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r <br />3 1;-2 <br />1 <br />i <br />r� <br />, <br />0 <br />o <br />Little Collm Sump 00 {: o <br />(See Exhibit 7, Item 2a Figure 2) <br />M <br />ra <br />O <br />d / <br />r00 617 <br />O � <br />i d ( -- <br />; <br />c' 0 <br />o n o <br />i <br />° <br />o ,n o _�A -- - -- 5 15 <br />o o / <br />-� <br />`'� o 0 0 2 0 75 <br />0 <br />f <br />0 5Z - <br />� 5 ` <br />0 0E <br />Iz- <br />- �- - <br />ENGINEER'S CERTIFICATION Exhibit 7, Item 23, Figure E 1 <br />being a <br />LEGEND /,THOMAS C. PETERSONON, , bet ng a <br />Licensed Professional Engineer in <br />the State of Colorado, do hereby Tem p r oral y Channel Design <br />SECTION LINE N certify that this map has been <br />PROPOSED V DITCH reviewed by me and is true and <br />TRAPEZOIDAL DITCH correct to the best of my knowledge scgE V. = soo <br />unre: <br />and information relying on work 12115110 <br />NOWS: The worst case condtition reflects the performed by others and based on APPROVED E . T <br />- - -- CLEAN WATER DITCH Colowyo C� gppROVED 8Y: TCP <br />extent of clearing topsoil and stripping w E information supplied by experts 5731 state Highway 13 <br />TEMPORARY OVERBURDEN on all disturbed areas at 6 months from identified in section 2.03.3 of the �'• eke` c °'oa <br />17 2010 <br />STOCKPILE OUTLINE commencement of construction. Colowyo Coal Company L.P. Permit. � <br />PMT TIE -IN Watershed boundaries are shown on E th. 7 -23 Figure Al. t � W'4 2 <br />SEDCAD Seeo min modeling the fion of <br />Exth ditches <br />3 Figure E2 for other eS. A S �����``p�P� 0 t'L l CFA���i� No. REVISION DATE BY HK ovi O��•P`'C•PeTF•�F i <br />• P <br />�' • r° o • � p PR03 NEW MAP 12115110 TOP KRB <br />0 530 000 32257 ' <br />• z/ fS�a.• �� <br />lV <br />Contour Interval 25 FT. '���iD�FSS •••'•'••• �'`�Q <br />TOPO: Premine Topography IONAL�� <br />THOMAS C PETERSON <br />P.E. No. 32257 <br />IZ119l eD <br />DATE <br />