Loading (50 kb)...'
(continued)
quenched
---------------------------
Chromium.................................... 0.90 0.37
Cyanide..................................... 0.59 0.25
Zinc........................................ 2.98 1.25
TTO......................................... 1.41 ............
Oil and grease (alternate monitoring 110 53
parameter).................................
------------------------------------------------------------------------
Subpart B
Cleaning or Etching Bath
------------------------------------------------------------------------
PSES
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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
TTO......................................... 0.124 ............
Oil and grease (alternate monitoring 9.3 4.7
parameter).................................
------------------------------------------------------------------------
Subpart B
Cleaning or Etching Rinse
------------------------------------------------------------------------
PSES
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
cleaned or
etched
---------------------------
Chromium.................................... 0.61 0.25
Cyanide..................................... 0.41 0.17
Zinc........................................ 2.03 0.85
TTO......................................... 0.96 ............
Oil and grease (alternate monitoring 73 36
parameter).................................
------------------------------------------------------------------------
Subpart B
Cleaning or Etching Scrubber Liquor
------------------------------------------------------------------------
PSES
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
cleaned or
etched
---------------------------
Chromium.................................... 0.85 0.35
Cyanide..................................... 0.56 0.23
Zinc........................................ 2.83 1.18
TTO......................................... 1.34 ............
Oil and grease (alternate monitoring 100 50
parameter).................................
------------------------------------------------------------------------
[48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11632, and 11633, Mar. 27, 1984, as amended at 53 FR 52369 and 52370, Dec. 27, 1988]
§ 467.26 Pretreatment standards for new sources.
top
Except as provided in §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 process wastewater pollutants from the core and ancillary operations introduced into a POTW shall not exceed the values set forth below:
Subpart B
Core
------------------------------------------------------------------------
PSNS
-----------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg (lb/
million off-
lbs) of
aluminum
rolled with
emulsions
-----------------------------
Chromium.................................. 0.048 0.020
Cyanide................................... 0.026 0.011
Zinc...................................... 0.133 0.055
TTO....................................... 0.090 .............
Oil and grease (alternate monitoring 1.30 1.30
parameter)...............................
------------------------------------------------------------------------
Subpart B
Direct Chill Casting Contact Cooling Water
------------------------------------------------------------------------
PSNS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
cast by
semicontinuo
us methods
---------------------------
Chromium.................................... 0.49 0.20
Cyanide..................................... 0.27 0.11
Zinc........................................ 1.36 0.56
TTO......................................... 0.92 ............
Oil and grease (alternate monitoring 13.29 13.29
parameter).................................
------------------------------------------------------------------------
Subpart B
Solution Heat Treatment Contact Cooling Water
------------------------------------------------------------------------
PSNS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
quenched
---------------------------
Chromium.................................... 0.76 0.31
Cyanide..................................... 0.41 0.17
Zinc........................................ 2.08 0.86
TTO......................................... 1.41 ............
Oil and grease (alternate monitoring 20.37 20.37
parameter).................................
------------------------------------------------------------------------
Subpart B
Cleaning or Etching Bath
------------------------------------------------------------------------
PSNS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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 1.79 1.79
parameter).................................
------------------------------------------------------------------------
Subpart B
Cleaning or Etching Rinse
------------------------------------------------------------------------
PSNS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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 13.91 13.91
parameter).................................
------------------------------------------------------------------------
Subpart B
Cleaning or Etching Scrubber Liquor
------------------------------------------------------------------------
PSNS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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 0.81
TTO......................................... 1.34 ............
Oil and grease (alternate monitoring 19.33 19.33
parameter).................................
------------------------------------------------------------------------
[48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11632, Mar. 27, 1984]
§ 467.27 Effluent limitations representing the degree of effluent reduction attainable by the application of the best conventional pollutant control technology. [Reserved]
top
Subpart C—Extrusion Subcategory
top
§ 467.30 Applicability; description of the extrusion subcategory.
top
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 and the ancillary operations of the extrusion subcategory.
§ 467.31 Specialized definitions.
top
For the purpose of this subpart:
(a) The “core” of the extrusion subcategory shall include extrusion die cleaning, dummy block cooling, stationary casting, artificial aging, annealing, degreasing, and sawing.
(b) The term “extrusion die cleaning” shall mean the process by which the steel dies used in extrusion of aluminum are cleaned. The term includes a dip into a concentrated caustic bath to dissolve the aluminum followed by a water rinse. It also includes the use of a wet scrubber with the die cleaning operation.
(c) The term “ancillary operation” shall mean any operation not previously included in the core, performed on-site, following or preceding the extrusion operation. The ancillary operations shall include direct chill casting, press or solution heat treatment, cleaning or etching, degassing, and extrusion press hydraulic fluid leakage.
§ 467.32 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
top
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 control technology currently available:
Subpart C
Core
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
extruded
---------------------------
Chromium.................................... 0.16 0.066
Cyanide..................................... 0.11 0.044
Zinc........................................ 0.53 0.22
Aluminum.................................... 2.34 1.16
Oil and grease.............................. 7.32 4.39
Suspended solids............................ 15.0 7.13
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
Subpart C
Extrusion Press Leakage
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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
Oil and grease.............................. 29.56 17.74
Suspended solids............................ 60.60 28.82
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ With the range of 7.0 to 10.0 at all times.
Subpart C
Direct Chill Casting Contact Cooling Water
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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
Oil and grease.............................. 26.58 15.95
Suspended solids............................ 54.49 25.92
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ The pH shall be maintained within the range of 7.0 to 10.0 at all
times except for those situations when this waste stream is discharged
separately and without commingling with any other wastewater in which
case the pH shall be within the range of 6.0 to 10.0 at all times.
Subpart C
Press Heat Treatment Contact Cooling Water
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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 10.0 at all times.
Subpart C
Solution Heat Treatment Contact Cooling Water
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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 10.0 at all times.
Subpart C
Cleaning or Etching Bath
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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 0.109
Aluminum.................................... 1.15 0.573
Oil and grease.............................. 3.58 2.15
Suspended solids............................ 7.34 3.49
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
Subpart C
Cleaning or Etching Rinse
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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 10.0 at all times.
Subpart C
Cleaning or Etching Scrubber Liquor
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day 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.............................. 318.00 190.80
Suspended solids............................ 651.90 310.05
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
Subpart C
Degassing Scrubber Liquor
------------------------------------------------------------------------
BPT effluent limitations
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
degassed
---------------------------
Chromium.................................... 1.15 0.47
Cyanide..................................... 0.76 0.32
Zinc........................................ 3.81 1.59
Aluminum.................................... 16.78 8.35
Oil and grease.............................. 52.18 31.31
Suspended solids............................ 106.97 50.88
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
[48 FR 49149, Oct. 24, 1983; 49 FR 11631 and 11633, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988]
§ 467.33 Effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
top
(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
Maximum for monthly
any 1 day 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
Maximum for monthly
any 1 day 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
Maximum for monthly
any 1 day 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
Maximum for monthly
any 1 day 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
Maximum for monthly
any 1 day 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
Maximum for monthly
any 1 day 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
Maximum for monthly
any 1 day 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
Maximum for monthly
any 1 day 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
------------------------------------------------------------------------
[48 FR 49149, Oct. 24, 1983; 49 FR 11631, 11633, and 11634, Mar. 27, 1984, as amended at 53 FR 52370, Dec. 27, 1988]
§ 467.34 New source performance standards.
top
Any new source subject to this subpart must achieve the following performance standards.
(a) There shall be no discharge allowance for wastewater pollutants from the degassing operation.
(b) The discharge of wastewater pollutants from the core and ancillary operations except those listed in paragraph (a) shall not exceed the values set forth below:
Subpart C
Core
------------------------------------------------------------------------
NSPS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
extruded
---------------------------
Chromium.................................... 0.13 0.051
Cyanide..................................... 0.068 0.027
Zinc........................................ 0.35 0.14
Aluminum.................................... 2.07 0.92
Oil and grease.............................. 3.39 3.39
Suspended solids............................ 5.10 4.07
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
Subpart C
Extrusion Press Leakage
------------------------------------------------------------------------
NSPS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
extruded
---------------------------
Chromium.................................... 0.11 0.045
Cyanide..................................... 0.060 0.024
Zinc........................................ 0.31 0.126
Aluminum.................................... 1.82 0.81
Oil and grease.............................. 2.98 2.98
Suspended solids............................ 4.47 3.58
pH.......................................... (\1\) (\1\)
------------------------------------------------------------------------
\1\ Within the range of 7.0 to 10.0 at all times.
Subpart C
Direct Chill Casting Contact Cooling Water
------------------------------------------------------------------------
NSPS
-------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
cast by
semicontinu
ous methods
-------------------------
Chromium...................................... 0.49 0.20
Cyanide....................................... 0.27 0.11
Zinc.......................................... 1.36 0.56
Aluminum...................................... 8.12 3.60
Oil and grease................................ 13.29 13.29
Suspended solids.............................. 19.94 15.95
pH............................................ (\1\) (\1\)
------------------------------------------------------------------------
\1\ The pH shall be maintained within the range of 7.0 to 10.0 at all
times except for those situations when this waste stream is discharged
separately and without commingling with any other wastewater in which
case the pH shall be within the range of 6.0 to 10.0 at all times.
Subpart C
Press Heat Treatment Contact Cooling Water
------------------------------------------------------------------------
NSPS
-------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
quenched
-------------------------
Chromium...................................... 0.76 0.31
Cyanide....................................... 0.41 0.17
Zinc.......................................... 2.08 0.86
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 10.0 at all times.
Subpart C
Solution Heat Treatment Contact Cooling Water
------------------------------------------------------------------------
NSPS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average
------------------------------------------------------------------------
mg/off-kg
(lb/million
off-lbs) of
aluminum
quenched
---------------------------
Chromium.................................... 0.76 0.31
Cyanide..................................... 0.41 0.17
Zinc........................................ 2.08 0.86
Aluminum.................................... 12.45 5.52
Oil and grease.............................. 20.37 20.37
Suspended solids............................ 30.56 24.45 (continued)