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Groundwater Quality Monitoring Plan <br /> Baseline data will be collected from each monitoring well designated as a groundwater <br /> quality monitoring well. Some groundwater wells will only be used to collect water level <br /> information (piezometers). <br /> 2.1 Monitoring Well Placement <br /> Table 1: Exis ing and potential new Well Locations <br /> WELL LOCATION/ <br /> NAME GRADIENT Type RATIONAL <br /> MW-1 DOWN NW PH.3 RM/POC Existing— NW corner of Phase 3 <br /> MW-2 CROSS/UP SW RM Existing—SW corner of Phase 3 and west central of <br /> PH 3/CEN ALL all mining, north of Phase 4 <br /> MW-3 DOWN NE COR WL Existing central east and north <br /> PH 2/ALL <br /> MW-4 MID N CEN PH 1 WL Existing central east and south <br /> MW-5 UP SW COR PH RM Existing SW corner of Phase 4 <br /> 4 <br /> MW-6 UP S MID BDRY WL Southern boundary central <br /> PH 1 <br /> MW-7 UP SE COR PH 1 RM Existing eastern boundary <br /> MW-8 DOWN NE COR RM/POC Potential new well northeast boundary of Phase 2 <br /> PH 2/ALL and all Phases, down gradient <br /> MW-9 MID N CEN PH 1 WL Potential new well north boundary of Phase 1, south <br /> of Phase 2 and central for all Phases <br /> MW-10 UP S MID BDRY WL Potential new well southern boundary central <br /> PH 1 <br /> MW-11 NW PH 2/N ALL RM/POC Potential new for NW of Phase 2 and NE of Phase 3 <br /> MW-12 SE PH 2/E CEN RM Potential new for SE of Phase 2 and east central all <br /> ALL Phases <br /> MW-13 SE PH 4/S CEN WL Potential new for SE of Phase 4 and S for all <br /> ALL Phases <br /> MW-14 SE PH 1/SE ALL I WL Potential new for SE side <br /> DOWN = downgradient UP = upgradient CROSS = cross gradient <br /> NW = northwest SW= southwest NE = northeast <br /> SE = southeast PH = phase WL =water level piezometer <br /> POC = point of compliance COR = corner ALL = services all phases <br /> BDRY= boundary RM = regularly monitored <br /> 2.2 Monitoring Well Site Selection <br /> Figure 2 presents a groundwater elevation contour map that was constructed from <br /> water level data obtained from the existing monitoring wells. The average (mean) <br /> groundwater level was used to construct the groundwater elevation contour map. The <br /> groundwater levels generally followed the topographic gradient, with water flowing <br /> generally from a west-southwest and south direction to a north and northeast direction. <br /> rjT� MOLEN LG Everist Monitoring Plan <br /> &ASSOCIATES Page 3 of 7 <br />