Pretreatment standards for new sources.

(a) 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. (b) There shall be no discharge allowance for wastewater pollutants from the degassing operation. (c) The mass of wastewater pollutants from the core and ancillary operations except those identified in paragraph (b) introduced into a POTW shall not exceed the values set forth below: Subpart C Core Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of extruded Chromium 0.13 0.05 Cyanide 0.07 0.03 Zinc 0.35 0.15 TTO 0.24 Oil and grease (alternate monitoring parameter) 3.40 3.40 Subpart C Extrusion Press Leakage Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of hard alloy aluminum extruded Chromium 0.11 0.05 Cyanide 0.06 0.03 Zinc 0.31 0.13 TTO 0.21 Oil and grease (alternate monitoring parameter) 2.98 2.98 Subpart C Direct Chill Casting Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum cast Chromium 0.49 0.20 Cyanide 0.27 0.11 Zinc 1.36 0.56 TTO 0.92 Oil and grease (alternate monitoring parameter) 13.29 13.29 Subpart C Press Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart C Solution Heat Treatment Contact Cooling Water Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million-off-lbs) of aluminum quenched Chromium 0.76 0.31 Cyanide 0.41 0.17 Zinc 2.08 0.86 TTO 1.41 Oil and grease (alternate monitoring parameter) 20.37 20.37 Subpart C Cleaning or Etching Bath Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million-off-lbs) of aluminum cleaned or etched Chromium 0.067 0.027 Cyanide 0.036 0.015 Zinc 0.183 0.075 TTO 0.124 Oil and grease (alternate monitoring parameter) 1.79 1.79 Subpart C Cleaning or Etching Rinse Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million-off-lbs) of aluminum cleaned or etched Chromium 0.52 0.21 Cyanide 0.28 0.11 Zinc 1.42 0.59 TTO 0.96 Oil and grease (alternate monitoring parameter) 13.91 13.91 Subpart C Cleaning or Etching Scrubber Liquor Pollutant or pollutant property PSNS Maximum for any 1 day Maximum for monthly average mg/off-kg (lb/million-off-lbs) of aluminum cleaned or etched Chromium 0.72 0.29 Cyanide 0.39 0.16 Zinc 1.97 0.81 TTO 1.34 Oil and grease (alternate monitoring parameter) 19.33 19.33 [48 FR 49149, Oct. 24, 1983; 49 FR 11632, 11633, 11634, Mar. 27, 1984]