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Code of Federal Regulations Title 40. Protection of Environment § 40.467.33 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable

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

(a) 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 representing the degree of effluent reduction attainable by the application of the best available technology economically achievable:

(b) There shall be no discharge allowance for wastewater pollutants from the degassing operation.

(c) The discharge of wastewater pollutants from the core and ancillary operation except those in (b) of this section, shall not exceed the values set forth below:

SUBPART C

Core

BAT effluent limitations

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum extruded

Chromium

0.15

0.061

Cyanide

0.098

0.041

Zinc

0.49

0.21

Aluminum

2.19

1.09

SUBPART C

Extrusion Press Leakage

BAT effluent limitations

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum extruded

Chromium

0.65

0.27

Cyanide

0.43

0.18

Zinc

2.16

0.90

Aluminum

9.51

4.73

SUBPART C

Direct Chill Casting Contact Cooling Water

BAT effluent limitations

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum cast

Chromium

0.59

0.24

Cyanide

0.39

0.16

Zinc

1.94

0.81

Aluminum

8.55

4.26

SUBPART C

Press Heat Treatment Contact Cooling Water

BAT effluent limitations

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum quenched

Chromium

0.90

0.37

Cyanide

0.59

0.25

Zinc

2.98

1.25

Aluminum

13.10

6.52

SUBPART C

Solution Heat Treatment Contact Cooling Water

BAT effluent limitations

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum quenched

Chromium

0.90

0.37

Cyanide

0.59

0.25

Zinc

2.98

1.25

Aluminum

13.10

6.52

SUBPART C

Cleaning or Etching Bath

BAT effluent limitations

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched

Chromium

0.079

0.032

Cyanide

0.052

0.022

Zinc

0.262

0.109

Aluminum

1.15

0.58

SUBPART C

Cleaning or Etching Rinse

BAT effluent limitations

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched

Chromium

1.7

0.7

Cyanide

1.2

0.5

Zinc

5.7

2.4

Aluminum

25

13

SUBPART C

Cleaning or Etching Scrubber Liquor

BAT effluent limitations

Pollutant or pollutant property

Maximum for any 1 day

Maximum for monthly average

mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched

Chromium

0.85

0.35

Cyanide

0.56

0.23

Zinc

2.82

1.18

Aluminum

12.43

6.19
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Cite this article: FindLaw.com - Code of Federal Regulations Title 40. Protection of Environment § 40.467.33 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-40-protection-of-environment/cfr-sect-40-467-33/

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