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Code of Federal Regulations Title 40. Protection of Environment § 40.440.62 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT)

Current as of January 02, 2025 | Updated by Findlaw Staff

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

(a) The concentration of pollutants discharged in mine drainage from mines producing 5000 metric tons (5512 short tons) or more of tungsten bearing ores per year shall not exceed:

Effluent limitations

Effluent characteristic

Maximum for any 1 day

Average of daily values for 30 consecutive days

Milligrams per liter

TSS

30

20

Cd

.10

.05

Cu

.3

.15

Zn

1.0

.5

Pb

.6

.3

As

1.0

.5

pH

(1)

(1)

1 Within the range 6.0 to 9.0.

(b) The concentration of pollutants discharged in mine drainage from mines producing less than 5000 metric tons (5512 short tons) or discharged from mills processing less than 5000 metric tons (5512 short tons) of tungsten ores per year by methods other than ore leaching shall not exceed:

Effluent limitations

Effluent characteristic

Maximum for any 1 day

Average of daily values for 30 consecutive days

Milligrams per liter

TSS

50

30

pH

(1)

(1)

1 Within the range 6.0 to 9.0.

(c) The concentration of pollutants discharged from mills processing 5000 metric tons (5512 short tons) or more of tungsten ores per year by purely physical methods including ore crushing, washing, jigging, heavy media separation, and magnetic and electrostatic separation shall not exceed:

Effluent limitations

Effluent characteristic

Maximum for any 1 day

Average of daily values for 30 consecutive days

Milligrams per liter

TSS

30

20

Cd

.10

.05

Cu

.30

.15

Zn

1.0

.5

As

1.0

.5

pH

(1)

(1)

1 Within the range 6.0 to 9.0.

(d) The concentration of pollutants discharged from mills processing 5000 metric tons (5512 short tons) or more of tungsten ores per year by froth flotation methods shall not exceed:

Effluent limitations

Effluent characteristic

Maximum for any 1 day

Average of daily values for 30 consecutive days

Milligrams per liter

TSS

30

20

Cd

.10

.05

Cu

.30

.15

Zn

1.0

.5

As

1.0

.5

pH

(1)

(1)

1 Within the range 6.0 to 9.0.

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Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.440.62 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT) - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-440-62/

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