Except as provided in 40 CFR 403.7, any new source subject to this subpart that introduces pollutants into a publicly owned treatment works must: comply with 40 CFR part 403; and achieve the following pretreatment standards for new sources (PSNS) if it uses chlorophenolic-containing biocides. Permittees not using chlorophenolic-containing biocides must certify to the permit-issuing authority that they are not using these biocides:

Ask a legal question, get an answer ASAP!
Click here to chat with a lawyer about your rights.

Subpart A

[PSNS]

Pollutant or pollutant propertyMaximum for any 1 day
Milligrams/liter (mg/l)Kg/kkg (or pounds per 1,000 lb) of product a
Pentachlorophenol(0.012)(50.7)/y0.0025
Trichlorophenol(0.089)(50.7)/y0.019
y = wastewater discharged in kgal per ton of product.

a The following equivalent mass limitations are provided as guidance in cases when POTWs find it necessary to impose mass effluent limitations.