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Review of Blasting Operations of Summit Brick <br />1. SITE LOCATIONS & GEOLOGY, cont' <br />3. The 8-Mile Clay Mine: (Permit # M-1977-320) <br />Mai 3• shows the general location of the 8-Mile Clay Mine where the geology, again is <br />very similar to that of the Fox mine, and consists of the strata and clays of the Glencairn <br />Formation, Dakota Group. Further, the map shows streams, roads, utilities, wells, all <br />dwellings with in 3000 ft., and other structures. There are dwellings and wells exist <br />within 3000ft. of the proposed blasting. A pre-blast survey will be conducted and release <br />aggreements signed. <br />Extensive published geological work has mapped the Dakota Sandstone Group with the <br />associated clays throughout Fremont County. Near the middle of the Dakota Group lies <br />the Glencairn Formation, which contains shales and clays which have brick making <br />properties. Site specific geology indicates that the subject Dakota strikes N 45° W and dips <br />to the south-west, existing as an un-eroded island, situated above the surrounding <br />formations. Local wells are not producing from the Dakota Aquifer. <br />4. The Beaver Creek Clay Mine: (Permit # M-1977-322) <br />Map 4. shows the general location of the Beaver Creek clay Mine where the geology <br />consists of the strata and clays of the Gien Eyrie Shale member of the Fountain <br />Formation. Further, the map shows streams, roads, utilities, wells, all dwellings with in <br />3000 ft., and other structures. There are dwellings and wells exist within 3000ft. of the <br />proposed blasting. A pre-blast survey will be conducted and release aggreements signed. <br />There is extensive published geological work has mapped the Fountain Formation with <br />the associated clays and shales throughout Fremont County. It is the Eyrie shale member <br />which is situated stratigraphically several thousand ft. below the Dakota Group, and <br />contains shales and clays which have brick making properties. Site specific geology <br />indicates that strata of the Glen Eyrie striking N 45° E and dipping to the south-east, out- <br />crop several hundred ft, above an alluvial valley floor, where Seaver Creek flows. <br />7 <br />