Wis. Admin. Code Department of Natural Resources NR 262.14

Current through November 25, 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.