2010-09-30_HYDROLOGY - M1977300 - Laserfiche WebLink

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Cotter Corporation PROCEDURE Number: 3-4 Schwartzwalder Mine Page: 10 of 11 Golden, Colorado WATER MONITORING Revision: 8 Date: 08/01/2010 TABLE 3: WATER TREATEMENT DISCHARGE - EXTENDED SURE PARAMETERS (S&A CODES 5 & 6) Discharge Water Quality Parameter Unit LLD Sample Volume Preservative Field Filtered General Pm Derdw Total Dissolved Solids DS 10 500mL Cod to 4'C Yes Total Susperxied Solids SS mgA- 4 1 LBer Cod to 4'C No Chemical Oxygen Demand (COD) mg/L 5 250mL HZSO, & Cool to 4'C No ON and Grease vi visual No No pH S.U. I Field measured No No Abior bras Cyanide (weak acid dissocial mgAL 0.005 500mL NaOH & Cod to 4'C No Chloride mgIL 3.0 500mL Cod to 4'C No Fluoride ma/L 0.1 250mL Cod to 40C Yes Sulfate mg/L 5.0 500mL Cod to 4'C No Sulfide mg/L 5.0 500mL Cod to 4'C No Metals Tote! Antimony mg/- 0.001 HNO3 No Arsenic mg& 0.10 HN% No Boron mg/L 0.1 HN03 No Chromium+3 mg/L 0.05 HN% No Mercury mgll 0.0001 250rnL HN03 No Iron mg/L 0.03 HN03 No Thallium mg/L 0.001 HN% No Uranium mg/L 0.0002 HNO3 No Metals Dissolved Chrorrnum+6 mg/L 0.01 250mL Cod to 4'C Yes Iron mg/L 0.03 HNO3 Yes Manganese mg/L 0.01 7 L 100mL HN03 Yes Metals PbtwWa Dissolved Arsenic mg/L 0.10 HN03 No Cadmium HN03 No Copper mg/L 0.005 HN03 No Nicide mg/l HNO3 No Selenium mg/L 250mL HN03 No Silver mg/L 0.001 HNg No Uranium mg/- 0.0002 HN03 No Zinc mg/L 0.005 HNg No RadonucUdes Total Radium 226 pCi/L 0.2 HN03 No Radium 226+228 pCi/L 2 Liter T HN03 No Radlonudkbs Dissolved Radium 226 pCi/L 0.2 2 Liter HN03 Yes YHEr Pirnephales Leth 3 composkesitest N/A Cenodaphnia Leth 3 composdes4est N/A Pimephales 12?SLchC 3 N/A C nia T 3 OOmI askesitest NIA S&A code ti only (quarteity only) Page 20 of 21