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
Pollutant or
pollutant property
PSNS
Maximum for any 1 day
Maximum for monthly
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 parameter)
1.30
1.30
Subpart B Direct Chill 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 cast by semicontinuous
methods
Chromium
0.49
0.20
Cyanide
0.27
0.11
Zinc
1.36
0.56
TTO
0.92
Oil and grease
(alternate monitoring parameter)
13.29
13.29
Subpart B 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
0.31
Cyanide
0.41
0.17
Zinc
2.08
0.86
TTO
1.41
Oil and grease
(alternate monitoring parameter)
20.37
20.37
Subpart B 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 B 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 B 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