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INTEROFFICE CORRESPONDENCE <br /> Date: July 4, 1987 <br /> To: Doug Bowman <br /> From: Scott Jones <br /> Subject: Sedimentation Pond Inspection, Third Quarter, <br /> 1987 <br /> On July 4, 1987, an inspection was made of all <br /> Mid-Contintinent Resources Coal Basin Sedimentation Ponds. <br /> The inspection was made by myself , a Registered Professional <br /> Engineer in the State of Colorado. I have had over five <br /> years experience in the design, construction and maintenance <br /> of sedimentation ponds. <br /> The purpose of this inspection was to ensure that all <br /> of the ponds were stable and hazard free and to satisfy the <br /> requirements of Rules 4.05.6(11 ) (c) and 4.05.9(10) (b) of the <br /> Colorado Mined Land Reclamation Division. The inspection <br /> consisted of a visual inspection of embankments, spillways <br /> and outlets and measurement of water and sediment levels and <br /> discharge volumes. Water levels are based on past survey <br /> information. Sedimentation levels were estimated based on a <br /> prodding stick and knowledge of the last clean-out date for <br /> each pond. <br /> The attached sheet shows the condition of each pond. <br /> Overall , the ponds at Coal Basin are in excellent shape and <br /> are functioning properly. <br /> Based on the above statements, I certify that the Coal <br /> Basin mine site sedimentation ponds have been inspected to <br /> the best of my ability and are in accordance with the <br /> Colorado Mined Land Reclamation Divisions Rules and <br /> Rea_u 1 at i or,s. <br /> RREG;S(, <br /> GOTTj'�y ` <br /> ame_ Scott -3,w No. c4`7, <br /> Y <br />