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 m3 of feedstock) | ||
BOD5 | 34.6 | 18.4 |
TSS | 23.4 | 14.9 |
COD1 | 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) | ||
BOD1 | 12.2 | 6.5 |
TSS | 8.3 | 5.3 |
COD1 | 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.
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 |
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 |
40 C.F.R. §419.46