12/4/1997 AD HOC COMMITTEE ON PLUMES Minutes

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r. a AD-HOC COMMITTEE ON PLUMES IMPACTING MA HPE MINUTES DECEMBER, 4, 1997 Greg Taylor, Chairman, called the ateet ing to order at 8 : 30 a.m j.n conference. ROOM #2 at Mashdee Town Hall. Present: Bob Whritenour, Elliot Rosenberg, David Rich, Nancy ca f f n, Bob cr aia. The Minutes of October 17 , 1997 and November 6 , 1997 were ad roved as amended. Nancy C. displayed ars updated DEP iiiap showini4 the movertlent of the dlurkies . Gr eLj T. distributed cod ie s of the MMR Proposed Plan to clean uthe six areas of contaiaination., Grey T. stated that basically they d1an to contain and remediate the plumes. The rewediation x.11 occur at the ground level source areas where they started. A discussion occurred about source vs . plume .areas . Greg' TO stated that the law suddorts source area , and der ittinq structure is set up by statute. Bob W. asked if some are on Torn conservation land. Grecs. T. did not ]snow. Elliot R. stated that it is less likely. The iia .iedosit .oni' s to identify the sourceIP Greg T, was disappointed in the report since there was no discussion about chemical compounds and their concentrations and the results frow testing. Bob C, noted that the SD-5 redort Mashpee paid for was excellent. He feels this should code from the wilitart' Elliot R. stated they are goingi to do treatment on site. What about removing? Greg T. stated they are going to "inca,?sulate" . The material will get recycled in ashpha1t. They plan to dilute and Latch. They will remove the material and use it for paving on base The public coILI�ttent period has been extended to January 16 , 199816 Gre1 T. ' s comments to there were that there is not enouLjh "I-tqea.t" to this Plan to make a decision. The risk assignment was done and it overly conservative. Nancy C. recommended lobkin4 at storm drainage on #4 and