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HomeMy WebLinkAbout1994 05 03 - Permit CorrespondenceIMOSBY AND ASSOCIATES, INC. CONSULTING ENGINEERS May 3, 1994 Ms. Janice V. Unger St. John's River Water Management District 305 East Drive Melbourne, FL 32904 Subject: Sebastian Sports Complex Permit #42-061-0332NG and 42-061-0"G Sebastian, Florida Engineer's Project No. 94-246 Dear Ms. Unger: 2455 14TH AVENUE P.O. BOX 6368 VERO BEACH, FLORIDA 32961 407-569-0035 L MAY 419-9d � �a-,eq - e.�si,c-7G RECORDS Melbourne In response to your letter dated April 5, 1994, and as a follow-up to Mr. Dan Eckis's letter of April 12, 1994, we have the following response: Northeast Retention Area - The city will remove the four (4) inch PVC pipe located in the west berm connecting the retention area to the Rosebush Lane swale. The retention areas of the Barber Street Sports Complex were designed and permitted in accordance with the rules and regulations of the St. John's River Water Management District. It is apparent that a recovery problem does exist and the existing subsurface conditions are not performing as predicted by the soils testing firm for this project. The ideal corrective action to solve the problem would be to deepen the retention areas and turn them into lakes, but this is not an acceptable alternative to the City due to the liability of the lakes. We are open to suggestion from the Water Management District as to acceptable corrective action. Northwest Retention Area: The permit modification, 42-061-065NG, permitted this grassed overflow swale. 2. Refer to item 2 above. The permit modification 42-061-065NG permitted the removal of the Type "C" inlet 15 inch C.A.P. and the trench drain. Ms. Janice V. Unger May 3, 1994 Page 2 With regard to the pipe between the east and west retention areas, this pipe is strictly an equalization pipe. The site drainage is basically equally split between the two retention ponds. If the District insists that this equalization pipe is essential to the functioning of the stormwater system, then the City will install the pipe. - Once you have had a discuss Ve tjor y by, .E RL cc: Mr. Dan Eckis to review the above response, please contact this office so we can