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JAN 28 1981 <br />ego 45 P 7706 <br />SOUTH COUNTY WATER TAXING DISTRICT — STATUS OF HYDROGEOLOGIC TESTING <br />PROGRAM AND CHANGE ORDER FOR CONSTRUCTION OF TEST—PRODUCTION WELL <br />AND ASSOCIATED WORK — GERAGHTY & MILLER a <br />TOM TESSIER OF GERAGHTY & MILLER MADE A PRESENTATION AND <br />REVIEWED. THE FOLLOWING LETTERS: <br />Forum III <br />it Suite 404 <br />Geraghty & Miller, nc. 1West Palm Beach, 33401d <br />Iakes <br />CONSULTING GROUND -WATER GEOLOGISTS AND HYDROLOGISTS Telephone: 305/683-3033 <br />.C••� c <br />20 January 1981 <br />P225SC2 <br />2 <br />Indian River County Commissioners <br />2145 14th Avenue <br />Vero Beach <br />Florida 32960 <br />Subject: Status of Hydrogeologic Testing Program, South <br />County Taxing District, Indian River County, FL <br />Dear Commissioners: <br />We wish to inform you of the present status of Geraghty & <br />Miller's contract of January 7, 1980, for hydrogeologic ser- <br />vices related to construction and testing of wells in the <br />South'County Taxing District. <br />Three wells were constructed at the site of the County's <br />planned water plant in the South County Taxing District. A <br />two -inch -diameter Deep -Zone Monitoring Well was completed to <br />950 feet below land surface near the northeastern corner of <br />the site. With a screen from 900 to 950 feet, this well was <br />constructed to allow the County to monitor water quality below <br />the zone from which future system withdrawals are planned. <br />Then, a 12 -inch -diameter Test -Production Well was constructed <br />within 75 feet of the Deep -Zone Monitoring Well. This well <br />was cased to 383 feet below land surface and drilled to 700 <br />feet. The 12 -inch -diameter Observation -Production Well was <br />installed at a location about 1000 feet southwest of the Test - <br />Production Well. It was cased to 383 feet below land surface <br />and drilled to 740 feet below land surface. <br />After completing all wells, pumping tests were conducted on <br />both production wells. While water levels were measured in <br />all three wells, the Test -Production Well was pumped at 1666 <br />gpm (gallons per minute) for 69 hours. After recovery, the <br />Observation -Production Well was pumped at 1666 gpm for two <br />hours. Later, it was pumped at rates of 1034 and 1500 gpm for <br />SYOSSET, NY ANNAPOLIS, MD WEST PALM BEACH, FL TAMPA, FL HARTFORD, CT <br />