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<br /> • <br /> <br /> require dewaterinq, Thia could be done with walla or well points <br /> properly spaced around the site. Thea^ well points could discharge <br /> their water back into the aquifer at a point downstream from the <br /> proposed sand pit. 5ineo this sand pit literally exists within the <br /> <br /> aquifer, all the regulations of the Col orado water Pollution Commisoiol <br />' ~ must b© followe8 in mining this sand. Specific attention should be <br /> ivsn to <br />g <br />procedures which would insure <br />that oil and grease were kept <br /> f <br />h f <br /> rom t <br />e reo water. <br />In summary, the sancta on the site are of fair <br />quality and can be used as fine asphalt aggregate or ae a Tina grained <br />base course for secondary County roads. it is not a high quality <br /> <br /> <br />w <br /> <br /> <br />~ .:.s . ~ <br />,~. ~ <br />concrete aggregate, nor should it be used as a surface course for a <br />major road. Considering the fact that the Band pit will be under the <br />free water table over most of the area, the economics of its use ere <br />probably marginal at the present time. <br />It is believed that all pertinent information hay <br />befncluded within this report for both the land fill use and the sand <br />aggregate us©. if questions arise or further information is 8eaired, <br />please feel free to contact tho laboratory at any time. <br />13 <br />