Municipal Department
City of Somerville Water and Sewer Department
Serving Somerville
Population served
81,045 people (EPA SDWIS active CWS PWS MA3274000)
State system code
FIPS 25
Billing frequency
Quarterly. Residential triannual billing moved to quarterly; bills are normally sent within 10 business days of the billing date and are due 45 days from the billing date.
Provider briefing
How this utility’s billing works
City of Somerville Water and Sewer Department operates as a municipal department serving Somerville. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.
The published water-rate framework is described as FY26 tiered water/sewer consumption rates with quarterly base charges. The City approved changes to volumetric water and sewer rates, fixed charges, and residential tiers; the reviewed page lists a 5/8-inch combined quarterly base of $45 ($15 water plus $30 sewer).. Bills are generated quarterly. residential triannual billing moved to quarterly; bills are normally sent within 10 business days of the billing date and are due 45 days from the billing date., and a typical residential cost reference is A dedicated this detail was not publicly posted. As a complete total; use the current FY26 tier table, quarterly base, and account consumption. Somerville bills every three months and does not present the directory with a single monthly amount.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.
Wastewater and sewer calculation
Sewer is billed from metered consumption using its own progressive tier and fixed charge. The reviewed schedule did not state a universal winter-average cap.
Meter and infrastructure notes
Somerville provides WaterScope/leak-monitoring resources and has a meter replacement program, but the reviewed pages did not identify one universal AMI vendor or transmission interval.
Emergency water support
Report a leak or water emergency
311, or 617-666-3311 outside Somerville, to report water or sewer problems; routine Water Department contact is 617-625-6600 extension 5850.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Somerville
City of Somerville Water and Sewer Department is listed here as a municipal department. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.