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Colowyo, C1981 -019, PR3 adequacy No. 3 11 July 22, 2011 <br />2.05 of the permit for pond construction and maintenance details and to permit Section 4.05.6 for a <br />discussion of quarterly inspections. <br />2.05.3(4)(ii) Detailed Design Plan <br />Detailed designs are provided in Exhibit 7 Item 23 (Figures I and 2). Geotechnical analysis <br />and stability evaluation for the Pond Embankment are found in S& W pp. 14-15 and Fig. 11. <br />(A) The designs hase been certified by a registered P.E. No response required. <br />(B) The Division notes scceral discrepancies between the notes on S &W Fie. I I and the <br />notes provided with Esh. 7 Item 26 Fig. I, as follows: <br />Fill Materials: S &VS Iisl,so,l hpes SM. SC. Gill. GC and CL ns "ucceptahle' sshile <br />Fig. I list,. SC, CC.51. and CH. S & \A'states that high pltutieity clue ,ind sills (( II and <br />-IL) are "unaacrptuhle". Fig I does 11,11 exclude these matel ials. and in tact Gsu (. H as <br />_ecceptublc °. <br />Fill Placement and Compaction: S &AV lccoinmcud shut (he nlouwrr consent be <br />soi(hin 0 to A op(iuuinl uwixtutc comcur, Fig. I requires OAI( <br />V lonitorinr and Inspections: S &AA rcn)tnulc11d that a inonitolm'. p")int be se( ut th< <br />crest of the dn(h.mkincnt. and u1c:1su1a1 qu,nrerh bsr the first ro.1r .111Cr :un >r LIC6111). <br />I ie. I does nut nleniion a mnniiori m, point. <br />Please revise EvAlihil '!tern 26 Fi;;ure 1 to he consistent with the rerunurreudntiners <br />Presented in the .S& II Stabiliti llvdurnion. <br />Figure I of Lxhibil 7 11o111 26 uses the scord "Should" when retcrring to site preparation <br />and till placement. Please replace "should" with "will" or "shall'. <br />(C) Operation and maintenance requirements arc described in Collura Rule 4 Section <br />4.(15.6. ;Vo response required. <br />(D) Timetable and plans tier remosal e erc not found in the application. Please revise <br />Section 2.0.5.3(4) to address the renmval of t /re Sump and Pond. <br />3. 2.05.3(4) — Applicability - Little Collwn Pond — Embankment Height is 20 tcet: surface area is <br />2.61 acres: capacity is 19.55 acre -feet. <br />The State Eneiucer requircmattS of 2.Oi.3(4aiii) (( R,S, 37 -57 -105) are applicable to the Little <br />Collom Pond. <br />Rule 2.05.3(6) Overburden <br />1. Please assure that appropriate detail required by Rule 2.05.3(6) is included in the Operation and <br />Reclamation plan. Discussion of the pit dimensions, swell factor and blasting detail was not <br />found in Section 2.05.3(1) Operation Plan, or Section 2.05.3(6) Overburden of the PR3 <br />application, nor was there a discussion of where this information could be found in the <br />