SACRAMENTO – Following significant increases in statewide rainfall and mountain snowpack this season, on Wednesday Governor Jerry Brown proclaimed an end to the state’s drought, but urged Californians to keep conserving water as we move into the spring and summer months.

“While this season’s storms have lifted us out of the drought, it’s critical that Californians continue to watch their water use,” Brown said. “Drought or no drought, demand for water in California always outstrips supply. Continued conservation is key.”

Brown issued a proclamation officially rescinding Executive Order S-06-08, issued on June 4, 2008, by former Gov. Arnold Schwarzenegger, and ends the States of Emergency Schwarzenegger called on June 12, 2008, and on Feb. 27, 2009.

Brown's announcement came the same day as the state Department of Water Resources' fourth snow survey of the season found that water content in California’s mountain snowpack is 165 percent of the April 1 full season average.

“Recent storms have significantly contributed to the above-average snowpack, helping to stabilize California’s water supply for the year,” said DWR Director Mark Cowin. “While this is beneficial for California’s farms, businesses and communities, we remind residents to practice sensible water use and conservation as we transition to warmer weather.”

 

Water Resources said Wednesday's manual survey and electronic readings are the most important of the year, since April 1 is when the state’s snowpack normally is at its peak before it melts into streams and reservoirs in the spring and summer months.

March precipitation has helped register 2011 among the top years in snowpack water content, despite dry weather conditions in January and early February, the state said.

The mountain snowpack provides approximately one-third of the water for California’s households, industry and farms as it melts into streams and reservoirs.

Electronic readings indicate that water content in the northern mountains is 174 percent of the April 1 seasonal average.

Electronic readings for the central Sierra show 163 percent of the April 1 average. The number for the southern Sierra is 158 percent. The statewide number is 165 percent

On March 1, the date of this winter’s third manual survey, percentages of the snowpack’s normal water content were 109 percent of the full season average, 103 percent for the northern Sierra, 106 percent for the central Sierra, and 119 percent in the south.

On this date last year, snowpack water content readings of the April 1 average were 123 percent in the north, 88 percent in the central ranges, 102 percent in the south, and 102 percent statewide.

California’s reservoirs are fed both by rain and snowpack runoff.

A majority of the state’s major reservoirs are also above normal storage levels, the state said.

Lake Oroville in Butte County, the State Water Project’s principal reservoir, is 104 percent of average for the date (80 percent of its 3.5 million acre-foot capacity). Lake Shasta north of Redding, the federal Central Valley Project’s largest reservoir with a capacity of 4.5 million acre-feet, is at 111 percent of average (91 percent of capacity).

DWR estimated it will be able to deliver 70 percent of requested State Water Project (SWP) water this year. The estimate likely will be adjusted upward as hydrologists make adjustments for snowpack and runoff readings.

The SWP delivers water to more than 25 million Californians and nearly one million acres of irrigated farmland.

In 2010, the SWP delivered 50 percent of a requested 4,172,126 acre-feet, up from a record-low initial projection of 5 percent due to lingering effects of the 2007-2009 drought. Deliveries were 60 percent of requests in 2007, 35 percent in 2008, and 40 percent in 2009.

Given the heavy water inflow from the series of storms that have swept across California, the state’s flood managers are monitoring high river flows and making flood control releases from reservoirs to maintain storage space.

The last 100 percent allocation – difficult to achieve even in wet years due to pumping restrictions to protect threatened and endangered fish – was in 2006, Water Resources said.

 

Follow Lake County News on Twitter at http://twitter.com/LakeCoNews , on Facebook at http://www.facebook.com/pages/Lake-County-News/143156775604?ref=mf and on YouTube at http://www.youtube.com/user/LakeCoNews .