In advance of Tuesday’s Ossipee Planning Board hearing, Dr. Robert Newton says near-by wells for homes and businesses are threatened because of the development’s proximity to a recharge area of the Ossipee Aquifer. He says gas stations are major sources of groundwater contamination even when when they employ new “triple containment” tanks. Smith is familiar with the Ossipee Lake area from his work mapping the glacial geology of the Ossipee Ring Dike.