Contact Us at 508-432-0304  |  24/7 Voice Prompt for Emergency

Meeting the needs of our customers is a primary concern of the Harwich Water Department. Whether it has to do with water bills, water service, water quality or a wide variety of other questions, Harwich Water Department personnel are prepared to assist customers wherever possible.

LOCATION AND PAYMENT LOCATION AND PAYMENT REMITTANCE ADDRESS

Water Department Office  Location Map      Payment Remittance Address
Location, not remittance address Without payment coupon     With payment coupon*      
196 Chatham Road Collector of Taxes *As of December 2025
Harwich MA 02645 Town of Harwich Town of Harwich
508-432-0304 732 Main Street PO Box 848235
water@harwich-ma.gov Harwich MA 02645 Boston, MA 02284-8235

PAY BY PHONE 24/7 844-953-0665 or Pay Now online

HOURS: Monday through Friday from 8:00 a.m. to 4:30 p.m., with the exception of Holidays

EMERGENCY: Dial 508-432-0304 and follow voice prompt for emergency 24/7

Phone:  508-432-0304  |  Fax: 888-774-3557                                            

DEPARTMENT EMAIL

Board of Water Commissioners commissioners@harwichwater.com
Superintendent        jason.trepanier@harwich-ma.gov
Assistant Water Superintendent      steve.hicks@harwich-ma.gov
Assistant Wastewater Superintendent jonathan.long@harwich-ma.gov
Treatment Operator david.nicholson@harwich-ma.gov / dana.milan@harwich-ma.gov 
Comptroller (AP/Finance) sandra.sieger@harwich-ma.gov
Billing Administrator (AR/Billing) water.billing@harwich-ma.gov
Customer Service water@harwich-ma.gov