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)

Universal Citation: WI Admin Code ยง NR 279.54

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.

(a) Size factor.

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

(b) Process factor.

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.

(a) If wastewater consists solely of contaminated runoff and is not commingled or treated with process wastewater, it may be discharged if it does not exceed 15 mg/l oil and grease based upon an analysis of any single grab or composite sample.

(b) If contaminated runoff is commingled or treated with process wastewater, or if wastewater consisting solely of contaminated runoff which exceeds 15 mg/l oil and grease is not commingled or treated with any other type of wastewater, the quantity of pollutants discharged may not exceed the quantity determined by multiplying the flow of contaminated runoff as determined by the department times the concentrations listed in the following table:

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.

Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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