Water Department


Our mission is to provide the Town with safe, potable drinking water through careful management and operation of the existing sources of water, and through ongoing maintenance and operation of the distribution system.

Main Street and Route 28 Water Main  (9/20/19)

We will continue to relocate water services for individual properties from the old main to the new main during the week of 9/20 to 9/27. We will be working in the general vicinity of the Maravista Ave Ext lights and will continue both east and west of there. Generally we have found that we need 2-3 hours for the excavation and back filling efforts.The actual cross over of the services has generally taken 15 minutes or less – minimizing any disruption of water service. The project’s inspector has been reaching out the day before work is scheduled. We will continue to interrupt the flow of traffic.A thanks to the officers that have been assisting us all week helping to manage the traffic.There will be traffic impacts with traffic reduced to one lane during regular work hours of 7AM to 5PM. Go to http://www.falmouthmass.us/986/Traffic-Updates
 to see the latest traffic plan. If you have any comments or concerns, or if you want to be on a notification list for the project, email to steve.rafferty@falmouthma.gov.  


Hydrant Flushing and Painting (7/12/19 )

Open the document to the right named  "Hydrants flushed 5-23-18" to see a map with all the hydrants located.  Highlighted hydrants are the ones that have been flushed since 2016.   We flush during the spring and the fall each year.  We have flushed over 50% of the 3000 hydrants to date.  We are currentl painting hydrants and we continue to focus on the main roads.  

Backflow Prevention - Public Notice (7/12/19)

We recently sent a notice to all users to educate them on how to avoid a backflow event.  Homeowners need to be sure that if they have underground irrigation that there is an approved backflow device between the water suppy and the irrigation system.  For more info see the informational documents to the right.

Water Quality - Lead and Copper (7/12/19)

Every Spring and Fall the Water Department, as part of its corrosion control program, samples the tap water at selected homes for lead and copper.   sixty homes need to be sampled to have a large enough sample set to be statistically valid.   We are looking for homeowners that are willing to participate in the sampling program.  Your home must have been constructed prior to 1983 to be eligible.   Interested? Email(falmouthleadsampling@falmouthma.gov).   We will provide you with additional information and would want to conduct a visit to confirm that your piping has lead based solder.

Lead is not from the source water, but is present in the piping in older homes and may leach into the water if the water is stagnant for a long period of time.  For more detailed information open and read the documents on the right titled "Sampling for lead at your house's tap" and the 2017 public education brochure - lead". 

Water Supply -  (7/12/19)

Your water is supplied from several sources. To see a map click on the document link for Water Resource Areas on the right side of this page.
  • Long Pond  is a protected surface water reservoir. It is our primary sources, and has been since 1898.  During this summer it supplied over 80% of our daily water needs..
  • The Crooked Pond Water Plant treats water from both the Crooked Pond Well and the Coonamessett Well and provided 16.7% of the water in 2018.
  • Mares Pond Well provided  3.0% of our water in 2018.
  • From the Upper Cape Regional Water Co-op, we obtain water from wells located on the northern side of the Cape. In 2018 the Town obtained 10.8% of the total supply from this source.

Water Treatment (5/17/18)

All sources are disinfected with sodium hypochlorite and treated with sodium hydroxide to provide pH adjustment. The average pH of the water in the system is approximately 8.0.   Water  delivered to your residence through our transmission and storage system, comprised of 398 miles of water main, 4 water storage tanks and approximately 22,000 service connections.