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situ materials, and at the limit of placed till materials. With reference to Map 41A (5/19/06). the West Taylor East Tributary Ditch is a good example of a correct location. The West Taylor West Tributary Ditch would be out of compliance from Station 8 up. The East Taylor East Tributary Ditch needs to be moved slightly east to be off the fill. An East Taylor West Tributary Ditch is required on the west side of the permanent East Taylor Fill. The lower section of the West Taylor Central Tributary Ditch needs to be directed to a perimeter relief drain instead of going over the outslope (face) of the fill. Rule 4.09.2(6) The outslope of the fill shall not be steeper than 2h:1 v (50 percent). The Division may require aJlatter slope. The application is in compliance with this rule. Outslopes are proposed at 3.8horizontal to 1 vertical. (see page 6, Exhibit 21, Item 1). Rule 4.09.2(7) Surface water runofffrom the area above the fill shall be diverted away from the fall and into stabilized diversion channels designed to pass safely the runofffrom a 100 year, 24-hour precipitation event or larger event specified by the Division. Surface runoff from the fill surface shall be diverted to stabilized channels offthe frll which will safely pass the runofffrom a 100-year, 24-hour precipitation event. Diversion design shall comply with the requirements of 4.05.4. This is the most direct requirement for relocation of the proposed Wesi Taylor Central Tributary Ditch (Map 41A). A suggested comment to the applicant is: Please redirect the West Taylor Central Tributary Ditch to a relief perimeter drain in compliance with Rule 4.09.2('1). Please relocate the West Taylor West Tributary Ditch to the uppermost limit of the fill contact with in-situ ground. Please redirect runoff above the fills to the perimeter ditches. The general design for diversion ditches is for the 10-year, 24-hour precipitation event (see Exhibit 7, Item 20, Part F). However, permanent relief drains and diversions to them away from fills need to be designed for the 100-year, 24-hour storm event. Please redesign these ditches for the 100-year, 24-hour precipitation event. I will be out of the office the week of August 7 on vacation, and either the first or third week of August on field inspections. Please contact me if you have any questions.