Wis. Admin. Code NR § 274.275

Current through May 28, 2024
Section NR 274.275 - Pretreatment standards for existing sources

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

Table 27-6

Primary Rare Earth Metals Dryer Vent Water Quench and Scrubber

PSES

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of mischmetal produced from wet rare earth chlorides

Hexachlorobenzene

0.042

0.042

Chromium

1.544

0.626

Lead

1.168

0.542

Nickel

2.295

1.544

Table 27-7

Primary Rare Earth Metals Dryer Vent Caustic Wet Air Pollution Control

PSES

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of mischmetal produced from wet rare earth chlorides

Hexachlorobenzene

0.007

0.007

Chromium

0.272

0.110

Lead

0.206

0.095

Nickel

0.404

0.272

Table 27-8

Primary Rare Earth Metals Electrolytic Cell Water Quench and Scrubber

PSES

Maximum for any 1 day m

Maximum for onthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of total mischmetal produced

Hexachlorobenzene

0.094

0.094

Chromium

3.474

1.409

Lead

2.629

1.221

Nickel

5.165

3.474

Table 27-9

Primary Rare Earth Metals Electrolytic Cell Caustic Wet Air Pollution Control

PSES

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of total mischmetal produced

Hexachlorobenzene

0.000

0.000

Chromium

0.000

0.000

Lead

0.000

0.000

Nickel

0.000

0.000

Table 27-10

Primary Rare Earth Metals Sodium Hypochlorite Filter Backwash

PSES

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of total mischmetal produced

Hexachlorobenzene

0.004

0.004

Chromium

0.134

0.054

Lead

0.101

0.047

Nickel

0.199

0.134

Wis. Admin. Code Department of Natural Resources § NR 274.275

Cr. Register, March, 1991, No. 423, eff. 4-1-91.