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Groundwater Quality Monitoring Plan <br /> fli <br /> 2.1 Groundwater Flow Direction <br /> The groundwater flow direction generally follows the topographic gradient. Groundwater <br /> generally flows from south to north, in the general flow direction of the South Platte <br /> River alluvium. <br /> 2.2 Existing Groundwater Wells <br /> Existing groundwater wells have been used to measure water levels over the past <br /> several years. The groundwater well locations are presented in the L.G. Everist, Inc. <br /> Fort Lupton Sand and Gravel - Figure 1 Monitoring Wells, The majority of the monitoring <br /> wells are water gauging, used for water level measurements, and are also shown in <br /> Figure 1. Water quality groundwater monitoring wells are generally located at the <br /> perimeters of the site and in areas that will not be mined in the near future. The water <br /> quality monitoring wells (WQMs) are the only wells used to obtain baseline groundwater <br /> quality data for the LGE-FL site. <br /> Groundwater wells are completed with a 2-inch diameter PVC casing and screen. The <br /> wells are constructed with screening across the entire water bearing zone, and solid <br /> piping to the surface completion. A washed sand pack is placed from the base of the <br /> well to one-foot above the screened interval. A lockable metal well cover surrounds the <br /> PVC well casing and is imbedded in a concrete pad installed at the ground surface. <br /> Table 1: Existing Water Level Wells <br /> �". . pax ` :` <br /> MW 6 MIDDLE Water Level <br /> MW 8 MIDDLE Water Level <br /> MW 9 MIDDLE Water Level <br /> MW 11 MIDDLE Water Level <br /> MW 14 MIDDLE Water Level <br /> MW 20 MIDDLE Water Level <br /> MW 24 MIDDLE Water Level <br /> MW 25 MIDDLE Water Level <br /> MW 28 MIDDLE Water Level <br /> MW 27 MIDDLE Water Level <br /> MW 28 MIDDLE Water Level <br /> MW 29 MIDDLE Water Level <br /> MW 30 MIDDLE Water Level <br /> MW 31 MIDDLE Water Level <br /> MW 32 MIDDLE Water Level <br /> MW 34 MIDDLE Water Level <br /> MW 37 MIDDLE Water Level <br /> MW 45A MIDDLE Water Level <br /> MW 52 MIDDLE Water Level <br /> MW 54 MIDDLE Water Level <br /> MW 55 MIDDLE Water Level <br /> MW 57 MIDDLE Water Level <br /> MW 58 MIDDLE Water Level <br /> WillMOLEN LG Everist Fort Lupton GW Monitoring Plan <br /> &Assocu.ra Page 3 of 7 <br /> 28 <br />