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Title 40 → Chapter I → Subchapter N → Part 464 → Subpart C |

Title 40: Protection of Environment

PART 464—METAL MOLDING AND CASTING POINT SOURCE CATEGORY

Contents

§464.30 Applicability; description of the ferrous casting subcategory.

§464.31 Specialized definitions.

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

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

§464.34 New source performance standards.

§464.35 Pretreatment standards for existing sources.

§464.36 Pretreatment standards for new sources.

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

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).

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.

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 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 |

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 Sm^{3} (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 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^{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 Sm^{3} (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}) |

^{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 | 0.0096 |

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.

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]

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 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 |

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 Sm^{3} (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 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 |

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 Sm^{3} (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.

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 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 | 1.3 |

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.

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) | 1.02 | 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.

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.

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.

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]

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.

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.

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 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 |

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 Sm^{3} (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.

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) | 0.218 | 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 Sm^{3} (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.

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.

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.

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.

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.

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]

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 |

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 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 |

TTO | 8.34 | 2.73 |

Oil and grease (for alternate monitoring) | 105 | 35 |

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 |

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 |

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]

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 |

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 |

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 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 |

PSNS

Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
---|---|---|

kg/62.3 million Sm^{3} (pounds per billion SCF) of air scrubbed | ||

Copper (T) | 0.218 | 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 |

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 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 | 1.3 |

Total Phenols | 3.01 | 1.05 |

TTO | 8.34 | 2.73 |

Oil and Grease (for alternate monitoring) | 105 | 35 |

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) | 1.02 | 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 |

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 |

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 |

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 |