40 C.F.R. § 421.216

Pretreatment standards for new sources.

Last amended: 2016Year: 2026Length: 369 wordsOfficial source

Cite as 40 C.F.R. § 421.216 (2026)

Except as provided in 40 CFR 403.7, any new source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and achieve the following pretreatment standards for new sources. The mass of wastewater pollutants in primary molybdenum and rhenium process wastewater introduced into a POTW shall not exceed the following values: (a) Molybdenum sulfide leachate. PSNS for the Primary Molybdenum and Rhenium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum sulfide leached Arsenic 0.644 0.287 Lead 0.130 0.060 Nickel 0.255 0.171 Selenium 0.380 0.171 Molybdenum [Reserved] [Reserved]. Ammonia (as N) 61.720 27.130 Fluoride 16.210 9.214 (b) Roaster SO 2 scrubber. PSNS for the Primary Molybdenum and Rhenium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum sulfide roasted Arsenic 2.334 1.041 Lead 0.470 0.218 Nickel 0.924 0.621 Selenium 1.377 0.621 Molybdenum [Reserved] [Reserved]. Ammonia (as N) 223.800 98.390 Fluoride 58.770 33.410 (c) Molybdic oxide leachate. PSNS for the Primary Molybdenum and Rhenium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum contained in molybdic oxide leached Arsenic 16.100 7.182 Lead 3.244 1.506 Nickel 6.371 4.286 Selenium 9.499 4.286 Molybdenum [Reserved] [Reserved]. Ammonia (as N) 1,544.000 678.800 Fluoride 405.400 230.500 (d) Hydrogen reduction furnace scrubber. PSNS for the Primary Molybdenum and Rhenium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum metal powder produced Arsenic 3.183 1.420 Lead 0.641 0.298 Nickel 1.260 0.847 Selenium 1.878 0.847 Molybdenum [Reserved] [Reserved]. Ammonia (as N) 305.300 134.200 Fluoride 80.150 45.570 (e) Depleted rhenium scrubbing solution. PSNS for the Primary Molybdenum and Rhenium Subcategory Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/kg (pounds per million pounds) of molybdenum sulfide roasted Arsenic 0.995 0.444 Lead 0.201 0.093 Nickel 0.394 0.265 Selenium 0.587 0.265 Molybdenum [Reserved] [Reserved]. Ammonia (as N) 95.440 41.960 Fluoride 25.060 14.250 [50 FR 38355, Sept. 20, 1985, as amended at 55 FR 31702, 31703, Aug. 3, 1990]
Cross-references to the CFR
40:403.7
40 C.F.R. § 421.216: Pretreatment standards for new sources. | Justis AI