Wisconsin Administrative Code
Department of Natural Resources
NR 200-299 - Environmental Protection - Wisconsin Pollutant Discharge Elimination System
Chapter NR 279 - Petroleum refining
Section NR 279.25 - Pretreatment standards for existing sources (PSES)

Universal Citation: WI Admin Code ยง NR 279.25
Current through August 26, 2024

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subcategory which introduces pollutants into a publicly owned treatment works shall comply with 40 CFR Part 403 and achieve the following pretreatment standards for existing sources (PSES). The following standards apply to the total refinery flow contribution to the POTW:

Pollutant or pollutant property

Pretreatment standards for existing sources-maximum for any 1 day

Milligrams per liter (mg/l)

Oil and grease

100.0

Ammonia as N

1100.0

1 Where the discharge to the POTW consists solely of sour waters, the owner or operator has the option of complying with this limit or the daily maximum mass limitation for ammonia set forth in s. NR 279.23(1) and (2).

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