NR 256.40(2)
(2) This subchapter does not apply to the casting of ingots, pigs or other cast shapes following primary metal smelting, which is regulated by the nonferrous metals manufacturing point source category under
40 CFR Part 421. This subchapter does not apply to the casting of zinc performed as an integral part of zinc forming and conducted on-site at a zinc forming plant, which is regulated by the nonferrous metals forming point source category under
40 CFR Part 471.
NR 256.40(3)
(3) Processing operations following the cooling of castings, except for grinding scrubber operations, may be regulated by nonferrous metals forming point source category under
40 CFR Part 471, electroplating point source category under
ch. NR 260, or metal finishing point source category under
ch. NR 261.
NR 256.40 History
History: Cr.
Register, June, 1989, No. 402, eff. 7-1-89,
NR 256.42
NR 256.42 Effluent limitations 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 to
125.32, any existing point source subject to this subchapter, including noncontinuous direct dischargers, shall achieve the following BPT effluent limitations:
-
See PDF for table 
NR 256.42 Note
(1) These concentrations shall be multiplied by the ratio of (5.35/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured
(3) Within the range of 7.0 to 10.0 at all times
-
See PDF for table NR 256.42 Note
(1) These concentrations shall be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured
(3) Within the range of 7.0 to 10.0 at all times
-
See PDF for table NR 256.42 Note
(1) These concentrations shall be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(2) kg/62.3 million Sm
3 (pounds per billion SCF) of air scrubbed
(3) Within the range of 7.0 to 10.0 at all times
-
See PDF for table NR 256.42 Note
(1) These concentrations shall be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured
(3) Within the range of 7.0 to 10.0 at all times
NR 256.42 History
History: Cr.
Register, June, 1989, No. 402, eff. 7-1-89.
NR 256.43
NR 256.43 Effluent limitations 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 to
125.32, any existing point source subject to this subchapter, including noncontinuous direct dischargers, shall achieve the following BAT effluent limitations:
-
See PDF for table NR 256.43 Note
(1) These concentrations shall be multiplied by the ratio of (5.34/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured
- See PDF for table NR 256.43 Note
(1) These concentrations shall be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured.
-
See PDF for table NR 256.43 Note
(1) These concentrations shall be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(2) kg/62.3 million Sm
3 (pounds per billion SCF) of air scrubbed.
-
See PDF for table NR 256.43 Note
(1) These concentrations shall be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured.
NR 256.43 History
History: Cr.
Register, June, 1989, No. 402, eff. 7-1-89.
NR 256.44
NR 256.44 New source performance standards. Any new source subject to this subchapter, including noncontinuous direct dischargers, shall achieve the following standards:
-
See PDF for table NR 256.44 Note
(1) These concentrations shall be multiplied by the ratio of (5.34/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured
(3) Within the range of 7.0 to 10.0 at all times
-
See PDF for table NR 256.44 Note
(1) These concentrations shall be multiplied by the ratio of (1.04/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured
(3) Within the range of 7.0 to 10.0 at all times
-
See PDF for table NR 256.44 Note
(1) These concentrations shall be multiplied by the ratio of (0.243/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 SCF of air scrubbed) for a specific plant.
(2) kg/62.3 million Sm
3 (pounds per billion SCF) of air scrubbed
(3) Within the range of 7.0 to 10.0 at all times
-
See PDF for table NR 256.44 Note
(1) These concentrations shall be multiplied by the ratio of (47.3/x) where x is the actual normalized process wastewater discharge flow (in gallons per 1,000 pounds of metal poured) for a specific plant.
(2) kg/1,000 kkg (pounds per million pounds) of metal poured
(3) Within the range of 7.0 to 10.0 at all times
NR 256.44 History
History: Cr.
Register, June, 1989, No. 402, eff. 7-1-89.
NR 256.45
NR 256.45 Pretreatment standards for existing sources. 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 for existing sources:
-
See PDF for table NR 256.45 Note
(2) TTO is comprised of the following toxic organic pollutants:
2,4,6-trichlorophenol
para-chloro meta-cresol
2,4-dichlorophenol
2,4-dimethylphenol
fluoranthene
methylene chloride (dichloromethane)
phenol
bis(2-ethylhexyl) phthalate
di-n-butyl phthalate
diethyl phthalate
tetrachloroethylene
(2) Use as alternative to monitoring for TTO.
-
See PDF for table NR 256.45 Note
(1) TTO is comprised of the following toxic organic pollutants:
acenaphthene
2,4,6-trichlorophenol
para-chloro meta-cresol
2-chlorophenol
2,4-dimethylphenol
methylene chloride (dichloromethane)
naphthalene
phenol
bis(2-ethylhexyl) phthalate
di-n-butyl phthalate
diethyl phthalate
tetrachloroethylene
toluene
trichloroethylene
NR 256.45 Note
(1) TTO is comprised of the following toxic organic pollutants:
2,4-dichlorophenol
2,4-dimethylphenol
fluoranthene
methylene chloride (dichloromethane)
naphthalene
phenol
bis(2-ethylhexyl) phthalate
di-n-butyl phthalate
tetrachloroethylene
toluene
trichloroethylene
NR 256.45 Note
(1) TTO is comprised of the toxic organic pollutants listed in Table 83.
(2) Use as alternative to monitoring for TTO
NR 256.45 History
History: Cr.
Register, June, 1989, No. 402, eff. 7-1-89.
NR 256.46
NR 256.46 Pretreatment standards for new sources. Except as provided in
s. NR 211.13, any new source subject to this subchapter which introduces pollutants into publicly owned treatment works shall comply with
ch. NR 211 and achieve the pretreatment standards contained in
s. NR 256.45.
NR 256.46 History
History: Cr.
Register, June, 1989, No. 402, eff. 7-1-89.
NR 256.46 Note
Note: The citations of the Wisconsin administrative code correspond to provisions of the code of federal regulations as cross-referenced in the following table:
-
See PDF for table
