Wis. Admin. Code NR § 262.14

Current through May 28, 2024

Section NR 262.14 - Pretreatment standards for existing sources

(1) 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

	Maximum for any 1 day		Maximum for monthly average
Pollutant or pollutant property	Metal preparation	Coating operation	Metal preparation	Coating operation
	Milligrams per liter (mg/l)
Chromium . .	0.42		0.17
Lead.......	0.15		0.13
Nickel......	1.41		1.0
Zinc .......	1.33		0.56

(2) In cases where POTWs find it necessary to impose mass effluent pretreatment standards the following equivalent mass standards are provided:

PSES

	Maximum for any 1 day		Maximum for monthly average
Pollutant or pollutant property	Metal preparation	Coating operation	Metal preparation	Coating operation
	Metric units-mg/m2 of area processed or coated
Chromium .	16.82	0.53	6.81	0.22
Lead ......	6.01	0.19	5.21	0.16
Nickel .....	56.5	1.78	40.1	1.26
Zinc ......	53.3	1.68	22.5	0.71
	English units-pounds per 1 million ft2 of area processed or coated
Chromium .	3.45	0.11	1.4	0.05
Lead ......	1.23	0.04	1.07	0.03
Nickel .....	11.6	0.37	8.2	0.26
Zinc ......	10.9	0.35	4.6	0.15

Wis. Admin. Code Department of Natural Resources § NR 262.14

Cr. Register, October, 1986, No. 370, eff. 11-1-86.