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<br />Figure 2.05.3-46 was not provided. Further, the designs for the "shop building", "supply <br />building", "bath house", and "office building", described in revised Table 3.02.2-1 as <br />having concrete floors and/or footers, were not provided. Please provide this information. <br />Rule 2.05.3(4) Operation Plan -Ponds. Impoundments and Diversions <br />84. Pond designs for the Pl/P2 portal, P3 portal, and Fill 9 were reviewed and the following <br />problems were noted: <br />P1~P2 Portal pond and fill pond designs (EX 15-1 and 15-13) <br />a) Culvert and ditch labeling should match EX IS-1 exactly <br />b) The elevation of the lowest set of holes disagrees with the sedimentation pond <br />summary. <br />c) The stage-storage table was not found in the submitted materials <br />d) The hydrograph detention time of 45 minutes seems rather low. Can this be <br />increased? <br />e) The elevation-azea-capacity-dischazge table indicates a low orifice at a capacity of <br />.21 ac-fr but the pond results give a permanent pool of 1.24 acre-fr. Why? <br />f) The culvert at 180+94 is not on figure EX 15-1. <br />g) The Division believes that the fills at the portals should be protected by ditches <br />designed to divert the 100 year event, due to the length of time these temporary <br />fill structures will be in-place. Also, it would be appropriate to refer to these <br />temporary structures as temporary overburden stockpiles to avoid confusion with <br />designed fills. <br />h) Ditch 8E is missing from table 15-13A <br />i) The clean water diversion ditches are missing from Table IS-13A <br />j) Where is the information presented for culvert LAR 187+17 in tabulaz format? <br />P3 Portal pond and fill pond designs (EX 15-2 and EX 15-12) <br />a) Can the inlet ditch to P3 fill pond 006 be routed to enter the pond at the southwest <br />end? Currently, the pond inlet enters in the middle of this narrow pond, rendering <br />1/2 of the pond as dead storage. If the inlet cannot be relocated, please rerun <br />design calculations using 50% dead storage. <br />b) The pond volume for this pond is depicted on EX15-14 as 139 ac-ft. Is this <br />