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An Information Survival Kit for the prospective geothermal heat pump owner. (Geo-Heat Center, Oregon Institute of Technology, 2001). at <http://geoheat.oit.edu/ghp/survival.pdf>

Boston Subsurface Project at Tufts University. at <http://bostonsoil.atech.tufts.edu/>

The Massachusetts DEP Hydrogeologic Information Matrix. at <http://www.mass.gov/eea/docs/dep/water/compliance/hydromat.pdf>

SearchWell - MassDEP Well Driller Program. at <https://eeaonline.eea.state.ma.us/dep/searchwell/>