Groundwater Supply Well Posted on January 1, 2016December 21, 2023 by Weston & Sampson (A) Dartmouth Water Treatment Plant Upgrades Weston & Sampson was the prime contractor for a new groundwater supply well, pump station, instrumentation, and control upgrades at the Dartmouth water treatment plant. BACK Looking for assistance with your Construction project? How can we help? Posted in Construction, Wells and tagged Dartmouth, MA.