Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection Wisconsin Pollutant Discharge Elimination System
Chapter NR 274 - Nonferrous metals manufacturing
Subchapter XXIV - Secondary Nickel
Section NR 274.245 - Pretreatment standards for existing sources

Universal Citation: WI Admin Code ยง NR 274.245
Current through August 26, 2024

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 PSES:

Table 24-4

Secondary Nickel Slag Reclaim Tailings

PSES

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of slag input into the reclaim process

Chromium

5.653

2.313

Copper

24.410

12.850

Nickel

24.670

16.320

Table 24-5

Secondary Nickel Acid Reclaim Leaching Filtrate

PSES

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of acid reclaim nickel produced

Chromium

2.198

0.899

Copper

9.491

4.995

Nickel

9.590

6.344

Table 24-6

Secondary Nickel Acid Reclaim Leaching Belt Filter Backwash

PSES

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of nickel produced

Chromium

0.528

0.216

Copper

2.278

1.199

Nickel

2.302

1.523

Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.