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2, The applicant should also include a thorough discussion of each road <br />considered to be an existing structure in accordance with the requirement <br />of 7.05.3(3)(b). Much of the detail required by (I1 above could be used <br />in this discussion. <br />3. The Division must make a written finding concerning operations within <br />100 feet of a county raid pursuant to Rule 2.07,6(2)(d)(iv), Therefore, <br />the applicant is requested to submit documentation approval from the <br />county authority. The Division is also required to hold a public hearing <br />in the affected locale, which we will plan to hold sometime in May. <br />2.05.3(9) Ponds, Impoundments and Diversions <br />1. There are several ponds shown on the maps which are not discussed <br />in the text. These ponds are 9-P1, 9-P2, 9-P3, 5-P3, 5-P2, SA-P2 and <br />SA-P3. The design flows, storage volumes and all the requirements of <br />Rule 2.05.6 must be addressed before the system can be evaluated (Rule <br />9.05.1(1]). <br />2. The culvert system is not detailed in the application. Empire Energy <br />must present information on design peak flows, culvert diameters and <br />inlet configurations in order to evaluate the designs. <br />3. Ditch designs have been found to have greatly different velocities <br />than the assumed velocity given in designing the ditches. This is due <br />to the fact that the designed ditches have a different area and wetted <br />perimeter under the desiyn flow than those given by the desiyn technique <br />used. Empire Energy must determine the actual ditch velocities for <br />aZZ ditches from the design dimension and estimate of peak flow given. <br />IF velocities become erosive for the ditch linings given, Empire Energy <br />must submit information on appropriate ditch Iining material to prevent <br />erosion (Rule 9.05.3(6](a]). , <br />9. The area tributary to the runoff collection system feeding the stock <br />pond appears to extend beyond the area delineated by Empire Energy. <br />Empire Energy must provide a map showing the entire area tributary to <br />the pond and meet the applicable standards given in U.S. Soil Conservation <br />Service Public Standard 378, "Ponds", October 1978 (Rule 4.05.9(1](e]). <br />5. Ponds SP-4 and 9-P3 appear to overlie the abandoned underground workings. <br />Empire Energy must address the problems of pond dewatering through faulting <br />and bank stability. Empire Energy must submit a proposed monitoring program <br />for all sediment control structures which overlie projected and active <br />subsidence areas to address the above concerns and those related to the <br />protection of the hydrologic balance (Rule 4.05,1(4J(c](ii]). <br />6. Ditches 9-Dl and 9-D2 will intercept undisturbed flow as designed <br />unless berming or other precautionary measures are undertaken. Empire <br />Energy must submit a plan for preventing undisturbed surface water from <br />entering the sediment control system and exceeding its design capacity <br />(Rule 4.05.3) . <br />7. Drawing IV-37 of ponds 9-P9 and 9-PS gives information on inlet and <br />outlet ditches which are inconsistent with information contained in <br />drawing IV-9 on the sediment control system. Pond 9-P4 in drawing IV-37 <br /> <br />