Wis. Admin. Code Department of Natural Resources NR 257.56

Current through October 28, 2024
Section NR 257.56 - Pretreatment standards for new sources

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 153

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 drawn with neat oils

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 154

Continuous rod casting lubricant PSNS

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

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

Chromium

0.0007

0.0003

Cyanide

0.0004

0.0002

Zinc

0.0020

0.0008

TTO

0.0014

Oil and grease (alternate monitoring parameter)

0.020

0.020

Table 155

Continuous rod casting 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 rod cast

Chromium

0.072

0.029

Cyanide

0.039

0.016

Zinc

0.198

0.082

TTO

0.134

Oil and grease (alternate monitoring parameter)

1.94

1.94

Table 156

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

0.306

Cyanide

0.41

0.163

Zinc

2.08

0.856

TTO

1.41

Oil and grease (alternate monitoring parameter)

20.37

20.37

Table 157

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 158

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 159

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

Wis. Admin. Code Department of Natural Resources NR 257.56

Cr. Register, November, 1989, No. 407, eff. 12-1-89.