Private Investor-Owned Utility
Great Oaks Water Company
Serving Blossom Valley, Santa Teresa, Edenvale, Coyote Valley and Almaden Valley areas of San Jose
Population served
110,088 in the EPA queue estimate; Great Oaks separately reports more than 20,000 customers
State system code
FIPS 06
Billing frequency
Bi-monthly; Great Oaks states that residential customers receive six bills per year, with each example billing period approximately 54-66 days.
Provider briefing
How this utility’s billing works
Great Oaks Water Company operates as a private investor-owned utility serving Blossom Valley, Santa Teresa, Edenvale, Coyote Valley and Almaden Valley areas of San Jose. 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 readiness-to-serve monthly meter charge plus increasing-block residential usage tiers billed in 100-cubic-foot units (1 CCF = 748 gallons), with separate uniform rates for non-residential customers. The July 1, 2026 schedule lists a 3/4-inch monthly readiness charge of $32.49 and residential usage rates of $2.9454 per CCF for 0-12 CCF, $5.0831 for more than 12 through 20 CCF, and $7.0177 above 20 CCF, plus applicable purchased-power, CAP, CPUC and San Jose tax charges.. Bills are generated bi-monthly; great oaks states that residential customers receive six bills per year, with each example billing period approximately 54-66 days., and a typical residential cost reference is Approximately $62 per month for a standard 3/4-inch residential meter using 6,000 gallons monthly, annualized from the July 1, 2026 bi-monthly structure: roughly 16 CCF per two-month bill, $64.98 readiness charge, tiered usage, the published $0.1469 purchased-power and $0.1917 CAP surcharges, then the 0.70% CPUC surcharge and 5% San Jose tax. Actual bills vary with meter size, service days, CAP enrollment and surcharges.. 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
Great Oaks is a potable-water company and the reviewed tariff/rate pages describe water charges only. No Great Oaks residential sewer/wastewater intake formula, winter average or sewer percentage is published for this record; sewer service may be billed by another provider in the service area.
Meter and infrastructure notes
Residential meters are read for the bi-monthly billing cycle, but the reviewed Great Oaks pages do not identify AMR/AMI radio technology or a transmission interval. The bill-calculation page states that consumption equals ending meter read less beginning meter read over an approximately 54-66-day cycle.
Emergency water support
Report a leak or water emergency
(408) 879-8246, after-hours emergency telephone number. The regular customer-service line is (408) 227-9540 during Monday-Friday office hours.
Official starting point
Choose the right next step
Reading this profile
A practical reference for Blossom Valley, Santa Teresa, Edenvale, Coyote Valley and Almaden Valley areas of San Jose
Great Oaks 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.