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STATE OF COLORADO <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br />1313 Sherman Street, Room 818 <br />Denver, Colorado 80203 <br />Phone (303) 866-3581 <br />FAX (303) 866-3589 <br />http://www.water.state.w.us <br />Mr. Phillip Solseng <br />Barr Engineering Co. <br />4700 West 77'" Street <br />Minneapolis, MN 55435 <br />RECEIVED <br />SEP 21 2001 <br />urvw~~~ ~ ~~ ~ ~c~tamation, <br />Mining and Safety <br />September 20, 2007 <br />When replying, please refer to: <br />MONUMENT DAM <br />Construction File No.: C-1676A <br />Water Division 4, Dam ID: 400413 <br />Subject: Review of Change Order No. 1 - <br />op c <br />ad <br />N°% ~ '-. <br />.~. <br />~,a,s~ <br />Bill Ritter, Jr. <br />Governor <br />Hams D. Sherman <br />Executlve Director <br />(vacant) <br />State Engineer <br />Contingencies on the Approval of the Monument Dam Modifications Plans and Specifications <br />Dear Mr. Solseng: <br />Thank you for submitting Change Order No. 1 for the Monument Dam Modifications in Gunnison County <br />for our review and acceptance in accordance with Rule 9.1.8 of the State of Colorado's "Rules and Regulations for <br />Dam Safety and Dam Construction." This change consists of modifying the fine filter gradation, removal of the <br />geotextile downstream portion of the dam, and modifying the 24-inch-diameter RCP concrete cradle to remove the <br />flow fill below the pipe. <br />Based on our review of the Change Order as presented in your letter dated September 7, 2007, we find that <br />the proposed changes and modifications acceptable and approved effective as of the date of this letter. If you have <br />any questions concerning this matter, please do not hesitate to contact Paul Perri in our Denver office at (303) 866- <br />3585 ext. 8274. We look forward to our continual with you on this construction project and to achieving a <br />successful completion of this project. <br />Sincerely, <br />~~ ~~ <br />'~rvJack G. Byers, P.E. <br />Deputy State Engineer <br />xc: Wayne Schieldt, Division Engineer <br />Mark Haynes, Chief of Dam Safety <br />Paul Pem, Design Review Engineer <br />Jason Ward, Dam Safety Engineer <br />Dan Hernandez CO Division of Reclamation, Mining and Safety <br />Phil Schmidt, Mountain Coal Company, L.L.C <br />Willy Kistler, Minnesota Canal and Reservoir Co. <br />H:VNcElroy\07sep20monumnetCOl.doc <br />