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S <br /> APPOINTMENT: MMR IRP—MMR LJ date <br /> Ms. Linda Wadsworth was present for this agenda item. She began by stating that <br /> they were here tonight to give them an update as to what was going on with the clean <br /> up programs at the MNM. She introduced Alan Cowles. They coordinated the <br /> different environmental programs out on the base. So if they ever needed anything <br /> they should give thein a call. They were producing an annual report on current <br /> training in environmental protection. It should be out at the end ofthis month. They <br /> will send the board a notice on it. She then introduced a Mr. Carlson and then Chris <br /> Curley. <br /> Mr. Carlson presented the board with last gear's groundwater plume booklet. They <br /> would be updating that again in May of 2005. They were also going to be referring to <br /> some drilling locations on here because they had expressed an interest in getting an <br /> update. They also had updated tech slides that they presented two-public clean up. <br /> team meetings ago. They were all updated with the most recent inf rn ati n. He <br /> wanted to start with the FS 4, which was on the little neap. It was shown over here <br /> emanating from the base and conies down to the Quashnet River. Several years ago <br /> there was a fire at the treatment plant and 1t was destroyed. They rebuilt that plant and <br /> re-designed the system out there. So now they had four deep extraction wells. They <br /> also used-to have a bunch of shallow well points. They were 2" diameter wells about <br /> 15' below ground service. They had all been turned off. They were now operating <br /> four deep extraction wells out there. They were still sampling the area. They were still <br /> seeing low-level detections of EDB in a couple of the hog areas. The most recent <br /> highest level was this past December. It was 0.051 parts per billion for EDB. It was <br /> above the safe drinking level limit, which was . 2. But, that was not a drinking water <br /> supply out in this area. S , there was no working type of exposure or ecological <br /> concern. If you look at those two types of scenarios itwasn't even close to the <br /> thresholds are for those. The ecological threshold was 31 and the human health was <br /> over 6 for that type ofexposure. So basically they were here to say that there <br /> continued to be no risk to the public health or the environment. They have monitored <br /> several locations monthly out at this particular area and it would appear based on the <br /> data that they collected so far that the system was operating. What they continued t <br /> see was more capture of this plume. Eventually they should start to see the <br /> concentrations become less and less in the surface water. They were actually already <br /> seeing that. Hopefully, it would be nom-detected at some future point. Up until that <br /> point, the cranberry growing in that area had not occurred and compensation had been <br /> provided in the past by the Air Force. That would continue to happen under an <br /> agreement that they had with the town. He then began to spew about Johns Pond. It <br /> was obviously a very large recreational pond. There was a lot.ofinterest out there <br /> with a lot of homes around it. The area of John's Pond was a very complex area <br /> hydro-geologically. There was a lot of water coning into Johns Pond on this side and <br /> lot of water exiting on the east side. Millions ofgallons per clay in recharge, with <br /> groundwater contaminant plumes in the area. One was from an old.storm drain galled <br /> SD5. There were also a number' f lobes associated with the chemical spill 10 plume. <br /> If they looked on their first map they could see on the cover the CS 10 plume <br /> 1 <br />