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2. Response II-c indicates that EFCI would like to establish breaks in the safety berm south of the north perimeter ditch at the East Loadout. Staff is concerned that significant gullying will result at each of the breaks. Evaluate the velocity of the water passing through these proposed breaks to the ditch, and indicate how EFCI would be minimizing disturbance of the prevailing hydrologic balance and preventing additional contributions of sediment within the permit area (Rule 4.05.1(1)). 3. Review of the demonstration for the small area exemption on the sediment trap on the southwestern corner of the East Loadout area resulted in several questions: a. The drainage area for this small area exemption includes runoff from the ridge to the southeast, as far east as the east Loadout drainage divide. Please re- evaluate the acreage used in this demonstration. b. Review of SCS Agronomy Note #50 indicates that the Rainfall and Runoff Factor for the Florence area Loadout is 50, rather than 40. c. The LS factor seems very low. Please re-evaluate it in light of this observation as well as in consideration of the topography of the revised watershed. d. Please re-evaluate your calculation of the catchment basin geometry with regard to consistent use of the 4.5' depth and the length of the pond (20' or 26'). In addition, do all four sideslopes of the catchment basin have 1.5 H:1 V sideslopes? 4. Adequacy questions for the truck turn-around small area exemption parallel several of the adequacy issues for the southwest sediment trap - i.e. the rainfall amount can be decreased; the Rainfall and Runoff Factor (R) should be 50, rather than 40; and the catchment basin geometry should be re- evaluated to be consistent with a 4.5' depth. 5. Staff believes that one of the objectives of modifying pages 2R and 3R was to add the Loadout area small area exemptions to the list. This was not done. 6. The culvert at the entrance to the west Loadout, along County Road 79 must be sized to handle a 10-year 24-hour event per Rules 4.03.1 (4)(e)(i)/4.03.2(4)(e)(i). Please re- work the hydraulics on page 184R. 7. Please revise the table on Map 26 which documents the ditch design details to reflect the fact that the design flow utilized the 5-year 24-hour storm event per page 173. 8. The perimeter berm at the west Loadout is established to maintain water within the Pond L2 watershed. In addition, it appears that the northern portion of the berm keeps water from 2