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Title 40

Displaying title 40, up to date as of 9/03/2026. Title 40 was last amended 8/31/2026.
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Subpart E—Drawing With Neat Oils Subcategory

§ 467.50 Applicability; description of the drawing with neat oils subcategory.

This subpart applies to discharges of pollutants to waters of the United States and introductions of pollutants into publicly owned treatment works from the core of the drawing with neat oils subcategory and the ancillary operations.

§ 467.51 Specialized definitions.

For the purpose of this subpart:

(a) The “core” of the drawing with neat oils subcategory shall include drawing using neat oils, stationary casting, artificial aging, annealing, degreasing, sawing, and swaging.

(b) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the drawing operation. The ancillary operation shall include continuous rod casting, solution heat treatment, and cleaning or etching.

§ 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

Solution Heat Treatment 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 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]

§ 467.53 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

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. The discharge of wastewater pollutants from the core and ancillary operations shall not exceed the values set forth below:

Subpart E

Core

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils
Chromium 0.022 0.009
Cyanide 0.015 0.006
Zinc 0.073 0.031
Aluminum 0.321 0.16

Subpart E

Continuous Rod Casting Spent Lubricant

Pollutant or pollutant property BAT 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 0.0004
Cyanide 0.0006 0.0002
Zinc 0.0029 0.0012
Aluminum 0.0127 0.0063

Subpart E

Continuous Rod Casting Contact Cooling Water

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.086 0.035
Cyanide 0.056 0.024
Zinc 0.283 0.118
Aluminum 1.247 0.621

Subpart E

Solution Heat Treatment Contact Cooling Water

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum quenched
Chromium 0.896 0.367
Cyanide 0.591 0.245
Zinc 2.974 1.243
Aluminum 13.10 6.519

Subpart E

Cleaning or Etching Bath

Pollutant or pollutant property BAT 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 0.262 0.109
Aluminum 1.151 0.563

Subpart E

Cleaning or Etching Rinse

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.612 0.251
Cyanide 0.404 0.167
Zinc 2.031 0.849
Aluminum 8.944 4.451

Subpart E

Cleaning or Etching Scrubber Liquor

Pollutant or pollutant property BAT effluent limitations
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.851 0.348
Cyanide 0.561 0.232
Zinc 2.82 1.179
Aluminum 12.43 6.19

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

§ 467.54 New source performance standards.

Any new source subject to this subpart must achieve the following performance standards. The discharge of wastewater pollutants from the core and ancillary operations shall not exceed the values set forth below:

Subpart E

Core

Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils
Chromium 0.019 0.008
Cyanide 0.010 0.004
Zinc 0.051 0.021
Aluminum 0.304 0.135
Oil and grease 0.498 0.498
Suspended solids 0.747 0.598
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 NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.0008 0.0003
Cyanide 0.0004 0.0002
Zinc 0.002 0.0008
Aluminum 0.012 0.006
Oil and grease 0.02 0.02
Suspended solids 0.03 0.024
pH (1) (1)
1 Within the range of 7.0 to 10 at all times.

Subpart E

Continuous Rod Casting Contact Cooling Water

Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.072 0.029
Cyanide 0.039 0.016
Zinc 0.198 0.082
Aluminum 1.185 0.526
Oil and grease 1.939 1.939
Suspended solids 2.909 2.327
pH (1) (1)
1 Within the range of 7.0 to 10 at all times.

Subpart E

Solution Heat Treatment Contact Cooling Water

Pollutant or pollutant property NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum quenched
Chromium 0.754 0.306
Cyanide 0.408 0.163
Zinc 2.08 0.856
Aluminum 12.45 5.52
Oil and grease 20.37 20.37
Suspended solids 30.56 24.45
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 NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.066 0.027
Cyanide 0.036 0.015
Zinc 0.183 0.075
Aluminum 1.094 0.485
Oil and grease 1.79 1.79
Suspended solids 2.69 2.15
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 NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.515 0.209
Cyanide 0.278 0.111
Zinc 1.42 0.584
Aluminum 8.50 3.77
Oil and grease 13.91 13.91
Suspended solids 20.87 16.70
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 NSPS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.715 0.290
Cyanide 0.387 0.155
Zinc 1.97 0.812
Aluminum 11.81 5.24
Oil and grease 19.33 19.33
Suspended solids 29.00 23.20
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]

§ 467.55 Pretreatment standards for existing sources.

Except as provided in 40 CFR 403.7 and 403.13, 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 aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below:

Subpart E

Core

Pollutant or pollutant property PSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils
Chromium 0.022 0.009
Cyanide 0.015 0.006
Zinc 0.073 0.031
TTO 0.035
Oil and grease (alternate monitoring parameter) 2.6 1.3

Subpart E

Continuous Rod Casting Lubricant

Pollutant or pollutant property PSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.0009 0.0004
Cyanide 0.0006 0.0003
Zinc 0.0029 0.0012
TTO 0.0014
Oil and grease (alternate monitoring parameter) 0.10 0.052

Subpart E

Continuous Rod Casting Contact Cooling Water

Pollutant or pollutant property PSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.086 0.035
Cyanide 0.057 0.023
Zinc 0.283 0.118
TTO 0.133
Oil and grease (alternate monitoring parameter) 10 5.1

Subpart E

Solution Heat Treatment Contact Cooling Water

Pollutant or pollutant property PSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum quenched
Chromium 0.896 0.367
Cyanide 0.591 0.245
Zinc 2.98 1.24
TTO 1.41
Oil and grease (alternate monitoring parameter) 110 53

Subpart E

Cleaning or Etching Bath

Pollutant or pollutant property PSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.079 0.033
Cyanide 0.052 0.022
Zinc 0.262 0.109
TTO 0.124
Oil and grease (alternate monitoring parameter) 9.3 4.7

Subpart E

Cleaning or Etching Rinse

Pollutant or pollutant property PSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.612 0.251
Cyanide 0.404 0.17
Zinc 2.03 0.85
TTO 0.96
Oil and grease (alternate monitoring parameter) 73 36

Subpart E

Cleaning or Etching Scrubber Liquor

Pollutant or pollutant property PSES
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.851 0.348
Cyanide 0.561 0.232
Zinc 2.82 1.18
TTO 1.34
Oil and grease (alternate monitoring parameter) 100 50

[48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11635, Mar. 27, 1984, as amended at 53 FR 52369, Dec. 27, 1988]

§ 467.56 Pretreatment standards for new sources.

Except as provided in 40 CFR 403.7, any new 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 new sources.

The mass of wastewater pollutants in aluminum forming process wastewater introduced into a POTW shall not exceed the values set forth below:

Subpart E

Core

Pollutant or pollutant property PSNS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum drawn with neat oils
Chromium 0.019 0.008
Cyanide 0.010 0.004
Zinc 0.051 0.021
TTO 0.035
Oil and grease (alternate monitoring parameter) 0.50 0.50

Subpart E

Continuous Rod Casting Lubricant

Pollutant or pollutant property PSNS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.0007 0.0003
Cyanide 0.0004 0.0002
Zinc 0.0020 0.0008
TTO 0.0014
Oil and grease (alternate monitoring parameter) 0.020 0.020

Subpart E

Continuous Rod Casting Contact Cooling Water

Pollutant or pollutant property PSNS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum rod cast
Chromium 0.072 0.029
Cyanide 0.039 0.016
Zinc 0.198 0.134
TTO 0.082
Oil and grease (alternate monitoring parameter) 1.94 1.94

Subpart E

Solution Heat Treatment Contact Cooling Water

Pollutant or pollutant property PSNS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum quenched
Chromium 0.76 0.306
Cyanide 0.41 0.163
Zinc 2.08 0.856
TTO 1.41
Oil and grease (alternate monitoring parameter) 20.37 20.37

Subpart E

Cleaning or Etching Bath

Pollutant or pollutant property PSNS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.067 0.027
Cyanide 0.036 0.015
Zinc 0.183 0.075
TTO 0.124
Oil and grease (alternate monitoring parameter) 1.79 1.79

Subpart E

Cleaning or Etching Rinse

Pollutant or pollutant property PSNS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.52 0.21
Cyanide 0.28 0.11
Zinc 1.42 0.59
TTO 0.96
Oil and grease (alternate monitoring parameter) 13.91 13.91

Subpart E

Cleaning or Etching Scrubber Liquor

Pollutant or pollutant property PSNS
Maximum for any 1 day Maximum for monthly average
mg/off-kg (lb/million off-lbs) of aluminum cleaned or etched
Chromium 0.72 0.29
Cyanide 0.39 0.16
Zinc 1.97 0.812
TTO 1.34
Oil and grease (alternate monitoring parameter) 19.33 19.33

[48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633,,11635, Mar. 27, 1984]

§ 467.57 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]