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I <br />1 <br />1 <br />i <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br /> <br />ARMSTRONG ENGINEERS and ASSOCIATES, INC. <br />861 Rood Avcnuc Grand ~unc lion, Colorado 81501 -- (303) 245-38li1 <br />~- <br />~~~ <br />GFAIvD Aff:SA CO;,L CO': ~I'P,I7Y <br />R.EFPSE A.EF,A STAP,Il.i'IY AP,AL}'SIS <br />APPLICATIOrJ FOR A PEP,P1IT <br />TO COPJDUCT COAL MIPJIfJG IPJ COLORADO <br />REVISED May 8, 1981 <br />vowr~E ~~ of E <br />APPEyDIX B <br />ENGINEERING SURVCI'iNG SOILS ANU CONCRETC TESTING <br />