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EXHIBIT " A " MEMO November 4 , 2005 To : Michael O ' Brien ( Revised November 22 , 2005 ) From : Marty Burdette Re : Heron Cay Michael : Attached are sample sheets for the proposed Specific Purpose Survey to determine elevations on specific lots/addresses in Heron Cay . SCOPE : Burdette & Associates , Inc will obtain elevations , in the NGVD ' 29 datum , based on existing benchmarks near the entrance to Heron Cay . The homes to be surveyed are based upon a letter to Commissioner Thomas S . Lowther , from Mr. Alfred N . Andersen , dated August 31 , 2005 . The homes are lots 1 , 3 , 50 91 127 13 , 142 21 , 23 , 24 , 26 , 29 , 30 , 34 , 37 , 55 , 56 , 66 , 74 , 98 , 1279 165 , 169 , 2069 2082 226 , 229 , 178 . Unit 193 is not listed with the above , but is include in an attachment to the letter, entitled , " Heron Cay Drainage Deficiencies" . Based on our earlier discussions , we propose the following as a Schedule of Events . • Notice to Proceed • Kick Off ( Obtain Benchmark Information ) • Establish Vertical Control Network — During this phase we want to coordinate with the homeowners the location for the "apron " opening . We anticipate this being within 1 week of notice to proceed . • Locate existing homes and ground shots , approximately , 17 per unit ( average) • Obtain catch basin record information for Structures 64 , 66 , 552 472 46 , 45 , 441 49 , 489 41 , 40 , 43 • Obtain invert elevations for Outlets P , O , M , L (As appears on the drainage plans on file with the County) • The Catch Basin and Outlet Data will appear in the Survey as a Tabulation Sheet . • Obtain ground elevation beneath the modular homes . • Complete Survey FA\Engineering\Capital Projects\0390-Annual Survey Contracts\Burdette\Heron Cay\feeMEMOrevised EX A 11 -22.doc Page 1 of 2 memo EXHIBIT A