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 M—Battery Cracking BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead scrap produced Antimony 1.932 .862 Arsenic 1.407 .579 Lead .283 .135 Zinc .983 .411 Ammonia (as N) .000 .000 Total suspended solids 27.600 13.130 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (b) Subpart M—Blast, Reverberatory, or Rotary Furnace 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 lead produced from smelting Antimony 7.491 3.341 Arsenic 5.455 2.245 Lead 1.096 .522 Zinc 3.811 1.592 Ammonia (as N) .000 .000 Total suspended solids 107.000 50.900 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (c) Subpart M—Kettle 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 lead produced from refining Antimony .129 .058 Arsenic .094 .039 Lead .019 .009 Zinc .066 .027 Ammonia (as N) .000 .000 Total suspended solids 1.845 .878 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (d) Subpart M—Lead Paste Desulfurization BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead processed through desulfurization Antimony .000 .000 Arsenic .000 .000 Lead .000 .000 Zinc .000 .000 Ammonia (as N) .000 .000 Total suspended solids .000 .000 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (e) Subpart M—Casting Contact Cooling BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead cast Antimony .634 .283 Arsenic .462 .190 Lead .093 .044 Zinc .323 .135 Ammonia (as N) .000 .000 Total suspended solids 9.061 4.310 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (f) Subpart M—Truck Wash. BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead produced from smelting Antimony .060 .027 Arsenic .044 .018 Lead .009 .004 Zinc .031 .013 Ammonia (as N) .000 .000 Total suspended solids .861 .410 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (g) Subpart M—Facility Washdown BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead produced from smelting Antimony .000 .000 Arsenic .000 .000 Lead .000 .000 Zinc .000 .000 Ammonia (as N) .000 .000 Total suspended solids .000 .000 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (h) Subpart M—Battery Case Classification. BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead scrap produced Antimony .000 .000 Arsenic .000 .000 Lead .000 .000 Zinc .000 .000 Ammonia (as N) .000 .000 Total suspended solids .000 .000 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (i) Subpart M—Employee Handwash. BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead produced from smelting Antimony .077 .035 Arsenic .056 .023 Lead .011 .005 Zinc .039 .016 Ammonia (as N) .000 .000 Total suspended solids 1.107 .527 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (j) Subpart M—Employee Respirator Wash. BPT Effulent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead produced from smelting Antimony .126 .056 Arsenic .092 .038 Lead .018 .009 Zinc .064 .027 Ammonia (as N) .000 .000 Total suspended solids 1.804 .858 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (k) Subpart M—Laundering of Uniforms. BPT Effluent Limitations Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of lead produced from smelting Antimony .367 .164 Arsenic .268 .110 Lead .054 .026 Zinc .187 .078 Ammonia (as N) .000 .000 Total suspended solids 5.248 2.496 pH ( 1 ) ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. [49 FR 8826, Mar. 8, 1984, as amended at 49 FR 29795, July 24, 1984]