(a) The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section, which may be discharged by a point source subject to the provisions of this subpart after application of the best available technology economically achievable:
| Effluent characteristic | Effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed— | |
| Metric units (kg/kkg of raw material) | ||
| Oil and grease | 2.0 | 0.73 |
| BOD5 | 3.72 | 2.20 |
| TSS | 6.96 | 2.90 |
| pH | (1) | (1) |
| English units (lb/1,000 lb of raw material) | ||
| Oil and grease | 2.0 | 0.73 |
| BOD5 | 3.72 | 2.20 |
| TSS | 6.96 | 2.90 |
| pH | (1) | (1) |
1Within the range 6.0 to 9.0.
(b) The following limitations establish the quantity or quality of pollutants or pollutant properties, controlled by this section and attributable to plants employing the chromic acid form-cleaning operation, by a point source subject to the provisions of this subpart after application of the best available technology economically achievable, in addition to the limitations set forth by §428.103(a):
| Effluent characteristic | Effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed— | |
| Metric units (kg/kkg of raw material) | ||
| Chromium | 0.0086 | 0.0036 |
| English units (lb/1,000 lb of raw material) | ||
| Chromium | 0.0086 | 0.0036 |
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