Laserfiche WebLink
diagram and the routing shown on Map 54, from the stockpile to culvert C2R-3. Please <br />revise any SEDCAD runs, if appropriate. <br />34. The routing diagram for pond MB-2R shows that culvert C2-6 flows into ditch D2-7C, <br />which, then, flows into ditch D2-7. However, Map 54 shows that culvert C2-61ies <br />between ditches D2-7C and D2-7. Please reconcile this difference. <br />Refuse Waste Pile Expansion <br />35. The Division understands that the submittal of the refuse pile expansion SEDCAD <br />designs are meant to replace the current designs in Appendix L of Volume IOB. <br />However, the only SEDCAD designs submitted are for the three drainage areas <br />designated as RPE1, RPE2 and RPE3 (presumably drainage areas designated 51, 52 and <br />53 on Map lE) and the 10 year-24 hour event for the RPE pond. It appears that <br />additional material needs to be submitted, such as the SEDCAD pond designs for the 25 <br />year-24 hour event, SEDCAD designs for the proposed cleaz water culvert shown on <br />Figure L-1 and SEDCAD designs for the clear water ditch. <br />Also, revised maps, which relate directly to the SEDCAD runs, may need to be <br />submitted. For instance, the acreages that are used in the RPE pond SEDCAd designs do <br />not appear to conform to any of the acreages shown on the maps in Appendix L. Also, as <br />has been previously mentioned, drainages RPE1, RPE2 and RPE3 do not appear on any <br />map. Also, Figure L-3 refers to channel segment numbers which do not seem to conform <br />to any SEDCAD run. Also, a clear water ditch and a sediment control ditch are drawn on <br />Figure L-3 but no designation is given and with no obvious reference to any SEDCAD <br />run. If these statements are incorrect, please inform the Division as to the correct <br />situation. <br />If the Division's understanding is correct, please submit these revised materials. If this <br />understanding is incorrect, please submit instructions as to which material is to be <br />replaced and which material is to remain in the permit application. <br />36. The SEDCAD drainage basin peak flow designs for the refuse pile expansion drainage <br />basins are designated as RPEI, RPE2 and RPE3. However, on Map 1 E, they are <br />designated as numbers 51, 52 and 53. In order to avoid confusion, please make these <br />designations consistent. <br />37. Ditches DCW-8A and DCW-8B are not shown on Map 54. Please revise this map to <br />show these two ditches. <br />38. The SEDCAD ditch utility designs for ditches DCW-8A and DCW-8B show that the two <br />ditches are to be vegetated. However, the entries for these [wo ditches in Table 44E do <br />