Private Investor-Owned Utility
Connecticut Water Company
Serving 60 Connecticut towns, including the Connecticut Water Division, Crystal, Mansfield, Unionville, Storrs, Middlebury, Heritage Village, and other local divisions
Population served
More than 107,000 water customers in 60 Connecticut towns, representing approximately 360,000 people; the company also reports about 3,000 wastewater customers in Southbury.
State system code
FIPS 09
Billing frequency
Most residential customers are billed quarterly, with some larger business and commercial accounts billed monthly. The number of days can vary slightly by meter-reading route, and the 2026 rate sheets calculate the basic service and usage charges for the actual billing period.
Provider briefing
How this utility’s billing works
Connecticut Water Company operates as a private investor-owned utility serving 60 Connecticut towns, including the Connecticut Water Division, Crystal, Mansfield, Unionville, Storrs, Middlebury, Heritage Village, and other local divisions. 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 PURA-approved basic service charge by meter size plus metered volumetric usage, with increasing conservation tiers and variable regulatory adjustments. For the Connecticut Water Division effective January 1, 2026, a 5/8- or 3/4-inch residential meter has a $42.24 quarterly basic charge, and usage is $10.941 per 1,000 gallons for the first 18,000 gallons, $12.941 for 18,001–30,000 gallons, and $18.941 above 30,000 gallons. Bills may also include WICA, WRA, and WQTA surcharges or credits authorized by PURA.. Bills are generated most residential customers are billed quarterly, with some larger business and commercial accounts billed monthly. the number of days can vary slightly by meter-reading route, and the 2026 rate sheets calculate the basic service and usage charges for the actual billing period., and a typical residential cost reference is For a Connecticut Water Division 5/8- or 3/4-inch residential account using 5,000 gallons per month, the 2026 base calculation is approximately $14.08 monthly basic charge plus $54.705 usage, or $68.79 per month before WICA, WRA, WQTA, taxes or other approved charges. Because the company bills most residences quarterly, the comparable base bill is about $206.37 for 15,000 gallons before those adjustments; the applicable division may have different rates.. 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
Connecticut Water provides water service statewide and wastewater service to about 3,000 Southbury customers, but it does not publish one universal sewer formula for every water customer. In many Connecticut communities, a municipality or separate wastewater authority bills sewer using metered water consumption, so a leak can increase both water and sewer charges. Customers should consult the sewer line on their local bill or the town’s sewer authority; a universal winter-average or fixed-percentage tie-in was not published in the reviewed Connecticut Water materials.
Meter and infrastructure notes
Connecticut Water uses customer water meters read on neighborhood routes, with meters recording gallons or cubic feet and remote outside reading devices available for some inside installations. The public meter page says residential meters may be inside basements, crawlspaces, or utility closets or in outdoor pits; the company changes and tests meters every 16 years under PURA requirements. Residential customers are generally read and billed quarterly, while some commercial customers are monthly. If an actual read cannot be obtained because of access, equipment, damage, or a blocked pit, the company estimates usage using prior-year or recent comparable trends; the reviewed public pages do not identify one AMI vendor or guaranteed hourly transmission interval.
Emergency water support
Report a leak or water emergency
1-800-286-5700 is Connecticut Water’s published customer-service and 24-hour emergency number for water emergencies, leaks, main breaks, and water-quality concerns. Routine representative hours are Monday through Friday, 8:00 a.m. to 4:30 p.m., but emergency assistance is advertised around the clock.
Official starting point
Choose the right next step
Reading this profile
A practical reference for 60 Connecticut towns, including the Connecticut Water Division, Crystal, Mansfield, Unionville, Storrs, Middlebury, Heritage Village, and other local divisions
Connecticut Water Company is listed here as a private investor-owned utility. 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.