Current as of October 03, 2022 | Updated by FindLaw Staff
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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/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 Quench Operations.
|
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) |
0.0307 |
0.0168 |
|
Lead (T) |
0.0211 |
0.0104 |
|
Zinc (T) |
0.0303 |
0.0116 |
|
Oil and grease |
1.2 |
0.399 |
|
TSS |
0.598 |
0.479 |
|
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 average1 |
|
|---|---|---|---|
|
(mg/l)2 |
(mg/l)2 |
||
|
Copper (T) |
0.77 |
0.42 |
0.0068 |
|
Lead (T) |
0.53 |
0.26 |
0.006 |
|
Zinc (T) |
0.76 |
0.29 |
0.0072 |
|
Oil and grease |
30 |
10 |
0.199 |
|
TSS |
15 |
12 |
0.104 |
|
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 (4.8/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.
(b) Direct Chill Casting Operations.
|
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) |
0.928 |
0.506 |
|
Lead (T) |
0.639 |
0.314 |
|
Zinc (T) |
0.916 |
0.35 |
|
Oil and grease |
36.2 |
12.1 |
|
TSS |
18.1 |
14.5 |
|
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 average1 |
|
|---|---|---|---|
|
(mg/l)2 |
(mg/l)2 |
||
|
Copper (T) |
0.77 |
0.42 |
0.205 |
|
Lead (T) |
0.53 |
0.26 |
0.181 |
|
Zinc (T) |
0.76 |
0.29 |
0.217 |
|
Oil and grease |
30 |
10 |
6.03 |
|
TSS |
15 |
12 |
3.13 |
|
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 (145/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.
|
NSPS |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed |
||
|
Copper (T) |
0.553 |
0.301 |
|
Lead (T) |
0.38 |
0.187 |
|
Zinc (T) |
0.545 |
0.208 |
|
Total phenols |
0.617 |
0.215 |
|
Oil and grease |
21.5 |
7.18 |
|
TSS |
10.8 |
8.61 |
|
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 average1 |
|
|---|---|---|---|
|
(mg/l)2 |
(mg/l)2 |
||
|
Copper (T) |
0.77 |
0.42 |
0.122 |
|
Lead (T) |
0.53 |
0.26 |
0.108 |
|
Zinc (T) |
0.76 |
0.29 |
0.129 |
|
Total phenols |
0.86 |
0.3 |
0.144 |
|
Oil and grease |
30 |
10 |
3.59 |
|
TSS |
15 |
12 |
1.87 |
|
pH |
(3) |
(3) |
(3) |
1 kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.086/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.
|
NSPS |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
kg/1,000 kkg (pounds per millions pounds) of metal poured |
||
|
Copper (T) |
8.48 |
4.63 |
|
Lead (T) |
5.84 |
2.86 |
|
Zinc (T) |
8.37 |
3.19 |
|
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 average1 |
|
|---|---|---|---|
|
(mg/l)2 |
(mg/l)2 |
||
|
Copper (T) |
0.77 |
0.42 |
1.87 |
|
Lead (T) |
0.53 |
0.26 |
1.65 |
|
Zinc (T) |
0.76 |
0.29 |
1.98 |
|
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.
(f) Melting Furnace Scrubber Operations.
|
NSPS |
||
|---|---|---|
|
Pollutant or pollutant property |
Maximum for any 1 day |
Maximum for monthly average |
|
kg/62.3 million Sm3 (pounds per billion SCF) of air scrubbed |
||
|
Copper (T) |
1.81 |
0.988 |
|
Lead (T) |
1.25 |
0.612 |
|
Zinc (T) |
1.79 |
0.673 |
|
Total phenols |
2.02 |
0.706 |
|
Oil and grease |
70.6 |
23.5 |
|
TSS |
35.3 |
28.2 |
|
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 average1 |
|
|---|---|---|---|
|
(mg/l)2 |
(mg/l)2 |
||
|
Copper (T) |
0.77 |
0.42 |
0.4 |
|
Lead (T) |
0.53 |
0.26 |
0.353 |
|
Zinc (T) |
0.76 |
0.29 |
0.424 |
|
Total phenols |
0.86 |
0.3 |
0.471 |
|
Oil and grease |
30 |
10 |
11.8 |
|
TSS |
15 |
12 |
6.12 |
|
pH |
(3) |
(3) |
(3) |
1 kg/62.3 Sm3 (pounds per billion SCF) of air scrubbed.
2 These concentrations must be multiplied by the ratio of (0.282/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.
|
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) |
0.392 |
0.214 |
|
Lead (T) |
0.27 |
0.132 |
|
Zinc (T) |
0.387 |
0.148 |
|
Oil and grease |
15.3 |
5.09 |
|
TSS |
7.63 |
6.11 |
|
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 average1 |
|
|---|---|---|---|
|
(mg/1)2 |
(mg/1)2 |
||
|
Copper (T) |
0.77 |
0.42 |
0.0865 |
|
Lead (T) |
0.53 |
0.26 |
0.0763 |
|
Zinc (T) |
0.76 |
0.29 |
0.0916 |
|
Oil and grease |
30 |
10 |
2.54 |
|
TSS |
15 |
12 |
1.32 |
|
pH |
(3) |
(3) |
(3) |
1 kg/1,000 kkg (pounds per million pound) of metal poured.
2 These concentrations must be multiplied by the ratio of (61/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.
Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.464.24 New source performance standards - last updated October 03, 2022 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-464-24/
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