Wis. Admin. Code Department of Natural Resources § NR 257.65 - Pretreatment standards for existing sources

Current through March 28, 2022

Except as provided in ss. NR 211.13 and 211.14, any existing source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following pretreatment standards for existing sources:

Table 181

Core operation PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum drawn with emulsions or soaps

Chromium

0.205

0.084

Cyanide

0.135

0.056

Zinc

0.681

0.285

TTO

0.32

Oil and grease (alternate monitoring parameter)

25.0

12.0

Table 182

Continuous rod casting lubricant PSES

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

0.0009

0.0004

Cyanide

0.0006

0.0003

Zinc

0.0029

0.0012

TTO

0.0014

Oil and grease (alternate monitoring parameter)

0.10

0.052

Table 183

Continuous rod casting contact cooling water PSES

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

0.086

0.035

Cyanide

0.056

0.024

Zinc

0.283

0.119

TTO

0.134

Oil and grease (alternate monitoring parameter)

10.0

5.1

Table 184

Solution heat treatment contact cooling water PSES

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

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

Chromium

0.896

0.367

Cyanide

0.591

0.245

Zinc

2.98

1.25

TTO

1.41

Oil and grease (alternate monitoring parameter)

110.0

53.0

Table 185

Cleaning or etching bath PSES

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

0.079

0.032

Cyanide

0.052

0.022

Zinc

0.262

0.11

TTO

0.124

Oil and grease (alternate

monitoring parameter)

9.30

4.70

Table 186

Cleaning or etching rinse and hot water seal

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

0.612

0.251

Cyanide

0.404

0.167

Zinc

2.03

0.849

TTO

0.96

Oil and grease (alternate monitoring parameter)

73.0

36.0

Table 187

Cleaning or etching scrubber liquor PSES

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

0.851

0.348

Cyanide

0.561

0.232

Zinc

2.82

1.18

TTO

1.34

Oil and grease (alternate monitoring parameter)

100.0

50.0

Notes

Wis. Admin. Code Department of Natural Resources § NR 257.65
Cr. Register, November, 1989, No. 407, eff. 12-1-89.

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