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• Getty Mining Company <br />March 26, 1985 <br />Page 6 <br />rainfall without overtopping the Sedimentation Pond F <br />embankment crest. <br />(5) It is recommended that, because the existing elevation <br />of the dewatering hole in the decant structure is at <br />an elevation lower than that needed to store three <br />years of sediment, that sediment accumulation not be <br />allowed to rise above elevation 98.0 feet in Sedimen- <br />tation Pond F. <br />GENERAL INFORMATION <br />Professional judgments presented in this report are based <br />partly on the evaluation of technical data and information <br />provided to us, partly on our knowledge of conditions of the <br />area, and partly on our experience with similar projects. Our <br />engineering work and judgments meet the standard of care of <br />our profession. We do not guarantee the performance of the <br />project in any respect. <br />• CREDITS <br />This study was conducted under the general supervision of Dr. <br />Timothy D. Steele, Water Resources Manager of In-Situ, Inc. <br />Dr. James R. Kunkel, Senior Project Engineer, performed the <br />analyses and prepared the draft of this report which was <br />reviewed by the undersigned Principal of our firm. Data and <br />information related to existing and proposed facilities were <br />provided by Mr. Kent A. Crofts, Supervisor-Environmental <br />Services and Mr. Joseph R. Tyburski, Geological Engineer-Coal <br />of Getty Mining Company. <br />If you have questions or desire additional information, please <br />c a 11 . ~tam~ rr,,,,;•, <br />urs truly, '~"r;.~.~~' <br />/ !0 r' <br />LLrr 3 III ~ ~~• <br />GJames R. Kunkel _ - <br />Senior Project Engineer - <br />'~ ~ G V ~,• nl . <br />Reviewed by ~"' ~`,'~`!'''" <br />Phil C~ertallt~~^/+r :~:j~7 ',i <br />, <br />• Principal ~~ =+ '~ <br />~~, is <br />JRK:kot ~•`lf'~ CC~~'••`` <br />'•-:..~ <br />