40 CFR § 421.144
Standards of performance for new sources
June 9, 2020
Any new source subject to this subpart shall achieve the following new source performance standards:
(a) Sodium Antimonate Autoclave Wastewater.
NSPS for the Primary Antimony Subcategory
Open Table
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of antimony contained in sodium antimonate product | ||
| Antimony | 30.150 | 13.440 |
| Arsenic | 21.720 | 9.687 |
| Mercury | 2.344 | 0.937 |
| Total suspended solids | 234.400 | 187.500 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(b) Fouled Anolyte.
NSPS for the Primary Antimony Subcategory
Open Table
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of antimony metal produced by electrowinning | ||
| Antimony | 30.150 | 13.440 |
| Arsenic | 21.720 | 9.687 |
| Mercury | 2.344 | 0.937 |
| Total suspended solids | 234.400 | 187.500 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
(c) Cathode Antimony Wash Water.
NSPS for the Primary Antimony Subcategory
Open Table
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/kg (pounds per million pounds) of antimony metal produced by electrowinning | ||
| Antimony | 60.310 | 26.870 |
| Arsenic | 43.430 | 19.370 |
| Mercury | 4.687 | 1.875 |
| Total suspended solids | 468.700 | 375.000 |
| pH | (1) | (1) |
1Within the range of 7.5 to 10.0 at all times.
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