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8CHOBL1. & MA080IM, INC. <br />Mr. Mike Saffron -2-May 3. 1989 <br />III. 100-Year Frequency Storm Design; <br />A. Precipitation - 6.0 Inches <br />B. Peak Inflow to Basin - 18.0 cfs <br />C. Peak Outflow to South - 10.2 cfs <br />D. Hiter Level In Basin 976.36 <br />E. Mixlmum Volume of Water Detained In Basin - 19>166 cubic feet <br />Mike, please note that the proposed detention basin will alter the i;x1sting <br />site drainage patterns. The effect of this change could cause damage to the <br />existing tree stand, resulting In a future stand of "dead and unhealthy" trees. <br />Presently, there Is field evidence that the existing stand of trees Is located <br />In a low, wet area and that during Intense storms, standing water may be <br />present. However, It would be very difficult, nearly Impossible, to predict the <br />future effects that the proposed basin will have on those trees. <br />If you have any questions or connents, please feel free to give me a call. <br />Very truly yours, <br />SCHOELL S MADSON, iNC. <br />John Karwacki, P.E. <br />JRK/cJ <br />end. <br />cc: Ron Lauer