NSPS effluent limitations | ||
Pollutant or pollutant property | Maximum for any 1 day | Average of daily values for 30 consecutive days |
Metric units (kilograms per cubic meter of flow) | ||
BOD5 | 11.8 | 6.3 |
TSS | 8.3 | 4.9 |
COD1 | 61.0 | 32.0 |
Oil and grease | 3.6 | 1.9 |
Phenolic compounds | 0.088 | 0.043 |
Ammonia as N | 2.8 | 1.3 |
Sulfide | 0.078 | 0.035 |
Total chromium | 0.18 | 0.105 |
Hexavalent chromium | 0.015 | 0.0068 |
pH | (2) | (2) |
English units (pounds per 1,000 gallons of flow) | ||
BOD5 | 4.2 | 2.2 |
TSS | 3.0 | 1.9 |
COD1 | 21.7 | 11.2 |
Oil and grease | 1.3 | 0.7 |
Phenolic compounds | 0.031 | 0.016 |
Ammonia as N | 1.0 | 0.45 |
Sulfide | 0.027 | 0.012 |
Total chromium | 0.064 | 0.037 |
Hexavalent chromium | 0.0052 | 0.0025 |
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 | 1.02 |
25.0 to 49.9 | 1.06 |
50.0 to 74.9 | 1.16 |
75.0 to 99.9 | 1.26 |
100.0 to 124.9 | 1.38 |
125.0 to 149.9 | 1.5 |
150.0 or greater | 1.57 |
Process configuration | Process factor |
Less than 2.49 | 0.62 |
2.5 to 3.49 | 0.67 |
3.5 to 4.49 | 0.8 |
4.5 to 4.49 | 0.95 |
5.5 to 5.99 | 1.07 |
6.0 to 6.49 | 1.17 |
6.5 to 6.99 | 1.27 |
7.0 to 7.49 | 1.39 |
7.5 to 7.99 | 1.51 |
8.0 to 8.49 | 1.64 |
8.5 to 8.99 | 1.79 |
9.0 to 9.49 | 1.95 |
9.5 to 9.99 | 2.12 |
10.0 to 10.49 | 2.31 |
10.5 to 10.99 | 2.51 |
11.0 to 11.49 | 2.73 |
11.5 to 11.99 | 2.98 |
12.0 to 12.49 | 3.24 |
12.5 to 12.99 | 3.53 |
13.0 to 13.49 | 3.84 |
13.5 to 13.99 | 4.18 |
14.0 or greater | 4.36 |
Note: See the comprehensive example in s. NR 279.42(2) (c).
NSPS Effluent Limitations for Ballast Water | ||
Pollutant or pollutant property | Maximum for any 1 day | Average of daily values for 30 consecutive days |
Metric units (kilograms per cubic meter of flow) | ||
BOD5 | 0.048 | 0.026 |
TSS | 0.033 | 0.021 |
COD1 | 0.47 | 0.24 |
Oil and grease | 0.015 | 0.08 |
pH | (2) | (2) |
English units (pounds per 1,000 gal of flow) | ||
BOD5 | 0.40 | 0.21 |
TSS | 0.27 | 0.17 |
COD1 | 3.9 | 2.0 |
Oil and grease | 0.126 | 0.067 |
pH | (2) | (2) |
1 See footnote following table in s. NR 279.13(4).
2 Within the range of 6.0 to 9.0.
Wis. Admin. Code Department of Natural Resources NR 279.16