Wis. Admin. Code Department of Natural Resources NR 254.126

Current through November 25, 2024
Section NR 254.126 - Pretreatment standards for new sources

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

Table 206

Strip, Sheet, and Miscellaneous Products Galvanizing, Terne Coating, and Other Coatings

PSNS

Maximum for any 1 day

Average of

daily values for

30 consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Lead

0.000282

0.0000939

Zinc

0.000376

0.000125

Hexavalent chro-mium(1)

0.0000376

0.0000125

(1) The limitations for hexavalent chromium apply to galvanizing operations which discharge wastewaters from the chromate rinse step.

Table 207

Wire Products and Fasteners Galvanizing and Other Coatings

PSNS

Maximum for any 1 day

Average of

daily values for

30 consecutive

days

Pollutant or pollutant property

kg/kkg (pounds per 1,000 pounds) of product

Lead

0.00113

0.000376

Zinc

0.00150

0.000500

Hexavalent chro-mium(1)

0.000150

0.0000501

(1) The limitations for hexavalent chromium apply to galvanizing operations which discharge wastewaters from the chromate rinse step.

Table 208

Fume Scrubbers

PSNS

Maximum for any 1 day

Average of

daily values for

30 consecutive

days

Pollutant or pollutant property

kg per day for each fume scrubber

Lead

0.0368

0.0123

Zinc

0.0491

0.0164

Hexavalent chro-mium(1)

0.00490

0.00163

(1) The limitations for hexavalent chromium apply to galvanizing operations which discharge wastewaters from the chromate rinse step.

(2)Within the range of 6.0 to 9.0

Wis. Admin. Code Department of Natural Resources NR 254.126

Cr. Register, May, 1989, No. 401, eff. 6-1-89.