Wis. Admin. Code Department of Natural Resources NR 256.24
Any new source subject to this subchapter, including noncontinuous direct dischargers, shall achieve the following standards. Grinding scrubber operations may not discharge process wastewater pollutants to waters of the state.
TABLE 27
COPPER CASTING SUBCATEGORY
CASTING QUENCH OPERATIONS
NSPS | |||||
Noncontinuous Direct Dischargers | |||||
Maximum for any 1 day | Maximum for monthly average | Maximum for 1 day | any Maximum for monthly average | Annual average | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | mg/l(1) | mg/l(1) | (2) | |
Copper (T) | 0.0307 | 0.0168 | 0.77 | 0.42 | 0.0068 |
Lead (T) | 0.0211 | 0.0104 | 0.53 | 0.26 | 0.006 |
Zinc (T) | 0.0303 | 0.0116 | 0.76 | 0.29 | 0.0072 |
Oil & grease | 1.2 | 0.399 | 30 | 10 | 0.199 |
TSS | 0.598 | 0.479 | 15 | 12 | 0.104 |
pH | (3) | (3) | (3) | (3) | (3) |
(1) These concentrations shall be multiplied by the ratio of (4.8/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 to all times.
TABLE 28
COPPER CASTING SUBCATEGORY
DIRECT CHILL CASTING OPERATIONS
NSPS | |||||
Noncontinuous Direct Dischargers | |||||
Maximum for any 1 day | Maximum for monthly average | Maximum for any 1 day | Maximum for monthly average | Annual average | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | mg/l(1) | mg/l(1) | (2) | |
Copper (T) | 0.928 | 0.506 | 0.77 | 0.42 | 0.205 |
Lead (T) | 0.639 | 0.314 | 0.53 | 0.26 | 0.181 |
Zinc (T) | 0.916 | 0.35 | 0.76 | 0.29 | 0.217 |
Oil & grease | 36.2 | 12.1 | 30 | 10 | 6.03 |
TSS | 18.1 | 14.5 | 15 | 12 | 3.13 |
pH | (3) | (3) | (3) | (3) | (3) |
(1) These concentrations shall be multiplied by the ratio of (145/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 to all times.
TABLE 29
COPPER CASTING SUBCATEGORY
DUST COLLECTION SCRUBBER OPERATIONS
NSPS | |||||
Noncontinuous Direct Dischargers | |||||
Maximum for any 1 day | Maximum for monthly average | Maximum for 1 day | any Maximum for monthly average | Annual average | |
Pollutant or pollutant property | kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed | mg/l(1) | mg/l(1) | (2) | |
Copper (T) | 0.553 | 0.301 | 0.77 | 0.42 | 0.122 |
Lead (T) | 0.38 | 0.187 | 0.53 | 0.26 | 0.108 |
Zinc (T) | 0.545 | 0.208 | 0.76 | 0.29 | 0.129 |
Total phenols | 0.617 | 0.215 | 0.86 | 0.3 | 0.144 |
Oil & grease | 21.5 | 7.18 | 30 | 10 | 3.59 |
TSS | 10.8 | 8.61 | 15 | 12 | 1.87 |
pH | (3) | (3) | (3) | (3) | (3) |
(1) These concentrations shall be multiplied by the ratio of (0.086/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 Sm3 (pounds per billion SCF) of air scrubbed.
(3) Within the range of 7.0 to 10.0 to all times.
TABLE 30
COPPER CASTING SUBCATEGORY
INVESTMENT CASTING
NSPS | |||||
Noncontinuous Direct Dischargers | |||||
Maximum for any 1 day | Maximum for monthly average | Maximum for any 1 day | Maximum for monthly average | Annual average | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | mg/l(1) | mg/l(1) | (2) | |
Copper (T) | 8.48 | 4.63 | 0.77 | 0.42 | 1.87 |
Lead (T) | 5.84 | 2.86 | 0.53 | 0.26 | 1.65 |
Zinc (T) | 8.37 | 3.19 | 0.76 | 0.29 | 1.98 |
Oil & grease | 330 | 110 | 30 | 10 | 55.1 |
TSS | 165 | 132 | 15 | 12 | 28.6 |
pH | (3) | (3) | (3) | (3) | (3) |
(1) These concentrations shall be multiplied by the ratio of (1,320/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 to all times.
TABLE 31
COPPER CASTING SUBCATEGORY
MELTING FURNACE SCRUBBER OPERATIONS
NSPS | |||||
Noncontinuous Direct Dischargers | |||||
Maximum for any 1 day | Maximum for monthly average | Maximum for any 1 day | Maximum for monthly average | Annual average | |
Pollutant or pollutant property | kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed | mg/l(1) | mg/l(1) | (2) | |
Copper (T) | 1.81 | 0.988 | 0.77 | 0.42 | 0.4 |
Lead (T) | 1.25 | 0.612 | 0.53 | 0.26 | 0.353 |
Zinc (T) | 1.79 | 0.673 | 0.76 | 0.29 | 0.424 |
Total phenols | 2.02 | 0.706 | 0.86 | 0.3 | 0.471 |
Oil & grease | 70.6 | 23.5 | 30 | 10 | 11.8 |
TSS | 35.3 | 28.2 | 15 | 12 | 6.12 |
pH | (3) | (3) | (3) | (3) | (3) |
(1) These concentrations shall be multiplied by the ratio of (0.282/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 Sm3 (pounds per billion SCF) of air scrubbed.
(3) Within the range of 7.0 to 10.0 to all times.
TABLE 32
COPPER CASTING SUBCATEGORY
MOLD COOLING OPERATIONS
NSPS | |||||
Noncontinuous Direct Dischargers | |||||
Maximum for any | Maximum for | Maximum for any | Maximum for | ||
1 day | monthly average | 1 day | monthly average | Annual average | |
Pollutant or pollutant property | kg/1,000 kkg (pounds per million pounds) of metal poured | mg/l(1) | mg/l(1) | (2) | |
Copper (T) | 0.392 | 0.214 | 0.77 | 0.42 | 0.0865 |
Lead (T) | 0.27 | 0.132 | 0.53 | 0.26 | 0.0763 |
Zinc (T) | 0.387 | 0.148 | 0.76 | 0.29 | 0.0916 |
Oil & grease | 15.3 | 5.09 | 30 | 10 | 2.54 |
TSS | 7.63 | 6.11 | 15 | 12 | 1.32 |
pH | (3) | (3) | (3) | (3) | (3) |
(1) These concentrations shall be multiplied by the ratio of (61/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 to all times.
Wis. Admin. Code Department of Natural Resources NR 256.24