40 CFR 421.113 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.

§ 421.113 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 K—Concentrate Digestion 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 concentrate digested
Lead .174 .081
Zinc .635 .261
Ammonia (as N) 82.910 36.450
Fluoride 21.770 12.440
(b) Subpart K—Solvent Extraction Raffinate.
BAT Effluent Limitations
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/Kg (pounds per million pounds) of concentrate digested
Lead 2.592 1.203
Zinc 9.442 3.888
Ammonia (as N) 1,233.000 542.5000
Fluoride 324.000 185.100
(c) Subpart K—Solvent Extraction 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 concentrate digested
Lead .069 .032
Zinc .251 .103
Ammonia (as N) 32.790 14.420
Fluoride 8.610 4.920
(d) Subpart K—Precipitation and Filtration.
BAT Effluent Limitations
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of concentrate digested
Lead 3.833 1.780
Zinc 13.960 5.750
Ammonia (as N) 1,825.000 802.200
Fluoride 479.100 273.800
(e) Subpart K—Precipitation and Filtration 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 concentrate digested
Lead 1.778 .826
Zinc 6.478 2.668
Ammonia (as N) 846.600 372.200
Fluoride 222.300 127.000
(f) Subpart K—Tantalum Salt Drying.
BAT Effluent Limitations
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tantalum salt dried
Lead 16.950 7.871
Zinc 61.750 25.430
Ammonia (as N) 8,070.000 3,548.000
Fluoride 2,119.000 1,211.000
(g) Subpart K—Oxides Calcining 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 columbium-tantalum oxide
Lead 1.076 .500
Zinc 3.919 1.614
Ammonia (as N) 512.200 225.200
Fluoride 134.500 76.840
(h) Subpart K—Reduction of Tantalum Salt to Metal.
BAT Effluent Limitations
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tantalum salt reduced
Lead 46.500 21.590
Zinc 169.400 69.750
Ammonia (as N) 22,140.000 9,732.000
Fluoride 5,813.000 3,322.000
(i) Subpart K—Reduction of Tantalum Salt to Metal 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 tantalum salt reduced
Lead .572 .266
Zinc 2.084 .858
Fluoride 71.510 40.860
(j) Subpart K—Tantalum Powder Wash.
BAT Effluent Limitations
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of tantalum powder washed
Lead 5.721 2.656
Zinc 20.840 8.582
Ammonia (as N) 2,724.000 1,198.000
Fluoride 715.200 408.700
(k) Subpart K—Consolidation and Casting Contact Cooling.
BAT Effluent Limitations
Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average
mg/kg (pounds per million pounds) of columbium or tantalum cast or consolidated
Lead .000 .000
Zinc .000 .000
Ammonia (as N) .000 .000
Fluoride .000 .000
[49 FR 8817, Mar. 8, 1984, as amended at 50 FR 12253, Mar. 28, 1985]

Title 40 published on 2014-07-01

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