12/16/2019 BOARD OF SELECTMEN Agenda Packet

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*DRAFT* BOARD OF SELECTMEN MINUTES 12-2-2019* 8 Board of Selectmen. Minutes December 2, 2019 Discussion of S antuit Pond and StrateRy to Address Condition: Health AR ent Glen Harrin on Conservation Agent Andrew McManus Deartment of Natural Resources Director Richard York:. (continued) p Management options for Santuit Pond include dredging and artificial circulation/aeration to g maintain oxidation within the bottom levels of the pond. For several years,the Solar Bee circulators reduced the problem and restored fish populations. The Solar Bees are running, but they.are not effective with the bloom. with heavy rains; 6-7 in 2017 the cyanobacterla concentration increased dramatically. (Did this occur after a drought?) with increased rain input.,the algae blooms are recycling. Mr. York indicated it is important to control the inputs, and it is wise to harvest the algae after strong rain events. It was noted the water.table is currently 1.7' above normal.. The Town was noted to have installed an asphalt berm and infiltration basin to capture all stormwater'run-off from Timberlane Drive and Lantern Lane. Surface runoff encompasses 5%, of the load. In consideringthe timeframe*for dredging, Chuck Green offered comment noting the Army g g� Corps of Engineers has funded a$500,000-dredging study Which may take upwards to two ears with peer review required before a final decision is made. S ewering is also a prerequisite for the dredging project. If the dredging is recommended it is an$8 m. project requiring. contributions from the Town of Mashpee and wampanoa.g Tribe aswell as federal funding sources. indicated theTown is reviewin the Al ix• bloom harvesting products. Thereis a Mr. York r g g company harvesting in the United States and in China. The firms are turning the foam into p Y shoes and other products. This is a possible and viable solution although costs are not fully known. There are several y species of c anobacteria in the pond.and there is concern the dominant p species,may in fact be a different species, and the composition of these species can be altered daily as well as monthly. It 'is important to convey the toxicity risk to the public. Mr. York indicated-the floating film can be far more toxic than the pond water. In fact,.the clear period after a bloom may be the most toxic period. As the Town awaits results of the study, ways to move forward for remediation Was discussed. y It was recommended that a strict enforcement be administered to prohibit the use'of phosphorus; soaps and fertilizers. It was agreed that potential articles be considered for the May Town �` Meeting to provide resources which includes possible CPA funding to control/reduce the nutrient contributions emanating from the watershed.