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ACZ Ina. • • <br />Engineering and Analytical Services <br />1475 Pine Grove Road <br />~. Box 774018 <br />Steamboat Springs. Colorado 80477 <br />303~679~6260 <br />November 1, 1988 <br />Mr. Rick Mills <br />Environmental Coordinator <br />Yampa Valley Coal Corporation <br />29568 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 No. <br />Drainage No. <br />Drainage No. <br />Drainage No. <br />Drainage No. <br />Drainage No. <br />7-lA <br />31-1 <br />31-2 <br />41 <br />51 West <br />51 <br />hereby certify that these drainages have been constructed according <br />:o the design drawings and specifications prepared by Water <br />ngineering Technology. <br />.f you have any questions or require further clarification, please do <br />got hesitate to contact me. <br />sincerely, <br />;CZ INC. °~4~:~`p H. P,y <br /> <br /> <br />~ ~ ~ <br />~ <br />' ~c~,o <br />" <br />- <br />c <br />l~~ 17932 <br /> ,, <br />:onrad H. Parrish ~pF <br /> <br />;olorado P.E. X17932 , <br />,,F,~~;., <br />, . <br />~ <br /> t <br />E <br />r," <br />~ <br /> <br />::-IP: rce ' a/i <br />11Fn auc <br />._: Jeff McKenzie/CYCC <br />