Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection - Wisconsin Pollutant Discharge Elimination System
Chapter NR 279 - Petroleum refining
Section NR 279.54 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT)
Current through August 26, 2024
(1) Any existing point source subject to this subcategory shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology (BCT):
BCT Effluent Limitations |
||
Pollutant or pollutant property |
Maximum for any 1 day |
Average of daily values for 30 consecutive days |
Metric units (kilograms per 1,000 m3 of feedstock) |
||
BOD5 |
54.4 |
28.9 |
TSS |
37.3 |
23.7 |
Oil and grease |
17.1 |
9.1 |
pH |
(1) |
(1) |
English units (pounds per 1,000 bbl of feedstock) |
||
BOD5 |
19.2 |
10.2 |
TSS |
13.2 |
8.4 |
Oil and grease |
6.0 |
3.2 |
pH |
(1) |
(1) |
1 Within the range of 6.0 to 9.0.
(2) The limits set forth in sub. (1) shall be multiplied by the following factors to calculate the maximum for any one day and maximum average of daily values for 30 consecutive days.
1000 bbl. of feedstock per stream day |
Size factor |
Less than 124.9 |
0.73 |
125.0 to 149.9 |
0.76 |
150.0 to 174.9 |
0.83 |
175.0 to 199.9 |
0.91 |
200.0 to 224.9 |
0.99 |
225.0 or greater |
1.04 |
Process configuration |
Process factor |
Less than 6.49 |
0.75 |
6.5 to 7.49 |
0.82 |
7.5 to 7.99 |
0.92 |
8.0 to 8.49 |
1.0 |
8.5 to 8.99 |
1.1 |
9.0 to 9.49 |
1.2 |
9.5 to 9.99 |
1.3 |
10.0 to 10.49 |
1.42 |
10.5 to 10.99 |
1.54 |
11.0 to 11.49 |
1.68 |
11.5 to 11.99 |
1.83 |
12.0 to 12.49 |
1.99 |
12.5 to 12.99 |
2.17 |
13.0 or greater |
2.26 |
Note: See the comprehensive example in s. NR 279.42(2) (c).
(3) The provisions of s. NR 279.14(3) apply to discharges of process wastewater pollutants attributable to ballast water by a point source subject to the provisions of this subcategory.
(4) The quantity and quality of pollutants or pollutant properties controlled by this subsection, attributable to once-through cooling water, are excluded from the discharge allowed by sub. (2).
(5) The following effluent limitations constitute the quantity and quality of pollutants or pollutant properties controlled by this subsection and attributable to contaminated runoff, which may be discharged after the application of the best conventional pollutant control technology by a point source subject to this subcategory.
BCT Effluent Limitations |
||
Pollutant or pollutant property |
Maximum for any 1 day |
Average of daily values for 30 consecutive days |
Metric units (kilograms per 1,000 m3 of flow |
||
BOD5 |
48.0 |
26.0 |
TSS |
33.0 |
21.0 |
Oil and grease |
15.0 |
8.0 |
pH |
(1) |
(1) |
English units (pounds per 1,000 gallons of flow) |
||
BOD5 |
0.4 |
0.22 |
TSS |
0.28 |
0.18 |
Oil and grease |
0.13 |
0.067 |
pH |
(1) |
(1) |
1 Within the range of 6.0 to 9.0.