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Clerk -Administrator and City Council <br />Page 2 <br />December 31, 1986 <br />At the last Agenda Meeting, the following question was asked. <br />How deep will the water be in the pond during a one year and 100 <br />year storm? During a one year, 24 hour, storm event, the depth <br />of water in the pond will be 3.3 feet provided the check valve is <br />operating properly and the pipe is not clogged. During a 100 <br />year, 24 hour storm event, the depth of water in the pond will be <br />4.5 feet. <br />There are several ways to reduce the depth of water in the pond. <br />One way is to allow steeper side slopes on the pond. <br />The above calculations satisfy City Code requirements. The City <br />Code is silent in the areas of maximum water depth in the pond, <br />maximum side slope and location of pond (on separate lot or <br />easement). A pond is required by Rice Creek Watershed District <br />(RCWD) because the subdivision sire exceeds 5.0 acres. Rice <br />Creek Watershed district has approved the Developer's proposal. <br />ACTION REQUESTED: Staff looks forward to discussing this issue <br />with you on 10nday night. <br />SWT/bac <br />