§ 471.63 New source performance standards (NSPS).
Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The discharge of wastewater pollutants from titanium process wastewater shall not exceed the values set forth below:
(a) Rolling spent neat oils—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.
(b) Rolling contact cooling water.
Subpart F—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of titanium rolled with contact cooling water | ||
| Cyanide | 0.142 | 0.059 |
| Lead | 0.205 | 0.098 |
| Zinc | 0.713 | 0.298 |
| Ammonia | 65.1 | 28.6 |
| Fluoride | 29.1 | 12.9 |
| Oil and grease | 9.76 | 5.86 |
| TSS | 20.0 | 9.52 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(c) Drawing spent neat oils—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.
(d) Extrusion spent neat oils—subpart F—NSPS. There shall be no discharge of process wastewater pollutants.
(e) Extrusion spent emulsions.
Subpart F—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of titanium extruded | ||
| Cyanide | 0.021 | 0.009 |
| Lead | 0.030 | 0.015 |
| Zinc | 0.105 | 0.044 |
| Ammonia | 9.59 | 4.22 |
| Fluoride | 4.28 | 1.9 |
| Oil and grease | 1.44 | 0.863 |
| TSS | 2.95 | 1.40 |
| pH | ( 1) | ( 1) |
1 Within the range of 7.5 to 10.0 at all times.
(f) Extrusion press hydraulic fluid leakage.
Subpart F—NSPS
| Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
|---|---|---|
| mg/off-kg (pounds per million off-pounds) of titanium extruded | ||
| Cyanide | 0.052 | 0.022 |
| Lead | 0.075 | 0.036 |
| Zinc | 0.260 | 0.109 |
| Ammonia | 23.7 | 10.5 |
| Fluoride | 10.6 | 4.70 |
| Oil and grease | 3.56 | 2.14 |
| TSS | 7.30 | 3.47 |
| pH | ( 1) | ( 1) |