10/08/2020 BOARD OF HEALTH Minutes

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from groundwater. Neither the Health Agents nor the Board members could recall the conditions of the variance that was granted across the street. Mr. Harrington stated that the low profile chambers were not his preference, and asked if there was any way to get the system up a little higher to allow for the use of high capacity chambers. Mr.Ryther reiterated that they were trying not to boost the system up too high,and further stated that they would only use low profile chambers in a low traffic area, such as this. When asked if he had considered an I/A system, Mr.Ryther answered that they were trying not to go overboard since they are staying with the same number of bedrooms. Mr. Harrington advised that the property Is In a Zone II but discharges to Nantucket Sound. Using Sand Dollar Lane as an example, he advised that the Board has required pressure distribution in similar situations. He stated that the Board has given approval for a one-foot drop to groundwater at other locations in Popponesset. in response to a question from the Chairman,he answered that people do not swim in Dean's Pond but they do fish in it. Chair Baumgaertel pointed out to Mr. Ryther that the existing coarse sand is proposed to be stripped out and replaced with Title 5 sand, which that provides almost no buffer for phosphorous. He voiced his opinion that this is a self-imposed hardship,and It is time to start looking at things in terms of the phosphorous and nitrogen loading. Ms. Warden noted that there are still drinking wells in Popponesset,and asked if Mr. Ryther had checked the abutting properties, and Mr. Ryther answered in the affirmative. Mr. Harrington confirmed that there were definitely a few potable wells scattered throughout that area. Mr. Virgilio also expressed concern about not seeing the wells on the plan. Chair Baumgaertel advised Mr. Ryther that he had provided effective remediation for the other variances, but that the separation to groundwater is the Issue. After reviewing the conditions of the variance for the property across the street,Mr.Harrington stated that the circumstances were different — this property is a tear down re-build, where the property across the street was a straight repair. He further stated that,for the property across the street,the plan shows a pump system to a d-box, and perforated pipes were put in the CULTEC units for distribution. It also shows 9" of cover over the bed. Chair Baumgaertel did not see the proposed plan as meeting maximum feasible compliance, as there are options that could get the system away from groundwater without the need fora variance. He stated he was fine with the rest of the plan, but did not see a reason to grant the groundwater variance and suggested a revised plan be submitted. He also suggested a pump chamber could be used if the applicant was concerned about how the raised system looked. Ms.Warden stated that she would also like to see potable well locations and a floorplan be submitted with the revised plan. There being no further comments or discussion,Veronica Warden moved to continue the matter of Title 5 variances at 15 Kim Path to the October 22,2020 meeting. Motion seconded by Ernest Virgilio. Roll call vote: Ernest Virgilio (yes); Veronica Warden (yes); Brian Baumgaertel (yes). VOTE: Unanimous(3-0). 4. Review and approval of Title 5 Variances—16 Spoondrift Circle. Mr. Harrington commented that a tear down/rebuild is proposed for the three-bedroom dwelling. The lot is small and abuts Spoondrift Cove. The proposed plan has seven variances to accommodate the new dwelling and septic. The abutters to the sides had to be notified due to the property line variance for the SAS. The crawl space has a 20'setback but,if a slab were poured on the crawl space floor at the shown elevation, then the setback requirements would go to 10'. A liner should be placed along the foundation to protect against odors and effluent from the tank and SAS. The floor plans were not provided with this submittal. 3