Determination of Availability

San Mateo County and the Town of Woodside require water purveyors to determine the availability of water to serve potential projects within their jurisdiction. Availability is determined by the composition of the requirements which is determined by multiple entities and the existing water system capabilities. Certain components of the determination are described in this summary. To receive the Skyline County Water District Determination of Availability, (DA) an application for a new or upgrade to a service connection must be submitted with the appropriate fees, reviewed and approved.

Upgrade Service – Meter Size

An existing domestic water service connection shall be evaluated to determine if the size of the existing meter will adequately supply the flow requirement of the proposed project. If the DA, necessitates the additional capacity of a larger meter, the applicant shall pay the Connection Charge, Facility Fee and other applicable charges, (see Summary of Current Rates & Charges). The applicant may request a of reduction to the plant and facility fee by an amount equal to the fee for the size of the existing meter

New Service – Meter Size

Meter size is determined by Skyline County Water District based upon review of design submittals by a licensed automatic sprinkler design contractor. Applicants shall submit one copy of the site plan and fire sprinkler plans with the flow and pressure required prior to determination of water availability. To process the DA, the applicant shall pay the Connection Charge, Facility Fee and other applicable charges, (see Summary of Current Rates & Charges).

Backflow Device Required

SCWD requires a reverse pressure principal backflow prevention device on the customer's side of the meter, for service connections that:

  • include automatic fire suppression systems,
  • have an alternative water supply
  • have recycled water or other non-potable conditions
  • have water storage facilities
  • have pressure systems.

Cross-connections without backflow prevention pose a serious threat to water quality. A cross-connection is a physical connection between a potable (drinking) water supply and a source of contamination. To protect your health and the health of others, backflow prevention devices are mandatory for fire sprinkler systems. This prevents the backflow of water from the Customer's system into Skyline CWD's distribution system. The District's responsibility for water quality and maintenance ends at the water meter. Skyline CWD' Backflow Device Oversight Program monitors Customer compliance with required annual inspection of all backflow devices. However, Customers, not the District, are responsible for proper maintenance of fire sprinklers and ensuring proper installation and working order of all backflow prevention devices.

PLUMBING MODIFICATIONS, FAILURE TO INSTALL OR MAINTAIN, IMPROPER INSTALLATION OF, REMOVAL OF, OR TAMPERING WITH, A BACKFLOW PREVENTION DEVICE MAY RESULT IN DISEASE, ILLNESS OR EVEN DEATH.

System Improvement Project

All applications for water service must be evaluated to determine if the SCWD's distribution system is adequate to supply the service requirements. Applicants will be informed of the determination that a system improvement is required to supply the proposed project. The system improvement must be designed by a registered civil engineer and submitted to the district for approval prior to issuance of the building permit.

Skyline County Water District considers a system improvement project any construction, addition and/or upgrade involving the District's distribution system. System improvement projects require Board approval, legal agreements, deposits, bonds, and insurance. A compilation of District rules, regulations, standards and specifications is available and provided upon request.