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

General Provisions
§ 464.01
Applicability.
(a) This part applies to metal molding and casting facilities that discharge or may discharge pollutants to waters of the United States or that introduce pollutants into a publicly owned treatment works.

§ 464.02
General definitions.
In addition to the definitions set forth in 40 CFR part 401, the following definitions apply to this part:

(a) Aluminum casting. The remelting of aluminum or an aluminum alloy to form a cast intermediate or final product by pouring or forcing the molten metal into a mold, except for ingots, pigs, or other cast shapes related to nonferrous (primary and secondary) metals manufacturing (40 CFR part 421) and aluminum forming (40 CFR part 467). Processing operations following the cooling of castings not covered under aluminum forming, except for grinding scrubber operations which are covered here, are covered under the electroplating and metal finishing point source categories (40 CFR parts 413 and 433).

(b) Copper casting. The remelting of copper or a copper alloy to form a cast intermediate or final product by pouring or forcing the molten metal into a mold, except for ingots, pigs, or other cast shapes related to nonferrous (primary and secondary) metals manufacturing (40 CFR part 421). Also excluded are casting of beryllium alloys in which beryllium is present at 0.1 or greater percent by weight and precious metals alloys in which the precious metal is present at 30 or greater percent by weight. Except for grinding scrubber operations which are covered here, processing operations following the cooling of castings are covered under the electroplating and metal finishing point source categories (40 CFR parts 413 and 433).

(c) Ferrous casting. The remelting of ferrous metals to form a cast intermediate or finished product by pouring the molten metal into a mold. Except for grinding scrubber operations which are covered here, processing operations following the cooling of castings are covered under the electroplating and metal finishing point source categories (40 CFR parts 413 and 433).

(d) Zinc casting. The remelting of zinc or zinc alloy to form a cast intermediate or final product by pouring or forcing the molten metal into a mold, except for ingots, pigs, or other cast shapes related to nonferrous (primary) metals manufacturing (40 CFR part 421) and nonferrous metals forming (40 CFR part 471). Processing operations following the cooling of castings not covered under nonferrous metals forming are covered under the electroplating and metal finishing point source categories (40 CFR parts 413 and 433).

(e) POTW shall mean “publicly owned treatment works.”

(f) A non-continuous discharger is a plant which does not discharge pollutants during specific periods of time for reasons other than treatment plant upset, such periods being at least 24 hours in duration. A typical example of a non-continuous discharger is a plant where wastewaters are routinely stored for periods in excess of 24 hours to be treated on a batch basis. For non-continuous discharging direct discharging plants, NPDES permit authorities shall apply the mass-based annual average effluent limitations or standards and the concentration-based maximum day and maximum for monthly average effluent limitations or standards established in the regulations. POTWs may elect to establish concentration-based standards for non-continuous discharges to POTWs. They may do so by establishing concentration-based pretreatment standards equivalent to the mass-based standards provided in §§ 464.15, 464.16, 464.25, 464.26, 464.35, 464.36, 464.45, and 464.46 of the regulations. Equivalent concentration standards may be established by following the procedures outlined in § 464.03(b).

(g) Total phenols shall mean total phenolic compounds as measured by the procedure listed in 40 CFR part 136 (distillation followed by colorimetric—4AAP).

(h) Sm 3
shall mean standard cubic meters.

(i) SCF shall means standard cubic feet.

(j) Total toxic organics (TTO) shall mean the sum of the mass of each of the toxic organic compounds which are found at a concentration greater than 0.010 mg/l. The specialized definitions for each subpart contain a discrete list of toxic organic compounds comprising TTO for each process segment in which TTO is regulated.

§ 464.03
Monitoring and reporting requirements.
(a) As an alternative to monitoring for TTO (total toxic organics), an indirect discharging plant may elect to monitor for Oil and Grease instead. Compliance with the Oil and Grease standard shall be considered equivalent to complying with the TTO standard. Alternate Oil and Grease standards are provided as substitutes for the TTO standards provided in §§ 464.15, 464.16, 464.25, 464.26, 464.35, 464.36, 464.45, and 464.46.

(b) POTWs may establish concentration standards rather than mass standards, but must ensure that the concentration standards are exactly equivalent to the mass-based standards provided in §§ 464.15, 464.16, 464.25, 464.26, 464.35, 464.36, 464.45, and 464.46. Equivalent concentration standards may be determined by multiplying the mass-based standards included in the regulations by an appropriate measurement of average production, raw material usage, or air scrubber flow (kkg of metal poured, kkg of sand reclaimed, or standard cubic meters of air scrubbed) and dividing by an appropriate measure of average discharge flow to the POTW, taking into account the proper conversion factors to ensure that the units (mg/l) are correct.

(c) The “monthly average” regulatory values shall be the basis for the monthly average effluent limitations guidelines and standards in direct discharge permits and for pretreatment standards. Compliance with the monthly average effluent limitations guidelines and standards is required regardless of the number of samples analyzed and averaged.

§ 464.04
Compliance date for PSES.
The compliance date of PSES is October 31, 1988.

Subpart A—Aluminum Casting Subcategory
§ 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 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 property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of metal poured

Copper (T)
0.0771
0.0421

Lead (T)
0.0791
0.039

Zinc (T)
0.114
0.0431

Oil & grease
3.0
1.0

TSS
3.80
1.50

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)2

Copper (T)
0.77
0.42
0.017

Lead (T)
0.79
0.39
0.022

Zinc (T)
1.14
0.43
0.027

Oil & grease
30
10
0.501

TSS
38
15
1.0

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)
0.0093
0.0051

Lead (T)
0.0096
0.0047

Zinc (T)
0.0138
0.0052

Oil & grease
0.363
0.121

TSS
0.46
0.182

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)2

Copper (T)
0.77
0.42
0.0021

Lead (T)
0.79
0.39
0.0027

Zinc (T)
1.14
0.43
0.0033

Oil & grease
30
10
0.0605

TSS
38
15
0.121

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)
0.0066
0.0036

Lead (T)
0.0068
0.0034

Zinc (T)
0.0098
0.0037

Total Phenols
0.0074
0.0026

Oil & Grease
0.259
0.0864

TSS
0.33
0.13

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)
0.77
0.42
0.0015

Lead (T)
0.79
0.39
0.0019

Zinc (T)
1.14
0.43
0.0023

Total Phenols
0.86
0.3
0.0017

Oil & Grease
30
10
0.0432

TSS
38
15
0.0864

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 Sm3 (pounds per billion SCF) of air scrubbed

Copper (T)
0.231
0.126

Lead (T)
0.237
0.117

Zinc (T)
0.343
0.129

Total Phenols
0.258
0.09

Oil & Grease
9.01
3.0

TSS
11.4
4.51

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)2

Copper (T)
0.77
0.42
0.0511

Lead (T)
0.79
0.39
0.0661

Zinc (T)
1.14
0.43
0.0811

Total Phenols
0.86
0.3
0.0601

Oil & Grease
30
10
1.5

TSS
38
15
3.0

pH
(3)
(3)
(3)

1 kg/62.3 million SM3 (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)
8.48
4.63

Lead (T)
8.7
4.3

Zinc (T)
12.6
4.74

Oil and grease
330
110

TSS
419
165

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)2

Copper (T)
0.77
0.42
1.87

Lead (T)
0.79
0.39
2.42

Zinc (T)
1.14
0.43
2.97

Oil and grease
30
10
55.1

TSS
38
15
110

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 Sm3 (pounds per billion SCF) of air scrubbed

Copper (T)
3.01
1.64

Lead (T)
3.09
1.52

Zinc (T)
4.45
1.68

Total phenols
3.36
1.17

Oil and grease
117
39.1

TSS
148
58.6

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) 2

Copper (T)
0.77
0.42
0.664

Lead (T)
0.79
0.39
0.859

Zinc (T)
1.14
0.43
1.05

Total phenols
0.86
0.3
0.781

Oil and grease
30
10
19.5

TSS
38
15
39.1

pH
(2)
(3)
(3)

1 kg/62.3 million Sm3 (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)
0.297
0.162

Lead (T)
0.305
0.151

Zinc (T)
0.44
0.166

Oil and grease
11.6
3.86

TSS
14.7
5.79

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/) 1

Copper (T)
0.77
0.42
0.0656

Lead (T)
0.79
0.39
0.0849

Zinc (T)
1.14
0.43
0.104

Oil and grease
30
10
1.93

TSS
38
15
3.86

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 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 property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of metal poured

Copper (T)
0.0771
0.0421

Lead (T)
0.0791
0.039

Zinc (T)
0.114
0.0431

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.017

Lead (T)
0.79
0.39
0.022

Zinc (T)
1.14
0.43
0.027

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)
0.0093
0.0051

Lead (T)
0.0096
0.0047

Zinc (T)
0.0138
0.0052

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.0021

Lead (T)
0.79
0.39
0.0027

Zinc (T)
1.14
0.43
0.0033

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)
0.0066
0.0036

Lead (T)
0.0068
0.0034

Zinc (T)
0.0098
0.0037

Total Phenols
0.0074
0.0026

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.0015

Lead (T)
0.79
0.39
0.0019

Zinc (T)
1.14
0.43
0.0023

Total Phenols
0.86
0.3
0.0017

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 Sm3 (pounds per billion SCF) of air scrubbed

Copper (T)
0.231
0.126

Lead (T)
0.237
0.117

Zinc (T)
0.343
0.129

Total Phenols
0.258
0.09

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.0511

Lead (T)
0.79
0.39
0.0661

Zinc (T)
1.14
0.43
0.0811

Total Phenols
0.86
0.3
0.0601

1 kg/62.3 million Sm3 (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)
8.48
4.63

Lead (T)
8.7
4.3

Zinc (T)
12.6
4.74

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
1.87

Lead (T)
0.79
0.39
2.42

Zinc (T)
1.14
0.43
2.97

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 Sm3 (pounds per billion SCF) of air scrubbed

Copper (T)
3.01
1.64

Lead (T)
3.09
1.52

Zinc (T)
4.45
1.68

Total phenols
3.36
1.17

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.664

Lead (T)
0.79
0.39
0.859

Zinc (T)
1.14
0.43
1.05

Total phenols
0.86
0.3
0.781

1 kg/62.3 million Sm3 (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)
0.297
0.162

Lead (T)
0.305
0.151

Zinc (T)
0.44
0.166

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.0656

Lead (T)
0.79
0.39
0.0849

Zinc (T)
1.14
0.43
0.104

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 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 property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of metal poured

Copper (T)
0.0771
0.0421

Lead (T)
0.0791
0.039

Zinc (T)
0.114
0.0431

Oil and grease
3.0
1.0

TSS
3.8
1.5

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) 2

Copper (T)
0.77
0.42
0.017

Lead (T)
0.79
0.39
0.022

Zinc (T)
1.14
0.43
0.027

Oil and grease
30
10
0.501

TSS
38
15
1.0

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)
0.0093
0.0051

Lead (T)
0.0096
0.0047

Zinc (T)
0.0138
0.0052

Oil and grease
0.363
0.121

TSS
0.46
0.182

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) 2

Copper (T)
0.77
0.42
0.0021

Lead (T)
0.79
0.39
0.0027

Zinc (T)
1.14
0.43
0.0033

Oil and grease
30
10
0.0605

TSS
38
15
0.121

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)
0.0066
0.0036

Lead (T)
0.0068
0.0034

Zinc (T)
0.0098
0.0037

Total Phenols
0.0074
0.0026

Oil and grease
0.259
0.0864

TSS and
0.33
0.13

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) 2

Copper (T)
0.77
0.42
0.0015

Lead (T)
0.79
0.39
0.0019

Zinc (T)
1.14
0.43
0.0023

Total phenols
0.86
0.3
0.0017

Oil and grease
30
10
0.0432

TSS and
38
15
0.0864

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

Cooper (T)
0.231
0.126

Lead (T)
0.237
0.117

Zinc (T)
0.343
0.129

Total phenols
0.258
0.09

Oil and grease
9.01
3.0

TSS
11.4
4.51

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) 2

Cooper (T)
0.77
0.42
0.0511

Lead (T)
0.79
0.39
0.0661

Zinc (T)
1.14
0.43
0.0811

Total phenols
0.86
0.3
0.0601

Oil and grease
30
10
1.5

TSS
38
15
3.0

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)
8.48
4.63

Lead (T)
8.7
4.3

Zinc (T)
12.6
4.74

Oil and grease
330
110

TSS
419
165

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) 2

Copper (T)
0.77
0.42
1.87

Lead (T)
0.79
0.39
2.42

Zinc (T)
1.14
0.43
2.97

Oil and grease
30
10
55.1

TSS
38
15
110

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)
3.01
1.64

Lead (T)
3.09
1.52

Zinc (T)
4.45
1.68

Total phenols
3.36
1.17

Oil and grease
117
39.1

TSS
148
58.6

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) 2

Copper (T)
0.77
0.42
0.664

Lead (T)
0.79
0.39
0.859

Zinc (T)
1.14
0.43
1.05

Total phenols
0.86
0.3
0.781

Oil and grease
30
10
19.5

TSS
38
15
39.1

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)
0.297
0.162

Lead (T)
0.305
0.151

Zinc (T)
0.44
0.166

Oil and grease
11.6
3.86

TSS
14.7
5.79

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)2

Copper (T)
0.77
0.42
0.0656

Lead (T)
0.79
0.39
0.0849

Zinc (T)
1.14
0.43
0.104

Oil and grease
30
10
1.93

TSS
38
15
3.86

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)
0.0771
0.0421

Lead (T)
0.0791
0.039

Zinc (T)
0.114
0.0431

(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)
0.0093
0.0051

Lead (T)
0.0096
0.0047

Zinc (T)
0.0138
0.0052

TT0
0.029
0.0095

Oil and grease (for alternate monitoring)
0.363
0.121

(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)
0.0066
0.0036

Lead (T)
0.0068
0.0034

Zinc (T)
0.0098
0.0037

Total phenols
0.0074
0.0026

TTO
0.0308
0.01

Oil and grease (for alternate monitoring)
0.259
0.0864

(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)
0.231
0.126

Lead (T)
0.237
0.117

Zinc (T)
0.343
0.129

Total phenols
0.258
0.09

TTO
0.613
0.2

Oil and grease (for alternate monitoring)
9.01
3.00

(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)
8.48
4.63

Lead (T)
8.7
4.3

Zinc (T)
12.6
4.74

TTO
18.1
5.91

Oil and grease (for alternate monitoring
330
110

(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)
3.01
1.64

Lead (T)
3.09
1.52

Zinc (T)
4.45
1.68

Total phenols
3.36
1.17

TTO
7.97
2.6

Oil and grease (for alternate monitoring)
117
39.1

(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)
0.297
0.162

Lead (T)
0.305
0.151

Zinc (T)
0.44
0.166

TTO
0.935
0.304

Oil and grease (for alternate monitoring)
11.6
3.86

[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)
0.0771
0.0421

Lead (T)
0.0791
0.039

Zinc (T)
0.114
0.0431

(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)
0.0093
0.0051

Lead (T)
0.0096
0.0047

Zinc (T)
0.0138
0.0052

TTO
0.029
0.0095

Oil and grease (for alternate monitoring)
0.363
0.121

(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)
0.0066
0.0036

Lead (T)
0.0068
0.0034

Zinc (T)
0.0098
0.0037

Total Phenols
0.0074
0.0026

TTO
0.0308
0.01

Oil and grease (for alternate monitoring)
0.259
0.0864

(d) Dust Collection Scrubber Operations.

PSNS
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)
0.231
0.126

Lead (T)
0.237
0.117

Zinc (T)
0.343
0.129

Total Phenols
0.258
0.09

TTO
0.613
0.2

Oil and grease (for alternate monitoring)
9.01
3.0

(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)
8.48
4.63

Lead (T)
8.7
4.3

Zinc (T)
12.6
4.74

TTO
18.1
5.91

Oil and grease (for alternate monitoring)
330
110

(g) Melting Furnace Scrubber Operations.

PSNS
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)
3.01
1.64

Lead (T)
3.09
1.52

Zinc (T)
4.45
1.68

Total Phenols
3.36
1.17

TTO
7.97
2.6

Oil and grease (for alternate monitoring)
117
39.1

(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)
0.297
0.162

Lead (T)
0.305
0.151

Zinc (T)
0.44
0.166

TTO
0.935
0.304

Oil and grease (for alternate monitoring)
11.6
3.86

§ 464.17
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
Subpart B—Copper Casting Subcategory
§ 464.20
Applicability; description of the copper 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 copper casting operations as defined in § 464.02(b).

§ 464.21
Specialized definitions.
For the purpose of this subpart:

(a) Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§ 464.25) and PSNS (§ 464.26) for the copper 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 (§ 464.25(a) and § 464.26(a)):

23. chloroform (trichloromethane)
64. pentachlorophenol
66. bis(2-ethylhexyl)phthalate
71. dimethyl phthalate
(2) Dust Collection Scrubbers (§ 464.25(c) and 464.26(c)):

1. acenaphthene
22. para-chloro meta-cresol
23. chloroform (trichloromethane)
34. 2,4-dimethylphenol
55. naphthalene
58. 4-nitrophenol
64. pentachlorophenol
65. phenol
66. bis(2-ethylhexyl)phthalate
67. butyl benzyl phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
71. dimethyl phthalate
72. benzo(a)anthracene (1,2-benzanthracene)
74. 3,4-benzofluoranthene
75. benzo(k) fluoranthene
76. chrysene
77. acenaphthylene
78. anthracene
81. phenanthrene
84. pyrene
(3) Investment Casting (§ 464.25(e) and § 464.26(e)):

1. acenaphthene
22. para-chloro meta-cresol
23. chloroform (trichloromethane)
34. 2,4-dimethylphenol
55. naphthalene
58. 4-nitrophenol
64. pentachlorophenol
65. phenol
66. bis (2-ethylhexyl)phthalate
67. butyl benzyl phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
71. dimethyl phthalate
72. benzo(a)anthracene (1,2-benzanthracene)
74. 3,4-benzofluoranthene
75. benzo(k) fluoranthene
76. chrysene
77. acenaphthylene
78. anthracene
81. Phenanthrene
84. pyrene
(4) Melting Furnace Scrubber (§ 464.25(f) and § 464.26(f)):

1. acenaphthene
22. para-chloro meta-cresol
23. chloroform (trichloromethane)
34. 2,4-dimethylphenol
55. naphthalene
58. 4-nitrophenol
64. pentachlorophenol
65. phenol
66. bis (2-ethylhexyl) phthalate
67. butyl benzyl phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
71. dimethyl phthalate
72. benzo(a)anthracene (1,2-benzanthracene)
74. 3,4-benzoflouranthene
75. benzo(k) flouranthene
76. chrysene
77. acenaphthylene
78. anthracene
81. phenanthrene
84. pyrene
(5) Mold Cooling (§ 464.25(g) and § 464.26(g)):

23. chloroform (trichloromethane)
64. pentachlorophenol
66. bis(2-ethylhexyl)phthalate
71. dimethyl phthalate
§ 464.22
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 limitations and annual average mass limitations shall only apply to non-continuous 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)
0.0307
0.0168

Lead (T)
0.0315
0.0156

Zinc (T)
0.0455
0.0171

Oil and grease
1.2
0.399

TSS
1.52
0.598

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) 2

Copper (T)
0.77
0.42
0.0068

Lead (T)
0.79
0.39
0.0088

Zinc (T)
1.14
0.43
0.0108

Oil and grease
30
10
0.199

TSS
38
15
0.399

pH
(3)
(3)
(3)

1 kg/1000 kkg (pounds per million pounds) of metal poured
2 These concentrations must be multiplied by the ratio of (4.8/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) Direct Chill 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)
0.928
0.506

Lead (T)
0.952
0.47

Zinc (T)
1.37
0.518

Oil and grease
36.2
12.1

TSS
45.8
18.1

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) 2

Copper (T)
0.77
0.42
0.205

Lead (T)
0.79
0.39
0.265

Zinc (T)
1.14
0.43
0.326

Oil and grease
30
10
6.03

TSS
38
15
12.1

pH
(3)
(3)
(3)

1 kg/1000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (145/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) 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)
0.553
0.301

Lead (T)
0.567
0.28

Zinc (T)
0.818
0.309

Total phenols
0.617
0.215

Oil and grease
21.5
7.18

TSS
27.3
10.8

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) 2

Copper (T)
0.77
0.42
0.122

Lead (T)
0.79
0.39
0.158

Zinc (T)
1.14
0.43
0.194

Total phenols
0.86
0.3
0.144

Oil and grease
30
10
3.59

TSS
38
15
7.18

pH
(3)
(3)
(3)

1 kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.086/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) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) 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)
8.48
4.63

Lead (T)
8.7
4.3

Zinc (T)
12.6
4.74

Oil and grease
330
110

TSS
419
165

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) 2

Copper (T)
0.77
0.42
1.87

Lead (T)
0.79
0.39
2.42

Zinc (T)
1.14
0.43
2.97

Oil and grease
30
10
55.1

TSS
38
15
110

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.
(f) Melting Furnace 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)
1.81
0.988

Lead (T)
1.86
0.918

Zinc (T)
2.68
1.01

Total phenols
2.02
0.706

Oil and grease
70.6
23.5

TSS
89.4
35.3

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) 2

Copper (T)
0.77
0.42
0.4

Lead (T)
0.79
0.39
0.518

Zinc (T)
1.14
0.43
0.635

Total phenols
0.86
0.3
0.467

Oil and grease
30
10
11.8

TSS
38
15
23.5

pH
(3)
(3)
(3)

1 kg/62.3 million Sm3 (pound per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.282/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.
(g) 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)
0.392
0.214

Lead (T)
0.402
0.199

Zinc (T)
0.58
0.219

Oil and grease
15.3
5.09

TSS
19.3
7.63

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) 2

Copper (T)
0.77
0.42
0.0865

Lead (T)
0.79
0.39
0.112

Zinc (T)
1.14
0.43
0.137

Oil and grease
30
10
2.54

TSS
38
15
5.09

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 (61/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]
§ 464.23
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 discharges, 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 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)
0.0307
.0168

Lead (T)
0.0211
.0104

Zinc (T)
0.0303
.0116

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.0068

Lead (T)
0.53
0.26
0.006

Zinc (T)
0.76
0.29
0.0072

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (4.8/x) where x is the actual normalized process waste-water flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(b) Direct Chill 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)
0.928
0.506

Lead (T)
0.639
0.314

Zinc (T)
0.916
0.35

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.205

Lead (T)
0.53
0.26
0.181

Zinc (T)
0.76
0.29
0.217

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (145/x) where x is the actual normalized process waste-water flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(c) Dust Collection Scrubber Operations.

BAT 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)
0.553
0.301

Lead (T)
0.38
0.187

Zinc (T)
0.545
0.208

Total phenols
0.617
0.215

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.122

Lead (T)
0.53
0.26
0.108

Zinc (T)
0.76
0.29
0.129

Total phenols
0.86
0.3
0.144

1 kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.086/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting.

BAT Effluent Limitations
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/1000 kkg (pounds per million pounds) of metal poured

Copper (T)
8.48
4.63

Lead (T)
5.84
2.86

Zinc (T)
8.37
3.19

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
1.87

Lead (T)
0.53
0.26
1.65

Zinc (T)
0.76
0.29
1.98

1 kg/1000 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.
(f) 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)
1.81
0.988

Lead (T)
1.25
0.612

Zinc (T)
1.79
0.673

Total phenols
2.02
0.706

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.4

Lead (T)
0.53
0.26
0.353

Zinc (T)
0.76
0.29
0.424

Total phenols
0.86
0.3
0.471

1 kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.282/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(g) 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)
0.392
0.214

Lead (T)
0.27
0.132

Zinc (T)
0.387
0.148

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.0865

Lead (T)
0.53
0.26
0.0763

Zinc (T)
0.76
0.29
0.0916

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (61/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 21761, June 16, 1986]
§ 464.24
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 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)
0.0307
0.0168

Lead (T)
0.0211
0.0104

Zinc (T)
0.0303
0.0116

Oil and grease
1.2
0.399

TSS
0.598
0.479

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) 2

Copper (T)
0.77
0.42
0.0068

Lead (T)
0.53
0.26
0.006

Zinc (T)
0.76
0.29
0.0072

Oil and grease
30
10
0.199

TSS
15
12
0.104

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 (4.8/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) Direct Chill 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)
0.928
0.506

Lead (T)
0.639
0.314

Zinc (T)
0.916
0.35

Oil and grease
36.2
12.1

TSS
18.1
14.5

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) 2

Copper (T)
0.77
0.42
0.205

Lead (T)
0.53
0.26
0.181

Zinc (T)
0.76
0.29
0.217

Oil and grease
30
10
6.03

TSS
15
12
3.13

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 (145/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) Dust Collection 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)
0.553
0.301

Lead (T)
0.38
0.187

Zinc (T)
0.545
0.208

Total phenols
0.617
0.215

Oil and grease
21.5
7.18

TSS
10.8
8.61

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) 2

Copper (T)
0.77
0.42
0.122

Lead (T)
0.53
0.26
0.108

Zinc (T)
0.76
0.29
0.129

Total phenols
0.86
0.3
0.144

Oil and grease
30
10
3.59

TSS
15
12
1.87

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

(e) Investment Casting.

NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per millions pounds) of metal poured

Copper (T)
8.48
4.63

Lead (T)
5.84
2.86

Zinc (T)
8.37
3.19

Oil and grease
330
110

TSS
165
132

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) 2

Copper (T)
0.77
0.42
1.87

Lead (T)
0.53
0.26
1.65

Zinc (T)
0.76
0.29
1.98

Oil and grease
30
10
55.1

TSS
15
12
28.6

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.
(f) 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)
1.81
0.988

Lead (T)
1.25
0.612

Zinc (T)
1.79
0.673

Total phenols
2.02
0.706

Oil and grease
70.6
23.5

TSS
35.3
28.2

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) 2

Copper (T)
0.77
0.42
0.4

Lead (T)
0.53
0.26
0.353

Zinc (T)
0.76
0.29
0.424

Total phenols
0.86
0.3
0.471

Oil and grease
30
10
11.8

TSS
15
12
6.12

pH
(3)
(3)
(3)

1 kg/62.3 Sm 3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.282/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.
(g) 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)
0.392
0.214

Lead (T)
0.27
0.132

Zinc (T)
0.387
0.148

Oil and grease
15.3
5.09

TSS
7.63
6.11

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) 2

Copper (T)
0.77
0.42
0.0865

Lead (T)
0.53
0.26
0.0763

Zinc (T)
0.76
0.29
0.0916

Oil and grease
30
10
2.54

TSS
15
12
1.32

pH
(3)
(3)
(3)

1 kg/1,000 kkg (pounds per million pound) of metal poured.
2 These concentrations must be multiplied by the ratio of (61/x) where x is the actual normalized process waste-water 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 21761, June 16, 1986]
§ 464.25
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/1000 kkg (pounds per million pounds) of metal poured

Copper (T)
0.0307
0.0168

Lead (T)
0.0211
0.0104

Zinc (T)
0.0303
0.0116

TTO
0.0335
0.0109

Oil and grease (for alternate monitoring)
1.2
0.399

(b) Direct Chill 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)
0.928
0.506

Lead (T)
0.639
0.314

Zinc (T)
0.916
0.35

(c) 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)
0.552
0.301

Lead (T)
0.38
0.187

Zinc (T)
0.545
0.208

Total phenols
0.617
0.215

TTO
1.65
0.54

Oil and grease (for alternate monitoring)
21.5
7.18

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

(e) 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)
8.48
4.63

Lead (T)
5.84
2.86

Zinc (T)
8.37
3.19

TTO
25.4
8.29

Oil and grease for alternate monitoring)
330
110

(f) Melting Furnace Scrubber Operations.

PSES
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)
1.81
0.988

Lead (T)
1.25
0.612

Zinc (T)
1.79
0.673

Total phenols
2.02
0.706

TTO
5.41
1.77

Oil and grease (for alternate monitoring)
70.6
23.5

(g) 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)
0.392
0.214

Lead (T)
0.27
0.132

Zinc (T)
0.387
0.148

TTO
0.428
0.14

Oil and grease (for alternate monitoring)
15.3
5.09

§ 464.26
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)
0.0307
0.0168

Lead (T)
0.0211
0.0104

Zinc (T)
0.0303
0.0116

TTO
0.0335
0.0109

Oil and grease (for alternate monitoring)
1.2
0.399

(b) Direct Chill 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)
0.928
0.506

Lead (T)
0.639
0.314

Zinc (T)
0.916
0.35

(c) Dust Collection Scrubber Operations.

PSNS
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)
0.552
0.301

Lead (T)
0.38
0.187

Zinc (T)
0.545
0.208

Total Phenols
0.617
0.215

TTO
1.65
0.54

Oil and Grease (for alternate monitoring
21.5
7.18

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

(e) 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)
8.48
4.63

Lead (T)
5.84
2.86

Zinc (T)
8.37
3.19

TTO
25.4
8.29

Oil and Grease (for alternate monitoring
330
110

(f) Melting Furnace Scrubber Operations.

PSNS
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)
1.81
0.988

Lead (T)
1.25
0.612

Zinc (T)
1.79
0.673

Total Phenols
2.02
0.706

TTO
5.41
1.77

Oil and Grease (for alternate monitoring
70.6
23.5

(g) 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)
0.392
0.214

Lead (T)
0.27
0.132

Zinc (T)
0.387
0.148

TTO
0.428
0.14

Oil and Grease (for alternate monitoring
15.3
5.09

§ 464.27
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
Subpart C—Ferrous Casting Subcategory
§ 464.30
Applicability; description of the ferrous 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 ferrous casting operations as defined in § 464.02(c).

§ 464.31
Specialized definitions.
For the purpose of this subpart:

(a) Total Toxic Organics (TTO). TTO is a regulated parameter under PSES (§ 464.35) and PSNS (§ 464.36) for the ferrous 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 (§ 464.35(b) and § 464.36(b)):

23. chloroform (trichloromethane)
34. 2,4-dimethylphenol
(2) Dust Collection Scrubber (§ 464.35(c) and § 464.36(b)):

1. acenaphthene
23. chloroform (trichloromethane)
31. 2,4-dichlorophenol
34. 2,4-dimethylphenol
39. fluoranthene
44. methylene chloride (dichloromethane)
55. naphthalene
64. pentachlorophenol
65. phenol
66. bis(2-ethylhexyl)phthalate
67. butyl benzyl phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
71. dimethyl phthalate
72. benzo (a)anthracene (1,2-benzanthracene)
76. chrysene
77. acenaphthylene
78. anthracene
80. fluorene
81. phenanthrene
84. pyrene
(3) Investment Casting (§ 464.35(e) and § 464.36(e)):

23. chloroform (trichloromethane)
44. methylene chloride (dichloromethane)
66. bis (2-ethylhexyl) phthalate
77. acenaphthylene
84. pyrene
(4) Melting Furnace Scrubber (§ 464.35(f) and § 464.36(f)):

23. chloroform (trichloromethane)
31. 2,4-dichlorophenol
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
72. benzo (a)anthracene (1,2-benzanthracene)
76. chrysene
77. acenaphthylene
78. anthracene
80. fluorene
81. phenanthrene
84. pyrene
(5) Mold Cooling (§ 464.35(g) and § 464.36(g)):

23. chloroform (trichloromethane)
34. 2,4-dimethylphenol
(6) Slag Quench (§ 464.35(h) and § 464.36(h)):

34. 2,4-dimethylphenol
71. dimethyl phthalate
(7) Wet Sand Reclamation (§ 464.35(i) and § 464.36(i)):

1. acenaphthene
34. 2,4-dimethylphenol
39. fluoranthene
44. methylene chloride (dichloromethane)
55. naphthalene
65. phenol
66. bis (2-ethylhexyl) phthalate
68. di-n-butyl phthalate
70. diethyl phthalate
71. dimethyl phthalate
72. benzo(a)anthracene (1,2-benzanthracene)
77. acenaphthylene
84. pyrene
(b) Cast Iron. An iron containing carbon in excess of the solubility in the austentite that exists in the alloy at the eutectic temperature. Cast iron also is defined here to include any iron-carbon alloys containing 1.2 percent or more carbon by weight.

(c) Ductile Iron. A cast iron that has been treated while molten with a master alloy containing an element such as magnesium or cerium to induce the formation of free graphite as nodules or spherules, which imparts a measurable degree of ductility to the cast metal.

(d) Gray Iron. A cast iron that gives a gray fracture due to the presence of flake graphite.

(e) Malleable Iron. A cast iron made by a prolonged anneal of white cast iron in which decarburization or graphitization, or both, take place to eliminate some or all of the cementite. Graphite is present in the form of temper carbon.

(f) Steel. An iron-base alloy containing carbon, manganese, and often other alloying elements. Steel is defined here to include only those iron-carbon alloys containing less than 1.2 percent carbon by weight.

(g) The “primary metal cast” shall mean the metal that is poured in the greatest quantity at an individual plant.

(h) Multiple Ferrous Melting Furnace Scrubber Configuration. A multiple ferrous melting furnace scrubber configuration is a configuration where two or more discrete wet scrubbing devices are employed in series in a single melting furnace exhaust gas stream. The ferrous melting furnace scrubber mass allowance shall be given to each discrete wet scrubbing device that has an associated wastewater discharge in a multiple ferrous melting furnace scrubber configuration. The mass allowance for each discrete wet scrubber shall be identical and based on the air flow of the exhaust gas stream that passes through the multiple scrubber configuration.

(i) Discrete Wet Scrubbing Device. A discrete wet scrubbing device is a distinct, stand-alone device that removes particulates and fumes from a contaminated gas stream by bringing the gas stream into contact with a scrubber liquor, usually water, and from which there is a wastewater discharge. Examples of discrete wet scrubbing devices are: Spray towers and chambers, venturi scrubbers (fixed and variable), wet caps, packed bed scrubbers, quenchers, and orifice scrubbers. Semi-wet scrubbing devices where water is added and totally evaporates prior to dry air pollution control are not considered to be discrete wet scrubbing devices. Ancillary scrubber operations such as fan washes and backwashes are not considered to be discrete wet scrubber devices. These ancillary operations are covered by the mass limitations of the associated scrubber. Aftercoolers are not considered to be discrete wet scrubbing devices, and water discharges from aftercooling are not regulated as a process wastewater in this category.

§ 464.32
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/1,000 kkg or lb/million lb of sand reclaimed; 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 limitations and annual average mass limitations 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)
0.0129
0.0071

Lead (T)
0.0353
0.0174

Zinc (T)
0.0656
0.025

Oil and grease
1.34
0.446

TSS
1.7
0.67

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/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0029

Lead (T)
0.79
0.39
0.0098

Zinc (T)
1.47
0.56
0.0179

Oil and grease
30
10
0.223

TSS
38
15
0.446

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 (5.33/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)
0.0138
0.0076

Lead (T)
0.0376
0.0185

Zinc (T)
0.0699
0.0266

Oil and grease
1.43
0.476

TSS
1.81
0.713

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) 2

Copper (T)
0.29
0.16
0.0031

Lead (T)
0.79
0.39
0.0105

Zinc (T)
1.47
0.56
0.019

Oil and grease
30
10
0.238

TSS
38
15
0.476

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 (5.7/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) 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)
0.218
0.12

Lead (T)
0.593
0.293

Zinc (T)
1.1
0.421

Total phenols
0.656
0.225

Oil and grease
22.5
7.51

TSS
28.5
11.3

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) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0488

Lead (T)
0.79
0.39
0.165

Zinc (T)
1.47
0.56
0.3

Total phenols
0.86
0.3
0.15

Oil and grease
30
10
3.76

TSS
38
15
7.51

pH
(3)
(3)
(3)

1 kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio (0.090/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) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) 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)
3.19
1.76

Lead (T)
8.7
4.3

Zinc (T)
16.2
6.17

Oil and grease
330
110

TSS
419
165

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) 2

Copper (T)
0.29
0.16
0.716

Lead (T)
0.79
0.39
2.42

Zinc (T)
1.47
0.56
4.41

Oil and grease
30
10
55.1

TSS
38
15
110

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.
(f) Melting Furnace 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)
1.02
0.561

Lead (T)
2.77
1.37

Zinc (T)
5.15
1.96

Total phenols
3.01
1.05

Oil and grease
105
35

TSS
133
52.6

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 average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.228

Lead (T)
0.79
0.39
0.771

Zinc (T)
1.47
0.56
1.4

Total phenols
0.86
0.3
0.701

Oil and grease
30
10
17.5

TSS
38
15
35

pH
(3)
(3)
(3)

1 kg/62.3 million Sm3 (pounds per billion SCF) or air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.42/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.
(g) 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)
0.0428
0.0236

Lead (T)
0.117
0.0576

Zinc (T)
0.217
0.0827

Oil and grease
4.43
1.48

TSS
5.61
2.22

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 average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0096

Lead (T)
0.79
0.39
0.0325

Zinc (T)
1.47
0.56
0.0591

Oil and grease
30
10
0.738

TSS
38
15
1.48

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 (17.7/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.
(h) Slag 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

Cooper (T)
0.0527
0.0291

Lead (T)
0.144
0.0709

Zinc (T)
0.267
0.102

Oil and grease
5.46
1.82

TSS
6.91
2.73

pH
(1)
(1)

1 Within the range 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)
0.29
0.16
0.0118

Lead (T)
0.79
0.39
0.04

Zinc (T)
1.47
0.56
0.0728

Oil and grease
30
10
0.909

TSS
38
15
1.82

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 (21.8/x) where x is the actual normalized process wasterwater 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.
(i) Wet Sand Reclamation 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 sand reclaimed

Cooper (T)
0.217
0.12

Lead (T)
0.59
0.291

Zinc (T)
1.1
0.418

Total phenols
0.642
0.224

Oil and grease
22.4
7.47

TSS
28.4
11.2

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) 2

Cooper (T)
0.29
0.16
0.0485

Lead (T)
0.79
0.39
0.164

Zinc (T)
1.47
0.56
0.299

Total phenols
0.86
0.3
0.149

Oil and grease
30
10
3.73

TSS
38
15
7.47

pH
(3)
(3)
(3)

1 kg/1,000 kkg (pounds per million pounds) of sand reclaimed.
2 These concentrations must be multiplied by the ratio of (89.5/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of sand reclaimed) 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 21761, June 16, 1986]
§ 464.33
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/1,000 kkg or lb/million lb of sand reclaimed; 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. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
0.0129
0.0071

Lead (T)
0.0237
0.0116

Zinc (T)
0.0437
0.0165

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0029

Lead (T)
0.53
0.26
0.0067

Zinc (T)
0.98
0.37
0.0116

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (5.33/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
0.0129
0.0071

Lead (T)
0.0353
0.0174

Zinc (T)
0.0656
0.025

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0029

Lead (T)
0.79
0.39
0.0098

Zinc (T)
1.47
0.56
0.0179

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (5.33/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. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

BAT Effluent Limitations
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/100 kkg (pounds per million pounds) of metal poured

Copper (T)
0.0138
0.0076

Lead (T)
0.0252
0.0124

Zinc (T)
0.0466
0.0176

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l)2
(mg/l)2

Copper (T)
0.29
0.16
0.0031

Lead (T)
0.53
0.26
0.0071

Zinc (T)
0.98
0.37
0.0124

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (5.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
0.0138
0.0076

Lead (T)
0.0376
0.0185

Zinc (T)
0.0699
0.0266

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l)2
(mg/l)2

Copper (T)
0.29
0.16
0.0031

Lead (T)
0.79
0.39
0.0105

Zinc (T)
1.47
0.56
0.019

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (5.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

BAT 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)
0.218
0.12

Lead (T)
0.398
0.195

Zinc (T)
0.736
0.278

Total phenols
0.646
0.225

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l)2
(mg/l)2

Copper (T)
0.29
0.16
0.0488

Lead (T)
0.53
0.26
0.113

Zinc (T)
0.98
0.37
0.195

Total phenols
0.86
0.3
0.15

1 kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.09/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

BAT 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)
0.218
0.12

Lead (T)
0.593
0.293

Zinc (T)
1.1
0.421

Total phenols
0.656
0.225

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l)2
(mg/l)2

Copper (T)
0.29
0.16
0.0488

Lead (T)
0.79
0.39
0.165

Zinc (T)
1.47
0.56
0.3

Total phenols
0.86
0.3
0.15

1 kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.09/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
3.19
1.76

Lead (T)
5.84
2.86

Zinc (T)
10.8
4.07

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.716

Lead (T)
0.53
0.26
1.65

Zinc (T)
0.98
0.37
2.86

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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
3.19
1.76

Lead (T)
8.7
4.3

Zinc (T)
16.2
6.17

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.716

Lead (T)
0.79
0.39
2.42

Zinc (T)
1.47
0.56
4.41

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.
(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

BAT 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)
1.02
0.561

Lead (T)
1.86
0.911

Zinc (T)
3.44
1.3

Total Phenols
3.01
1.05

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.228

Lead (T)
0.53
0.26
0.526

Zinc (T)
0.98
0.37
0.911

Total Phenols
0.86
0.3
0.701

1 kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed
2 These concentrations must be multiplied by the ratio of (0.42/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

BAT 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)
1.02
0.561

Lead (T)
2.77
1.37

Zinc (T)
5.15
1.96

Total Phenols
3.01
1.05

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.228

Lead (T)
0.79
0.39
0.771

Zinc (T)
1.47
0.56
1.4

Total Phenols
0.86
0.3
0.701

1 kg/62.3 million Sm 3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.42/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
0.0428
0.0236

Lead (T)
0.0783
0.0384

Zinc (T)
0.145
0.0546

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0096

Lead (T)
0.53
0.26
0.0222

Zinc (T)
0.98
0.37
0.0384

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (17.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
0.0428
0.0236

Lead (T)
0.117
0.0576

Zinc (T)
0.217
0.0827

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0096

Lead (T)
0.79
0.39
0.0325

Zinc (T)
1.47
0.56
0.0591

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (17.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
0.0527
0.0291

Lead (T)
0.0964
0.0473

Zinc (T)
0.178
0.0673

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0118

Lead (T)
0.53
0.26
0.0273

Zinc (T)
0.98
0.37
0.0473

1 Kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (21.8/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
0.0527
0.0291

Lead (T)
0.144
0.0709

Zinc (T)
0.267
0.102

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0118

Lead (T)
0.79
0.39
0.04

Zinc (T)
1.47
0.56
0.0728

1 kg/1,000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (21.8/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductible or gray iron and to plants that are casting malleable iron where greater than 3,557 tons of metal are poured per year.

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 sand reclaimed

Copper (T)
0.217
0.12

Lead (T)
0.396
0.194

Zinc (T)
0.732
0.276

Total Phenols
0.642
0.224

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0485

Lead (T)
0.53
0.26
0.112

Zinc (T)
0.98
0.37
0.194

Total Phenols
0.86
0.3
0.149

1 kg/1000 kkg (pounds per million pounds) of sand reclaimed.
2 These concentrations must be multiplied by the ratio of (89.5/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of sand reclaimed) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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 sand reclaimed

Copper (T)
0.217
0.12

Lead (T)
0.59
0.291

Zinc (T)
1.1
0.418

Total Phenols
0.642
0.224

PSNS
Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0485

Lead (T)
0.79
0.39
0.164

Zinc (T)
1.47
0.56
0.299

Total Phenols
0.86
0.3
0.149

1 kg/1000 kkg (pounds per million pounds) of sand reclaimed.
2 These concentrations must be multiplied by the ratio of (89.5/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of sand reclaimed) for a specific plant.
[50 FR 45247, Oct. 30, 1985; 51 FR 21761, June 16, 1986]
§ 464.34
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/1,000 kkg or lb/million lb of sand reclaimed; 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. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
0.0129
0.0071

Lead (T)
0.0237
0.0116

Zinc (T)
0.0437
0.0165

Oil and grease
1.34
0.446

TSS
0.67
0.536

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) 2

Copper (T)
0.29
0.16
0.0029

Lead (T)
0.53
0.26
0.0067

Zinc (T)
0.98
0.37
0.0116

Oil and grease
30
10
0.223

TTS
15
12
0.116

pH
(3)
(3)
(3)

1 kg/1000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (5.33/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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
0.0129
0.0071

Lead (T)
0.0353
0.0174

Zinc (T)
0.0656
0.025

Oil and grease
1.34
0.446

TSS
1.7
0.67

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/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0029

Lead (T)
0.79
0.39
0.0098

Zinc (T)
1.47
0.56
0.0179

Oil and grease
30
10
0.223

TTS
38
15
0.446

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 (5.35/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) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
0.0138
0.0076

Lead (T)
0.0252
0.0124

Zinc (T)
0.0466
0.0176

Oil and grease
1.43
0.476

TSS
0.713
0.571

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) 2

Copper (T)
0.29
0.16
0.0031

Lead (T)
0.53
0.26
0.0071

Zinc (T)
0.98
0.37
0.0124

Oil and grease
30
10
0.238

TSS
15
12
0.124

pH
(3)
(3)
(3)

1 Kg/1000 kkg (pounds per million pounds) of metal poured.
2 Within the range of 7.0 to 10.0 at all times.
3 These concentrations must be multiplied by the ratio of (5.7/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
0.0138
0.0076

Lead (T)
0.0376
0.0185

Zinc (T)
0.0699
0.0266

Oil and grease
1.43
0.476

TSS
1.81
0.713

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) 2

Copper (T)
0.29
0.16
0.0031

Lead (T)
0.79
0.39
0.0105

Zinc (T)
1.47
0.56
0.019

Oil and grease
30
10
0.238

TSS
38
15
0.476

pH
(3)
(3)
(3)

1 Kg/1000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (5.7/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) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductible or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

NSPS
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)
0.218
0.12

Lead (T)
0.398
0.195

Zinc (T)
0.736
0.278

Total Phenols
0.646
0.225

Oil and grease
22.5
7.51

TSS
11.3
9.01

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) 2

Copper (T)
0.29
0.16
0.0488

Lead (T)
0.53
0.26
0.113

Zinc (T)
0.98
0.37
0.195

Total phenols
0.86
0.3
0.15

Oil and grease
30
10
3.76

TSS
15
12
1.95

pH
(3)
(3)
(3)

1 kg/62.3 millions Sm3 (pound per billion SCF) of air scrubbed.
2 Within the range of 7.0 to 10.0 at all times.
3 These concentrations must be multiplied by the ratio of (0.09/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

NSPS
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)
0.218
0.12

Lead (T)
0.593
0.293

Zinc (T)
1.1
0.421

Total phenols
0.656
0.225

Oil and grease
22.5
7.51

TSS
28.5
11.3

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) 2

Copper (T)
0.29
0.16
0.0488

Lead (T)
0.79
0.39
0.165

Zinc (T)
1.47
0.56
0.3

Total phenols
0.86
0.3
0.15

Oil and grease
30
10
3.76

TSS
38
15
7.51

pH
(3)
(3)
(3)

1 kg/62.3 millions Sm3 (pound per billion SCF) of air scrubbed.
2 Within the range of 7.0 to 10.0 at all times.
3 These concentrations must be multiplied by the ratio of (0.09/) where is the actual normalized process wastewater flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(d) Grinding Scrubber Operations. No discharge of process wastewater pollutants to navigable waters.

(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
3.19
1.76

Lead (T)
5.84
2.86

Zinc (T)
10.8
4.07

Oil and grease
330
110

TSS
165
132

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) 2

Copper (T)
0.29
0.16
0.716

Lead (T)
0.53
0.26
1.65

Zinc (T)
0.98
0.37
2.86

Oil and grease
30
10
55.1

TSS
15
12
28.6

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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
3.19
1.76

Lead (T)
8.7
4.3

Zinc (T)
16.2
6.17

Oil and grease
330
110

TSS
419
165

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) 2

Copper (T)
0.29
0.16
0.716

Lead (T)
0.79
0.39
2.42

Zinc (T)
1.47
0.56
4.41

Oil and grease
30
10
55.1

TSS
38
15
110

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.
(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
1.02
0.561

Lead (T)
1.86
0.911

Zinc (T)
3.44
1.30

Total phenols
3.01
1.05

Oil and grease
105
35

TSS
52.6
42.1

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
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.228

Lead (T)
0.53
0.26
0.526

Zinc (T)
0.98
0.37
0.911

Total phenols
0.86
0.3
0.701

Oil and grease
30
10
17.5

TSS
15
12
9.11

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 (0.42/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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
1.02
0.561

Lead (T)
2.77
1.37

Zinc (T)
5.15
1.96

Total phenols
3.01
1.05

Oil and grease
105
35

TSS
133
52.6

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
(mg/l) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.228

Lead (T)
0.79
0.39
0.771

Zinc (T)
1.47
0.56
1.4

Total phenols
0.38
0.3
0.701

Oil and grease
30
10
17.5

TSS
38
15
35

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 (0.42/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.
(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
0.0428
0.0236

Lead (T)
0.0783
0.0384

Zinc (T)
0.0145
0.0546

Oil and grease
4.43
1.48

TSS
2.22
1.77

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) 1

Copper (T)
0.29
0.16
0.0096

Lead (T)
0.53
0.26
0.0222

Zinc (T)
0.98
0.37
0.0384

Oil and grease
30
10
0.738

TSS
15
12
0.384

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 (17.7/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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
0.0428
0.0236

Lead (T)
0.117
0.0576

Zinc (T)
0.217
0.0827

Oil and grease
4.43
1.48

TSS
5.61
2.22

pH
(1)
(1)

1 Within the range of 7.0 to 10.0 at all times.
Maximum for any 1 day
Maxium for monthly average
Annual average 1
(mg/1) 2
(mg/l) 2

Copper (T)
0.29
0.16
0.0096

Lead (T)
0.79
0.39
0.0325

Zinc (T)
1.47
0.56
0.0591

Oil and grease
30
10
0.738

TSS
38
15
1.48

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 (17.7/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.
(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

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)
0.0527
0.0291

Lead (T)
0.0964
0.0473

Zinc (T)
0.178
0.0673

Oil and grease
5.46
1.82

TSS
2.73
2.18

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) 2

Copper (T)
0.29
0.16
0.0118

Lead (T)
0.53
0.26
0.0273

Zinc (T)
0.98
0.37
0.0473

Oil and grease
30
10
0.909

TSS
15
12
0.473

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 (21.8/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.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

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)
0.0527
0.0291

Lead (T)
0.144
0.0709

Zinc (T)
0.267
0.102

Oil and grease
5.46
1.82

TSS
6.91
2.73

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
(mg/l) 2
(mg/1) 2

Copper (T)
0.29
0.16
0.0118

Lead (T)
0.79
0.39
0.04

Zinc (T)
1.47
0.56
0.0728

Oil and grease
30
10
0.909

TSS
38
15
1.82

pH
(3)
(3)
(3)

1 kg/1000 kkg (pounds per million pounds) of metal poured.
2 These concentrations must be multiplied by the ratio of (21.8/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.
(i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductile or gray iron and to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year.

NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of sand reclaimed

Copper (T)
0.217
0.12

Lead (T)
0.396
0.194

Zinc (T)
0.732
0.276

Total phenols
0.642
0.224

Oil and grease
22.4
7.47

TSS
11.2
8.96

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)2

Copper (T)
0.29
0.16
0.0485

Lead (T)
0.53
0.26
0.112

Zinc (T)
0.98
0.37
0.194

Total phenols
0.86
0.3
0.149

Oil and grease
30
10
3.73

TSS
15
12
1.94

pH
(3)
(3)
(3)

1 kg/1,000 kkg (pounds per million pounds) of sand reclaimed.
2 These concentrations must be multiplied by the ratio of (89.5/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of sand reclaimed) for a specific plant.
3 Within the range of 7.0 to 10.0 at all times.
(2) Applicable to plants that are casting primarily steel and to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year.

NSPS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of sand reclaimed

Copper (T)
0.217
0.12

Lead (T)
0.59
0.291

Zinc (T)
1.1
0.418

Total phenols
0.642
0.224

Oil and grease
22.4
7.47

TSS
28.4
11.2

pH
(1)
(1)

1 Within the range of 7.0 to at all times.
Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l)2
(mg/l)2

Copper (T)
0.29
0.16
0.0485

Lead (T)
0.79
0.39
0.164

Zinc (T)
1.47
0.56
0.299

Total phenols
0.86
0.3
0.149

Oil and grease
30
10
3.73

TSS
38
15
7.47

pH
(3)
(3)
(3)

1 kg/1,000 kkg (pounds per million pounds) of sand reclaimed.
2 These concentrations must be multiplied by the ratio of (89.5/x) where x is the actual normalized process wastewater flow (in gallons per 1,000 pounds of sand reclaimed) 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 21761, June 16, 1986]
§ 464.35
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. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.0129
0.0071

Lead (T)
0.0237
0.0116

Zinc (T)
0.0437
0.0165

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.0129
0.0071

Lead (T)
0.0353
0.0174

Zinc (T)
0.0656
0.025

(b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.0138
0.0076

Lead (T)
0.0252
0.0124

Zinc (T)
0.0466
0.0176

TTO
0.0257
0.00838

Oil and grease (for alternate monitoring)
1.43
0.476

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.0138
0.0076

Lead (T)
0.0376
0.0185

Zinc (T)
0.0699
0.0266

TTO
0.0257
0.00838

Oil and grease (for alternate monitoring)
1.43
0.476

(c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.218
0.12

Lead (T)
0.398
0.195

Zinc (T)
0.736
0.278

Total Phenols
0.646
0.225

TTO
2.04
0.664

Oil and Grease (for alternate monitoring)
22.5
7.51

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.218
0.12

Lead (T)
0.593
0.293

Zinc (T)
1.1
0.421

Total Phenols
0.656
0.225

TTO
2.04
0.664

Oil and Grease (for alternate monitoring)
22.5
7.51

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

(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
3.19
1.76

Lead (T)
5.84
2.86

Zinc (T)
10.8
4.07

TTO
13.2
4.3

Oil and Grease (for alternate monitoring)
330
110

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
3.19
1.76

Lead (T)
8.7
4.3

Zinc (T)
16.2
6.17

TTO
13.2
4.3

Oil and Grease (for alternate monitoring)
330
110

(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

PSES
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)
1.02
0.561

Lead (T)
1.86
0.911

Zinc (T)
3.44
1.30

Total phenols
3.01
1.05

TTO
8.34
2.73

Oil and grease (for alternate monitoring)
105
35

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
1.02
0.561

Lead (T)
2.77
1.37

Zinc (T)
5.15
1.96

Total phenols
3.01
1.05

TTO
8.34
2.73

Oil and grease (for alternate monitoring)
105
35

(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.0428
0.0236

Lead (T)
0.0783
0.0384

Zinc (T)
0.145
0.0546

TTO
0.0797
0.026

Oil and grease (for alternate monitoring)
4.43
1.48

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.0428
0.0236

Lead (T)
0.117
0.0576

Zinc (T)
0.217
0.0827

TTO
0.0797
0.026

Oil and grease (for alternate monitoring)
4.43
1.48

(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.0527
0.0291

Lead (T)
0.0964
0.0473

Zinc (T)
0.178
0.0673

TTO
0.0257
0.00838

Oil and grease (for alternate monitoring)
5.46
1.82

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.0527
0.0291

Lead (T)
0.144
0.0709

Zinc (T)
0.267
0.102

TTO
0.0257
0.00838

Oil and grease (for alternate monitoring)
5.46
1.82

(i) West Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting gray iron where greater than 1,784 tons of metal are poured per year.

PSES
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of sand reclaimed

Copper (T)
0.217
0.12

Lead (T)
0.396
0.194

Zinc (T)
0.732
0.276

Total Phenols
0.642
0.224

TTO
1.18
0.386

Oil and grease (for alternate monitoring)
22.4
7.47

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

PSES
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of sand reclaimed

Copper (T)
0.217
0.12

Lead (T)
0.59
0.291

Zinc (T)
1.1
0.418

Total Phenols
0.642
0.224

TTO
1.18
0.386

Oil and grease (for alternate monitoring)
22.4
7.47

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]
§ 464.36
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. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.0129
0.0071

Lead (T)
0.0237
0.0116

Zinc (T)
0.0437
0.0165

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.0129
0.0071

Lead (T)
0.0353
0.0174

Zinc (T)
0.0656
0.025

(b) Casting Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.0138
0.0076

Lead (T)
0.0252
0.0124

Zinc (T)
0.0466
0.0176

TTO
0.0257
0.00838

Oil and Grease (for alternate monitoring)
1.43
0.476

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.0138
0.0076

Lead (T)
0.0376
0.0185

Zinc (T)
0.0699
0.0266

TTO
0.0257
0.00838

Oil and Grease (for alternate monitoring)
1.43
0.476

(c) Dust Collection Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

PSNS
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)
0.218
0.12

Lead (T)
0.398
0.195

Zinc (T)
0.736
0.278

Total Phenols
0.646
0.225

TTO
2.04
0.664

Oil and Grease (for alternate monitoring)
22.5
7.51

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

PSNS
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)
0.218
0.12

Lead (T)
0.593
0.293

Zinc (T)
1.1
0.421

Total Phenols
0.656
0.225

TTO
2.04
0.664

Oil and Grease (for alternate monitoring)
22.5
7.51

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

(e) Investment Casting. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
3.19
1.76

Lead (T)
5.84
2.86

Zinc (T)
10.8
4.07

TTO
13.2
4.3

Oil and Grease (for alternate monitoring)
330
110

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
3.19
1.76

Lead (T)
8.7
4.3

Zinc (T)
16.2
6.17

TTO
13.2
4.3

Oil and Grease (for alternate monitoring)
330
110

(f) Melting Furnace Scrubber Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

PSNS
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)
1.02
0.561

Lead (T)
1.86
0.911

Zinc (T)
3.44
1.3

Total Phenols
3.01
1.05

TTO
8.34
2.73

Oil and Grease (for alternate monitoring)
105
35

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

PSNS
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)
1.02
0.561

Lead (T)
2.77
1.37

Zinc (T)
5.15
1.96

Total Phenols
3.01
1.05

TTO
8.34
2.73

Oil and Grease (for alternate monitoring)
105
35

(g) Mold Cooling Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.0428
0.0236

Lead (T)
0.0783
0.0384

Zinc (T)
0.145
0.0546

TTO
0.0797
0.026

Oil and Grease (for alternate monitoring)
4.43
1.48

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.0428
0.0236

Lead (T)
0.117
0.0576

Zinc (T)
0.217
0.0827

TTO
0.0797
0.026

Oil and Grease (for alternate monitoring)
4.43
1.48

(h) Slag Quench Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

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)
0.0527
0.0291

Lead (T)
0.0964
0.0473

Zinc (T)
0.178
0.0673

TTO
0.0257
0.00838

Oil and grease (for alternate monitoring)
5.46
1.82

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

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)
0.0527
0.0291

Lead (T)
0.144
0.0709

Zinc (T)
0.267
0.102

TTO
0.0257
0.00838

Oil and grease (for alternate monitoring)
5.46
1.82

(i) Wet Sand Reclamation Operations. (1) Applicable to plants that are casting primarily ductile iron, to plants that are casting primarily malleable iron where greater than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where greater than 1,784 tons of metal are poured per year.

PSNS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of sand reclaimed

Copper (T)
0.217
0.12

Lead (T)
0.396
0.194

Zinc (T)
0.732
0.276

Total phenols
0.642
0.224

TTO
1.18
0.386

Oil and grease (for alternate monitoring)
22.4
7.47

(2) Applicable to plants that are casting primarily steel, to plants that are casting primarily malleable iron where equal to or less than 3,557 tons of metal are poured per year, and to plants that are casting primarily gray iron where equal to or less than 1,784 tons of metal are poured per year.

PSNS
Pollutant or pollutant property
Maximum for any 1 day
Maximum for monthly average
kg/1,000 kkg (pounds per million pounds) of sand reclaimed

Copper (T)
0.217
0.12

Lead (T)
0.59
0.291

Zinc (T)
1.10
0.418

Total phenols
0.642
0.224

TTO
1.18
0.386

Oil and grease (for alternate monitoring)
22.4
7.47

§ 464.37
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
Subpart D—Zinc Casting Subcategory
§ 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).

§ 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]
§ 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 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/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)
0.0344
0.0187

Lead (T)
0.0353
0.0174

Zinc (T)
0.0509
0.0192

Oil and grease
1.34
0.446

TSS
1.7
0.67

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) 2

Copper (T)
0.77
0.42
0.0076

Lead (T)
0.79
0.39
0.0098

Zinc (T)
1.14
0.43
0.0121

Oil and grease
30
10
0.223

TSS
38
15
0.446

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)
0.0066
0.0036

Lead (T)
0.0068
0.0034

Zinc (T)
0.0098
0.0037

Total phenols
0.0074
0.0026

Oil and grease
0.259
0.0864

TTS
0.328
0.13

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) 2

Copper (T)
0.77
0.42
0.0015

Lead (T)
0.79
0.39
0.0019

Zinc (T)
1.14
0.43
0.0023

Total phenols
0.86
0.3
0.0017

Oil and grease
30
10
0.0432

TSS
38
15
0.0864

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)
1.56
0.852

Lead (T)
1.6
0.791

Zinc (T)
2.31
0.872

Total Phenols
1.74
0.608

Oil and grease
60.8
20.3

TSS
77.1
30.4

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) 2

Copper (T)
0.77
0.42
0.345

Lead (T)
0.79
0.39
0.446

Zinc (T)
1.14
0.43
0.548

Total Phenols
0.86
0.3
0.406

Oil and grease
30
10
10.1

TSS
38
15
20.3

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)
0.304
0.166

Lead (T)
0.311
0.154

Zinc (T)
0.449
0.17

Oil and grease
11.8
3.94

TSS
15
5.91

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) 2

Copper (T)
0.77
0.42
0.067

Lead (T)
0.79
0.39
0.0867

Zinc (T)
1.14
0.43
0.106

Oil and grease
30
10
1.97

TSS
38
15
3.94

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]
§ 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)
0.0344
0.0187

Lead (T)
0.0237
0.0116

Zinc (T)
0.0339
0.0129

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.0076

Lead (T)
0.53
0.26
0.0067

Zinc (T)
0.76
0.29
0.008

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)
0.0066
0.0036

Lead (T)
0.0046
0.0022

Zinc (T)
0.0066
0.0025

Total phenols
0.0074
0.0026

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.0015

Lead (T)
0.53
0.26
0.0013

Zinc (T)
0.76
0.29
0.0016

Total phenols
0.86
0.3
0.0017

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 Sm3 (pounds per billion SCF) of air scrubbed

Copper (T)
1.56
0.852

Lead (T)
1.07
0.527

Zinc (T)
1.54
0.588

Total phenolse
1.74
0.608

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l) 2
(mg/l) 2

Copper (T)
0.77
0.42
0.345

Lead (T)
0.53
0.26
0.304

Zinc (T)
0.76
0.29
0.365

Total phenols
0.86
0.3
0.406

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)
0.304
0.166

Lead (T)
0.209
0.103

Zinc (T)
0.3
0.114

Maximum for any 1 day
Maximum for monthly average
Annual average 1
(mg/l)2
(mg/l)2

Copper (T)
0.77
0.42
0.067

Lead (T)
0.53
0.26
0.0591

Zinc (T)
0.76
0.29
0.071

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]
§ 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 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 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)
0.0344
0.0187

Lead (T)
0.0237
0.0116

Zinc (T)
0.0339
0.0129

Oil and grease
1.34
0.446

TSS
0.67
0.536

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)2

Copper (T)
0.77
0.42
0.0076

Lead (T)
0.53
0.26
0.0067

Zinc (T)
0.76
0.29
0.008

Oil and grease
30
10
0.223

TSS
15
12
0.116

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)
0.0066
0.0036

Lead (T)
0.0046
0.0022

Zinc (T)
0.0066
0.0025

Total phenols
0.0074
0.0026

Oil and grease
0.259
0.0864

TSS
0.13
0.104

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) 2

Copper (T)
0.77
0.42
0.0015

Lead (T)
0.53
0.26
0.0013

Zinc (T)
0.76
0.29
0.0016

Total phenols
0.86
0.3
0.0017

Oil and grease
30
10
0.0432

TSS
15
12
0.0225

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 Sm3 (pounds per billion SCF) of air scrubbed

Copper (T)
1.56
0.852

Lead (T)
1.07
0.527

Zinc (T)
1.54
0.588

Total phenols
1.74
0.608

Oil and grease
60.8
20.3

TSS
30.4
24.3

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)2

Copper (T)
0.77
0.42
0.345

Lead (T)
0.53
0.26
0.304

Zinc (T)
0.76
0.29
0.365

Total phenols
0.86
0.3
0.406

Oil and grease
30
10
10.1

TSS
15
12
5.27

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)
0.304
0.166

Lead (T)
0.209
0.103

Zinc (T)
0.3
0.114

Oil and grease
11.8
3.94

TSS
5.91
4.73

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) 2

Copper (T)
0.77
0.42
0.067

Lead (T)
0.53
0.26
0.0591

Zinc (T)
0.76
0.29
0.071

Oil and grease
30
10
1.97

TSS
15
12
1.03

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]
§ 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)
0.0344
0.0187

Lead (T)
0.0237
0.0116

Zinc (T)
0.0339
0.0129

TTO
0.093
0.0304

Oil and grease (for alternate monitoring)
1.34
0.446

(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)
0.0066
0.0036

Lead (T)
0.0046
0.0022

Zinc (T)
0.0066
0.0025

Total phenols
0.0074
0.0026

TTO
0.0196
0.0064

Oil and grease for alternate monitoring)
0.259
0.0864

(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)
1.56
0.852

Lead (T)
1.07
0.527

Zinc (T)
1.54
0.588

Total phenols
1.74
0.608

TTO
3.95
1.29

Oil and grease for alternate monitoring)
60.8
20.3

(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)
0.304
0.166

Lead (T)
0.209
0.103

Zinc (T)
0.3
0.114

TTO
0.821
0.268

Oil and grease for alternate monitoring)
11.8
3.94

§ 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)
0.0344
0.0187

Lead (T)
0.0237
0.0116

Zinc (T)
0.0339
0.0129

TTO
0.093
0.0304

Oil and grease (for alternate monitoring)
1.34
0.446

(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)
0.0066
0.0036

Lead (T)
0.0046
0.0022

Zinc (T)
0.0066
0.0025

Total phenols
0.0074
0.0026

TTO
0.0196
0.0064

Oil and grease (for alternate monitoring)
0.259
0.0864

(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)
1.56
0.852

Lead (T)
1.07
0.527

Zinc (T)
1.54
0.588

Total phenols
1.74
0.608

TTO
3.95
1.29

Oil and grease (for alternate monitoring)
60.8
20.3

(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)
0.304
0.166

Lead (T)
0.209
0.103

Zinc (T)
0.3
0.114

TTO
0.821
0.268

Oil and grease (for alternate monitoring)
11.8
3.94

[50 FR 45247, Oct. 30, 1985; 51 FR 21762, June 16, 1986]
§ 464.47
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]