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QUARTERLY POND INSPECTION REPORT <br />THE PITTSBURG & MIDWAY COAL MINING CO. <br />EDNA MINE <br />Pond Identification: CHECK DAM #20 <br />Type Of Pond: EARTHEN CHECK DAM STRUCTURE <br />Operational Status At Time of Inspection <br />Approximate Water Level: 1.5 FEET BELOW DISCHARGE ELEVATION <br />Sediment Level (%) Total Storage: ESTIMATE 10% FULL <br />Outflow (ds): NONE <br />Features <br />Status <br />Comments <br />Erosional: <br />Rills 8 Gullies On Embankment ok Small gully on outside edge of embankment. <br />Vegetation ok <br />Outlet Channels ok <br />Other <br />Pond Structure: <br />Settling See Note Below <br />Cracks Or Slides ok <br />Seepage ok <br />Other <br />Appurtenant Structures: <br />Primary Spillway ok <br />Secondary Spillway No Secondary Spillway <br />Other <br />Additional Comments: <br />Low spot on top of the dam which appears to be the cause of the gully. <br />Recommend adding material to raise the dam in the low area and filling in the gully <br />on the outside edge of the embankment. <br />Inspected By: ~ ~~~~ ~O~ <br />Kirk Allen Zabel <br />Colorado P.E. # 28855 <br />Date: September 26, 1997 <br />•c~~0~ O• NGyyTfp~s <br />;~ <br />r ~4i. <br />~~~.~~ONAL EN.VV•~`\\. <br />