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 representing the degree of effluent reduction attainable by the application of the best available technology economically achievable (BAT):
Subpart D-BAT
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-BAT
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-BAT
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-BAT
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-BAT
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-BAT
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-BAT
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 direct chill method | ||
Cadmium | 0.3676 | 0.162 |
Copper | 2.05 | 1.08 |
Cyanide | 0.313 | 0.130 |
Silver | 0.443 | 0.184 |
Subpart D-BAT
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-BAT
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 | 0.0297 | 0.013 |
Copper | 0.159 | 0.084 |
Cyanide | 0.0247 | 0.010 |
Silver | 0.0342 | 0.014 |
Subpart D-BAT
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-BAT
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-BAT
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-BAT
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-BAT
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 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-BAT
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-BAT
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 | 0.0327 | 0.014 |
Copper | 0.178 | 0.094 |
Cyanide | 0.0277 | 0.011 |
Silver | 0.0381 | 0.016 |
40 C.F.R. §471.42