[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR467.62] [Page 650-652] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 467--ALUMINUM FORMING POINT SOURCE CATEGORY--Table of Contents Subpart F--Drawing With Emulsions or Soaps Subcategory Sec. 467.62 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 control technology currently available: [[Page 651]] Subpart F 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 drawn with emulsions or soaps --------------- Chromium.................................... 0.205 0.084 Cyanide..................................... 0.135 0.056 Zinc........................................ 0.680 0.285 Aluminum.................................... 3.00 1.50 Oil and grease.............................. 9.33 5.60 Suspended solids............................ 19.12 9.10 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\Within the range of 7.0 to 10 at all times. Subpart F Continuous Rod Casting Spent Lubricant ------------------------------------------------------------------------ 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.................................... 0.0009 0.0004 Cyanide..................................... 0.0006 0.0003 Zinc........................................ 0.0029 0.001 Aluminum.................................... 0.013 0.007 Oil and grease.............................. 0.040 0.024 Suspended solids............................ 0.081 0.039 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\Within the range of 7.0 to 10 at all times. Subpart F Continuous Rod 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.................................... 0.684 0.28 Cyanide..................................... 0.450 0.187 Zinc........................................ 2.27 0.949 Aluminum.................................... 10.00 4.976 Oil and grease.............................. 31.10 18.66 Suspended solids............................ 63.76 30.323 pH.......................................... (\1\) (\1\) ------------------------------------------------------------------------ \1\Within the range of 7.0 to 10 at all times. Subpart F 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 at all times. Subpart F 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........................................ 0.262 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 at all times. Subpart F 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 44.519 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. [[Page 652]] Subpart F 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 at all times. [48 FR 49149, Oct. 24, 1983; 49 FR 11633 and 11635, Mar. 27, 1984]