Wis. Admin. Code Department of Natural Resources § NR 257.46 - Pretreatment standards for new sources

Current through March 28, 2022

Except as provided in s. NR 211.13, any new source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following pretreatment standards for new sources:

Table 119

Core operation PSNS

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

TTO

0.035

Oil and grease (alternate monitoring parameter)

0.50

0.50

Table 120

Forging scrubber liquor PSNS

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

0.040

TTO

0.065

Oil and grease (alternate monitoring parameter)

0.95

0.95

Table 121

Solution heat treatment contact cooling water PSNS

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

0.16

Zinc

2.08

0.86

TTO

1.41

Oil and grease (alternate monitoring parameter)

20.37

20.37

Table 122

Cleaning or etching bath PSNS

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

0.067

0.027

Cyanide

0.036

0.015

Zinc

0.183

0.075

TTO

0.124

Oil and grease (alternate monitoring parameter)

1.79

1.79

Table 123

Cleaning or etching rinse and hot water seal PSNS

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

TTO

0.96

Oil and grease (alternate monitoring parameter)

13.91

13.91

Table 124

Cleaning or etching scrubber liquor PSNS

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

0.16

Zinc

1.97

0.812

TTO

1.34

Oil and grease (alternate monitoring parameter)

19.33

19.33

Notes

Wis. Admin. Code Department of Natural Resources § NR 257.46
Cr. Register, November, 1989, No. 407, eff. 12-1-89.

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