Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 254 - Iron and steel manufacturing
Subchapter X - Cold Forming Subcategory
Section NR 254.103 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable

Current through August 26, 2024

Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BAT:

Table 166

Single Stand Recirculation Cold Rolling Mills

BAT Effluent Limitations

Maximum for any 1 day

Average of

daily values for

30 consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Chromium(1)

0.0000209

0.0000084

Lead

0.0000094

0.0000031

Nickel(1)

0.0000188

0.0000063

Zinc

0.0000063

0.0000021

Naphthalene

0.0000021

Tetrachloroethylene

0.0000031

(1) The limitations for chromium and nickel are applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters

Table 167

Multiple Stand Recirculation Cold Rolling Mills

BAT Effluent Limitations

Maximum for any 1 day

Average of

daily values for

30 consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Chromium(1)

0.000104

0.0000418

Lead

0.0000469

0.0000156

Nickel(1)

0.0000939

0.0000313

Zinc

0.0000313

0.0000104

Naphthalene

0.0000104

Tetrachloroethylene

0.0000156

(1) The limitations for chromium and nickel are applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

Table 168

Combination Cold Rolling Mills

BAT Effluent Limitations

Maximum for any 1 day

Average of

daily values for

30 consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Chromium(1)

0.00125

0.000501

Lead

0.000563

0.000188

Nickel(1)

0.00113

0.000376

Zinc

0.000376

0.000125

Naphthalene

0.000125

Tetrachloroethylene

0.000188

(1) The limitations for chromium and nickel are applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

Table 169

Single Stand Direct Application Cold Rolling Mills

BAT Effluent Limitations

Maximum for any 1 day

Average of

daily values for

30 consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Chromium(1)

0.000376

0.000150

Lead

0.000169

0.0000563

Nickel(1)

0.000338

0.000113

Zinc

0.000113

0.0000376

Naphthalene

0.0000376

Tetrachloroethylene

0.0000563

(1) The limitations for chromium and nickel are applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

Table 170

Multiple Stand Direct Application Cold Rolling Mills

BAT Effluent Limitations

Maximum for any 1 day

Average of

daily values for

30 consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Chromium(1)

0.00167

0.000668

Lead

0.000751

0.000250

Nickel(1)

0.00150

0.000501

Zinc

0.000501

0.000167

Naphthalene

0.000167

Tetrachloroethylene

0.000250

(1) The limitations for chromium and nickel are applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

Table 171

Cold Worked Pipe and Tube Using Water

BAT Effluent Limitations

Maximum for any 1 day

Average of daily

values for 30

consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Chromium(1)

0.0000209

0.0000084

Lead

0.0000094

0.0000031

Nickel(1)

0.0000188

0.0000063

Zinc

0.0000063

0.0000021

(1) The limitations for chromium and nickel are applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

Table 172

Cold Worked Pipe and Tube Using Oil Solutions

BAT Effluent Limitations

Maximum for any 1 day

Average of daily

values for 30

consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Chromium(1)

0.0000209

0.0000084

Lead

0.0000094

0.0000031

Nickel(1)

0.0000188

0.0000063

Zinc

0.0000063

0.0000021

Naphthalene

0.0000021

Tetrachloroethylene

0.0000031

(1) The limitations for chromium and nickel are applicable in lieu of those for lead and zinc when cold rolling wastewaters are treated with descaling or combination acid pickling wastewaters.

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