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Common Features of All Sediment Ponds <br />20335 <br />Emergency <br />Spillway downslope lining: <br />Grouted riprap (Dso = 0.5 ft) <br />re yraae_ — 12 inches thick <br />2 3 <br />i <br />Fill material ( <30 mesh) placed <br />in 2 ft. lifts at 93% dry density <br />compaction <br />lad' 10 <br />1 <br />Y <br />Spillway lining: <br />Grouted riprap (D5o = 0.5 ft) <br />12 inches thick <br />Trapezoidal Channel <br />Equal Side Slopes <br />Channel Lining: Grouted riprap (D5o = 0.5 ft) <br />1 <br />Ex. Baseline Topography <br />Waste rock material <br />1 D5o = 0.25 ft <br />Spill way lining extends 3 ft <br />past crest of sideslope on both <br />sides Tn Lr C E <br />Mc 0 5 2092 <br />A <br />Note: Specific pond dimenstions, such as embankment <br />height, top of embankment width, and spillway <br />dimensions, can be found on the appropriate pond <br />design map. See Map G -2 for Sediment Pond 1, Map <br />G -3 for Sediment Pond 2, and Map G -4 for Sediment <br />Pond 3. <br />—'2j) D -- 1)1,2._-, <br />Notes: RwNyq 61 OP OES DAM <br />DRN 111112 2reg LOWiCki And ASSOCiates Map G -6: Embankment Design <br />aK Revenue Mine <br />nRRo <br />Star Mine Operations <br />