Lincoln’s water supply is a ground water aquifer that currently supplies all of the Municipal water needs of the town of Lincoln and Howland. The location of the Esker Aquifer is in South Lincoln and is part of a major glacial stream deposit that extends in a North/South direction through the most southern part of the town of Lincoln. The District operates and maintains 4 gravel packed wells in the Aquifer. This water source has been in use since the fall of 1961, and feeds 27 miles of water distribution mains, supplying 129 public fire hydrants, 28 private fire services, and 1500 water service connections. The District average daily pumping rate is 850,000 gallons per day (G.P.D.) In the event of a power failure, water pressure and flow would be maintained by two 500,000 gallon standpipes located at the top of Pinkham Street and one 500,000 gallon underground concrete tank located off the Transalpine Road on Fish Hill.

The water source from the gravel packed well is pumped directly into the distribution system with no filtration or chemicals added, since the quality of the water is such that disinfection of the source water at the wells is not needed.