[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR471.11] [Page 688-690] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 471--NONFERROUS METALS FORMING AND METAL POWDERS POINT SOURCE CATEGORY--Table of Contents Subpart A--Lead-Tin-Bismuth Forming Subcategory Sec. 471.11 Effluent limitations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT). Except as provided in 40 CFR 125.30 through 125.32, any existing point source subject to this subpart must achieve the following effluent limitations for the process operations representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT): (a) Rolling spent emulsions. Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth rolled with emulsions --------------- Antimony.................................... 0.068 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--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pound) of lead- tin-bismuth rolled with soap solutions --------------- Antimony.................................... 0.125 0.055 Lead........................................ 0.019 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--BPT. There shall be no discharge of process wastewater pollutants. (d) Drawing spent emulsions. Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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......................................... 1.08 0.513 pH.......................................... ............ (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (e) Drawing spent soap solutions. Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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. [[Page 689]] Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds of lead- tin-bismuth heat treated --------------- Antimony.................................... 4.14 1.850 Lead........................................ 0.605 0.288 Oil and grease.............................. 28.80 17.30 TSS......................................... 59.10 28.10 pH.......................................... ............ (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (g) Extrusion press hydraulic fluid leakage. Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth ingot cast by the sem-continuous method --------------- Antimony.................................... 0.085 0.038 Lead........................................ 0.013 0.006 Oil and grease.............................. 0.588 0.353 TSS......................................... 1.21 0.574 pH.......................................... ............ (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (j) Shot casting contact cooling water. Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth shot formed --------------- Antimony.................................... 1.69 0.753 Lead........................................ 0.247 0.118 Oil and grease.............................. 11.8 7.06 TSS......................................... 24.1 11.5 pH.......................................... ............ (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (l) Alkaline cleaning spent baths. Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day 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. [[Page 690]] (m) Alkaline cleaning rinse. Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth alkaline cleaned --------------- Antimony.................................... 6.78 3.02 Lead........................................ 0.991 0.472 Oil and grease.............................. 47.2 28.4 TSS......................................... 96.8 46.0 pH.......................................... ............ (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (n) Swaging spent emulsions. Subpart A--BPT ------------------------------------------------------------------------ Maximum for Pollutant or pollutant property Maximum for monthly any 1 day average ------------------------------------------------------------------------ mg/off-kg (pounds per million off-pounds) of lead-tin-bismuth swaged with emulsion --------------- Antimony.................................... 0.005 0.002 Lead........................................ 0.0007 0.0004 Oil and grease.............................. 0.036 0.022 TSS......................................... 0.073 0.034 pH.......................................... ............ (\1\) ------------------------------------------------------------------------ \1\ Within the range of 7.5 to 10.0 at all times. (o) Degreasing spent solvents--Subpart A--BPT. There shall be no discharge of process wastewater pollutants. [50 FR 34270, Aug. 23, 1985; 51 FR 2884, Jan. 22, 1986]