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Ouray Silver Mines Inc.Technical Revision 09TablesTable 4. Water Quality Sampling Location DecriptionsStation ID Station Type Station DescriptionXYCollar Elevation SW-4 Sneffles Creek downstream N37° 58.508”W107° 44.756’ 10,572SW-15 Sneffles Creek upstream N37° 58.563” W107° 45.334’ 10,701SW-16 Sneffles/Atlas Creek Confluence N37° 58.512” W107° 45.180’ 10,689GW-1A aN37° 58.512” W107°45'15.55" 10,683GW-1B aN37°58'31.39” W107°45'15.60" 10,653GW-2AN37°58'30.76” W107°45'8.97" 10,634GW-2BN37°58'30.75” W107°45'9.06" 10,634GW-3AN37°58'31.73” W107°45'2.66" 10,620GW-3BN37°58'31.74” W107°45'2.66" 10,621UG-1 bYellow Rose Drift N/A N/A N/AUG-2 cRevenue upstream of Yellow Rose N/A N/A N/AUG-3 cAtlas/Cumberland N/A N/A N/AUG-4 bRevenue Upstream Atlas N/A N/A N/AMWP Inlet dMine Water Pond Inlet N/A N/A N/ANotes:Locations presented in NAD 83ft = feetamsl = above mean sea levela = No additional sampling required in until the Atlas tailings Storage Facility area is disturbed, DMRS Nov. 13. 2015.d = Proposed monitroing location to replace UG-5b = Annual sampling allowed by DRMS on Nov. 13, 2015. Regular quarterly sampling to recommence once the mine is in production.c = Temporary reprieve from sampling granted by DRMS on Nov. 13, 2015, with regular quarterly sampling to resume when the mine is in production.Surface WaterGroundwaterMinewaterDowngradient Atlas Tailings Storage FacilityDowngradient Revenue Pond Tailings Storage FacilityDown Gradient Bioreactive Pond