Where does your drinking water come from? If you live on Cape Cod, your water supply comes from either a municipal or private supply well, fed by groundwater from Cape Cod's unconfined, sole source Aquifer, one of the most productive groundwater systems in New England.

(or click on the links provided below):
Hyannis Water Division508-778-6917
Barnstable Fire District508-362-6498
Centerville-Osterville-Marstons Mills Water Department508-428-6691
Cotuit Water Department508-428-2687
Bourne Water District508-563-2294
Buzzards Bay Water District508-759-4631
North Sagamore508-888-1085
Otis Air National Guard Base Water508-968-4102
Brewster Water Department508-896-5454
Chatham Water Department508-593-4766
Dennis Water District508-398-3351
Falmouth Water Department508-457-2543
Harwich Water Department508-432-0304
Mashpee Water District508-477-6767
Orleans Water Department508-240-3700
Provincetown Water Department508-487-7064
Sandwich Water District508-888-2775
Yarmouth Water Department508-771-7921



Municipal Suppliers
The Cape Cod Aquifer provides 100% of the Cape’s drinking water. There are 18 separate water districts, or departments across Cape Cod.  Altogether, there are 158 gravel pack water supply wells and one surface reservoir.  Approximately 85% of Cape Cod is serviced with public water.  The Outer Cape communities of Truro, Wellfleet, and Eastham are serviced almost entirely with private or small volume wells. Some towns are moving to municipal drinking water, such as Eastham.


Water Quantity
Since 2000, public community drinking water suppliers have pumped, on average, about 10.7 billion gallons of groundwater per year from Cape Cod’s Sole Source Aquifer. The graph (left) shows that pumping over the last decade has fluctuated due to seasonal climatic variations, such as rainy summers, but it remains fairly consistent.  A study by the U.S. Geological Survey indicates that groundwater pumping accounts for approximately 10% of the annual recharge from precipitation.