Laserfiche WebLink
~ <br />• <br />COLORADO DE PARTMENT HEALTH, Water Quality Contro l <br />isi <br />Rationale - Page 10. Permit No. CO-0024562. <br />Table VI^2 -- Summary of Mass Balance Calculations <br /> Upstream Background Stream Effluent <br /> Concentration Standard Limitation <br /> mg/1 mg/1 mg/1 <br />Parameter Acute/Chronic Acute/Chronic <br /> (M1) (M3) <br />(M2) <br />Potentially Dissolved Silver* 0 0.0079/0.0003 0.0212/0.0008 <br />Potentially Dissolved Cadmium 0.00055 0.0095/0.0002 0.0248/0.0047 <br />Potentially Dissolved Copper 0.0018 0.037/0.023 0.097/0.059 <br />Potentially Dissolved Lead 0.00075 0.342/0.012 0.920/0.030 <br />Potentially Dissolved Zinc 0.0094 0.412/0.054 1.00/0.130 <br />Total Recoverable Mercury 0 NA/0.01 NA/0.03 <br />Potentially Dissolved Arsenic 0 0.05/0.05 0.135/0.135 <br />P.D. Trivalent Chromium 0 0.05/0.05 0.135/0.135 <br />P.D. Hexavalent Chromium 0 0.16/0.11 0.043/0.030 <br />Potentially Dissolved Nickel 0 1.68/ .174 4.53/0.469 <br />* Potentially Dissolved is defined on page 4 of the permit. <br />2. Applicable Federal Effluent Guidelines and Standards: Since this <br />is not a currently active mining operation, no federal guidelines <br />apply for this type of operation. However, federal limitations for <br />active mining have been considered in developing limits should <br />Pike's Peak begin exploration or mining of the Carlton Tunnel. The <br />his type of facility are found <br />vel which the Division believes <br />and Dressing Point Source <br />Silver and Molybdenum Ores <br />limitations in the federal <br />nt of exploration in the <br />applied when they are <br />from the Water Quality <br />pply to this facility <br /> <br />federal guidelines whi <br />under 40 CFR 440, titl <br />Category, <br />Subcategor <br />guidelines <br />is approp <br />Carlton T <br />ch apply to t <br />ed Ore Mining <br />riate for this facility <br />unnel. These limits wou <br />Copper, Lead, Zinc, Gold, <br />y (440.103). The effluent <br />indicate a technology le <br /> <br />more restrictive than the limits <br />Standards. The federal limitatio <br />are: <br />Table VI-3 -- Federal Standards <br />Parameter <br />30 Day Average <br />Concentration <br />Daily Maximum <br />Concentration <br />Total Suspended Solids, mg/1 <br />Total Copper, mg/1 <br />Total Lead, mg/1 <br />Total Mercury, mg/1 <br />Total Cadmium, mg/1 <br />Total 7.inc, mg/1 <br />20 <br />0.15 <br />0.3 <br />0.001 <br />0.05 <br />0.75 <br />30 <br />0.30 <br />0.6 <br />0.002 <br />0.10 <br />1.5 <br />in the eve <br />ld only be <br />calculated <br />ns which a <br />