Wastewater Treatment Plant Upgrades Posted on January 1, 2016August 10, 2022 by Weston & Sampson (A) Kennebunkport Wastewater Treatment Plant Upgrades Weston & Sampson was the prime contractor for wastewater treatment plant upgrades and modifications to the sludge dewatering process at the Kennebunkport wastewater treatment plant. BACK Looking for assistance with your Construction project? How can we help? Posted in Construction, Treatment Facilities and tagged Kennebunkport, ME.