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J r� DEPARTMENT OF THE AIR FORCE <br /> HEADQUARTERS AIR FORCE CENTER FOR ENVIRONMENTAL EXCELLENCE <br /> INSTALLATION RESTORATION PROGRAM <br /> OTIS AIR NATIONAL GUARD BASE,MA 02542-5028 <br /> dI <br /> NEIGHBORHOOD NOTICE <br /> August 19, 1997 <br /> The Air Force Center for Environmental Excellence (AFCEE) has received all of the test <br /> results from private wells for 28 residences on Saddleback Road in Mashpee. Your <br /> residence was one of those tested. The test results DID NOT show the presence of <br /> ethylene dibromide (EDB) in your water supply. You will receive a written report of the <br /> test within the next two to three weeks. <br /> We also tested your well water for volatile organic compounds such as solvents and fuel. <br /> We DID NOT find such chemicals that might be associated with groundwater <br /> contamination from the base. We did find the chemical chloroform in all but one well <br /> (#34 Saddleback Road), at very low levels ranging from 2 to 4 parts per billion. The safe <br /> drinking water standard for chloroform is 100 parts per billion. Chloroform is commonly <br /> found in private well water supplies on Cape Cod and poses no health risk at the low <br /> s; levels detected. <br /> Based on this information we feel that your water supply is safe and can be used for all <br /> purposes. However, we will continue to provide you with bottled water and conduct at <br /> least one more round of private well testing on Saddleback Road. The next sample <br /> Y' collection will occur during the week of September 1st. Decisions on testing beyond that <br /> point and the provision of bottled water will be made based upon the installation of two <br /> groundwater monitoring wells north of Saddleback Road and the results from the next <br /> round of private well testing. Work on one of those monitoring wells begins today. <br /> Both monitoring wells should be completed in the next two to three weeks. <br /> patience in this matter as we work quickly to better <br /> We appreciate your cooperation and <br /> understand the situation in the area. If you have questions about scheduling private well <br /> testing or bottled water please call Kathy Collins at Jacobs Engineering Group on base,, <br /> 508-564-6192, ext. 235. If you have questions about the status of the investigation, test <br /> results, etc., please call Doug Karson at AFCEE, 508-968-4678, ext. 2. <br /> cAtnisc\fs-tnn.aoo <br />