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 ------------------------------------------------------------------------
NSPS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (lb/million off-
lbs) of aluminum drawn
with neat oils
---------------------------Chromium.................................... 0.019 0.008Cyanide..................................... 0.010 0.004Zinc........................................ 0.051 0.021Aluminum.................................... 0.304 0.135Oil and grease.............................. 0.498 0.498Suspended solids............................ 0.747 0.598pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10 at all times.
Subpart E
Continuous Rod Casting Spent Lubricant ------------------------------------------------------------------------
NSPS
---------------------------
Pollutant or pollutant property Maximum for
Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/off-kg (lb/million off-
lbs) of aluminum rod cast
---------------------------Chromium.................................... 0.0008 0.0003Cyanide..................................... 0.0004 0.0002Zinc........................................ 0.002 0.0008Aluminum.................................... 0.012 0.006Oil and grease.............................. 0.02 0.02Suspended solids............................ 0.03 0.024pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10 at all times.
Subpart E
Continuous Rod 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 rod
cast
-------------------------Chromium...................................... 0.072 0.029Cyanide....................................... 0.039 0.016Zinc.......................................... 0.198 0.082Aluminum...................................... 1.185 0.526Oil and grease................................ 1.939 1.939Suspended solids.............................. 2.909 2.327pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10 at all times.
Subpart E
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.................................... 0.754 0.306Cyanide..................................... 0.408 0.163Zinc........................................ 2.08 0.856Aluminum.................................... 12.45 5.52Oil and grease.............................. 20.37 20.37Suspended solids............................ 30.56 24.45pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10 at all times.
Subpart E
Cleaning or Etching Bath ------------------------------------------------------------------------
NSPS
---------------------------
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.................................... 0.066 0.027Cyanide..................................... 0.036 0.015Zinc........................................ 0.183 0.075Aluminum.................................... 1.094 0.485Oil and grease.............................. 1.79 1.79Suspended solids............................ 2.69 2.15pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10 at all times.
Subpart E
Cleaning or Etching Rinse ------------------------------------------------------------------------
NSPS
---------------------------
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.................................... 0.515 0.209Cyanide..................................... 0.278 0.111Zinc........................................ 1.42 0.584Aluminum.................................... 8.50 3.77Oil and grease.............................. 13.91 13.91Suspended solids............................ 20.87 16.70pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10 at all times.
Subpart E
Cleaning or Etching Scrubber Liquor ------------------------------------------------------------------------
NSPS
---------------------------
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.................................... 0.715 0.290Cyanide..................................... 0.387 0.155Zinc........................................ 1.97 0.812Aluminum.................................... 11.81 5.24Oil and grease.............................. 19.33 19.33Suspended solids............................ 29.00 23.20pH.......................................... (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11635, Mar. 27, 1984]