Second source ensures safety

By From page A8 | February 26, 2013

A community’s water supply serves two purposes: to provide clean, safe water for human consumption and related uses, and to provide large volumes of water periodically for firefighting.

Davis’ water system is evaluated periodically by the Insurance Services Office, a national fire insurance rate-making organization. ISO considers two factors: adequacy and reliability. Adequacy is determined by measuring pressure and flow in a water system. Years of diligent effort by our Public Works and the Fire departments have kept the adequacy of the system above average. The reliability of the system, while sufficient, could be better. One way reliability can be improved is to provide a second, independent source of water into the city water grid.

A community whose sole water source is from wells (powered by electric pumps) is a concern. System reliability is increased when two independent water sources are available, both for domestic use and firefighting.

The city prudently stores several million gallons of water at all times in anticipation of a rare but statistically possible water emergency. The use of surface water as a redundant source to supply this storage would make our city safer.

Bill Greene
Davis Fire Department, retired

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