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.. <br /> <br />• <br />Page 1 of 7 <br />CO-EN-S (Rev. 3/BO) <br />For Use With <br />"Peak Floes 1n <br />Colorado" <br />U.S. Department of Agriculture <br />Soil Conservation Service <br />Colorado <br />HYDROLOGY DATA SUMMARY SHEET _ <br />Sediment Pond /I1 <br />Project Name Carbon Junction Canyon Mine Location Pit Component <br />Compiled by PENCOR Date 11/5/82 Checked by Date <br />Basic Data for Determining Ileighted Soil Cover <br />Complex Number and Percent Impervious Area <br />~~ <br />Hydrologic <br />Soil Group <br />(Letter) Land Use, Treatment <br />and Condition <br />^ <br />Area <br />(Aces) Soil Cover <br />Complex '~o. <br />(ti•~(ue~er) Complex Xo. <br />Ti:-.es Area <br />(Cols; 3x<) <br />D PJ Rocky Surface 20 <br /> Vegetation Cover 145.0 87 l2 615 <br />D PJ North Slope b <br /> Mountain Shrubs <br /> Vegetation Cover 60 98.0 77 7,546 <br />D Pit Area - Hard Surf <br /> Disturbance at any 20.0 92 1 840 <br />TOTALS time 263.0 <br />22 001 <br />1:eichted Soil Cover Complex. :•.o. is (Total of fol. 5) ~ 22,001 84 <br />(;oral ei :.el. ?) ~- <br />Precipitation and Runoff for ?4 Hour Stem <br />~tor•.a Frequency <br />(yr•) Precipitation <br />(in.) coil fnver <br />Cc~^plex \o. Runoff <br />in.1 Ta .S-~ <br />!0 yr.-24 hr. 2.2 84 0.89 <br /> <br /> <br /> <br />`:o to: i'se either*lethod 1 or Method ° on the. fnlloving pages to obtain peal: <br />floc:. <br /> <br />