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Page 2 of 2 <br />NECC — Map 2.05.3 -7 Culverts and Ditches, was received by the Division on June 12th, 2013. <br />DRMS — Map 2.05.3 -7 shows the entire disturbed area. It has culverts marked and labeled C -1 <br />through C -19. An inset table shows the diameter of the culvert and the maximum drainage <br />basin area approved for that size of culvert. The map also shows culverts that are not the <br />responsibility of NECC (they are labeled "XTO "). Additionally the map shows drainage ditches <br />and the direction in which the flow. Ditches are labeled D -1 through D -20. The format of the <br />map is acceptable; however several issues remain to be clarified: <br />a. C -13 is not shown on the map <br />b. The data for C -13 in the table on the map is inconsistent with the data in table 2.053- <br />IA <br />c. Culverts C -14 through C -18 are all listed as 10" diameter, with a maximum drainage <br />basin of 3.75 acres. Since culverts of this diameter are not discussed in table 2.053 -1A, <br />please explain how the figure of 3.75 acres was determined <br />d. The table shows the maximum drainage area that is approved for a culvert of a given <br />diameter. Is there another map, table or section of the permit that breaks the disturbed <br />area into sub - basins or that shows the areas draining to a specific culvert or ditch'? <br />e. The ditch labels allow ditches to be identified on this map; are the same labels used <br />elsewhere in the permit? <br />NECC — A response and an updated version of map 2.053 -7 was received by the Division on <br />September 13, 2013. The response is sufficient. <br />10. Topsoil substitute. This issue has been resolved. <br />11. Implementation of contour furrows or straw bale dikes in accordance with approved <br />reclamation plan. This issue has been resolved. <br />12. Shrub transplants. This issue has been resolved. <br />13. Reclamation cost estimate. This issue has been resolved. <br />The proposed decision due date for RN3 is November 2, 2013. It would be prudent for NECC to request <br />an extension to this date in order to allow time for item 41 to be addressed, and the subsequent AVS <br />checks to be carried out. <br />Sincerely, <br />Leigh Simmons. <br />Environmental Protection Specialist <br />leigh.simmons(Astate.co.us <br />