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, 1985 achieve the following pretreatment standards for existing sources (PSES). The mass of wastewater pollutants in precious metals forming process wastewater introduced into a POTW shall not exceed the following values:
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals rolled with emulsions | ||
Cadmium | 0.026 | 0.012 |
Copper | 0.147 | 0.077 |
Cyanide | 0.023 | 0.010 |
Silver | 0.032 | 0.013 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals drawn with emulsions | ||
Cadmium | 0.016 | 0.007 |
Copper | 0.091 | 0.048 |
Cyanide | 0.014 | 0.006 |
Silver | 0.020 | 0.008 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals drawn with soap solutions | ||
Cadmium | 0.001 | 0.0005 |
Copper | 0.006 | 0.003 |
Cyanide | 0.0009 | 0.0004 |
Silver | 0.002 | 0.0006 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals powder wet atomized | ||
Cadmium | 2.27 | 1.00 |
Copper | 12.7 | 6.68 |
Cyanide | 1.94 | 0.802 |
Silver | 2.74 | 1.14 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals heat treated | ||
Cadmium | 0.142 | 0.063 |
Copper | 0.793 | 0.417 |
Cyanide | 0.121 | 0.050 |
Silver | 0.171 | 0.071 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals cast by the semi-continuous or continuous method | ||
Cadmium | 0.350 | 0.155 |
Copper | 1.96 | 1.03 |
Cyanide | 0.299 | 0.124 |
Silver | 0.423 | 0.175 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any one day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals cast by the direct chill method | ||
Cadmium | 0.367 | 0.162 |
Copper | 2.05 | 1.08 |
Cyanide | 0.313 | 0.130 |
Silver | 0.443 | 0.184 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals shot cast | ||
Cadmium | 0.125 | 0.055 |
Copper | 0.698 | 0.367 |
Cyanide | 0.107 | 0.044 |
Silver | 0.151 | 0.063 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metal and base metal pressure bonded | ||
Cadmium | 0.029 | 0.013 |
Copper | 0.159 | 0.084 |
Cyanide | 0.024 | 0.010 |
Silver | 0.034 | 0.014 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals surface treated | ||
Cadmium | 0.033 | 0.015 |
Copper | 0.183 | 0.097 |
Cyanide | 0.028 | 0.012 |
Silver | 0.040 | 0.017 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals surface treated | ||
Cadmium | 0.210 | 0.093 |
Copper | 1.17 | 0.616 |
Cyanide | 0.179 | 0.074 |
Silver | 0.253 | 0.105 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned | ||
Cadmium | 0.021 | 0.009 |
Copper | 0.114 | 0.060 |
Cyanide | 0.018 | 0.007 |
Silver | 0.025 | 0.010 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals alkaline cleaned | ||
Cadmium | 0.381 | 0.168 |
Copper | 2.13 | 1.12 |
Cyanide | 0.325 | 0.135 |
Silver | 0.459 | 0.191 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals and base metal cleaned prior to bonding | ||
Cadmium | 0.400 | 0.174 |
Copper | 2.210 | 1.16 |
Cyanide | 0.337 | 0.139 |
Silver | 0.476 | 0.197 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals tumbled or burnished | ||
Cadmium | 0.412 | 0.182 |
Copper | 2.300 | 1.21 |
Cyanide | 0.351 | 0.145 |
Silver | 0.496 | 0.206 |
Subpart D-PSES
Pollutant or pollutant property | Maximum for any 1 day | Maximum for monthly average |
mg/off-kg (pounds per million off-pounds) of precious metals sawed or ground with emulsions | ||
Cadmium | 0.032 | 0.014 |
Copper | 0.178 | 0.094 |
Cyanide | 0.027 | 0.011 |
Silver | 0.038 | 0.016 |
40 C.F.R. §471.44