Wis. Admin. Code Department of Natural Resources § NR 257.44 - New source performance standards

Current through March 28, 2022

Any new source subject to this subchapter shall achieve the following performance standards:

Table 107

Core operation NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum forged

Chromium

0.019

0.008

Cyanide

0.010

0.004

Zinc

0.051

0.021

Aluminum

0.305

0.135

Oil and grease

0.50

0.50

Suspended solids

0.75

0.60

pH

(1)

(1)

1 Within the range of 7.0 to 10 at all times.

Table 108

Forging scrubber liquor NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum forged

Chromium

0.035

0.014

Cyanide

0.019

0.008

Zinc

0.096

0.04

Aluminum

0.576

0.256

Oil and grease

0.943

0.95

Suspended solids

1.42

1.13

pH

(1)

(1)

Table 109

Solution heat treatment contact cooling water NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum quenched

Chromium

0.76

0.31

Cyanide

0.41

0.163

Zinc

2.08

0.86

Aluminum

12.45

5.52

Oil and grease

20.37

20.37

Suspended solids

30.56

24.45

pH

(1)

(1)

1 Within the range of 7.0 to 10 at all times.

Table 110

Cleaning or etching bath NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched

Chromium

0.066

0.027

Cyanide

0.036

0.015

Zinc

0.183

0.075

Aluminum

1.094

0.485

Oil and grease

1.79

1.79

Suspended solids

2.69

2.15

pH

(1)

(1)

1 Within the range of 7.0 to 10 at all times.

Table 111

Cleaning or etching rinse and hot water seal NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched

Chromium

0.52

0.21

Cyanide

0.28

0.11

Zinc

1.42

0.59

Aluminum

8.50

3.77

Oil and grease

13.91

13.91

Suspended solids

20.87

16.69

pH

(1)

(1)

1 Within the range of 7.0 to 10 at all times.

Table 112

Cleaning or etching scrubber liquor NSPS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched

Chromium

0.72

0.29

Cyanide

0.39

0.155

Zinc

1.97

0.812

Aluminum

11.81

5.24

Oil and grease

19.33

19.33

Suspended solids

29.00

23.20

pH

(1)

(1)

1 Within the range of 7.0 to 10 at all times.

Notes

Wis. Admin. Code Department of Natural Resources § NR 257.44
Cr. Register, November, 1989, No. 407, eff. 12-1-89.

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