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COLORADO LEGACY LAND <br /> TABLE 2.GROUNDWATER SAMPLE FIELD PARAMETERS <br /> Location ID/ Sample Field Parameters Depth to Water Notes/Location Description <br /> Sample ID Date pH unitless Temperature °C Conductivity S cm ORP mV Dissolved Oxygen m L ft btoc <br /> MW-00 TBD TBD TBD TBD TBD TBD TBD Alluvial well. Above waste dumps,upstream of site. <br /> MW-0 TBD TBD TBD TBD TBD TBD TBD Alluvial well.Toe of south waste rock pile. <br /> MW-1 TBD TBD TBD TBD TBD TBD TBD Alluvial well.Next to former concrete containment. <br /> MW-2 TBD TBD TBD TBD TBD TBD TBD Alluvial well. Below retention ponds near creek.Usually dry. <br /> MW-3A TBD TBD TBD TBD TBD TBD TBD Alluvial well. Near former haul road.Usually dry. <br /> MW-4 N/A N/A N/A N/A N/A N/A N/A Removed in 2008. <br /> MW-5 N/A N/A N/A N/A N/A N/A N/A Removed in 2008. <br /> MW-6 TBD TBD TBD TBD TBD TBD TBD Alluvial well. Near former Sump#2. <br /> MW-7 TBD TBD TBD TBD TBD TBD TBD Alluvial well. Near Sump#1 <br /> MW-8 N/A N/A N/A N/A N/A N/A N/A Not sampled,replaced with well MW-12. Monitor water level only. <br /> MW-9 N/A N/A N/A N/A N/A N/A N/A Not sampled,tied in with sumps. Monitor water level only. <br /> MW-10 N/A N/A N/A N/A N/A N/A N/A Not sampled,bentonite in screened interval. Monitor water level only. Replaced <br /> with MW-13. <br /> MW-11 N/A N/A N/A N/A N/A N/A N/A Not sampled,bentonite in screened interval. Monitor water level only. Replaced <br /> with MW-14. <br /> MW-12 TBD TBD TBD TBD TBD TBD TBD Below Sump#1. <br /> MW-13 TBD TBD TBD TBD TBD TBD TBD Nitrogen.Replaced MW-10. Previous Sample ID=L1. <br /> MW-14 TBD TBD TBD TBD TBD TBD TBD Nitrogen.Replaced MW-11. Previous Sample ID=L2. <br /> MW-15 TBD TBD TBD TBD TBD TBD TBD Nitrogen. Previous Sample ID=W. <br /> MW-16 N/A N/A N/A N/A N/A N/A N/A Not sampled,casing too narrow. Monitor water level only. Previous Sample ID= <br /> L4. <br /> MW-17 TBD TBD TBD TBD TBD TBD TBD Nitrogen. Previous Sample ID=L5. <br /> MW-18 TBD TBD TBD TBD TBD TBD TBD Previous Sample ID=L6. <br /> MW-19 TBD TBD TBD TBD TBD TBD TBD Toe of south waste rock pile.Previous Sample ID= L7. <br /> MW-20 TBD TBD TBD TBD TBD TBD TBD Usually dry. Top of south waste rock pile. <br /> Raw Feed TBD TBD TBD TBD TBD TBD N/A Sample collected from spigot inside water treatment plant. This is the water <br /> treatment plant intake from the mine pool. .Previous Sample ID= Mine Refill. <br /> Sumps TBD TBD TBD TBD TBD TBD N/A Sample collected from spigot inside water treatment plant. This is the combined, <br /> collected sump water. <br /> Notes: <br /> ft btoc=feet below top of casing mg/L=milligrams per liter <br /> °C=degrees Celsius mV=millivolts <br /> µS/cm=microSemiens per centimeter ORP=Oxidization Reduction Potential <br /> PAGE 15 OF 24 <br />