Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 252 - Leather tanning and finishing
Section NR 252.61 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)
Universal Citation: WI Admin Code ยง NR 252.61
Current through August 26, 2024
Except as provided in 40 CFR 125.30- 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 practicable control technology currently available (BPT):
|
Pollutant or pollutant property |
BPT limitations |
|
|
Kg/kkg (or pounds per 1000 lb) of raw material |
||
|
Maximum for any 1 day |
Maximum for monthly average |
|
|
BOD5 |
3.2 |
1.5 |
|
TSS |
4.7 |
2.1 |
|
Oil and grease |
1.4 |
0.61 |
|
Total chromium |
0.08 |
0.03 |
|
pH |
(1) |
(1) |
1Within the range 6.0 to 9.0.
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