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During the placement of backfill, soil will not be dropped onto the geomembrane <br />from a height greater than three feet. The soil will be pushed out over the <br />geomembrane in an upward tumbling motion. Soil will be placed from the bottom of <br />the slope upward. Suitable backfill, typically with rocks no larger than 0.5 inches in <br />diameter, will be used to prevent puncturing the liner. The backfill material will be <br />compacted with a smooth drum roller. <br />Denison will provide a certification by a professional engineer or other appropriately <br />qualified professional that will confirm that the facilities were constructed in <br />accordance with the approved design plan. <br />• <br />E <br />15-2 <br />T:\64986-Denison Mines\Task Order 4 - EPP Sunday Mines Group-Van4\Sunday Mines Group\DRMS RTC and Revised EPP\FINAL DRMS Report - EPP Sunday Mines.doc