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System Description


The KID is divided into two geographic areas which is generally divided by the Wilcox Canyon watercourse.  These areas are connected by pipelines between the East and West reservoirs, the Holly and the Vosburg reservoirs and the Eucalyptus and Wilcox reservoirs.  There are several pressure zones within each area which contain additonal reservoirs, a distribution piping network and booster pump stations that receive water from the KID's wells and horizontal water tunnels.

Water Sources

The KID owns and operates two water wells which are the primary source of water for the District.  The Wilcox and K-3 Wells supply the Wilcox and Eucalyptus Reservoirs.  Both wells pump from the Raymond Basin aquifer from which the District has a 516 acre-feet adjudicated pumping allowance.  Both wells are equipped with vertical turbine pumps.  The KID also owns and operates nine water supply tunnels which were originally constructed by hand in the 1800's to serve the ranches in the area.  Currently, five of these tunnels supply water directly to the KID system and four tunnels release water in the local spreading basins.  Tunnel flow rates vary according to the time of year and the annual rainfall and are capable of supplying anywhere from a few gallons per minute up to a hundred gallons per minute or more.

Interconnections and Emergency Equipment

The KID currently maintains and operates six emergency interconnections with the City of Pasadena which can deliver water to the Vosburg, Wilcox and Eucalyptus Reservoirs.  The KID also has six trailer-mounted diesel-powered portable generators for emergency operations at District facilities in the event of a power failure.  Redundant pumps are in place at most facilities in case of pump failures.


The KID operates and maintains ten water storage reservoirs at elevations ranging from 940 feet to 1,637 feet with a total capacity of approximately 4 million gallons.

Booster Pumping Facilities

The KID operates and maintains six booster pumping facilities to move water into the six pressure zones in the system.  They are the Eucalyptus, Sage, Holly, Vosburg, Glen and Wilcox facilities.  Horsepower of the pumps range from 20 to 75 HP depending on location and purpose.  Redundant pumps are in place at most facilities in case of pump failures.


There are approximately 75,000 feet of transmission and distribution mains in the KID service area.  Piping materials include, galvanized steel, AC, PVC and ductile iron and range in size from 2½" to 16" in diameter.  There are 110 fire hydrants providing flows of between 750-3500 gpm with a 20 psi minimum residual pressure.