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i <br /> 5655 <br /> 5655 <br /> 5650 -- <br /> _ 5650 <br /> 56455645 <br /> 5 5640 <br /> s�o 5640 <br /> ................. ---------_------- <br /> 5635 <br /> ....... 5635 <br /> 5630 <br /> _---. -_-- ___ _ ____- 5630 <br /> 5625 <br /> E <br /> 5615 _ --___- _ _ -_-____________ _____ _ _ <br /> 5625 <br /> 56205620 <br /> 5615 <br /> r <br /> 5615 <br /> i r <br /> 5610 <br /> . _ -_- _ ----=--- - - - - __ _ _ 5610 <br /> I <br /> B CP �ro2° 5620 s19_..___-- 0+00 1 +04 2+00 3+00 4+ <br /> 00 5+00 <br /> 5618 5617. <br /> 5616 5615_:.::' <br /> C� <br /> 5614 5613 <br /> Cn Hor. Scale 1"=100' _ __ __ Current Topography <br /> i <br /> Vert. Scale 1"=20' Completed pond topography <br /> . � <br /> 0 <br /> 5625 <br /> _ 5625 <br /> 5620 <br /> 5620 <br /> 5615 <br /> e 5615 <br /> CP <br /> 5610 <br /> 5610 <br /> 0+00 1 +00 2+00 3+00 4 +00 <br /> Scale 1" = 19 <br /> Enstrof-10-1 ay <br /> Dravv t11,`N <br /> sp <br /> ' y <br /> Emergency Spillway Cross Section <br /> s6'3 Control Section <br /> S2o Ssr$ Crest El. 5 620.0 ,- H __ 0.56' <br /> Control Section Eh 5618.0 <br /> ' <br /> 5� 20 <br /> 3 <br /> Emergency Spillway Hydraulics <br /> Control Section, 25 Year Event with Full Pond <br /> Q - CLH �2 <br /> Q =21.7 cis <br /> C =2.63 <br /> L =20 ft <br /> H =0.56 ft <br /> TM Required control section freeboard is 0.3 feet.Available freeboard is 1.44 feet. <br /> ENGINEER'S CERTIFICATION <br /> BB Road ���pDp CIC� I, Jason S. Storejy, hereby certify that this map <br /> p °°°°°°°°°°. ► has been reviewed by me and is true and <br /> S Sr0!0 correct to the best of my knowledge and <br /> 0�; information, relying on information supplied <br /> 4.8092 by experts employed by New Horizon Mine <br /> and that I air, a Professional Engineer <br /> licensed in Colorado as required by the <br /> provisions of C.R.S. 12-25-101 through C.R.S. <br /> �oNAL EN\ 12-25-119. IN WITNESS g <br /> Pond <br /> Plan <br /> vlew <br /> ESS WHEREOF I have <br /> hereunder set may hand and affixed my seal. <br /> JAPPN S. STOREY <br /> Nor;M <br /> 92 <br /> Construction Notes `.E. te TR-84 <br /> 1. Site Preparation: W <br /> DATE Approved 9/11/18 <br /> This site has a verylimited amount of fill lac impoundment <br /> p ement, as the is largely <br /> subgrade. Prior to placing fill, the area will be stripped of any organic or other deleterious <br /> Legend <br /> materials. <br /> Permit Boundary <br /> 2. Acceptable Fill Materials. ARV �,o <br /> Suitable fill materials can be obtained from pond excavations or from nearby borrow sources. S ,�� - Profile <br /> Suitable materials include native la soils clayey sand r m `clay y y a d soils,and bedrock materials which are 50� o� 50} 100� ���,��. .___. _ Completed Pond Contour <br /> broken down to these soil types (SC, CC, CL and CH). Bedrock materials will be processed �� �� <br /> em;fto produce a soil like material with maximum particle size of 6 inches. The materials used as Creams <br /> embankment fill will have at least 25 percent fines (material finer than No. 200 sieve). The 1" = 50' Attachment 2.95.3(3)-29, Page 7 <br /> field engineer may approve the use of other materials following appropriate laboratory testing. Topo,Postmining Topography outsije of construction lirnits, <br /> Pond location: SE1/4 SW 1/4 Section 36 T47fN R16w <br /> with constructed pond topography within construction area. <br /> 3, unacceptable Fill Materials: Contour Interval 5 foot, with 1 foot contours within pond area <br /> Materials not considered suitable for use as embankment fill include cleaner sand and gravel. Area-CapacityTable Pond 0 16 Plan View and <br /> Also unacce table are hi hl carbonaceous materials obtained from bedrock excavation r <br /> p highly S ° Elevation Area Area Ave Area lucre. Cum Design Details <br /> well-cemented sandstones which do not break down to soil like material. organic soils or (feet) (ftq (acres) <br /> (acres) ( ft s acres acres ac- ac-ft) <br /> materials containing construction debris are also not acceptable. Frozen soil is not ( <br /> 0 1.23 <br /> acceptable. 5613.0 5341 0.00 <br /> SCALE: ..scale As Noted <br /> ORIGINAL DATE. J 1128/201.5 <br /> 1.26 26 DWG.BY. ESI(TCP <br /> 4. Fill Placement and Compaction: 5614.0 56081 1.29 1.26 •••• APPROVED BY., FKF <br /> Embankment fill will be placed in thin horizontal lifts (8 to 12 inches loose thickness). The fill 1.32 <br /> will be moisture conditioned to within 2 percent of optimum moisture content and compacted 5615.0 58815 1.35 2.58 YORiz0e4 <br /> New Horizon Mine DWG NO, Map 2 <br /> to at least 95 percent of standard proctor maximum dry density (ASTM D 698). The placing 1.38 1.38 Perm;tNo.C-,_%i-008 �( //''�� (� <br /> and spreading of fill materials will be started at the lowest point of the embankment Fill 5616.0 61612 1.41 3,96 <br /> P.0 Box f28,Nuda,CO.81424 Attacht77ent 2.05.3(3)-29 <br /> placement and compaction will be observed a7d tested by qualified engineering firrm. 1.45 1.45 No. REVISION DATE BY CHK <br /> 5617.0 64472 1.48 5.41 TR- <br /> 5. Pond capacity is an estimate based on bedrock conditions. These conditions may result 70 New design for Pond 016 1/11 16 T FKF <br /> 1.52 1.52 / CP <br /> in final capacity of the pond to vary by 0.5 acre-feEt from that shown in the capacity table, 5618.0 67394 1.55 <br /> 6.93 TR-73 Updated Permit Boundary 5119116 TCP FKF <br /> TR-84 Update postmining topography 7/6118 JSS TT/FF <br /> FILENAME:Map 2 Pond 016 Map 2.05.3.dwg <br />