

2These 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.

3Within 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 propertyMaximum for any 1 dayMaximum 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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

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

2These 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.

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

(g) Melting Furnace Scrubber Operations.

NSPS

Pollutant or pollutant propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (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)

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

   Maximum for any 1 dayMaximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

1kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.

2These 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.

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

(h) Mold Cooling Operations.

NSPS

Pollutant or pollutant property Maximum for any 1 dayMaximum 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)

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

   Maximum for any 1 day Maximum for monthly averageAnnual average1
   (mg/l)2(mg/l)2
Copper (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)

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

2These 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.

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

[50 FR 45247, Oct. 30, 1985; 51 FR 21760, June 16, 1986]

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§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 propertyMaximum for any 1 dayMaximum 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 propertyMaximum for any 1 dayMaximum 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 propertyMaximum for any 1 dayMaximum 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 propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (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 propertyMaximum for any 1 dayMaximum 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 propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (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 propertyMaximum for any 1 dayMaximum 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]

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§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 propertyMaximum for any 1 dayMaximum 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 propertyMaximum for any 1 dayMaximum 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 propertyMaximum for any 1 dayMaximum 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 propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (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 propertyMaximum for any 1 dayMaximum 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 propertyMaximum for any 1 dayMaximum for monthly average
   kg/62.3 million Sm3 (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 propertyMaximum for any 1 dayMaximum 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

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

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