40 CFR § 437.14
New source performance standards (NSPS)
June 9, 2020
(a) Except as provided in §437.10(b), any new source subject to this subpart must achieve the following performance standards:
Performance Standards
Open Table
| Regulated parameter |
Maximum daily1 | Maximum monthly avg.1 |
|---|---|---|
| Conventional Parameters | ||
| O&G | 205 | 50.2 |
| pH | (2) | (2) |
| TSS | 29.6 | 11.3 |
| Metal Parameters | ||
| Antimony | 0.111 | 0.0312 |
| Arsenic | 0.0993 | 0.0199 |
| Cadmium | 0.782 | 0.163 |
| Chromium | 0.167 | 0.0522 |
| Cobalt | 0.182 | 0.0703 |
| Copper | 0.659 | 0.216 |
| Lead | 1.32 | 0.283 |
| Mercury | 0.000641 | 0.000246 |
| Nickel | 0.794 | 0.309 |
| Selenium | 0.176 | 0.0698 |
| Silver | 0.0318 | 0.0122 |
| Tin | 0.0955 | 0.0367 |
| Titanium | 0.0159 | 0.00612 |
| Vanadium | 0.0628 | 0.0518 |
| Zinc | 0.657 | 0.252 |
1mg/L (ppm).
2Within the range 6 to 9.
(b) In-plant standards for cyanide are the same as the limitations specified in §437.11(b).
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