Wis. Admin. Code Department of Natural Resources NR 274.245

Current through October 28, 2024

Section NR 274.245 - Pretreatment standards for existing sources

Except as provided in ss. NR 211.13 and 211.14, any existing source subject to this subchapter which introduces pollutants into a POTW shall comply with ch. NR 211 and achieve the following PSES:

Table 24-4

Secondary Nickel Slag Reclaim Tailings

PSES
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/kg (pounds per million pounds) of slag input into the reclaim process
Chromium	5.653	2.313
Copper	24.410	12.850
Nickel	24.670	16.320

Table 24-5

Secondary Nickel Acid Reclaim Leaching Filtrate

PSES
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/kg (pounds per million pounds) of acid reclaim nickel produced
Chromium	2.198	0.899
Copper	9.491	4.995
Nickel	9.590	6.344

Table 24-6

Secondary Nickel Acid Reclaim Leaching Belt Filter Backwash

PSES
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/kg (pounds per million pounds) of nickel produced
Chromium	0.528	0.216
Copper	2.278	1.199
Nickel	2.302	1.523

Wis. Admin. Code Department of Natural Resources NR 274.245

Cr. Register, March, 1991, No. 423, eff. 4-1-91.