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 limitation representing the degree of effluent reduction attainable by the application of the best practicable technology currently available:
(a) Molybdenum sulfide leachate.
BPT Limitations for the Primary Molybdenum Rhenium Subcategory------------------------------------------------------------------------
Maximum
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
molybdenum sulfide
leached
--------------Arsenic....................................... 0.968 0.431Lead.......................................... 0.195 0.093Nickle........................................ 0.889 0.588Selenium...................................... 0.570 0.255Molybdenum.................................... [Reserved] [Reserved].Ammonia (as N)................................ 61.720 27.130Fluoride...................................... 16.210 9.214Total suspended solids........................ 18.980 9.029pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(b) Roaster SO2 scrubber.
BPT Limitations for the Primary Molybdenum and Rhenium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant of pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
molybdenum sulfide
roasted
--------------Arsenic....................................... 3.509 1.561Lead.......................................... 0.705 0.336Nickel........................................ 3.224 2.133Selenium...................................... 2.065 0.924Molybdenum.................................... [Reserved] [Reserved].Ammonia (as N)................................ 223.800 98.390Fluoride...................................... 58.770 33.410Total suspended solids........................ 68.840 32.740pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(c) Molybdic oxide leachate.
BPT Limitations for the Primary Molybdenum and Rhenium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
molybdenum contained in
molybdic oxide leached
--------------Arsenic....................................... 24.210 10.770Lead.......................................... 4.865 2.317Nickel........................................ 22.240 14.710Selenium...................................... 14.250 6.371Molybdenum.................................... [Reserved] [Reserved]Ammonia (as N)................................ 1,544.000 678.800Fluoride...................................... 405.400 230.500Total suspended solids........................ 474.900 225.900pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(d) Hydrogen reduction furnace scrubber.
BPT Limitations for the Primary Molybdenum and Rhenium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
molybdenum metal powder
produced
--------------Arsenic....................................... 47.860 21.300Lead.......................................... 9.617 4.580Nickel........................................ 43.970 29.080Selenium...................................... 28.170 12.600Molybdenum.................................... [Reserved] [Reserved]Ammonia (as N)................................ 3,052.000 1,342.000Fluoride...................................... 801.400 455.700Total suspended solids........................ 938.800 446.500pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times.
(e) Depleted rhenium scrubbing solution.
BPT Limitations for the Primary Molybdenum and Rhenium Subcategory------------------------------------------------------------------------
Maximum for
Pollutant or pollutant property Maximum for monthly
any 1 day average------------------------------------------------------------------------
mg/kg (pounds per
million pounds) of
molybdenum sulfide
roasted
--------------Arsenic....................................... 1.497 0.666Lead.......................................... 0.301 0.143Nickel........................................ 1.375 0.909Selenium...................................... 0.881 0.394Molybdenum.................................... [Reserved] [Reserved]Ammonia (as N)................................ 95.440 41.960Fluoride...................................... 25.060 14.250Total suspended solids........................ 29.360 13.960pH............................................ (\1\) (\1\)------------------------------------------------------------------------\1\ Within the range of 7.5 to 10.0 at all times. [50 FR 38355, Sept. 20, 1985, as amended at 55 FR 31701, Aug. 3, 1990]