Concord’s water system consists of 6 groundwater supply wells located in Concord and one surface water supply located on the Acton and Littleton town line. In addition, it has associated pumping stations, 2 storage reservoirs with a 7.5 million gallon total capacity, and approximately 130 miles of water main.
A number of factors impact which sources are being run at any given time, such as time of year, system demand, pump station maintenance/upgrades, and source quality. Water from each individual source is treated to the same overall standards, so regardless of which well(s) may be running at any given time, the water is clean and safe for consumption. View a map on the