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• <br />y BACICH ENGINEERING <br />~~~ ~' coNSrRUCnoN <br />~.x.e~ao~v.e SURVEYING t INSPECTION <br />801 CHESTNUI'ST. Phon~13031846.6t71 <br />P. O. BOX 954 <br />1RDIIDAD. COLORADO !110tH <br />Sundatics: Coal Company Inc, <br />Appendix A <br />Referred to on <br />Page 265-b <br />Inspection Report of Rock Underdrain as sfiawn on <br />Exhibit F, made on ffov, 17, 1982. <br />I. Oversitse rock xae placed xith sufficent voids, <br />EzhiBit F indicates 8'" -10" riprap should be used, <br />Rock ranging in size from 2 ft. to 3 ft. was <br />placed to proper fieig}it of 5 ft. with approximately <br />5 ft, top with 2 to T slopes as specified is Exhibit <br />F, <br />• <br />2. Rock xae covered xitti finer materials ranging in <br />size of minus 1~2 inch to 3 inch. <br />• It is the judgement of t.His firm that tha rock <br />undardrain xaa not.conatructed with the proper size <br />riprap ae shoxn oa Ezihibit F, but the drain should <br />function just as xell xith larger rock, Therefore the ap- <br />proval xae given to cover the drain and begin the embankment, <br />Signed; <br />ohn fb Hacich <br />P, E, 9869 <br />r ••: <br />.~ ` C • <br />.~~. rr~~.`,, .J <br />479 <br />