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<br />• <br />SENECA COAL COMPANY -POND 13 CONSTRUCTION <br />Work: Structwal FilUSoils Nuclear Density Test Result Summary <br />Project Location: Hayden, Colorado <br />Project Number: 2470108 <br />Field Technician: Mike Ross <br />Summarv Work Performed By MWH COA Field Engineer <br />Dam Construction: <br />Between October 10, through November 4, 2003, a MWH CQA Field Engineer made 7 trips to Seneca <br />Coal's Pond 13 Construction Site [o perform Nuclear Density Testing on the structural fill being placed to <br />build the Pond 13 dam. Nucleaz density gauge (Troxler) testing took place at random times and locations <br />throughout the entire construction phase. A total of 16 tests were taken dwing dam construction. See [he <br />attached testing data sheet for specific test dates and results. All tests exceeded the required 95% <br />compaction of Standazd Proctore (ASTM D698). <br /> <br />~~~ <br /> <br />