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Primary Contaminants ■ Another posterboard session and i <br /> meeting, describing the advantages <br /> 510 plume are advantages of the alternatives,will <br /> The primary contaminants of the - p <br /> erchloroeth leve (PCE), on July 1trichloroethylene (TCE), p Y <br /> and 1,2 dichloroethylene (1,2 <br /> -DCE). PCE and TCE ■ Fact sheets,news releases,and ot] <br /> are common solvents used for equipment main- information will be distributed. <br /> tenance and degreasing. ■ Citizen team meetings,which are <br /> the public and advertised in local <br /> Plume Cleanup newspapers,will continue. <br /> • • • sof * Informal neighborhood availab <br /> Cleanup Activities To Bate: Two pilot test <br /> recirculating g <br /> culatin wells began in the eastern lobe of the sions will be held and can be req <br /> . <br /> 10 plume near the bound of the base in contacting the Community In <br /> C S- p �`Y <br /> and are scheduled to run throw h office(see below.) <br /> December 1996 g <br /> June 1397. The purpose of these tests is to deter- The time and location of posterboard se: <br /> mine whether recirculating well technology can public meetings will be announced in nein <br /> effectively capture the plume and reduce contami- notices, news releases, and advertiseme: <br /> nant concentrations in theoundwater at CS-10. <br /> gr newspaper. <br /> i In addition, AFCEE currently is installing wells <br /> Schedule <br /> along the leading edges of both lobes of the CS-10 <br /> plume to collect data which will be used to evaluate 5127197 6110197 711197 7115197 815197 <br /> extraction, reinjection, and recirculating ETR) <br /> technology, and recirculating well technology. "Posterboard Public , Decision <br /> These technologies are described in more detail in session Meeting + Announced <br /> the "Groundwater Treatment Technology" fact r <br /> g <br /> sheet. Public Comment Design and Const <br /> on Alternatives <br /> Next Steps: In the next few months, AFCEE, with <br /> oversight by the USEPA and the Massachusetts <br /> DEP, will determine the most effective method for <br /> For l re Ii rma:tlon <br /> cleaning up the CS-10 plume. The process to select <br /> that method will use "decision criteria" which will �. <br /> help highlight the tradeoffs associated with different <br /> A � i nal. inform ion about cleanup a <br /> :a anal:a-::on our. .:wdbsite: http:Ilwwv� <br /> alternatives. The decision criteria focus on protec- <br /> d the environment -or :more:......inforrnat Vin, please ccs <br /> tion of human health an .. <br /> regulatory requirements, effectiveness of treatment <br /> vnlmup y In of-ernent off ce for the'] <br /> . esta ation:=Prpgr m Y callirig (50S} 9 <br /> technologies, alternative costs, and community <br /> acceptance. <br /> l?y sen -ihg::,:.% :=.a-,e t onic rnail c <br /> ck rsn afll a . af.tri i 1 <br /> Public involvement during the decision-making <br /> period is critical to selecting an alternative that not <br /> only cleans up the groundwater and meets regula- <br /> tory requirements, but also is acceptable to the <br /> affected communities. There will be numerous <br /> opportunities to participate in the decision-making <br /> process. The project managers from AFCEE, EPA <br /> and DEP invite you to participate in the following: <br /> * A public comment period on the plume <br /> response alternatives will run from May 27 <br /> to July 15. <br /> } <br /> A posterboard session describing the alter- <br /> natives will be held on June 10. <br /> } <br /> 2 <br />