Greater Cincinnati Water Works (GCWW)
Greater Cincinnati region, including Cincinnati and parts of Hamilton, Butler, Warren, and Clermont counties in Ohio plus Boone County, Kentucky
Population reference
More than 1.1 million people in the regional service area; GCWW supplies more than 43 billion gallons annually and also acts as a billing agent for some local sewer and stormwater utilities.
Billing detail
Broad public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Billing frequency
- Monthly. GCWW's current 2026 residential rate page says water customers are billed monthly, and the billing information page says the paper bill is mailed 21 days before the due date. A consolidated GCWW statement may also include sewer, stormwater, waste collection, or other municipality-specific services depending on the service address.
- Rate structure
- A fixed meter-size service/base charge plus a water commodity charge based on monthly cubic-feet consumption. For a Cincinnati city 5/8-inch residential meter in 2026, the published example uses a $9.26 monthly service charge and a $3.86-per-CCF commodity rate; GCWW implemented a 5.55% water-rate increase on January 1, 2026. Rates vary by community, meter size, and customer class, with Mason having its own residential schedule.
- Residential cost reference
- GCWW's 2026 Cincinnati example for a single-family household using 8.33 CCF, approximately 6,230 gallons, is $41.30 per month for water alone: $9.26 service charge plus $32.04 commodity charge. A 5,000-7,000-gallon household should therefore budget roughly $34-$45 monthly for GCWW water before sewer, stormwater, waste, fire-hydrant, or community-specific charges. GCWW's bill may be materially higher after the Metropolitan Sewer District winter-average sewer charge and any local stormwater services are added.
- Wastewater and sewer calculation
- GCWW acts as billing agent for the Metropolitan Sewer District of Greater Cincinnati in Cincinnati and for Mason's local sewer utility in Mason. For Cincinnati residential customers, MSD uses a winter-period average/history-based consumption method: the property's winter water usage establishes a sewer-usage cap or maximum for the rest of the year, subject to MSD's rules. Mason uses the property's average monthly consumption from December through April for its annual sewer cap. Sewer, stormwater, and other utility charges can appear on the consolidated GCWW bill but are governed by the local sewer or stormwater provider rather than GCWW's water commodity rate.
- Meter reading
- GCWW uses H2O Radio automatic meter reading: a radio unit attached to the meter transmits the reading to a vehicle driving the street, eliminating routine interior visits. The meter-reading page says regular reads support usage management and leak detection, and an actual read normally appears as 'Actual' in the bill's reading-type detail; an estimated bill can occur when access or equipment prevents a read. GCWW bills monthly, uses cubic feet as the measurement unit, and owns, installs, and maintains the meter while the customer must keep it accessible and protected from damage.
- New-account deposit
- The current GCWW customer-facing pages reviewed do not publish a universal residential startup-deposit amount or credit-score waiver rule. Service setup, owner liability, and any account-specific deposit or security requirement should be confirmed with GCWW at (513) 591-7700 before activation. The property owner is the legal GCWW account holder for service at the property, even where a tenant receives a courtesy bill or enters a payment arrangement.
- Activation or transfer fee
- The reviewed current GCWW billing and contact pages do not state one universal residential activation or ordinary account-transfer fee. Customers should contact (513) 591-7700 for service-start, owner/tenant, meter, and account-responsibility requirements. Physical branch installation, meter work, special inspections, and disconnection/reconnection trips are separate charges under GCWW's service rules; a nonpayment disconnection trip is at least $35.
Context, not a score
How documentation coverage compares
This profile
100%
overview fields with research notes
Ohio
41%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Broad public detail found
7 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
100%
Primary verification routes
- Greater Cincinnati Water Works (GCWW) public website ↗
Provider-controlled destination used to confirm current customer instructions.
- gcww.promise-pay.com reference ↗
Public URL preserved in the compiled record. Confirm its publisher, date, and applicability before relying on it.
- EPA Safe Drinking Water Information System ↗
Federal background on public water-system records and their limitations.