09/07/2000 CONSERVATION COMMISSION Minutes

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September 2000 Page 6. The issue in the field is hove to verify where the application is to occur, by it is allied and hove we can validate where that application took place. We have agreed in principal.as to what the requirements are but need t work With the contractor so that vire have confidence that we are not applying something in the wrong location or too heavy a dose in a certain area. A lot oftime has gone into this n more details are needed in the Scope ofI Work. He can provide more comments when AFCEE givestheir presentation. . Spence smith stated they are wrung on a larger strategy for Ashumet Pond. The phosphorus is already there. They are looping for ars improvement in health and algae blooms production. Another ley element is monitoring. They want to do this very soon. if conditions are not right and there is a decision they will stop work and entertain ghat will be done in subsequent years. They are talking about work in the ' contour. If things do not go well in the Pilot Fest, they will stop and not do the full treatment. He showed a few of the monitoring stations during the program. They are planning ars injection ofalum sodium alumi ate mix. There trill be a 5 mere Pilot Test before they go to the full 28 acres. There will be intensive oversight and monitoring. Dr. Dare Mitchell i the primary decision maker. This is the ideal time to apply the alum but if the window closes, they are prepared to stop. They are looking at long- term effectiveness. They are ensuring there are proper safeguards. They will come in and discuss means and methods. 3 ' is the injection depth. A methyl mercury test will be done. They will be prepared to start work on the 25th. Steve Hurley will be at the boat ramp to inspect the equipment. Brian Bowes is ars independent party who is also doing monitoring. 'There will be follow up to see hoar well the treatment vent, one month after and into the next year. The other key issue discussed is protection of habitat. Natural Heritage has looped at the problem and has responded in writing. studies have shown that alum has little or n effect on the benthic community. Mr. Sherman stated he wanted to make it clear that Steve Hurley rust agree with this assessment. Mr. smith advised Dave Mitchell has written a letter that will be provided to- Steve Hurley for review with the conclusions about the condition of habitat.. Some of the problems with approaches in the hast were due to the poor design and lack of monitoring. They have the ley elements covered.