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~~<„a., <br /> <br />1.0 S[J~A]ARY A~`dD CONCLUSI02d5 <br />Ash and SOz scrubber sludge which are disposed in the <br />r' Trapper Mine may generate contaminants. These contaminants could <br />• enter ground-caater systems at the Trapper Atine. Previous studies <br />have indicated that ground-water flora in the mine area is down- <br />dip and parallel to bedding planes ([d0-155). If this is true, <br />any contaminants will move to greater depths and will pass far <br />below the Yampa River. <br />' Indirect evidence indicates that there may be signifi- <br />• cant vertical, cross-bed components of ground-water flow. In <br />particular, there may be an up-section flow component in the <br />northern mine area and near the Yampa River (GR-R-402). <br />The objective of this study was to determine vertical, <br />cross-bed ground-caater flora relationships in the vicinity of the <br />~ Trapper Mine and the Yampa River. <br />r~ Vertical relationships of ground-caater levels were inves- <br />I tigated at three test well sites. Three piezometer wells were <br />constructed at each of the three sites. The wells at each site <br />i were completed at different depths. Ground-caater levels were <br />measured for well test intervals at varying depths. Vertical re- <br />i lationships of ground-:cater levels were established at each site. <br />These vertical relationships were used to draca conclusions about <br />' vertical, cross-bed ground-water flow. <br />In the southern (higher elevation) parts of the Trapper <br />Mine ([dell Site GZ), within strata above the Locaer idilliams Fork <br />Formation, ground-caater levels decrease with increasing depth. <br />Ground-water movement in this region has a docancaard, down-section <br />component. Shallow, saturated strata are recharging deeper strata, <br />1-1 <br />