40 CFR 430.117 - Pretreatment standards for new sources (PSNS).

Regulations last checked for updates: Feb 16, 2025

Title 40 - Protection of Environment last revised: Nov 16, 2025

View all text of Subpart K [§ 430.110 - § 430.117]

§ 430.117 - Pretreatment standards for new sources (PSNS).

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:

Subpart K

[PSNS for non-integrated mills where fine paper is produced from purchased pulp—wood fiber furnish subdivision]

Pollutant or pollutant property	Maximum for any 1 day
Pollutant or pollutant property	Milligrams/liter (mg/l)	Kg/kkg (or pounds per 1,000 lb) of product ^a
Pentachlorophenol	(0.052)(9.4)/y	0.0020
Trichlorophenol	(0.016)(9.4)/y	0.0064
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.

Subpart K

[PSNS for non-integrated mills where fine paper is produced from purchased pulp—cotton fiber furnish subdivision]

Pollutant or pollutant property	Maximum for any 1 day
Pollutant or pollutant property	Milligrams/liter (mg/l)	Kg/kkg (or pounds per 1,000 lb) of product ^a
Pentachlorophenol	(0.044)(31.1)/y	0.0056
Trichlorophenol	(0.014)(31.1)/y	0.0018
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.

Subpart K

[PSNS for non-integrated mills where lightweight papers are produced from purchased pulp]

Pollutant or pollutant property	Maximum for any 1 day
Pollutant or pollutant property	Milligrams/liter (mg/l)	Kg/kkg (or pounds per 1,000 lb) of product ^a
Pentachlorophenol	(0.041)(38.2)/y	0.0065
Trichlorophenol	(0.013)(38.2)/y	0.0020
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.

Subpart K

[PSNS for non-integrated mills where lightweight papers are produced from purchased pulp—electrical grade papers subdivision]

Pollutant or pollutant property	Maximum for any 1 day
Pollutant or pollutant property	Milligrams/liter (mg/l)	Kg/kkg (or pounds per 1,000 lb) of product ^a
Pentachlorophenol	(0.037)(66.8)/y	0.010
Trichlorophenol	(0.012)(66.8)/y	0.0032
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.

authority: Sections 301, 304, 306, 307, 308, 402, and 501 of the Clean Water Act, as amended, (33 U.S.C. 1311,1314,1316,1317,1318,1342,and,and,as.S.C. 7412)

source: 63 FR 18635, Apr. 15, 1998, unless otherwise noted.

cite as: 40 CFR 430.117