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§ 421.105 Pretreatment standards for existing sources.
Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in primary tungsten process wastewater introduced into a POTW shall not exceed the following values:
(a) Subpart J—Tungstic Acid Rinse.
PSES
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of tungstic acid (as W) produced | ||
| Lead | 11.490 | 5.333 |
| Zinc | 41.850 | 17.230 |
| Ammonia (as N) | 5,469.000 | 2,404.000 |
(b) Subpart J—Acid Leach Wet Air Pollution Control.
PSES
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of tungstic acid (as W) produced | ||
| Lead | 1.003 | 0.466 |
| Zinc | 3.653 | 1.504 |
| Ammonia (as N) | 477.400 | 209.900 |
(c) Subpart J—Alkali Leach Wash.
PSES
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of tungstate (as W) produced | ||
| Lead | 0.000 | 0.000 |
| Zinc | 0.000 | 0.000 |
| Ammonia (as N) | 0.000 | 0.000 |