40 CFR § 424.12
Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
June 9, 2020
Except as provided in §§125.30 through 125.32, and subject to the provisions of paragraph (a) of this section, any existing point source subject to this subpart 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):
Open Table
| Effluent characteristic | Effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed— | |
| Metric units (kg/Mwh) | ||
| TSS | 0.319 | 0.160 |
| Chromium total | .006 | .0032 |
| Chromium VI | .0006 | .0003 |
| Manganese total | .064 | .032 |
| pH | (1) | (1) |
| English units (lb/Mwh) | ||
| TSS | .703 | .352 |
| Chromium total | .014 | .007 |
| Chromium VI | .0014 | .0007 |
| Manganese total | .141 | .070 |
| pH | (1) | (1) |
1Within the range 6.0 to 9.0.
[39 FR 6809, Feb. 22, 1974, as amended at 60 FR 33957, June 29, 1995]
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