Wis. Admin. Code Department of Natural Resources NR 230.176

Current through October 28, 2024
Section NR 230.176 - Pretreatment standards for new sources

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 shall achieve the following PSNS:

Table 24

Sodium Dichromate(1)

PSNS

kg/kkg (pounds per 1,000 pounds) of sodium dichromate

Pollutant or pollutant property

Maximum for any 1 day

Average of daily values for 30 consecutive days

Total Chromium

1.0

0.50

Hexavalent Chromium

0.11

0.060

Nickel

0.80

0.40

(1) When a POTW finds that mass limitations are necessary, the PSNS shall be the standards set forth in s. NR 230.172 for total chromium, hexavalent chromium, and nickel.

Wis. Admin. Code Department of Natural Resources NR 230.176

Cr. Register, September, 1990, No. 417, eff. 10-1-90.