40 CFR § 420.85 - Pretreatment standards for existing sources (PSES).

Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources.

(a) Salt bath descaling, oxidizing—(1) Batch, sheet and plate.

Subpart H

Pollutant or pollutant property	Pretreatment standards for existing sources
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Kg/kkg (pounds per 1,000 lb) of product
Chromium	0.00292	0.00117
Nickel	0.00263	0.000876

(2) Batch, rod and wire.

Subpart H

Pollutant or pollutant property	Pretreatment standards for existing sources
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Kg/kkg (pounds per 1,000 lb) of product
Chromium	0.00175	0.000701
Nickel	0.00158	0.000526

(3) Batch, pipe and tube.

Subpart H

Pollutant or pollutant property	Pretreatment standards for existing sources
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Kg/kkg (pounds per 1,000 lb) of product
Chromium	0.00709	0.00284
Nickel	0.00638	0.00213

(4) Continuous.

Subpart H

Pollutant or pollutant property	Pretreatment standards for existing sources
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Kg/kkg (pounds per 1,000 lb) of product
Chromium	0.00138	0.000551
Nickel	0.00124	0.000413

(b) Salt bath descaling, reducing—(1) Batch.

Subpart H

Pollutant or pollutant property	Pretreatment standards for existing sources
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Kg/kkg (pounds per 1,000 lb) of product
Cyanide	0.00102	0.000339
Chromium	0.00136	0.000542
Nickel	0.00122	0.000407

(2) Continuous.

Subpart H

Pollutant or pollutant property	Pretreatment standards for existing sources
	Maximum for any 1 day	Average of daily values for 30 consecutive days
	Kg/kkg (pounds per 1,000 lb) of product)
Cyanide	0.00569	0.00190
Chromium	0.00759	0.00304
Nickel	0.00683	0.00228

[47 FR 23284, May 27, 1982; 47 FR 41739, Sept. 22, 1982]