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~~~ ACZ Inc. <br />Engineering end Analytical Services <br />1475 Pine Grove Road <br />PO. Box 774018 <br />Steamboat Springs, Colorado 80477 <br />303-879-6260 <br />November 1, 1988 <br />Mr. Rick Mills <br />Environmental Coordinator <br />Yampa Valley Coal Corporation <br />29588 Routt County Road 27 <br />Oak Creek, Colorado 80467 <br />Re: Final Inspection of Drainages <br />Dear Rick: <br />On October 31, 1988 ACZ INC. completed inspection of the recently <br />constructed drainageways. As you know, we inspected the drainageways <br />during their construction for gradient, channel dimensions, material <br />placement, and other relevant design parameters. You are already in <br />receipt of the ongoing inspection reports covering ten (10) inspection <br />trips beginning on July 15 and ending on September 30. The result of <br />the construction activities and the inspection work is that the <br />following drainages have been completed. <br />Drainage <br />Drainage <br />Drainage <br />Drainage <br />Drainage <br />Drainage <br />No. <br />No. <br />No. <br />No. <br />No. <br />No. <br />7-lA <br />31-1 <br />31-2 <br />41 <br />51 West <br />51 <br />I hereby certify that these drainages have been constructed according <br />to the design drawings and specifications prepared by Water <br />Engineering Technology. <br />If you have any questions or require further clarification, please do <br />not hesitate to contact me. <br />Sincerely, <br />ACZ INC. <br />C~,~ ~- Pao~t~ <br />Conrad H. Parrish <br />Colorado P.E. H17932 <br />CHP:rce <br />cc: Jeff McKenzie/CYCC <br />