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r , <br /> then based on what they propose, the analysis and the comments they <br /> receive. Then will then enter into a final recommended decision, which <br /> establishes ghat it Is that the Air Force will then be responsible to <br /> implement. If there is any construction required then they will design it, <br /> build it, install it and operate it until it is no longer needed. It was corning <br /> nett year in 2004. <br /> Mr, Santos stated that last year at this meeting in Ashurnet Pond in the <br /> north where the plume cones through and into the pond. There were <br /> extraction wells in place or put into place. <br /> Mr. Carson responded that the nearest extraction wells on the northeast <br /> side of the plume and along sandwich Road to address the CS10 Plume. <br /> Down in this area there were groundwater extraction wells located here <br /> to cut off the plume. There was no extraction system or any system in this <br /> area here. This is an area that had been discussed for at least the last <br /> eight to ten months, about the potential for having construction because <br /> there were reasonable alternatives. He thought there were over twenty of <br /> therm Some involved a little bit of different treatment systems in here. <br /> Right now there has been no final decisions that they have talked about. <br /> The existing system is right along sandwich Road. <br /> Mr. Santos said that Ms. Warden was going to mention the phosphorus <br /> flush, Last year... <br /> Mr. Carson responded that that was two years ago this month. They dict <br /> the chemical treatrnentmmean aluminum based compound that was added to <br /> the deepest portion of the pond, which was 60 to 701 deep. They found <br /> through looking at pond in the year prior to the treatment was that a lot of <br /> phosphorus entering the pond from this side from the old surge plume <br /> coning from the base and was welling here at certain tunes of the year <br /> when the pond got colder at the bottom it started stratifying. A lot of it <br /> would accumulate clown here in the bottom in the summer time, Thea <br /> when oseptember or October rolled around the pond would basically <br /> turnover. All the water would mix and all this phosphorus would suddenly <br /> become available for the algae, which has resulted in the arae blooms in <br /> the fall and the spring. What they did was add the chemical in the deepest <br /> hole two years ago. They have been collecting data since. The data <br /> suggests that the amount of phosphorus has been limited by their <br /> application significantly. If that limiting factor will tura into less frequent <br /> algae blooms. When there are algae blooms in the spring and the fall they <br /> will be less severe. He didn't believe that the were any algae blooms this <br /> past summers One of the factors he heard kicked around was the high <br /> pond level. There was a lot of water. Last year when they had a really bad <br /> algae bloom out on Ashurnet pond there were very low water levels, They <br /> 17 <br />