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<br />BACICH ENGINEERING <br />~~. ~' y coNSrRUCnoN <br />~.x.e~ao~v.e SURVEYING t INSPECTION <br />801 CHESTNUT' ST. Peon. l~al sa6.6t71 <br />P. O. BOX 954 <br />1RDIIDAD. COLORADO S10S2 <br />Suadatics: Coal Company Inc, <br />Appendix A <br />Referred to on <br />Page 265-b <br />Inspection Report of Rock Underdrain as sfiaxn on <br />Exhibit F, made on ffov, 17, 1982. <br />I. Oversitse rock xae placed xith sufficent voids, <br />Ezliibit F indicates 8'" -10" riprap should be used. <br />Rock ranging in size from I ft. to 3 ft. xae <br />placed to proper ]ieight of 5 ft. with approximately <br />5 ft, top xith 2 to T slopes as specified is Exhibit <br />F, <br />• <br />2. Rock xae covered xitli finer materials ranging in <br />size of minus 1~2 inch to 3 inch. <br />~ It is the judgement of t.Iiis firm that tha rock <br />undardrain xaa not. constructed with the proper size <br />riprap as shoxn oa Ezihibit F, but the drain should <br />function jueit 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 />Y "••: <br />~ . •~ s~trte ••. ~ <br />• ~ • ~ .. t~' ~ .. <br />~. ~906~ ~'' . <br />479 <br />