Wis. Admin. Code NR § 274.292

Current through May 28, 2024
Section NR 274.292 - Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available

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 BPT:

Table 29-1

Secondary Tin Tin Smelter Sulfur Dioxide Scrubber

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of crude tapped tin metal produced

Arsenic

19.220

8.554

Lead

3.863

1.840

Iron

11.040

5.611

Tin

3.495

2.024

Total suspended solids

377.100

179.400

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Table 29-2

Secondary Tin Dealuminizing Rinse

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of dealuminized scrap produced

Lead

0.015

0.007

Cyanide

0.010

0.004

Fluoride

1.225

0.700

Tin

0.013

0.008

Total suspended solids

1.435

0.683

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Table 29-3

Secondary Tin Tin Mud Acid Neutralization Filtrate

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds)

of neutralized dewatered tin mud

produced

Lead

2.120

1.009

Cyanide

1.464

0.606

Fluoride

176.600

100.400

Tin

1.918

1.110

Total suspended solids

206.900

98.420

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Table 29-4

Secondary Tin Tin Hydroxide Wash

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of tin hydroxide washed

Lead

5.020

2.391

Cyanide

3.466

1.434

Fluoride

418.400

237.900

Tin

4.542

2.630

Total suspended solids

490.100

233.100

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Table 29-5

Secondary Tin Spent Electrowinning Solution From New Scrap

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of cathode tin produced

Lead

7.056

3.360

Cyanide

4.872

2.016

Fluoride

588.000

334.300

Tin

6.384

3.696

Total suspended solids

688.800

327.600

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Table 29-6

Secondary Tin Spent Electrowinning Solution From Municipal Solid Waste

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of municipal solid waste scrap used as a raw material

Lead

0.050

0.024

Cyanide

0.035

0.014

Fluoride

4.165

2.368

Tin

0.045

0.026

Total suspended solids

4.879

2.321

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Table 29-7

Secondary Tin Tin Hydroxide Supernatant From Scrap

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of tin metal recovered from scrap

Lead

23.370

11.130

Cyanide

16.140

6.677

Fluoride

1,947.000

1,107.000

Tin

21.140

12.240

Total suspended solids

2,281.000

1,085.000

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Table 29-8

Secondary Tin Tin Hydroxide Supernatant From Plating Solutions and Sludges

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of tin metal recovered from plating solutions and sludges

Lead

48.30

23.00

Cyanide

33.35

13.80

Fluoride

4,025.00

2,289.00

Tin

43.70

25.30

Total suspended solids

4,715.00

2,243.00

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Table 29-9

Secondary Tin Tin Hydroxide Filtrate

BPT Effluent Limitations

Maximum for any 1 day

Maximum for monthly average

Pollutant or pollutant property

mg/kg (pounds per million pounds) of crude tapped tin metal produced

Lead

10.520

5.009

Cyanide

7.263

3.005

Fluoride

876.500

498.400

Tin

9.517

5.510

Total suspended solids

1,027.000

488.400

pH

(1)

(1)

(1) Within the range of 7.5 to 10.0 at all times

Wis. Admin. Code Department of Natural Resources § NR 274.292

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