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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungstic acid (as W)
produced
--------------Lead.......................................... 17.230 8.205Zinc.......................................... 59.900 25.030Ammonia (as N)................................ 5,469.000 2,404.00Total suspended solids........................ 1,682.000 800.000pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungstic acid (as W)
produced
--------------Lead.......................................... 15.040 7.162Zinc.......................................... 52.280 21.840Ammonia (as N)................................ 4,773.000 2,098.000Total suspended solids........................ 1,468.000 698.300pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.0 to 10.0 at all times.
(c) Subpart J--Alkali Leach Wash.
BPT Effluent Limitations------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
sodium tungstate (as W)
produced
--------------Lead.......................................... 0.000 0.000Zinc.......................................... 0.000 0.000Ammonia (as N)................................ 0.000 0.000Total suspended solids........................ 0.000 0.000pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
sodium tungstate (as W)
produced
--------------Lead.......................................... 8.057 3.837Zinc.......................................... 28.011 11.700Ammonia (as N)................................ 2,557.000 1,124.000Total suspended solids........................ 786.200 374.100pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
ammonium tungstate (as
W) produced
--------------Lead.......................................... 37.160 17.700Zinc.......................................... 129.200 53.970Ammonia (as N)................................ 11,790.000 5,185.000Total Suspended solids........................ 3,627.000 1,726.000pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
ammonium tungstate (as
W) produced
--------------Lead.......................................... 37.160 17.700Zinc.......................................... 129.200 53.970Ammonia (as N) (\2\).......................... 11,790.000 5,185.000Total suspended solids........................ 3,627.000 1,726.000pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
calcium tungstate (as W)
produced
--------------Lead.......................................... 31.000 14.760Zinc.......................................... 107.800 45.020Ammonia (as N)................................ 9,838.000 4,325.000Total suspended solids........................ 3,026.000 1,439.000pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
ammonium paratungstate
(as W) produced
--------------Lead.......................................... 0.000 0.000Zinc.......................................... 0.000 0.000Ammonia (as N)................................ 0.000 0.000Total suspended solids........................ 0.000 0.000pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungstic oxide (as W)
produced
--------------Lead.......................................... 11.600 5.523Zinc.......................................... 40.320 16.850Ammonia (as N)................................ 3,681.000 1,618.000Total suspended solids........................ 1,132.000 538.500pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungstic oxide (as W)
produced
--------------Lead.......................................... 0.026 0.013Zinc.......................................... 0.092 0.038Ammonia (as N)................................ 8.398 3.692Total suspended solids........................ 2.583 1.229pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten metal produced
--------------Lead.......................................... 12.940 6.161Zinc.......................................... 44.970 18.790Ammonia (as N)................................ 4,106.000 1,805.000Total suspended solids........................ 1,263.000 600.700pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten metal produced
--------------Lead.......................................... .205 .098Zinc.......................................... .714 .298Ammonia (as N)................................ 65.190 28.660Total suspended solids........................ 20.050 9.536pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten metal produced
--------------Lead.......................................... 1.008 0.48Zinc.......................................... 3.504 1.464Ammonia (as N)................................ 319.900 140.700Total suspended solids........................ 98.400 46.800pH............................................ (\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------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
tungsten metal produced
--------------Lead.......................................... .000 .000Zinc.......................................... .000 .000Ammonia (as N)................................ .000 .000Total suspended solids........................ .000 .000pH............................................ (\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]