Agendas & Meetings

View agendas for upcoming meetings and minutes for past meetings.


Find the answers to some of our most frequently asked questions.

Rates / Fees

View the current rates and fees for COMM Water services.


PFAS in drinking water is an important emerging issue nationwide.

Welcome To COMM Water Department

The Centerville-Osterville Water District was established in 1938. It became the Centerville-Osterville-Marstons Mills Water District in 1986.

The Water District provides water service to the residents of the COMM Fire District.  The Water District has been recognized for having some of the best water in the state.  The Water Department has three storage tanks with over 5.5 million gallons stored. It has 247.5 miles of underground pipe and over 1,940 fire hydrants.  There are 19 pumping stations.

News & Updates

Online Bill Payments

Drop box outside of our building or mail checks for payments:

COMM Water Department

1138 Main Street
PO Box 369
Osterville, MA 02655

Reminder:  Town’s Emergency Notification System

What is CodeRED and why is it important to me?  CodeRED is an emergency notification service by which town officials can notify Barnstable residents and businesses by telephone, cellular phone, text message, or electronic mail about time‐sensitive emergency situations or important community alerts.

Frequently asked questions can be reviewed  Be sure to take a moment to learn more about this important notification system.

Sign up at this link for The Barnstable Police Department’s emergency notification system:

Non-emergency questions

Submit requests under FORMS > (online forms) for mark outs, final water readings, seasonal turn on and offs, record change, requests for information and service applications

Our flushing program is complete for 2023. We apologize again for any inconvenience this may have caused and appreciate your support in our efforts to supply clean, safe water. Thank you!
Continue to follow us here and on Facebook for future flushing updates for March 2024.