Wis. Admin. Code Department of Natural Resources NR 273.093

Current through November 25, 2024
Section NR 273.093 - 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 9-12

Zirconium-Hafnium

Extrusion Press Hydraulic Fluid Leakage

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 zirconium-hafnium extruded

Chromium

0.104

0.043

Cyanide

0.069

0.029

Nickel

0.455

0.301

Ammonia

31.6

13.9

Fluoride

14.1

6.26

Table 9-13

Zirconium-Hafnium

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 zirconium-hafnium heat treated

Chromium

0.015

0.006

Cyanide

0.010

0.004

Nickel

0.066

0.044

Ammonia

4.57

2.01

Fluoride

2.04

0.906

Table 9-14

Zirconium-Hafnium

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 zirconium-hafnium surface treated

Chromium

0.150

0.061

Cyanide

0.099

0.041

Nickel

0.653

0.432

Ammonia

45.3

20.0

Fluoride

20.3

8.98

Table 9-15

Zirconium-Hafnium

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 zirconium-hafnium surface treated

Chromium

0.391

0.160

Cyanide

0.258

0.107

Nickel

1.71

1.13

Ammonia

119

52.1

Fluoride

52.9

23.5

Table 9-16

Zirconium-Hafnium

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 zirconium-hafnium alkaline cleaned

Chromium

0.704

0.288

Cyanide

0.464

0.192

Nickel

3.07

2.03

Ammonia

214

93.8

Fluoride

95.2

42.3

Table 9-17

Zirconium-Hafnium

Alkaline Cleaning 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 zirconium-hafnium alkaline cleaned

Chromium

1.38

0.565

Cyanide

0.911

0.377

Nickel

6.03

3.99

Ammonia

419

184

Fluoride

187

82.9

Table 9-18

Zirconium-Hafnium

Sawing or Grinding Spent Emulsions

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 zirconium-hafnium sawed or ground with emulsions

Chromium

0.124

0.051

Cyanide

0.082

0.034

Nickel

0.540

0.357

Ammonia

37.5

16.50

Fluoride

16.7

7.42

Table 9-19

Zirconium-Hafnium

Molten Salt 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 zirconium-hafnium treated with molten salt

Chromium

0.333

0.136

Cyanide

0.220

0.091

Nickel

1.45

0.960

Ammonia

101

44.3

Fluoride

45.0

20.0

Table 9-20

Zirconium-Hafnium

Sawing or Grinding 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 zirconium-hafnium sawed or ground with contact cooling water

Chromium

0.142

0.058

Cyanide

0.093

0.039

Nickel

0.617

0.408

Ammonia

42.8

18.8

Fluoride

19.1

8.48

Table 9-21

Zirconium-Hafnium

Sawing or Grinding 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 sawed or ground zirconium-hafnium rinsed

Chromium

0.079

0.033

Cyanide

0.052

0.022

Nickel

0.346

0.229

Ammonia

24.0

10.6

Fluoride

10.7

4.75

Table 9-22

Zirconium-Hafnium

Inspection Testing Wastewater

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 zirconium-hafnium tested

Chromium

0.007

0.003

Cyanide

0.005

0.002

Nickel

0.030

0.020

Ammonia

2.06

0.903

Fluoride

0.917

0.407

Wis. Admin. Code Department of Natural Resources NR 273.093

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