Laserfiche WebLink
III IIIIIIIIIIIIIIII <br />HICIIA H~~ O l AMM <br />GOVT ~eNOR <br />,.,..k <br />.'d';f;~ <br />~,~:J 11 <br />~.. „` ~Mc <br />UHF MJf~ <br />COLORADO GEOLOGICAL SURVEY <br />DEPARTMENT OF NATURAL RESOURCES <br />REC~14'cC <br />MAR 4 1977 <br />. ,.:,;lh <br />ULi iii~i „i%NI JOHN W. ROLD <br />Director <br />716 STATE CENTENNIAL BUILDING - 1313 SH ERMAN STREET <br />DENVER. COLORADO 80203 PHONE 13031892-2611 <br />March 2, 1977 <br />Mr. Doug Tiefel <br />Boulder Co. Planning Dept. <br />P.D. Box 471 <br />13th and Spruce St. <br />Boulder, Co 80302 <br />Dear Mr. Tiefel: <br />RE: WESTERN PAVING, WENG FARM AMENDMENT <br />This letter is in response to the proposed expansion of gravel min'ng <br />operations by Western Paving Construction Co. at its existing pit east <br />of Lyons. The 194-acre parcel lies in secs. 22 and 27,T 3 N, R 7o W <br />and lies on gravel deposits shown as "F1" on the Colorado Geologic<Il <br />Survey gravel resources map of the Hygiene quadrangle. Based on our <br />mapping and on the location of Western's present operation, the area <br />proposed for expansion is definitely a commercial mineral deposit with <br />a reserve well in excess of 3,000,000 tons. <br />Based on the information presented and on my own visit to the present <br />operation, 1 can see no serious geologic problems involved with expansion <br />into the area west of St. Vrain Creek. Final slopes and buffer zones <br />along the creek appear to be quite adequate. The accompanying repcrt <br />by Wheeler and Associates shows that the company's original water-rights <br />purchases will adequately offset the increased evaporation in the final <br />ponds. I strongly concur with the Wheeler recommendation of additional <br />water table monitoring wells, which likely have been installed by now. <br />I therefore urge approval of the proposed amendment to the existing special- <br />use permit within the conditions of state and county regulations. <br />If I can be of assistance, please contact me. <br />Sincerely, <br />Stephen D. Schwochow <br />Engineering Geologist <br />SDS:rh <br />cc: Mac Graham <br />Western Paving Construction Lo. <br />1400 W 64th Ave. <br />Denver, Co 80221 <br />GEOLOGY <br />STORY OF THE PAST ...KEY TO THE FUTURE <br />