§ 419.46 Standards of performance for new sources (NSPS).
Current through Aug 22, 2025 · Read all of Part 419
(a) Any new source subject to this subpart must achieve the following new source performance standards (NSPS):
| Pollutant or pollutant property | NSPS effluent limitations | |
|---|---|---|
| Maximum for any 1 day | Average of daily values for 30 consecutive days shall not exceed | |
| Metric units (kilograms per 1,000 m 3 of feedstock) | ||
| BOD5 | 34.6 | 18.4 |
| TSS | 23.4 | 14.9 |
| COD 1 | 245.0 | 126.0 |
| Oil and grease | 10.5 | 5.6 |
| Phenolic compounds | 0.25 | 0.12 |
| Ammonia as N | 23.4 | 10.7 |
| Sulfide | 0.220 | 0.10 |
| Total chromium | 0.52 | 0.31 |
| Hexavalent chromium | 0.046 | 0.021 |
| pH | ( 2) | ( 2) |
| English units (pounds per 1,000 bbl of feedstock) | ||
| BOD 1 | 12.2 | 6.5 |
| TSS | 8.3 | 5.3 |
| COD 1 | 87.0 | 45.0 |
| Oil and grease | 3.8 | 2.0 |
| Phenolic compounds | 0.088 | 0.043 |
| Ammonia as N | 8.3 | 3.8 |
| Sulfide | 0.078 | 0.035 |
| Total chromium | 0.180 | 0.105 |
| Hexavalent chromium | 0.022 | 0.0072 |
| pH | ( 2) | ( 2) |
1 See footnote following table in § 419.13(d).
2 Within the range 6.0 to 9.0.
(b) The limits set forth in paragraph (a) of this section are to be multiplied by the following factors to calculate the maximum for any one day and maximum average of daily values for thirty consecutive days.
(1) Size factor.
| 1,000 bbl of feedstock per stream day | Size factor |
|---|---|
| Less than 49.9 | 0.71 |
| 50.0 to 74.9 | 0.74 |
| 75.0 to 99.9 | 0.81 |
| 100.0 to 124.9 | 0.88 |
| 125.0 to 149.9 | 0.97 |
| 150.0 to 174.9 | 1.05 |
| 175.0 to 199.9 | 1.14 |
| 200.0 or greater | 1.19 |
(2) Process factor.
| Process configuration | Process factor |
|---|---|
| Less than 6.49 | 0.81 |
| 6.5 to 7.49 | 0.88 |
| 7.5 to 7.99 | 1.00 |
| 8.0 to 8.49 | 1.09 |
| 8.5 to 8.99 | 1.19 |
| 9.0 to 9.49 | 1.29 |
| 9.5 to 9.99 | 1.41 |
| 10.0 to 10.49 | 1.53 |
| 10.5 to 10.99 | 1.67 |
| 11.0 to 11.49 | 1.82 |
| 11.5 to 11.99 | 1.98 |
| 12.0 to 12.49 | 2.15 |
| 12.5 to 12.99 | 2.34 |
| 13.0 or greater | 2.44 |
(3) See the comprehensive example in subpart D, § 419.42(b)(3).
(c) The provisions of § 419.16(c) apply to discharges of process wastewater pollutants attributable to ballast water by a point source subject to the provision of this subpart.
(d) The quantity and quality of pollutants or pollutant properties controlled by this paragraph, attributable to once-through cooling water, are excluded from the discharge allowed by paragraph (b) of this section. Once-through cooling water may be discharged with a total organic carbon concentration not to exceed 5 mg/1.
(e) Effluent Limitations for Runoff. [Reserved]
[47 FR 46446, Oct. 18, 1982, as amended at 50 FR 28523, 28528, July 12, 1985; 50 FR 32414, Aug. 12, 1985]