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<br />Mr. Notm Roche <br />Mazch 7, 2001 <br />Page 5 <br /> <br />Inc <br />Based on our analyses and the high factors of safety calculated, the aggregate mining, mine-related <br />disturbances, and subsequent reclamation activities should not compromise the stability of permanent man- <br />made structures in the area. <br />LIMITATIONS <br />Our review is based on regional geologic mapping, present mining plans, bore hole data provided by <br />Aggregate Industries West Central Region, Inc., and stability analyses using typical soil strength <br />parameters based on our experience. No laboratory analyses for strength parameters were performed. <br />Should the mining plans change or subsurface conditions vary from those pomayed in this letter, we <br />should be contacted in order to re-evaluate the potential affects on permanent man-made structures. <br />If you have any questions or corrunents, please call. <br />Sincerely, <br />ROCKY MOUNTAIN CONSULTANTS, INC. <br />Gary Linden, R.G. <br />Engineering Geologist <br />GL:do <br />Attachment <br />REFERENCES <br />Colton, R.B., 1978, "Geologic Map of the Bouldec-Fort Collins-Greeley Area, Colorado, U.S.G.S. Map I- <br />855G. <br />H: V 919_007~DMG~SubiliryMal.wpd <br />