Wis. Admin. Code Department of Natural Resources NR 262.12
Except as provided in 40 CFR 125.30 to 125.32 any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:
BAT effluent limitations
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average | ||
Metal preparation | Coating operation | Metal preparation | Coating operation | |
Metric units-mg/m2 of area processed or coated | ||||
Chromium .. | 16.82 | 0.53 | 6.81 | 0.22 |
Lead ....... | 6.01 | 0.19 | 5.21 | 0.16 |
Nickel ...... | 56.5 | 1.78 | 40.05 | 1.26 |
Zinc ....... | 53.3 | 1.68 | 22.43 | 0.71 |
Aluminum .. | 182.0 | 5.74 | 74.48 | 2.35 |
Iron ........ | 112.12 | 3.53 | 56.06 | 1.77 |
English units-pounds per 1 million ft2 of area processed or coated | ||||
Chromium .. | 3.45 | 0.11 | 1.4 | 0.05 |
Lead ....... | 1.23 | 0.04 | 1.07 | 0.03 |
Nickel ...... | 11.57 | 0.37 | 8.2 | 0.26 |
Zinc ....... | 10.91 | 0.35 | 4.6 | 0.15 |
Aluminum .. | 37.32 | 1.18 | 15.26 | 0.48 |
Iron ........ | 22.96 | 0.72 | 11.48 | 0.36 |
Wis. Admin. Code Department of Natural Resources NR 262.12