Staff Reports
SGV – It’s no secret that we are experiencing a severe drought, and that water is in short supply, but the Main San Gabriel Basin 
has been pushed to record lows. Groundwater levels in the Basin will continue to drop if this coming winter does not provide above average rainfall and significant amounts of imported water used to replenish the depleted groundwater supplies are not provided by the Metropolitan Water District of Southern California (MWD).
The Board of Directors for the Upper San Gabriel Valley Municipal Water District (Upper District) has recently approved a resolution adopting a water supply emergency. This District provides wholesale water service, recycled water and groundwater replenishment supplies to retail water providers that serve all, or portions of, 18 cities including Arcadia, Azusa, Baldwin Park, Bradbury, Covina, Duarte, El Monte, Glendora, Industry, Irwindale, La Puente, Monrovia, Rosemead, San Gabriel, South El Monte, South Pasadena, Temple City and West Covina.
This unprecedented action follows three consecutive dry years, with the winter of 2013-14 being a record dry year.
The Upper District’s Board President, Anthony Fellow, said that the recent action is necessary to continue the reliable and safe operation of the Basin’s water supply.
“Groundwater levels continue to hit record lows and weather forecasts predict continued drought-like conditions; the Upper District recognizes it is critical to reinforce the water conservation emergency regulations mandated by the State Water Resources Control Board in August, and also strongly supports Governor Brown’s call for all Californians to reduce their personal water use by 20 percent,” said Fellow.
The Basin is at a record low level of 182 feet above mean sea level as measured at the Key Well, located in Baldwin Park. Over 36 inches of rain is needed to make up for the current shortfall from the last three years. Even more is needed just to return to the low end of the safe operating range.
The Upper District states that without deliveries of imported water, and if the coming winter is as dry as last year, groundwater levels could drop another 20 feet or more. Many groundwater wells will lose production capacity (requiring longer operation times), and several will no longer be able to provide any water. The Main San Gabriel Basin Watermaster is working closely with local water providers to update an emergency water supply plan to deal with this condition and get ahead of the issues before things become even worse.
“MWD will play a critical role in stretching its already thin water supplies to help San Gabriel Valley communities through this drought,” stated Fellow.
Maintaining the safe operating yield of the Basin is critical not only for the management of a reliable watershed, but also in containing the migration of contaminant plumes that are found in the groundwater. Per the Judgment entered into in 1974 by all water rights holders in the Basin, it is the Watermaster’s responsibility to maintain these safe operating levels and manage the Basin. Upper District’s actions support the Watermaster’s responsibility to manage the Basin and ensure that water requested for groundwater replenishment is delivered on the same terms and conditions as provided to other Metropolitan member agencies.
The Upper District’s mission is to provide a reliable, sustainable, diversified and affordable portfolio of high quality water supplies to the San Gabriel Valley, including water conservation, recycled water, storm water capture, storage, water transfers and imported water. The Upper District serves nearly one million people in its 144 square mile territory, using more than 78 billion gallons of water in the service area.
For more information about the Upper District, please visit http://www.upperdistrict.org or call (626) 443-2297.
