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4 Dr. Heiger-Bernays inquired about § 155-75. Water quality. Ms. McCartin stated it is about what should be tested for the geothermal wells and irrigation wells. It will be revised to “Prior to approval of the well as a potable water supply” as per Dr. Heiger-Bernays’ comments. Dr. Heiger-Bernays suggested to add PFAS to water quality testing standards (§ 155-75.A) to follow Massachusetts maximum contaminants levels. She revised part B “National Interim Primary and Secondary Drinking Water Standards:” to “Massachusetts maximum contaminant levels (primary and secondary drinking water standards)”. She also stated manganese should be moved from a secondary standard to a primary standard. Dr. Heiger-Bernays clarified the testing of E. Coli bacteria and Nitrate/Nitrite with regard to the irrigation well. The owner has responsibility to test E. Coli bacteria and Nitrate/Nitrite. Dr. Heiger- Bernays suggested it should be put for recommendation for irrigation well. She also advised that it should be recommended more frequent sampling if the irrigation well is within 400 feet of a Hazardous Waste site or near a septic system. Ms. Belanger confirmed that a potable (drinking) water well is tested once the well is dug. Ms. McCartin also stated that the well will be tested when transfer of the deed. Mr. Sandeen stated Fiske school and Harrington school had geothermal wells 6 or 7 years ago. Dr. Heiger-Bernays stated they never approved geothermal wells from the schools. They only approved 2 variances of geothermal wells for new houses. Ms. McCartin stated there are still homeowners of 12 houses in Lexington drink water from wells. She also pointed out the wording of “The well is not the primary source of potable water and municipal water is available to provide a source of potable water” has been listed in § 155-78 B.7. Dr. Tung inquired about in the context of whether one property has to connect to the Town water supply system (§ 155-72 B). Ms. McCartin stated any new dwelling would have to tie into Town water within 500 feet. And there was no enforcement piece to this. Enforcement, hearing, and penalty section were added to § 155-80, which is similar with other communities. Dr. Heiger-Bernays inquired what is the obligation to release those water test results to the renter if the house rented with a private well. Ms. Belanger stated that is under the housing code. Ms. McCartin stated “The owner of every well used for drinking water including properties that are rented or leased shall have its water tested at a minimum once a year”, which was included in § 155-75 D. Dr. Heiger-Bernays stated it is expensive to do annually. Fee Schedule Update: Title V Inspection Report Filing Proposed: $30 fee Ms. Belanger explained the fee schedule updates on permit of Title V Inspection Report Filing. The proposed permit fee is $30. Dr. Perlmutter made a motion to accept the fee schedule (amended in April 19, 2022). Dr. Tung seconded. Roll Call Vote: Dr. Perlmutter – Yes, Dr. Tung – Yes, Dr. Heiger-Bernays – Yes. Motion carried 3 to 0. All in favor. Unanimously moved.