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KENNECOTT ENERGY COMPANY <br />COLOWYO COAL COMPANY L.P. <br />ANNUAL IMPOUNDMENT INSPECTION <br />SMALL IMPOUNDMENTSISTOCKPONDS <br />DATE: 9I19I03 <br /> <br /> <br /> <br />m oundment Name Erosion, Instability, <br />Structural W eakness, <br />Hazardous Conditions <br />4.05.9 15 a <br />Monitoring procedures <br />and Instrumentation <br />4.05.9 15 b <br />Depth of <br />Impounded Waters <br />4.05.9 75 c <br />Elevation of <br />Impounded Waters <br />4.05.9 15 c <br />Existing Storage <br />Capacity <br />4.05.9 15 d <br />Other Structural Instability <br />or Maintenance Requiretl <br />4.05.9 15 a <br />Experienced <br />Impoundment <br />Ins ector 4.05.914 <br />Stock Pond A Annual Inspections <br />Stock Pond B Annual Inspections <br />Stock Pond C Annual Inspections <br />Stock Pond D Annual Inspections <br />Stock Pond E Annual Inspections <br />Stock Pond F Annual Inspections <br />Stock Pond G Annual Inspections <br />Stock Pond H Annual Inspections <br />Stock Pontl I Annual Inspections <br />Stock Pontl J Annual Inspections <br />Stock Pond K Annual Inspections <br />Stock Pond L Annual Inspections <br />Stock Pond M Annual Inspections <br />Stephen R. Hinkemeyer, Coloratlo P.E. 25436 <br />Date of Certification <br />CF 4.9 2003 Revised dI10~2003 <br />I, Stephen R. Hinkemeyer, being a Registered Professional Engineer in the State of <br />Colorado, tlo hereby certify that the information displayed in this table has been <br />reviewed by me and is true and correct to the best of my knowledge and information, <br />the above impoundments were maintainetl as designed, and in accordance with the <br />approved plan and applicable regulations. <br />Note: (d) impoundment volumes are estimated from pre-existing as-built surveys, <br />and estimates of accumulated sediment. <br />