Effluent limitations guidelines 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 shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best available technology economically achievable: (a) Subpart J—Tungstic Acid Rinse. BAT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tungstic acid (as W) produced Lead 11.490 5.333 Zinc 41.850 17.230 Ammonia (as N) 5,469.000 2,404.000 (b) Subpart J—Acid Leach Wet Air Pollution Control. BAT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tungstic acid (as W) produced Lead 1.003 0.466 Zinc 3.653 1.504 Ammonia (as N) 477.400 209.900 (c) Subpart J—Alkali Leach Wash. BAT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of sodium tungstate (as W) produced Lead 0.000 0.000 Zinc 0.000 0.000 Ammonia (as N) 0.000 0.000 (d) Subpart J—Alkali Leach Wash Condensate. BAT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of sodium tungstate (as W) produced Lead 5.372 2.494 Zinc 19.570 8.057 Ammonia (as N) 2,557.000 1,124.000 (e) Subpart J—Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters). BAT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of ammonium tungstate (as W) produced Lead 24.780 11.500 Zinc 90.240 37.160 Ammonia (as N) 11,790.000 5,185.000 (f) Subpart J—Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters). BAT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of ammonium tungstate (as W) produced Lead 24.780 11.500 Zinc 90.240 37.160 Ammonia (as N) 1 11,790.000 5,185.000 1 The effluent limitation for this pollutant does not apply if a) the motor liquor feed to the ion exchange process or the raffinate from the ion exchange process contains sulfates at concentrations exceeding 1000 mg/1; b) this mother liquor or raffinate is treated by ammonia steam stripping; and c) such mother liquor or raffinate is not commingled with any other process or nonprocess waters prior to steam stripping for ammonia removal. (g) Subpart J—Calcium Tungstate Precipitate Wash. BAT Effluent Limitations Pollutant or pollutant property Maximum for any one day Maximum for monthly average mg/kg (pounds per/million pounds) of calcium tungstate (as W) produced Lead 20.670 9.594 Zinc 75.280 31.000 Ammonia (as N) 9,838.000 4,325.000 (h) Subpart J—Crystallization and Drying of Ammonium Paratungstate. BAT Effluent Limitations Pollutant or pollutant property Maximum for any one day Maximum for monthly average mg/kg (pounds per/million pounds) of ammonium paratungstate (as W) produced Lead 0.000 0.000 Zinc 0.000 0.000 Ammonia (as N) 0.000 0.000 (i) Subpart J—Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control. BAT Effluent Limitations Pollutant or pollutant property Maximum for any one day Maximum for monthly average mg/kg (pounds per/million pounds) of tungstic oxide (as W) produced Lead 0.773 0.359 Zinc 2.817 1.160 Ammonia (as N) 368.200 161.900 (j) Subpart J—Ammonium Paratungstate Conversion to Oxides Water of Formation. BAT Effluent Limitations Pollutant or pollutant property Maximum for any one day Maximum for monthly average mg/kg (pounds per/million pounds) of tungstic oxide (as W) produced Lead 0.018 0.008 Zinc 0.064 0.026 Ammonia (as N) 8.398 3.692 (k) Subpart J—Reduction to Tungsten Wet Air Pollution Control. BAT Effluent Limitations Pollutant or pollutant property Maximum for any one day Maximum for monthly average mg/kg (pounds per/million pounds) of tungsten metal produced Lead 0.862 0.400 Zinc 3.142 1.294 Ammonia (as N) 410.600 180.500 (l) Subpart J—Reduction to Tungsten Water of Formation. BAT Effluent Limitations Pollutant or pollutant property Maximum for any one day Maximum for monthly average mg/kg (pounds per/million pounds) of tungsten metal produced Lead 0.137 0.064 Zinc 0.499 0.205 Ammonia (as N) 65.190 28.660 (m) Subpart J—Tungsten Powder Acid Leach and Wash. BAT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tungsten metal produced Lead 0.672 0.312 Zinc 2.448 1.008 Ammonia (as N) 319.900 140.700 (n) Subpart J—Molybdenum Sulfide Precipitation Wet Air Pollution Control. BAT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tungsten metal produced Lead 0.000 0.000 Zinc 0.000 0.000 Ammonia (as N) 0.000 0.000 [49 FR 8812, Mar. 8, 1984, as amended at 53 FR 1708, Jan. 21, 1988]