40 CFR § 467.52 - Effluent limitations representing the degree of effluent reduction attainable by the application of best practicable control technology currently available.

§ 467.52 Effluent limitations representing the degree of effluent reduction attainable by the application of best practicable control technology currently available.

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 practicable technology currently available:

Subpart E
Core
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/per million off-lbs) of aluminum drawn with neat oils
Chromium 0.022 0.0090
Cyanide 0.015 0.0050
Zinc 0.073 0.031
Aluminum 0.32 0.160
Oil and grease 0.97 0.598
Suspended solids 2.04 0.972
pH ( 1) ( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart E
Continuous Rod Casting Spent Lubricant
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.00086 0.00035
Cyanide 0.00057 0.00024
Zinc 0.00287 0.0012
Aluminum 0.0127 0.0063
Oil and grease 0.0393 0.0236
Suspended solids 0.0805 0.0383
pH ( 1) ( 1)

1 Within the range of 7.0 to 10.0 at all times.

Subpart E
Continuous Rod Casting Contact Cooling Water
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.684 0.28
Cyanide 0.451 0.187
Zinc 2.271 0.949
Aluminum 10.00 4.976
Oil and grease 31.10 18.66
Suspended solids 63.76 30.322
pH ( 1) ( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart E
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum quenched
Chromium 3.39 1.39
Cyanide 2.24 0.93
Zinc 11.25 4.70
Aluminum 49.55 24.66
Oil and grease 154.10 92.46
Suspended solids 315.91 150.25
pH ( 1) ( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart E
Cleaning or Etching Bath
Pollutant or pollutant property BPT effluent limitations
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 0.26 0.11
Aluminum 1.150 0.57
Oil and grease 3.58 2.15
Suspended solids 7.34 3.49
pH ( 1) ( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart E
Cleaning or Etching Rinse
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 6.12 2.51
Cyanide 4.04 1.67
Zinc 20.31 8.49
Aluminum 89.46 44.52
Oil and grease 278.24 166.95
Suspended solids 570.39 271.29
pH ( 1) ( 1)

1 Within the range of 7.0 to 10 at all times.

Subpart E
Cleaning or Etching Scrubber Liquor
Pollutant or pollutant property BPT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 7.00 2.86
Cyanide 4.61 1.91
Zinc 23.22 9.70
Aluminum 102.24 50.88
Oil and grease 318.00 190.8
Suspended solids 651.90 310.05
pH ( 1) ( 1)

1 Within the range of 7.0 to 10 at all times.

[48 FR 49149, Oct. 24, 1983; 49 FR 11633, 11635, Mar. 27, 1984]

The following state regulations pages link to this page.