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within the mine area <br />surface water quality parameters reflect the <br />transitional nature of this area. Increased sus ended <br />changes in stream velocities as relatively stee p solids result from <br />west grade into the relatively shallow stream hannels of the ges to the <br />the east. <br />plains to <br />Surface water in the mine and loadout <br />calcium-carbonate and sodium-sulfate t areas can be characterized as <br />samples demonstrate elevated concentrationsspectively. Surface water <br />suspended and <br />dissolved solids as well as elevated iron and manganesehvalues. Surface <br />water resources in both mine and loadout areas are suitable for limited <br />domestic and livestock use <br />areas are limited b ~ however, current beneficial uses in these <br />City of Florence diversion eon Newiin'Creek upstreamwater resources. <br />The <br />previously described, Oak Creek is utilized °{ the mine area was <br />P y municipal <br />water source for the town of Rockvale. The Oak Creek municipal well field <br />• Provides water from shallow alluvial deposits and is located a <br />five (5) miles upstream from the loadout area. <br />pproximately <br />Groundwater c urrence and Use. <br />in the Essentially all of the lithologic units <br />mine and loadout areas can function as aquifers under favorable <br />conditions. However <br />terrace and valle only the Trinidad Sandstone and colluvial <br />Y deposits can be considered as potential aquifersvfor <br />water supply purposes. The Trinidad Sandstone is a <br />feet below the interval to be effected by minin PProximatel <br />deposits are a Y 300-400 <br />PDroximately 300-600 feet abovegthis,intervalv'in /the mine <br />area and occur as surficial deposits in the loadout area. <br />The extent and <br />location of these units are shown on the Regional Hydro eolo <br />5), the Mine Area Surface and Groundwater Hydrolo g gY Ma <br />Loadout Area Surface and Groundwater Hydrolo p' (Map <br />9Y Map, (Map 12) and the <br />9Y MaP, (Map 13). <br />The Trinidad Sandstone can serve as a mar final <br />however it outcrops approximate) g aquifer in this <br />within the mine area is a Y tW0 (2) miles east of the mine area rand <br />interval to PDroximately three to four hundred feet below the <br />be mined. The Trinidad Sandstone is separated from the <br />interval to be mined by a stratigraphic sequence consistin <br />interbedded and cross-bedded siltstones and shales which a <br />9 Primarily of <br />ppear to have <br />2.05.6-I1 <br />