Pay your bill or manage your account

The Great Salt Bay Sanitary District offers several easy ways to pay your bill:

Pay Online

Great Salt Bay Sanitary District is excited to offer residents an easy, convenient and secure method to pay your water and sewer bills online through the customer portal (more info below). Make a one-time payment or sign up for autopay with credit/debit card or e-check. Visa, MasterCard, Discover, and American Express are accepted forms of credit/debit card payment. A convenience fee of 2.25% will be charged for all credit/debit card transactions and $1.25 for all e-checks. Balances over $800.00 will need to be processed as multiple transactions using a credit/debit card, or can be processed in a single transaction using an e-check. Because of the $800.00 transaction cap for using credit/debit cards, autopay will not process balances over $800.00 for this payment method, so it is recommended you use the e-check payment method.

Clicking the link below will take you to the customer portal.


Using the Customer Portal

The Customer Portal provides you with the opportunity to access your account information and activity. In addition, you will be able to pay your bills using the portal.

  • Create your own portal account through self-registration
  • Sign up for eBills
  • View or print your bills (current or previous)
  • View your billing, payment, and adjustment history
  • View additional customer accounts under one portal account
  • View your usage history
  • Pay your bills via Electronic payment
  • Sign up for autopay

Click on the button above to sign up today using your account number and CID number located on your bill.

Need help signing up? Contact Deb at (207) 563-5105 or

Pay by Check

Please make your check payable to Great Salt Bay Sanitary District. For your convenience, there are three options for paying by check:

  • Drop your check off at the upstairs checkout at Reny’s Underground, located at 163 Main Street in Damariscotta.
  • Deliver your check in person to our District office at 121 Piper Mill Road in Damariscotta.
  • Mail your check to:
    Great Salt Bay Sanitary District
    P.O. Box 23
    Damariscotta, ME 04543

Pay in Person

Our District office is located at 121 Piper Mill Road in Damariscotta. We accept payment by cash, check, or credit/debit card (Visa, MasterCard, Discover, or American Express).