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~ (3)(c) Approval of PRO1 was a arentl <br />pp y given without concern for access <br />pads to CRDA #2 or #3. Such roads are not indicated on Exhibit(51 or <br />L2. None are identified nor are specifications provided in any table <br />or with any narrative in the permit application package. A revision to' <br />add these roads to the permit application mist be made. In addition, l:'''~ <br />there is presently no c~u,_lvert under the access road to CRDA #2 where it <br />crosses the approved Perim to er containment ditch. Addition of such a ~~ <br />culvert and any others necessary to proper drainage of these roads J~,'~,~' <br />should be made part of the revision and supported with calculations <br />demonstrating proper capacity. Su mnary tables where mention of these <br />roads and drainage structures is normally made in the permit <br />application package should also be revised. <br />r,~ ,~ <br />There is no Exhibit A available to the Division as referenced on <br />p. 149. Such should~e provided and should be current. ~;~~~ <br />(4)(a) Table 2.05.3I p. 168 does not contain a listing of the ~ <br />diversions or containment ditches associated with CRDA #2, of the <br />diversion of Coai Canyon drainage or of the diversions/catchment <br />ditches associated with Ponds 4 & 5 at the Cameo Mine. The Table <br />should be updated to include these structures. <br />~~ a`~ <br />Mention in the narrative on pp 170-171 should include the diversions <br />and ditches for CRDA #2. <br />Narrative on p. 173 needs to be revised and supplemented. All sediment ~~< <br />ponds etc, are not covered in Appendix X, only Ponds 1 through 8 are. <br />(4)(b) Sediment Ponds 1 & 2 are indicated on p. 177 to involve two <br />natural depressions. As a result, these do not have the configuration <br />dimens•tons of the designs apparently approved for these ponds in <br />R~~endix X~ Drawings, supporting calculations and engineering <br />cer~ti`i-eaYions need to be furnished to establish that these ponds do ~~ r\ <br />have adequate capacity and otherwise conform to the requirements of ~ <br />Rule 4.05.6(3). <br />(4)(d) The narrative on p. 171 should be revised to state which types <br />of ditches are designed for 10-year, 24-hour events. Ditches <br />associated with the refuse area are required to be able to pass ~~`' <br />100-year, 24-hour events. <br />There are two culverts in the eastern containment ditch at CRDA #2. If <br />these have a purpose and are intended to remain in the ditch, their <br />capacity to pass the required flow in the ditch must be demonstrated ,~~~ <br />and this information as well as evidence of the existence of the <br />culverts must be included in appropriate parts of the application <br />package. <br />Additional sediment control items: The hay bale "berm" around the <br />s orage area a e ameo pine s outd be added to Exhibit 8 B to 1 <br />document the means of runoff control for this area which otherwise , <br />would appear to lie outside the surface water and control system. <br />-8- <br />