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25. There are no engbreer's cer[ificntiorts on the design drawings 2.05-MSC, "Sedirneruation <br />Pond C ", 2.05-MSE, "East Yard Sedimentation Porrd ", 2.05-MSG, "Upper Hubbard <br />Gulch Sedimentation Pond " cord 2.05-MSH, "Sanborn Creek Mine Dewntering Pond. " <br />Please provide revised drawings that hove the certifications. <br />OMLLC will be submitting a revised drawing of Map 2.05-MSC for Pond C. The revised <br />drawing was requested to add the signature of the P.E. who was certifying the designs <br />and to change the storage capacity table to state Pond C, instead of Pond B. <br />In the November 2001 submittal, OMLLC supplied labels that are [o be attached to the <br />original certified copies of the pond drawings for three ponds. The East Yard Pond as- <br />built drawing is to be labeled as Map 2.05-MSE, the Upper Hubbard Gulch Pond as-built <br />drawing is to be labeled as Map 2.05-MSG and the Sanbom Creek Mine De-watering <br />Pond as-built drawing is to be labeled as Map 2.05-MSH. The uncertified drawings for <br />these three ponds that were submitted in PR-04 will not be placed in the permit <br />application. <br />26. /t appears drat there are no ns-built certifications for the sedimentation ponds drat have <br />been built nt the Sanborn Creek Mine. An ns-built certification should state that the pond <br />in question has beers built according to the designs. Please either stole where in dre <br />penrrit application these certifications are or provide such certifications. <br />The Division will add a stipulation to the approval of PR-04 that will require the future <br />submittal of the sediment pond as-built certifications. <br />27. For a clearer picture of the way rite pond is constructed, the Division believes thn! <br />several of the pond drawings should show the positions of the primary atd/or emergency <br />spi[hvays in bout the cross sections and plan views, even t{rotrg{t the spillways might rrot <br />fall along the cross sectional slice of the drawing. Drawing 2.05-MSA does not show, in <br />either dre plan view or the cross section view, that a portion of the road aces as an <br />emergency spit/way. Drawing 2.05-MSB does not show the primary spillway in either the <br />plan view or the cross section view. On dre scone drawing, the emergency spillway is not <br />shorwt on the cross section view. Drawing 2.05-MSG does not show the prirrmry and <br />emergency pipes in dre cross section view. On drawing 2.05-MSH, the primary and <br />emergency spillway pipes are not shown on the cross section view. Please provide <br />revised drawings. <br />The stipulation described in item number 26 above will include the requirement for the <br />future submittal of the sediment pond spillway information. <br />