Private Investor-Owned Utility
Liberty Utilities (New York Water) Corp. - Merrick System
Serving Merrick and western Nassau County
Population served
135,000
State system code
FIPS 36
Billing frequency
A dedicated this detail was not publicly posted. For a single fixed interval; Liberty bills customers on their regular bill date, and the public rate-filing materials state that customers continue their existing billing frequency. Budget Billing can spread charges across the year using a rolling 12-month history.
Provider briefing
How this utility’s billing works
Liberty Utilities (New York Water) Corp. - Merrick System operates as a private investor-owned utility serving Merrick and western Nassau County. 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 New York Public Service Commission tariffed investor-owned water rates; Merrick’s current tariff is subject to a Liberty rate request filed May 29, 2026. Liberty reported that the requested increase for an average Merrick residential customer using 8,000 gallons per month would be $21.20, but the filing is a request rather than a confirmed final tariff.. Bills are generated a dedicated this detail was not publicly posted. for a single fixed interval; liberty bills customers on their regular bill date, and the public rate-filing materials state that customers continue their existing billing frequency. budget billing can spread charges across the year using a rolling 12-month history., and a typical residential cost reference is A dedicated this detail was not publicly posted. As a final 2026 total because Liberty filed a May 29, 2026 rate request and the public page reports the proposed Merrick impact ($21.20 more per month at 8,000 gallons) rather than a final post-proceeding bill. Customers should use the bill’s current tariff and meter/service charges for an exact estimate.. 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
The reviewed Liberty Merrick water pages do not publish a universal sewer calculation. Where Liberty bills wastewater, the applicable local or tariffed sewer charge is account-specific; customers should use their bill and local service terms rather than assume a winter-average or fixed percentage formula.
Meter and infrastructure notes
Liberty is deploying Advanced Metering Infrastructure for Long Island customers. The customer portal and EyeOnWater provide usage graphs, neighborhood comparisons, and leak notifications; the reviewed pages do not state the exact Merrick read/transmission interval or completion percentage of the AMI rollout.
Emergency water support
Report a leak or water emergency
1-877-426-6999, Liberty New York Water emergency line available 24/7.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Merrick and western Nassau County
Liberty Utilities (New York Water) Corp. - Merrick System 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.