Skip to main content
Find a Lawyer

Code of Federal Regulations Title 40. Protection of Environment § 40.421.315 Pretreatment standards for existing sources

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

Except as provided in 40 CFR 403.7, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for existing sources. The mass of wastewater pollutants in secondary tungsten and cobalt process wastewater introduced into a POTW shall not exceed the following values:

(a) Tungsten detergent wash and rinse.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of tungsten scrap washed

Copper

0.250

0.119

Nickel

0.107

0.072

Ammonia (as N)

25.990

11.430

Cobalt

0.538

0.236

Tungsten

0.679

0.302

(b) Tungsten leaching acid.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of tungsten produced

Copper

3.291

1.569

Nickel

1.414

0.951

Ammonia (as N)

342.700

150.700

Cobalt

7.096

3.111

Tungsten

8.947

3.985

(c) Tungsten post-leaching wash and rinse.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of tungsten produced

Copper

6.583

3.137

Nickel

2.829

1.903

Ammonia (as N)

685.600

301.400

Cobalt

14.194

6.223

Tungsten

17.900

7.972

(d) Synthetic scheelite filtrate.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of synthetic scheelite produced

Copper

 21.330

10.170

Nickel

 9.164

6.165

Ammonia (as N)

2,221.000

976.300

Cobalt

 45.984

20.160

Tungsten

 57.980

 25.820

(e) Tungsten carbide leaching wet air pollution control.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of tungsten carbide scrap

Copper

2.241

1.068

Nickel

0.963

0.648

Ammonia (as N)

233.400

102.600

Cobalt

4.833

2.119

Tungsten

6.093

2.714

(f) Tungsten carbide wash water.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of tungsten carbide produced

Copper

 10.670

5.083

Nickel

 4.583

3.083

Ammonia (as N)

1,111.000

488.300

Cobalt

 22.999

10.083

Tungsten

 29.000

12.920

(g) Cobalt sludge leaching wet air pollution control.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of cobalt produced from cobalt sludge

Copper

 45.800

 21.830

Nickel

 19.680

 13.240

Ammonia (as N)

4,770.000

2,097.000

Cobalt

 98.756

 43.295

Tungsten

 124.500

 55.460

(h) Crystallization decant.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of cobalt produced

Copper

 53.310

 25.410

Nickel

 22.910

 15.410

Ammonia (as N)

5,552.000

2,441.000

Cobalt

 114.954

 50.397

Tungsten

 144.9

 64.56

(i) Acid wash decant.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of cobalt produced

Copper

 24.400

 11.630

Nickel

 10.490

 7.053

Ammonia (as N)

2,541.000

1,117.000

Cobalt

 52.611

 23.065

Tungsten

 66.34

 29.55

(j) Cobalt hydroxide filtrate.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of cobalt produced

Copper

 72.510

 34.560

Nickel

 31.160

 20.960

Ammonia (as N)

7,551.000

3,320.000

Cobalt

 156.346

 68.543

Tungsten

 197.1

 87.8

(k) Cobalt hydroxide filter cake wash.

PSES FOR THE SECONDARY TUNGSTEN AND COBALT SUBCATEGORY

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/kg (pounds per million pounds) of cobalt produced

Copper

 139.600

 66.510

Nickel

 59.970

 40.340

Ammonia (as N)

14,530.000

6,389.000

Cobalt

 300.094

 131.932

Tungsten

 379.400

 169.000
Back to chapter list
Previous part of code Next part of code
Back to chapter list

Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.421.315 Pretreatment standards for existing sources - last updated October 02, 2022 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-421-315/

Read this complete Code of Federal Regulations Title 40. Protection of Environment § 40.421.315 Pretreatment standards for existing sources on Westlaw. Westlaw subscription required.

FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature or via Westlaw before relying on it for your legal needs.

Was this helpful?

Search all Codes

Welcome to FindLaw's Cases & Codes

A free source of state and federal court opinions, state laws, and the United States Code. For more information about the legal concepts addressed by these cases and statutes, visit FindLaw's Learn About the Law.

Go to Learn About the Law

Latest Blog Posts

For Legal Professionals

Learn About the Law

Get help with your legal needs

FindLaw’s Learn About the Law features thousands of informational articles to help you understand your options. And if you’re ready to hire an attorney, find one in your area who can help.

Go to Learn About the Law

Need to find an attorney?

Search our directory by legal issue

Enter information in one or both fields (Required)

Copied to clipboard