NSPS effluent limitations
NSPS effluent limitations | ||
Pollutant or pollutant property | Maximum for 1 day | any Average of daily values for 30 consecutive days |
Metric units (kilograms per 1,000 m3 of feedstock) | ||
BOD5 | 21.8 | 11.6 |
TSS | 14.9 | 9.5 |
COD1 | 133.0 | 69.0 |
Oil and grease | 6.6 | 3.5 |
Phenolic compounds | 0.158 | 0.077 |
Ammonia as N | 23.4 | 10.7 |
Sulfide | 0.14 | 0.063 |
Total chromium | 0.32 | 0.19 |
Hexavalent chromium | 0.025 | 0.012 |
pH | (2) | (2) |
English units (pounds per 1,000 bbl of feedstock) | ||
BOD5 | 7.7 | 4.1 |
TSS | 5.2 | 3.3 |
COD1 | 47.0 | 24.0 |
Oil and grease | 2.4 | 1.3 |
Phenolic compounds | 0.056 | 0.027 |
Ammonia as N | 8.3 | 3.8 |
Sulfide | 0.05 | 0.022 |
Total chromium | 0.116 | 0.068 |
Hexavalent chromium | 0.0096 | 0.0044 |
pH | (2) | (2) |
1 See footnote following table in s. NR 279.13(4).
2 Within the range of 6.0 to 9.0.
1000 bbl. of feedstock per stream day | Size factor |
Less than 24.9 | 0.73 |
25.0 to 49.9 | 0.76 |
50.0 to 74.9 | 0.83 |
75.0 to 99.9 | 0.91 |
100.0 to 124.9 | 0.99 |
125.0 to 149.9 | 1.08 |
150.0 or greater | 1.13 |
Process configuration | Process factor |
Less than 4.49 | 0.73 |
4.5 to 5.49 | 0.8 |
5.5 to 5.99 | 0.91 |
6.0 to 6.49 | 0.99 |
6.5 to 6.99 | 1.08 |
7.0 to 7.49 | 1.17 |
7.5 to 7.99 | 1.28 |
8.0 to 8.49 | 1.39 |
8.5 to 8.99 | 1.51 |
9.0 to 9.49 | 1.65 |
9.5 or greater | 1.72 |
Note: See the comprehensive example in s. NR 279.42(2) (c).
Wis. Admin. Code Department of Natural Resources NR 279.36