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Scott Harlicker <br />April 15, 2004 <br />Page 2 <br /> <br />· The storm sewer system along the access road is all shown to be twelve inch diameter <br /> pipe. However the Hydrocad model shows this system as having multiple pipe sizes. This <br /> discrepancy needs to be clarified. <br />· The southeast pond section calls for an outlet structure number two in the details, however, <br /> there is no outlet structure number two in the details and outlet structure number one has <br /> errors in its elevations. This issue needs to be clarified. <br />· The design flow from the existing pipe receiving the pond outflow is 15.48 cubic feet per <br /> second (cfs). The full capacity of this pipe is 16.91cfs. The pond contributes 1.2cfs to this <br /> system. This willr need to be evaluated again after model errors discussed above are <br /> corrected to show the actual flows involved. <br /> <br />At this point we would recommend that from an engineering standpoint this project is not ready for <br />approval. Revised storm drainage calculations need to be submitted, reviewed and approved, <br />along with revised site plans which show all the various issues that have been discussed in <br />meetings regarding this project. <br /> <br />If you have any questions regarding this project, please call. <br /> <br />Sincerely, <br /> <br />Howard R. Green Company <br />Terry J.~;a'urer, P.E. <br /> <br />TJM:ac <br /> <br />cc: Dale Campbell; John Oliver and Associates <br /> <br />Ltr -041504-Halicker <br /> <br />Howard R, Green Com anv <br /> <br /> <br />