Wis. Admin. Code Department of Natural Resources NR 273.083

Current through November 25, 2024

Section NR 273.083 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable

Except as provided in 40 CFR 125.30 to 125.32, any existing point source subject to this subchapter shall achieve the following effluent limitations representing the degree of effluent reduction attainable by application of BAT:

Table 8-12

Zinc

Rolling Spent Emulsions

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc rolled with emulsions
Chromium	0.0005	0.0002
Copper	0.002	0.0009
Cyanide	0.0003	0.0001
Zinc	0.002	0.0006

Table 8-13

Zinc

Rolling Contact Cooling Water

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc rolled with contact cooling water
Chromium	0.020	0.009
Copper	0.069	0.033
Cyanide	0.011	0.004
Zinc	0.055	0.023

Table 8-14

Zinc

Drawing Spent Emulsions

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc drawn with emulsions
Chromium	0.002	0.0009
Copper	0.008	0.004
Cyanide	0.001	0.0005
Zinc	0.006	0.003

Table 8-15

Zinc

Direct Chill Casting Contact Cooling Water

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc cast by the direct chill method
Chromium	0.019	0.008
Copper	0.065	0.031
Cyanide	0.010	0.004
Zinc	0.052	0.021

Table 8-16

Zinc

Heat Treatment Contact Cooling Water

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc heat treated
Chromium	0.029	0.012
Copper	0.098	0.047
Cyanide	0.016	0.006
Zinc	0.078	0.032

Table 8-17

Zinc

Surface Treatment Spent Baths

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc surface treated
Chromium	0.033	0.014
Copper	0.114	0.054
Cyanide	0.018	0.007
Zinc	0.091	0.038

Table 8-18

Zinc

Surface Treatment Rinse

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc surface treated
Chromium	0.133	0.054
Copper	0.457	0.219
Cyanide	0.072	0.029
Zinc	0.365	0.151

Table 8-19

Zinc

Alkaline Cleaning Spent Baths

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned
Chromium	0.002	0.0006
Copper	0.005	0.002
Cyanide	0.0007	0.0003
Zinc	0.004	0.002

Table 8-20

Zinc

Alkaline Cleaning Rinse

BAT Effluent Limita	tions
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc alkaline cleaned
Chromium	0.626	0.254
Copper	2.17	1.03
Cyanide	0.338	0.135
Zinc	1.73	0.710

Table 8-21

Zinc

Sawing or Grinding Spent Emulsions

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc sawed or ground with emulsions
Chromium	0.009	0.004
Copper	0.031	0.015
Cyanide	0.005	0.002
Zinc	0.025	0.010

Table 8-22

Zinc

Electrocoating Rinse

BAT Effluent Limitations
Maximum for any 1 day	Maximum for monthly average
Pollutant or pollutant property	mg/off-kg (pounds per million off-pounds) of zinc electrocoated
Chromium	0.085	0.035
Copper	0.293	0.140
Cyanide	0.046	0.019
Zinc	0.234	0.096

Wis. Admin. Code Department of Natural Resources NR 273.083

Cr. Register, September, 1990, No. 417, eff. 10-1-90.