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• The revised Structure Summary (page 53) and revised Subwatershed <br />Hydrology Detail (page 57) does not match the information contained in <br />the 100-YR event SEDCAD demonstration for Structure Detail beginning <br />on page 54 of the existing permit application. The Subwatershed <br />Hydrology Detail for the 100-YR event was revised with the December <br />submittal but the Structure Detail was not changed with either the October <br />or December revisions for the 100-YR event. The design discharges <br />shown in the Structure Detail beginning on page 54 of the permit <br />application package does not match the revised information submitted in <br />December for Ditches D, I, J, and CMP2. <br />In summary, the presentation is confusing and appears to contain conflicting <br />information. Please thoroughly check the SEDCAD demonstrations and all <br />summary tables and make changes as needed to ensure a consistent and <br />accurate presentation of the ditch and sediment pond design and as- <br />constructed information presented in Appendix M(vii). Please re-submit the <br />entire Appendix M(vii) as one single package which includes the existing <br />information contained in the permit application package combined with the <br />revised pages from these two recent submittals for TR-23 (October 2007 and <br />December 2007 submittals). <br />3. Revised culvert design information was provided as requested. Item Resolved. <br />4. Requested footnote reference was provided as requested. Item Resolved. <br />3