Sandwich Water District
Chlorination Notification, August 2023

Dear customers of the District, this is a notification of the expansion of chlorination into the HZ pressure zone. This zone includes all areas south of the Mid-Cape Hwy on Quaker Meetinghouse Rd, the Service Rd to Sandwich Hollows, the surrounding developments of Canterbury, Lakewood Hills, Farmerville Rd. to Bob’s Field, Cotuit Rd, Rte. 130 from PA Landers to just after Shawme Rd and up to Highview Condominiums.

The District consists of 3 pressure zones LZ1, LZ2 and HZ. Currently LZ1 and LZ2 are minimally chlorinated. HZ will be the final zone and chlorine residuals will also be minimal. This is done to ensure the District meets the standards set forth in the Safe Drinking Water Act (SWDA) and Massachusetts drinking water program regulations administered by MA DEP.

For any questions or concerns please contact the District office at 508-888-2775



Fiscal Year 2024 (document)
Calendar • Sandwich, MA • CivicEngage ( Download agenda


Sandwich Water District
PFAS Update
Committed to Safe Drinking Water


EPA Information on COVID-19
Pertaining to Ground and Drinking Water


Important Information About Your Drinking Water
Reporting Requirements Not Met by Sandwich Water District


Important Notice for Sandwich Residents
referencing the
MassDEP Regulations concerning PFAS contamination
What a part per trillion or ng/L looks like

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Letter to Sandwich Residents

referencing the
Independent lead and copper tests obtained
through the Assistance Program for Lead in School
Drinking Water through the Massachusetts
Department of Environmental Protection (MaDEP)

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New Service Installation Fee Increase
The SANDWICH WATER DISTRICT Board of Water Commissioner’s would like to notify
District Residents of the updated fee for installing a new water service. The current fee for a new
water service is $1,500.00 and has not increased since 1995. The updated fee for installing a
new water service will increase to $3,000.00 effective July 1, 2021.


Sandwich Board of Water Commissioners

Richard W. Anderson, Chairman - 2025
Peter S. Thomas, Commissioner - 2023
Peter D. Howell, Commissioner - 2024

Dan Mahoney, Sandwich Water Superintendent

The Sandwich Water District serves a winter population of 17,000 and throughout theSandiwich Water District | Town Of Sandwich, Cape Cod, Massachusetts | Water Supply Info | cute young girl drinking water from glass cup summer months, serves an estimated 25,000 consumers from ten groundwater Wells. The Wells are located:

  • at the Boiling Springs Well Field in East Sandwich (3 Wells - #2, #3, #9)
  • at the Pinkham Road Well Field (3 Wells - #4, #6, #10)
  • near Farmersville Road (2 Wells - #11, #8)
  • at the Nye Pond Well Field (1 Well - #7)
  • Weeks Pond (1 Well - #5), has been reconditioned and is available for service.

For additional water supply, interconnections exist between Sandwich and the Bourne Water District, Centerville, Osterville, and Marstons Mills Water Districts and the Upper Cape Regional Drinking Water Supply.


Water Emergencies:

During regular working hours Monday – Friday 8:00 am – 4:30 our office can be reached at 508-888-2775. After hours, weekends and holidays dial 508-888-2775 and leave a message with our answering service. They will contact the on-call person we have on duty at that time for assistance.

For more information on the Sandwich Water System, contact Daniel H. Mahoney, Superintendent, 508-888-2775, or send us an email.

Water droplet with ripples in water


Hazardous Waste

The improper disposal of hazardous materials can cause serious contamination to water supplies and the environment. As residents of Cape Cod we all can contribute to protecting our natural resources through proper waste disposal. Do not pour hazardous wastes or paints down any septic systems, private or public drains, on the ground, or into waterways. Safe disposal of materials through the Hazardous Waste Collection Program will help to keep our drinking water and our community pollution-free.

For more information on theplease contact Cape Cod Cooperative Extension at 508-375-6699 or go to



All times are
9:00 am to 1:00 pm

Sandwich High School

Falmouth High School

Mashpee High School

Bourne Landfill