§ 421.56 - Pretreatment standards for new sources.

§ 421.56 Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new 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 new sources. The mass of wastewater pollutants in primary electrolytic copper refining process wastewater introduced into a POTW shall not exceed the following values:

(a) Subpart E - Casting Contact Cooling.

PSNS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of copper cast
Arsenic	.692	.309
Copper	.638	.304
Nickel	.274	.184

(b) Subpart E - Anode and Cathode Rinse.

PSNS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of cathode copper production
Arsenic	.000	.000
Copper	.000	.000
Nickel	.000	.000

(c) Subpart E - Spent Electrolyte.

PSNS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of cathode copper production
Arsenic	.068	.031
Copper	.063	.030
Nickel	.027	.018

(d) Subpart E - Casting Wet Air Pollution Control.

PSNS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of casting production
Arsenic	.000	.000
Copper	.000	.000
Nickel	.000	.000

(e) Subpart E - By-Product Recovery.

PSNS

Pollutant or pollutant property	Maximum for any 1 day	Maximum for monthly average
	mg/kg (pounds per million pounds) of product recovered from electrolytic slimes processing
Arsenic	.000	.000
Copper	.000	.000
Nickel	.000	.000

[49 FR 8801, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984]