2020-07-24_REVISION - M1977300 - Laserfiche WebLink

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'"',,COLORADO LEGACY LAND $CHWARTZWALDER MINE i TABLE E-4.COLOMffRMNTffARGE PE CO- 244 WATER T LANT DISCH i Effluent Limitations Maximum Concentrations Monitoring Requirements 30-Day 7-Day Daily Maximum 2-Year Frequency Sample Type Effluent Parameter Units Average Average Average Antimony,Total µg/L 5.6 - - - 2 Days/Month Composite Arsenic,Total Recoverable µg/L Report - - - 2 Days/Month Composite Boron,Total Recoverable mg/L 0.75 - - - 2 Days/Month Composite Cadmium,Potentially Dissolved µg/L Report - Report - 2 Days/Month Composite Chemical Oxygen Demand mg/L 100 - 200 - 1 Day/Week Composite Chromium(Cr[III]),Total µg/L - - 50 0.75 2 Days/Month Composite Hexavalent Chromium Cr[IV]),Dissolved µg/L Report - I Report - 2 Days/Month Composite Copper,Potentially Dissolved µg/L 12 - 18 1.8 2 Days/Month Composite Cyanide,WAD µg/L - - 5 0.85 2 Days/Month Composite Chloride mg/L 250 - - 54 2 Days/Month Composite Effluent Flow MGD 0.288 - Report - Continuous Recorder Fluoride mg/L - - 2 - 1 2 Days/Month Composite Iron,Dissolved µg L 300 - - 45 2 Days Month Composite Iron,Total Recoverable µ /L Report - - Report 2 Days Month Composite Manganese,Dissolved µ L 50 - - 7.5 2 Days Month Composite Mercury,Total µg/L Report - - - 2 Days/Month Composite Nickel,Potentially Dissolved µg/L Report - Report Report 1 2 Days/Month Composite Oil and Grease mg/L - 10 - 5 Days/Week Visual/Grab H - 6.5-9 5 Days Week Grab Selenium, Potentially Dissolved µ /L Report - Report Report 2 Days Month Composite Silver,Potentially Dissolved µg/L 0.13 - 3.5 0.02 2 Days/Month Composite Sulfate mg/L 250 - - 131 2 Days/Month Composite Sulfide mg/L Report - - Report 2 Days/Month Composite Total Radium 226+228 pCi/L 5 - - - 2 Days/Month Composite Radium 226,Dissolved Ci/L 3 - 10 - 2 Days Month Composite Radium-226,Total Ci/L 10 - 30 - 2 Days Month Composite Total Dissolved Solids mg/L Report - Report - Quarterly Composite IULY 2020 29 AMENDMENTS