Wis. Admin. Code Department of Natural Resources NR 256.35
Except as provided in ss. NR 211.13 and 211.14, any existing source subject to this subchapter which introduces pollutants into a publicly owned treatment works shall comply with ch. NR 211 and achieve the following pretreatment standards for existing sources. Grinding scrubber operations may not discharge process wastewater pollutants to a POTW.
Table 63
FERROUS CASTING SUBCATEGORY CASTING CLEANING OPERATIONS
PSES | ||||
Maximum for any 1 day (1) | Maximum for monthly average (1) | Maximum for any 1 day (2) | Maximum for monthly average (2) | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | |||
Copper (T) | 0.0129 | 0.0071 | 0.0129 | 0.0071 |
Lead (T) | 0.0237 | 0.0116 | 0.0353 | 0.0174 |
Zinc (T) | 0.0437 | 0.0165 | 0.0656 | 0.025 |
(1) Applies to plants which cast primarily ductile iron, primarily malleable iron where metal poured is greater than 3,557 tons per year, or primarily gray iron where metal poured is greater than 1.784 tons per year.
(2) Applies to plants which cast primarily steel, primarily malleable iron where metal poured is equal to or less than 3,557 tons per year, or primarily gray iron where metal poured is equal to or less than 1,784 tons per year.
Table 64
FERROUS CASTING SUBCATEGORY CASTING QUENCH OPERATIONS
PSES | ||||
Maximum for any 1 day (1) | Maximum for monthly average (1) | Maximum for any 1 day (2) | Maximum for monthly average (2) | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | |||
Copper (T) | 0.0138 | 0.0076 | 0.0138 | 0.0076 |
Lead (T) | 0.0252 | 0.0124 | 0.0376 | 0.0185 |
Zinc (T) | 0.0466 | 0.0176 | 0.0699 | 0.0266 |
TTO(3) | 0.0257 | 0.00838 | 0.0257 | 0.00838 |
Oil and grease(4) | 1.43 | 0.476 | 1.43 | 0.476 |
(1) Applies to plants which cast primarily ductile iron, primarily malleable iron where metal poured is greater than 3,557 tons per year, or primarily gray iron where metal poured is greater than 1.784 tons per year.
(2) Applies to plants which cast primarily steel, primarily malleable iron where metal poured is equal to or less than 3,557 tons per year, or primarily gray iron where metal poured is equal to or less than 1,784 tons per year.
(3) TTO is comprised of the following toxic organic pollutants
chloroform (trichloromethane)
2,4-dimethylphenol
(4) Use as alternative to monitoring for TTO.
Table 65
FERROUS CASTING SUBCATEGORY DUST COLLECTION SCRUBBER OPERATIONS
PSES | ||||
Maximum for any 1 day (1) | Maximum for monthly average (1) | Maximum for any 1 day (2) | Maximum for monthly average (2) | |
Pollutant or pollutant property | kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed | |||
Copper (T) | 0.218 | 0.12 | 0.218 | 0.12 |
Lead (T) | 0.398 | 0.195 | 0.593 | 0.293 |
Zinc (T) | 0.736 | 0.278 | 1.1 | 0.421 |
Total phenols | 0.646 | 0.225 | 0.656 | 0.225 |
TTO(4) | 2.04 | 0.664 | 2.04 | 0.664 |
Oil and grease(5) | 22.5 | 7.51 | 22.5 | 7.51 |
(1) Applies to plants which cast primarily ductile iron, primarily malleable iron where metal poured is greater than 3,557 tons per year, or primarily gray iron where metal poured is greater than 1.784 tons per year.
(2) Applies to plants which cast primarily steel, primarily malleable iron where metal poured is equal to or less than 3,557 tons per year, or primarily gray iron where metal poured is equal to or less than 1,784 tons per year.
(3) TTO is comprised of the following toxic organic pollutants
acenaphthene
chloroform (trichloromethane)
2,4-dichlorophenol
2,4-dimethylphenol
fluoranthene
methylene chloride (dichloromethane)
naphthalene
pentachlorophenol
phenol
bis (2-ethylhexyl) phthalate
butyl benzyl phthalate
di-n-butyl phthalate
diethyl phthalate
benzo (a)anthracene (1,2-benzanthracene)
chrysene
acenaphthylene
anthracene
flourene
phenanthrene
pyrene
(4) Use as alternative to monitoring for TTO.
Table 66
FERROUS CASTING SUBCATEGORY INVESTMENT CASTING
PSES | ||||
Maximum for any 1 day (1) | Maximum for monthly average (1) | Maximum for any 1 day (2) | Maximum for monthly average (2) | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | |||
Copper (T) | 3.19 | 1.76 | 3.19 | 1.76 |
Lead (T) | 5.84 | 2.86 | 8.7 | 4.3 |
Zinc (T) | 10.8 | 4.07 | 16.2 | 6.17 |
TTO(3) | 13.2 | 4.3 | 13.2 | 4.3 |
Oil and grease(4) | 330 | 110 | 330 | 110 |
(1) Applies to plants which cast primarily ductile iron, primarily malleable iron where metal poured is greater than 3,557 tons per year, or primarily gray iron where metal poured is greater than 1.784 tons per year.
(2) Applies to plants which cast primarily steel, primarily malleable iron where metal poured is equal to or less than 3,557 tons per year, or primarily gray iron where metal poured is equal to or less than 1,784 tons per year.
(3) TTO is comprised of the following toxic organic pollutants:
chloroform (trichloromethane)
methylene chloride (dichloromethane)
bis (2-ethylhexyl) phthalate
acenaphthylene
pyrene
(4) Use as alternative to monitoring for TTO.
Table 67
FERROUS CASTING SUBCATEGORY MELTING FURNACE SCRUBBER OPERATIONS(1)
PSES | ||||
Maximum for any 1 day (1) | Maximum for monthly average (1) | Maximum for any 1 day (2) | Maximum for monthly average (2) | |
Pollutant or pollutant property | kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed | |||
Copper (T) | 1.02 | 0.561 | 1.02 | 0.561 |
Lead (T) | 1.86 | 0.911 | 2.77 | 1.37 |
Zinc (T) | 3.44 | 1.30 | 5.15 | 1.96 |
Total phenols | 3.01 | 1.05 | 3.01 | 1.05 |
TTO(4) | 8.34 | 2.73 | 8.34 | 2.73 |
Oil and grease(5) | 105 | 35 | 105 | 35 |
(1) In a multiple ferrous melting furnace scrubber configuration, each discrete wet scrubbing device with an associated wastewater discharge shall be given the mass allowance specified. The allowance will be identical for each device and based on the airflow of the exhaust gas stream that passes through the multiple scrubber configuration.
(2) Applies to plants which cast primarily ductile iron, primarily malleable iron where metal poured is greater than 3,557 tons per year, or primarily gray iron where metal poured is greater than 1,784 tons per year.
(3) Applies to plants which cast primarily steel, primarily malleable iron where metal poured is equal to or less than 3,557 tons per year, or primarily gray iron where metal poured is equal to or less than 1,784 tons per year.
(3) TTO is comprised of the following toxic organic pollutants:
chloroform (trichloromethane)
2,4-dichlorophenol
2,4-dimethylphenol
fluoranthene
methylene chloride (dichloromethane)
naphthalene
phenol
bis (2-ethylhexyl) phthalate
butyl benzyl phthalate
di-n-butyl phthalalte
benzo (a)anthracene (1,2-benzanthracene)
chrysene
acenaphthylene
anthracene
fluorene
phenanthrene
pyrene
(4) Use as alternative to monitoring for TTO.
Table 68
FERROUS CASTING SUBCATEGORY MOLD COOLING OPERATIONS
PSES | ||||
Maximum for any 1 day (1) | Maximum for monthly average (1) | Maximum for any 1 day (2) | Maximum for monthly average (2) | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | |||
Copper (T) | 0.0428 | 0.0236 | 0.0428 | 0.0236 |
Lead (T) | 0.0783 | 0.0384 | 0.117 | 0.0576 |
Zinc (T) | 0.145 | 0.0546 | 0.217 | 0.0827 |
TTO(3) | 0.0797 | 0.026 | 0.0797 | 0.026 |
Oil and grease(4) | 4.43 | 1.48 | 4.43 | 1.48 |
(1) Applies to plants which cast primarily ductile iron, primarily malleable iron where metal poured is greater than 3,557 tons per year, or primarily gray iron where metal poured is greater than 1,784 tons per year.
(2) Applies to plants which cast primarily steel, primarily malleable iron where metal poured is equal to or less than 3,557 tons per year, or primarily gray iron where metal poured is equal to or less than 1,784 tons per year.
(3) TTO is comprised of the following toxic organic pollutants:
chloroform (trichloromethane)
2,4-dimethylphenol
(4) Use as alternative to monitoring for TTO.
Table 69
FERROUS CASTING SUBCATEGORY SLAG QUENCH OPERATIONS
PSES | ||||
Maximum for any 1 day (1) | Maximum for monthly average (1) | Maximum for any 1 day (2) | Maximum for monthly average (2) | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | |||
Copper (T) | 0.0527 | 0.0291 | 0.0527 | 0.0291 |
Lead (T) | 0.0964 | 0.0473 | 0.144 | 0.0709 |
Zinc (T) | 0.178 | 0.0673 | 0.267 | 0.102 |
TTO(3) | 0.0257 | 0.00838 | 0.0257 | 0.00838 |
Oil and grease(4) | 5.46 | 1.82 | 5.46 | 1.82 |
(1) Applies to plants which cast primarily ductile iron, primarily malleable iron where metal poured is greater than 3,557 tons per year, or primarily gray iron where metal poured is greater than 1,784 tons per year.
(2) Applies to plants which cast primarily steel, primarily malleable iron where metal poured is equal to or less than 3,557 tons per year, or primarily gray iron where metal poured is equal to or less than 1,784 tons per year.
(3) TTO is comprised of the following toxic organic pollutants:
2,4-dimethylphenol
dimethyl phthalate
(4) Use as alternative to monitoring for TTO.
Table 70
FERROUS CASTING SUBCATEGORY WET SAND RECLAMATION OPERATIONS
PSES | ||||
Maximum for any 1 day (1) | Maximum for monthly average (1) | Maximum for any 1 day (2) | Maximum for monthly average (2) | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of sand reclaimed | |||
Copper (T) | 0.217 | 0.12 | 0.217 | 0.12 |
Lead (T) | 0.396 | 0.194 | 0.59 | 0.291 |
Zinc (T) | 0.732 | 0.276 | 1.1 | 0.418 |
Total phenols | 0.642 | 0.224 | 0.642 | 0.224 |
TTO(3) | 1.18 | 0.386 | 1.18 | 0.386 |
Oil and grease(4) | 22.4 | 7.47 | 22.4 | 7.47 |
(1) Applies to plants which cast primarily ductile iron, primarily malleable iron where metal poured is greater than 3,557 tons per year, or primarily gray iron where metal poured is greater than 1,784 tons per year.
(2) Applies to plants which cast primarily steel, primarily malleable iron where metal poured is equal to or less than 3,557 tons per year, or primarily gray iron where metal poured is equal to or less than 1,784 tons per year.
(3) TTO is comprised of the following toxic organic pollutants:
acenaphthene
2,4-dimethylphenol
fluoranthene
methylene chloride (dichloromethane)
naphtalene
phenol
bis (2-ethylhexyl) phthalate
di-n-butyl phthalate
diethyl phthalate
dimethyl phthalate
benzo(a)anthracene (1,2-benzanthracene)
acenaphthylene
pyrene
(4) Use as alternative to monitoring for TTO.
Wis. Admin. Code Department of Natural Resources NR 256.35