Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection - Wisconsin Pollutant Discharge Elimination System
Chapter NR 230 - Inorganic chemicals manufacturing
Subchapter XXXIV - Chrome pigments
Section NR 230.345 - Pretreatment standards for existing sources

Universal Citation: WI Admin Code ยง NR 230.345

Current through August 26, 2024

(1) Except as provided in ss. NR 211.13 and 211.14 and sub. (2), 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 44

Chrome Pigments(1)

PSES

milligrams per liter

Pollutant or pollutant property

Maximum for any 1 day

Average of daily values for 30 consecutive days

Chromium

2.9

1.2

Lead

3.4

1.4

Zinc

2.9

1.2

(1) When a POTW finds that mass limitations are necessary, the PSES shall be the limitations set forth in s. NR 230.342 for chromium, lead, and zinc.

(2) Existing sources which annually introduce less than 210,000 cubic meters (55 million gallons) of chrome pigments process wastewater into a POTW shall comply with ch. NR 211.

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