New source performance standards (NSPS).

Any new source subject to this subpart must achieve the following new source performance standards. The mass of pollutants in the lead-tin-bismuth forming operations' process wastewater shall not exceed the following values: (a) Rolling spent emulsions. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsions Antimony 0.067 0.030 Lead 0.010 0.005 Oil and grease 0.468 0.281 TSS 0.960 0.457 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (b) Rolling spent soap solutions. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with soap solutions Antimony 0.120 0.055 Lead 0.018 0.009 Oil and grease 0.860 0.520 TSS 1.80 0.840 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (c) Drawing spent neat oils — subpart A—NSPS. There shall be no discharge of process wastewater pollutants. (d) Drawing spent emulsions. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with emulsions Antimony 0.076 0.034 Lead 0.011 0.005 Oil and grease 0.526 0.316 TSS 1.087 0.513 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (e) Drawing spent soap solutions. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth drawn with soap solutions Antimony 0.022 0.010 Lead 0.003 0.002 Oil and grease 0.149 0.090 TSS 0.306 0.146 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (f) Extrusion press and solution heat treatment contact cooling water. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth heat treated Antimony 0.414 0.185 Lead 0.061 0.030 Oil and grease 2.80 1.72 TSS 5.91 2.81 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (g) Extrusion press hydraulic fluid leakage. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth extruded Antimony 0.158 0.071 Lead 0.023 0.011 Oil and grease 1.10 0.660 TSS 2.26 1.07 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (h) Continuous strip casting contact cooling water. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth cast by the continuous strip method Antimony 0.003 0.001 Lead 0.0004 0.0002 Oil and grease 0.020 0.012 TSS 0.041 0.020 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (i) Semi-continuous ingot casting contact cooling water. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth ingot cast by the semi-continuous method Antimony 0.009 0.004 Lead 0.001 0.0006 Oil and grease 0.059 0.036 TSS 0.121 0.058 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (j) Shot casting contact cooling water. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot cast Antimony 0.107 0.048 Lead 0.016 0.008 Oil and grease 0.746 0.448 TSS 1.53 0.728 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (k) Shot-forming wet air pollution control scrubber blowdown. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed Antimony 0.169 0.076 Lead 0.025 0.012 Oil and grease 1.18 0.706 TSS 2.41 1.15 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (l) Alkaline cleaning spent baths. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned Antimony 0.345 0.154 Lead 0.051 0.024 Oil and grease 2.40 1.44 TSS 4.92 2.34 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (m) Alkaline cleaning rinse. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned Antimony 0.678 0.302 Lead 0.099 0.047 Oil and grease 4.72 2.84 TSS 9.68 4.60 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (n) Swaging spent emulsions. Subpart A—NSPS Pollutant or pollutant property Maximum for any 1 day Maximum for monthly average mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion Antimony 0.005 0.002 Lead 0.0008 0.0004 Oil and grease 0.036 0.022 TSS 0.073 0.035 pH ( 1 ) 1 Within the range of 7.5 to 10.0 at all times. (o) Degreasing spent solvents—subpart A—NSPS. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2884, Jan. 22, 1986]