Wisconsin Administrative Code › Department of Natural Resources › NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System › Chapter NR 256 - Metal molding and casting › Subchapter IV - Zinc Casting Subcategory › Section NR 256.45 - Pretreatment standards for existing sources

Current through June 24, 2024
Except as provided in ss.
					 NR
					 211.13 and anyexisting 211.14 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:
Table 83
ZINC CASTING SUBCATEGORY CASTING QUENCH OPERATIONS
PSES
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
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(1)
0.093
0.0304
Oil and
								  grease(2)
1.34
0.446
(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.
Table 84
ZINC CASTING SUBCATEGORY DIE CASTING OPERATIONS
PSES
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
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(1)
0.0196
0.0064
Oil and
								  grease(2)
0.259
0.0864
(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
(2)Use as alternative to monitoring for TTO.
Table 85
ZINC CASTING SUBCATEGORY MELTING FURNACE SCRUBBER
					 OPERATIONS
PSES
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
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
TTO(1)
3.95
1.29
Oil and
								  grease(2)
60.8
20.3
(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
(2)Use as alternative to monitoring for TTO
Table 86
ZINC CASTING SUBCATEGORY MOLD COOLING OPERATIONS
PSES
Maximum for any 1 day
Maximum for monthly average
Pollutant or pollutant property
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(1)
0.821
0.268
Oil and
								  grease(2)
11.8
3.94.
(1) TTO is comprised of the toxic organic pollutants listed
					 in Table 83.
(2) Use as alternative to monitoring for
					 TTO