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<br />parallel to the bedding planes than normal to Chan. The VenneJo <br />Fonrretlon probably contains many small confined and sans-confined <br />sandstone units which may even be "perched" (lying above an unsaturated <br />zone). The formation is so complex, horizontally as we 11 as vertically, <br />that Identification and testing of Individual "aquifers" is impractical. <br />Data fran the slug tests performed on Monitoring Wells 10, 16 and <br />23 shay very low penneabllittes and tend to follav the type curve <br />pattern for confined aquifers. Since the perforated casing fn each well <br />spans several lithologic types, the resulting water level is likely a <br />composite plezametric head for the whole interval. The possible <br />plezometric surface shown on the Hydrology Map, sheet 3, should rot be <br />Interpreted as a water table surface shaving a northeast flow. <br />Monltoring~vell perforations occur In different zones within the VermeJo <br />Formation , separated by law-penneabil(ty shale units which should act <br />as confining layers. Movement of ground water will be discussed In the <br />next section. <br />r <br />Raton Formation - The Raton Formation consists of medium to <br />coarse-grained massive sandstone, less than 500 feet thick (b). In the <br />Permit Area, thickness If probably closer to 200 feet. The Ratan <br />Forretion and the overlying Poison Canyon sandstone occupy uplands In <br />the Permit Area. <br />Only one well Is knav to produce water from the Raton Formation, <br /> t <br />and Its estimated yield Is 1 gallon per mirwte. This is the Corley 1~{' <br />' <br /> r <br />We11, used for a fresh water supply to the Dorchester No. 1 Mine. S s~ ' <br />Mlnirg activities In the VermeJo Formation are not expected Lo have any <br />Impact on the quantity or quality of ground water In the Raton <br />Formation. <br />Movement of Ground Water <br />. The regional gro~aid-water flow system within Lhe synclinal basin <br />contalning the Pernit Area Is not easily described, since maJor recharge <br />sources have been Intercepted for.nuilclpal supplies and the potential <br />