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Code of Federal Regulations Title 40. Protection of Environment § 40.471.101 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)

Current as of October 02, 2022 | Updated by FindLaw Staff

Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT):

(a) Metal powder production atomization wastewater.

SUBPART J—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of powder wet atomized

Copper

9.58

5.04

Cyanide

1.46

0.605

Lead

2.12

1.01

Oil and grease

101

60.5

TSS

207

98.3

pH

(1)

(1)

1 Within the range of 7.5 to 10.0 at all times.

(b) Sizing spent emulsion.

SUBPART J—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of powder sized

Copper

0.028

0.015

Cyanide

0.004

0.002

Lead

0.006

0.003

Oil and grease

0.292

0.175

TSS

0.599

0.285

pH

(1)

(1)

1 Within the range of 7.5 to 10.0 at all times.

(c) Oil-resin impregnation wastewater—subpart J—BPT. There shall be no discharge of process wastewater pollutants.

(d) Steam treatment wet air pollution control scrubber blowdown.

SUBPART J—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of power metallurgy parts steam treated

Copper

1.51

0.792

Cyanide

0.230

0.095

Lead

0.333

0.159

Oil and grease

15.9

9.51

TSS

32.5

15.5

pH

(1)

(1)

1 Within the range of 7.5 to 10.0 at all times.

(e) Tumbling, burnishing and cleaning wastewater.

SUBPART J—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of powder metallurgy parts tumbled, burnished, or cleaned

Copper

8.36

4.40

Cyanide

1.28

0.528

Lead

1.85

0.880

Oil and grease

88.0

52.800

TSS

181

85.8

pH

(1)

(1)

1 Within the range of 7.5 to 10.0 at all times.

(f) Sawing or grinding spent neat oils–subpart J– BPT. There shall be no discharge of process wastewater pollutants.

(g) Sawing or grinding spent emulsion.

SUBPART J—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of powder metallurgy parts sawed or ground with emulsion

Copper

0.035

0.018

Cyanide

0.005

0.002

Lead

0.008

0.004

Oil and grease

0.362

0.217

TSS

0.742

0.353

pH

(1)

(1)

1 Within the range of 7.5 to 10.0 at all times.

(h) Sawing or grinding contact cooling water.

SUBPART J—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of powder metallurgy parts sawed or ground with contact cooling

Copper

3.08

1.62

Cyanide

0.470

0.195

Lead

0.681

0.324

Oil and grease

32.4

19.5

TSS

66.4

31.6

pH

(1)

(1)

1 Within the range of 7.5 to 10.0 at all times.

(i) Hot pressing contact cooling water.

SUBPART J—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of powder cooled after pressing

Copper

16.7

8.80

Cyanide

2.55

1.06

Lead

3.70

1.76

Oil and grease

176

106

TSS

361

172

pH

(1)

(1)

1 Within the range of 7.5 to 10.0 at all times.

(j) Mixing wet air pollution control scrubber blowdown.

SUBPART J—BPT

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (pounds per million off-pounds) of powder mixed

Copper

15.0

7.90

Cyanide

2.29

0.948

Lead

3.32

1.58

Oil and grease

158

94.8

TSS

324

154

pH

(1)

(1)

1 Within the range of 7.5 to 10.0 at all times.

(k) Degreasing spent solvents—subpart J—BPT. There shall be no discharge of process wastewater pollutants.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.471.101 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT) - last updated October 02, 2022 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-471-101/

Read this complete Code of Federal Regulations Title 40. Protection of Environment § 40.471.101 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT) on Westlaw

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