['Water Programs']
['Toxic Water Pollutants', 'Total Maximum Daily Loads', 'Industrial Wastewater', 'Point Sources']
10/18/2024
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(a) Except as provided in §425.04 and 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces process wastewater pollutants into a publicly owned treatment works must comply with 40 CFR part 403, and achieve the following pretreatment standards:
| Pollutant or pollutant property | PSES | |
|---|---|---|
| Maximum for any 1 day | Maximum for monthly average | |
| 1 Not less than 7.0. | ||
| Milligrams per liter (mg/l) | ||
| Sulfide | 24 | |
| Total chromium | 12 | 8 |
| pH | (1) | (1) |
(b) Any existing source subject to this subpart which processes less than 275 hides/day shall comply with §425.15(a), except that the total chromium limitations contained in §425.15(a) do not apply.
[47 FR 52870, Nov. 23, 1982; 48 FR 30116, June 30, 1983, as amended at 53 FR 9182, Mar. 21, 1988; 61 FR 35685, July 8, 1996]
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['Water Programs']
['Toxic Water Pollutants', 'Total Maximum Daily Loads', 'Industrial Wastewater', 'Point Sources']
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