Wis. Admin. Code Department of Natural Resources § NR 257.36 - 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. Degassing operations may not discharge wastewater pollutants.

Table 99

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 extruded

Chromium

0.13

0.05

Cyanide

0.07

0.03

Zinc

0.35

0.15

TTO

0.24

Oil and grease (alternate monitoring parameter)

3.40

3.40

Table 100

Extrusion press leakage PSNS

Pollutant or pollutant property

Maximum for

any 1 day

Maximum for monthly average

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

Chromium

0.11

0.05

Cyanide

0.06

0.03

Zinc

0.31

0.13

TTO

0.21

Oil and grease (alternate monitoring parameter)

2.98

2.98

Table 101

Direct chill 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 cast

Chromium

0.49

0.20

Cyanide

0.27

0.11

Zinc

1.36

0.56

TTO

0.92

Oil and grease (alternate monitoring parameter)

13.29

13.29

Table 102

Press 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

0.17

Zinc

2.08

0.86

TTO

1.41

Oil and grease (alternate monitoring parameter)

20.37

20.37

Table 103

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

0.17

Zinc

2.08

0.86

TTO

1.41

Oil and grease (alternate monitoring parameter)

20.37

20.37

Table 104

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 105

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 106

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

0.81

TTO

1.34

Oil and grease (alternate monitoring parameter)

19.33

19.33

Notes

Wis. Admin. Code Department of Natural Resources § NR 257.36
Cr. Register, November, 1989, No. 407, eff. 12-1-89.

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