Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the 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 shall achieve the following effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable technology currently available: (a) Subpart J—Tungstic Acid Rinse. BPT 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 17.230 8.205 Zinc 59.900 25.030 Ammonia (as N) 5,469.000 2,404.00 Total suspended solids 1,682.000 800.000 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (b) Subpart J—Acid Leach Wet Air Pollution Control. BPT 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 15.040 7.162 Zinc 52.280 21.840 Ammonia (as N) 4,773.000 2,098.000 Total suspended solids 1,468.000 698.300 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (c) Subpart J—Alkali Leach Wash. BPT 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 Total suspended solids 0.000 0.000 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (d) Subpart J—Alkali Leach Wash Condensate. BPT 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 8.057 3.837 Zinc 28.011 11.700 Ammonia (as N) 2,557.000 1,124.000 Total suspended solids 786.200 374.100 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (e) Subpart J—Ion Exchange Raffinate (Commingled With Other Process or Nonprocess Waters). BPT 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 37.160 17.700 Zinc 129.200 53.970 Ammonia (as N) 11,790.000 5,185.000 Total Suspended solids 3,627.000 1,726.000 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (f) Subpart J—Ion Exchange Raffinate (Not Commingled With Other Process or Nonprocess Waters). BPT 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 37.160 17.700 Zinc 129.200 53.970 Ammonia (as N) ( 2 ) 11,790.000 5,185.000 Total suspended solids 3,627.000 1,726.000 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. 2 The effluent limitation guideline for this pollutant does not apply if (a) the mother liquor feed to the ion exchange process or the raffinate from the ion exchange process contains sulfates at concentrations exceeding 1000 mg/l; (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. BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of calcium tungstate (as W) produced Lead 31.000 14.760 Zinc 107.800 45.020 Ammonia (as N) 9,838.000 4,325.000 Total suspended solids 3,026.000 1,439.000 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (h) Subpart J—Crystallization and Drying of Ammonium Paratungstate. BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 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 Total suspended solids 0.000 0.000 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (i) Subpart J—Ammonium Paratungstate Conversion to Oxides Wet Air Pollution Control. BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tungstic oxide (as W) produced Lead 11.600 5.523 Zinc 40.320 16.850 Ammonia (as N) 3,681.000 1,618.000 Total suspended solids 1,132.000 538.500 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (j) Subpart J—Ammonium Paratungstate Conversion to Oxides Water of Formation. BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of tungstic oxide (as W) produced Lead 0.026 0.013 Zinc 0.092 0.038 Ammonia (as N) 8.398 3.692 Total suspended solids 2.583 1.229 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (k) Subpart J—Reduction to Tungsten Wet Air Pollution Control. BPT 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 12.940 6.161 Zinc 44.970 18.790 Ammonia (as N) 4,106.000 1,805.000 Total suspended solids 1,263.000 600.700 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (l) Subpart J—Reduction to Tungsten Water of Formation. BPT 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 .205 .098 Zinc .714 .298 Ammonia (as N) 65.190 28.660 Total suspended solids 20.050 9.536 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (m) Subpart J—Tungsten Powder Acid Leach and Wash. BPT 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 1.008 0.48 Zinc 3.504 1.464 Ammonia (as N) 319.900 140.700 Total suspended solids 98.400 46.800 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. (n) Subpart J—Molybdenum Sulfide Precipitation Wet Air Pollution Control. BPT 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 .000 .000 Zinc .000 .000 Ammonia (as N) .000 .000 Total suspended solids .000 .000 pH ( 1 ) ( 1 ) 1 Within the range of 7.0 to 10.0 at all times. [49 FR 8812, Mar. 8, 1984, as amended at 53 FR 1706, Jan. 21, 1988]