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There is no culvert referenced on either the map or in the text to allow passage of Ditch F-1 under the haul road extension north of Pit 1. Please provide new calculations accounting for this haul road culvert and update the maps to show both the cuivert and the haul road extension. ii. The Division cannot reproduce the acreage estimates for JBS 113/SWS 1 (Culvert 98> and J85 114/SWS 1 (Ditch F1 outlet). Possibly the differences are attributable to the county road intersecting the area. It seems that the road ditch would intercept floc, *rom the uphill side of the county road and flow into the last segment of Ditch F-l. For JBS 113/SWS 1 the Division estimates 4.44 acres rather than 18.50. for JBS 114/SWS 1 the acreage is closer to 18 acres rather than 6.2. Please explain your subwatershed boundaries and rerun all necessary calculations. c. The drainage area for haul road diversion Ditch 3 is represented as 7.37 acres. We find that the acreage is closer to 20 acres. Please provide information or corrections as appropriate to resolve this discrepancy. d. On page 23-151R it states "Riprap will be utilized in ditch sections where velocities exceed 5.0 feet per second." This is a proper design commitment. However, on Map 23-1 vegetated channels are shown for Ditcnes PD1 steep, PD2 steep, PD3 steep and G-2 where velocities exceed 5 fps. Please correct this map. e. Page 23-151R indicates that the listed ditches are shown in plain view on map 16a; however, none of the permanent diversion ditches are shown on that map. Please correct the text or the map as appropriate. f. The paragraph, (after the ditch list), on page 23-151R which begins "The majority of the ditches..." is incorrect in reference to the storm events related to clean water and permanent diversions. Please correct this information so it corresponds to the Pond & Ditch Design .Map 23-1. 6. Response Accepted. 7. Response Accepted. 8. Response Accepted. 9. Based on field inspection of the loadout site and review of permit maps, it has been noted that a 48 inch con crete Culvert exists in the drainage ditch at the loadout site. Please provide design calculations for this culvert, along with revised permit pages for inclusion into the section dealing with the loadout area hydrology.