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<br />2"a Adequacy Review Comments Page 5 of 5 <br />29. Objector Comments -Impacts to Surface Water: <br />A cursory evaluation was performed utilizing the unadopted 2003 USACE's hydraulic <br />model to assess the impact of the existing flood control dike. The 2003 USACE's model <br />utilized 1995 topography therefore, this evaluation incorporated changes to the berm <br />between 1995 and 2004. The evaluation of the west end and portions of the dike <br />constructed prior to 1995 will be made during the Flood Control/Mitigation Plan <br />hydraulic analyses at which point comparisons will be made to the effective study <br />adopted by the Federal Emergency Management Agency (LTSACE 1974). The impacts <br />shown by the cursory evaluation on water surface elevations (for the 10-, 50-, 100-, and <br />500-year events modeled were less than 0.3 feet) of an approximately 100-foot wide <br />berm in a approximately 2,000-foot wide floodplain were within the accuracy limits (plus <br />or minus 1-foot) of the 2003 USACE's study. <br />COVC03 ACE 2nd Adequacy Rvw Comments mml.doc 7/6/2004 <br />