Municipal Department
City of Somerville Water and Sewer Department
Serving Somerville
Population served
81,045 people
State system code
FIPS 25
Billing frequency
Quarterly; residential bills are issued four times per year under the FY27 schedule. Bills are typically sent within 10 business days of the billing date, and payment is due 45 days from that 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 Increasing block tiers billed per CCF/HCF, with separate water and sewer volumetric charges and meter-size base charges. Under the FY27 schedule, residential quarterly tiers are 0-9 CCF, 10-18 CCF, and over 18 CCF; FY27 rates are $8.40, $10.50, and $12.59 per CCF for water and $14.16, $17.97, and $21.57 for sewer.. Bills are generated quarterly; residential bills are issued four times per year under the fy27 schedule. bills are typically sent within 10 business days of the billing date, and payment is due 45 days from that billing date., and a typical residential cost reference is At 6,000 gallons (about 8.02 CCF) in a 5/8-inch residential account, the FY27 first-tier combined charge is approximately $180.93 per quarterly bill plus $45 in quarterly water/sewer base charges, or about $225.93 quarterly and $75.31 per month equivalent. Actual bills vary by district schedule, meter read, and any additional municipal charges.. 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 calculated from the same metered water volume in CCF, not from a separate household wastewater meter. For FY27 residential quarterly billing, the sewer component is $14.16 per CCF for 0-9 CCF, $17.97 for 10-18 CCF, and $21.57 above 18 CCF, plus a meter-size sewer base charge; no winter-average cap was described in the reviewed rate schedule.
Meter and infrastructure notes
Somerville is replacing meters with smart water meters and automatic reading devices, with WaterScope access for usage monitoring and leak detection. The reviewed materials do not state a fixed transmission interval or universal monthly read date; residential billing is quarterly under the current schedule.
Emergency water support
Report a leak or water emergency
311 within Somerville, or 617-666-3311 from outside the city, to report a water or sewer problem. The department also publishes 617-625-6600, extension 5850, for water and sewer customer service during Monday-Friday, 8:00 a.m.-4:00 p.m.
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.