Pretreatment Standards for the Electroplating Category
(40 CFR 413)
Facilities Discharging <10,000 gpd
Pollutant |
Daily Maximum, mg/l |
Max. 4 Day Avg, mg/l |
Cadmium |
1.2 |
0.7 |
Lead |
0.6 |
0.4 |
Cyanide (amenable) |
5.0 |
2.7 |
Total Toxic Organics |
4.57 |
-- |
Facilities Discharging >10,000 gpd
Chromium |
7.0 |
4.0 |
Copper |
4.5 |
Nickel |
4.1 |
2.6 |
Zinc |
4.2 |
2.6 |
Silver |
Cyanide (total) |
1.9 |
2.7 |
Total Toxic Organics |
2.13 |
-- |
Pollutant |
Daily Maximum, mg/l | Max. Monthly Avg, mg/l | Cadmium |
0.69 |
0.26 |
Chromium |
2.77 |
1.71 |
Copper |
3.38 |
2.07 |
Lead |
0.69 |
0.43 |
Nickel |
3.98 |
2.38 |
Zinc |
2.61 |
1.48 |
Silver |
0.43 |
0.24 |
Cyanide (total) |
1.2 |
0.65 |
Total Toxic Organics |
2.13 |
-- |
Note: Pretreatment standards for new sources (PSNS) are identical to PSES except for the cadmium limitations which are 0.11 mg/l and 0.07 mg/l for the daily maximum and monthly average.
Coil Coating Effluent Guidelines
Steel Basis Material Subcategory
Pretreatment Standards for Existing Sources (40 CFR 465.14)
Pollutant |
Maximum for any 1 day |
Maximum for monthly average |
mg/m2 (lb. per 1 million ft2) of area processed |
Chromium |
0.50 |
(0.10) |
0.20 |
(0.041) |
Cyanide |
0.34 |
(0.07) |
0.14 |
(0.029) |
Zinc |
1.56 |
(0.32) |
0.66 |
(0.14) |
Pollutant |
Maximum for any 1 day |
Maximum for monthly average |
mg/m2 (lb. per 1 million ft2) of area processed |
Chromium |
0.12 |
(0.024) |
0.047 |
(0.01) |
Cyanide |
0.063 |
(0.013) |
0.025 |
(0.005) |
Zinc |
0.33 |
(0.066) |
0.14 |
(0.027) |
Pollutant |
Chromium |
0.42 |
(0.085) |
0.17 |
(0.034) |
Cyanide |
0.29 |
(0.059) |
0.12 |
(0.024) |
Zinc |
1.32 |
(0.27) |
0.56 |
(0.12) |
0.18 |
(0.037) |
0.072 |
(0.015) |
0.095 |
(0.02) |
0.038 |
(0.008) |
0.49 |