Private Investor-Owned Utility
Fontana Water Company, a San Gabriel Valley Water Company division
Serving Fontana and portions of Rialto, Rancho Cucamonga, and nearby unincorporated San Bernardino County
Population served
Approximately 237,700 people and roughly 47,000 service connections in the current 2026 SDWIS-derived public system presentation for active PWS CA3610041; the official state annual report previously recorded 228,140 permanent residents and identified the majority of Fontana plus portions of Rialto, Rancho Cucamonga, and San Bernardino County as the service area.
State system code
FIPS 06
Billing frequency
Monthly, with meters read and billed by geographic cycles. Fontana says it attempts to read all meters within 27–33 days, and its billing instructions describe monthly service charges and consumption units.
Provider briefing
How this utility’s billing works
Fontana Water Company, a San Gabriel Valley Water Company division operates as a private investor-owned utility serving Fontana and portions of Rialto, Rancho Cucamonga, and nearby unincorporated San Bernardino 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 CPUC-regulated general metered conservation rates with three increasing consumption tiers and a fixed meter service charge. The publicly indexed 2026 tariff material for the 5/8-by-3/4-inch residential meter shows $21.68 per month, $4.5048 per CCF for the first 12 CCF, $5.1580 for the next 12 CCF, and $6.6610 for consumption above 24 CCF, subject to CPUC-approved surcharges and surcredits. Fontana’s regulatory page also links a July 2026 General Rate Case advice letter effective July 20, 2026; the PDF was access-blocked during native review, so customers should confirm the effective tariff with the company or CPUC before treating the indexed figures as the final post-July rate.. Bills are generated monthly, with meters read and billed by geographic cycles. fontana says it attempts to read all meters within 27–33 days, and its billing instructions describe monthly service charges and consumption units., and a typical residential cost reference is The company’s official 2026 General Rate Case fact sheet estimates $90.50 per month for a typical 5/8-inch conservation-rate customer using 12 CCF (about 8,977 gallons), up from $79.73, and $74.15 for a qualifying CAP customer. A 5,000–7,000-gallon customer uses about 6.7–9.4 CCF and will generally fall below the 12-CCF example, but the exact bill depends on the effective CPUC tariff, meter charge, CAP status, and applicable 2026 surcharges or surcredits. Fontana Water Company provides potable water only; it does not bill sewer or wastewater service.. 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
Fontana Water Company provides potable water service only and explicitly states that it does not provide sewer or power services. Therefore, the company does not calculate or collect a wastewater charge relative to clean-water intake, does not use a winter-average sewer formula, and does not apply a flat sewer percentage. Any sewer bill for a customer in Fontana, Rialto, or Rancho Cucamonga comes from the separate municipal or regional wastewater provider serving that parcel.
Meter and infrastructure notes
Fontana reads and bills all meters in geographic cycles every 27–33 days. The company supports both classic mechanical meters and AMR meters: classic meters display cubic-foot totals and ignore the final two black-background digits for billing, while AMR meters display total cubic feet and ignore the final five digits. AMR displays can show a faucet icon for intermittent or continuous leakage during the prior 24 hours. The reviewed materials do not establish full AMI hourly transmission; the defensible description is scheduled monthly-cycle reading with classic and automated meter-reading equipment.
Emergency water support
Report a leak or water emergency
(909) 428-8746, the company’s 24-hour emergency line for after-hours or weekend main breaks, service leaks, valve or hydrant damage, and pressure issues. A Central Control Operator assesses the report, creates a work order, and dispatches crews when needed. Routine customer-service and billing matters use (909) 822-2201.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Fontana and portions of Rialto, Rancho Cucamonga, and nearby unincorporated San Bernardino County
Fontana Water Company, a San Gabriel Valley Water Company division 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.