mg/off-kg (pounds per million oft-pounds) of titanium sawed or ground with emulsions Cyanide source 0.053 0.077 0.267 24.4 10.9 0.022 0.037 0.112 10.7 4.83 $ 471.63 New performance standards (NSPS). Any new source subject to this subpart must achieve the following new source performance standards (NSPS). The discharge of wastewater pollutants from titanium process wastewater Cyanide 0.080 0.116 0.403 36.8 16.4 5.52 11.3 (") 0.033 0.055 0.169 16.2 7.29 3.31 5.38 (1) Cyanide 0.847 Lead 0.351 0.584 1.78 171 77.1 35.1 57.0 (") 1.23 Zinc 4.27 Ammonia 389 Fluoride 174 Oil and grease 58.4 TSS 120 pH (1) 1 Within the range of 7.5 to 10.0 at all times. Within the range of 7.5 to 10.0 at all times. (r) Molten salt rinse. 8 471.64 Pretreatment standards for existing sources (PSES). Except as provided in 40 CFR 403.7 and 403.13, any existing source subject to this subpart which introduces pollutants into a publicly owned treatment works must comply with 40 CFR part 403 and by August 23, 1988 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in titanium forming process wastewater introduced into a POTW shall not exceed the following values: (a) Rolling spent neat oils-Subpart FPSES. There shall be no discharge of process wastewater pollutants. (b) Rolling contact cooling water. SUBPART F-PSES Pollutant or pollutant property Maximum for any 1 day Maximum for monthly aver age Cyanide 0.021 0.030 0.105 9.59 4.28 0.009 0.015 0.044 4.22 1.90 (f) Extrusion press hydraulic fluid leakage. mg/off-kg (pounds per million Cyanide 0.293 1.48 0.121 0.202 0.616 592 26.7 |