Customer Service

The Customer Service Team at Monterey One Water — previously MRWPCA: Monterey Regional Water Pollution Control Agency — is responsible for maintaining 55,000 customer accounts, billing for sewage treatment and disposal, and issuing sewer capacity permits for new construction. Customer Service ensures billing equity for all of its residential, commercial, industrial and military users..

We're Here to Help

7:30 a.m. to 5:30 p.m. Monday through Thursday

7:30 a.m. to 5:00 p.m. Fridays

5 Harris Court, Bldg D
Monterey, CA 93940

(831) 372-3367
or (831) 422-1001

or email Customer Service

Manage your account online, including e-Billing, using our secure customer portal:
Customer Account Log In

To make a one-time payment, visit the secure online payment portal:
Make a One-time Payment

Administrative Offices