Drought in California

An empty water reservoir is seen in the hills above Los Angeles as a severe drought continues to affect the state of California on April 5. California has recently announced sweeping statewide water restrictions for the first time in history in order to combat the region's devastating drought, the worst since records began. (Mark Ralston/AFP/Getty Images)

Sprinklers water the grass at Gleneagles Golf Course on April 2 in San Francisco. Significant cuts in use will be imposed on cemeteries, golf courses and facilities with large landscapes. (Justin Sullivan/Getty Images)

Dry cracked earth is visible on the dry Guadalupe Creek on April 3, in San Jose, Calif. As California enters its fourth year of severe drought and the state's snowpack is at record lows, little water runoff is reaching reservoirs and recharge ponds that capture water and that percolates through the soil to replenish underground aquifers. (Justin Sullivan/Getty Images)

A housing development on the edge of undeveloped desert in Cathedral City, Calif. on April 3.

A snowboarder threads his way through patches of dirt at Squaw Valley Ski Resort, March 21 in Olympic Valley, Calif. Many Tahoe-area ski resorts have closed due to low snowfall as California's historic drought continues. (Max Whittaker/Getty Image)

Homes with swimming pools in Palm Springs, Calif., April 3. The state's history as a frontier of prosperity and glamour faces an uncertain future. (Damon Winter/The New York Times)

California Governor Jerry Brown speaks to reporters at the site of a manual snow survey on April 1, in Phillips, Calif. The recorded level is zero, the lowest in recorded history for California. Gov. Brown went on to announce mandatory statewide water restrictions. (Max Whittaker/Getty Images)

Low water levels are visible at the Los Capitancillos Recharge Ponds on April 3, in San Jose, Calif. As California enters its fourth year of severe drought and the state's snowpack is at record lows, little water runoff is reaching reservoirs and recharge ponds. (Justin Sullivan/Getty Images)

A man stands in an empty public swimming pool in Burbank, Los Angeles, March 19.The state is entering the fourth year of record-breaking drought that has prompted officials to sharply reduce water supplies to farmers and impose strict conservation measures statewide. (Lucy Nicholson/Reuters)

A lush lawn grows at the San Francisco National Cemetery on April 1, in San Francisco. Significant cuts in water use will be imposed on cemeteries, golf courses and facilities with large landscapes. (Justin Sullivan/Getty Images)

A worker climbs stairs among some of the 2,000 pressure vessels used to convert seawater into fresh water through reverse osmosis in the western hemisphere's largest desalination plant in Carlsbad, Calif. on March 11. The Carlsbad Desalination Project, scheduled to start operations in late 2015, is expected to provide 50 million gallons of fresh drinking water a day. (Gregory Bull/Associated Press)

A sprinkler waters a lawn at Golden Gate Park on April 1, in San Francisco, Calif. (Justin Sullivan/Getty Images)

Aerial view overlooking landscaping on April 4, in Ramona, Calif.. Everyone from campuses, golf courses and other industrial and recreational facilities, as well as personal, home useage are specifically targeted. (Sandy Huffaker/Getty Images)

The Guadalupe Creek stands dry on April 3, in San Jose, Calif. Little water runoff is reaching reservoirs and recharge ponds that capture water and that percolates through the soil to replenish underground aquifers. ( Justin Sullivan/Getty Images)

Rafael Surmay, Preston Pahia and Donna Johnson, who distributes drinking water to neighbors, talk about water issues on Feb. 11, in East Porterville, Calif.

A property surrounded by desert in Palm Springs, Calif., April 3. (Damon Winter/The New York Times)

A dust devil forms on an agricultural field in Thermal, Calif., April 3. (Damon Winter/The New York Times)

An employee of the Onelawn landscaping company installs a section of articficial lawn at a home on April 3 in Burlingame, Calif. As California enters its fourth year of severe drought, artificial lawns have emerged as a water saving alternative to traditional lawns. ( Justin Sullivan/Getty Images)

Dead orange trees in a grove in Terra Bella, Calif. on March 13. (Monica Almeida/The New York Times)

Houseboats are dwarfed by the steep banks of Lake McClure on March 24, in Snelling, Calif.

Water depth markers stand on the dry banks of Lake Don Pedro on March 24 in La Grange, Calif. (Justin Sullivan)

Juan Silva manages a temporary dam delivering groundwater to a barley field on Fritz Durst's farm in Zamora, Calif. on April 4.

Footprints and a tire in the dried mud along the backs of the Salton Sea in Coachella Valley, near Palm Springs, Calif., April 3. (Damon Winter/The New York Times)

Skiers ride a chairlift over dry ground at Squaw Valley Ski Resort, March 21, in Olympic Valley, Calif. Many Tahoe-area ski resorts have closed due to low snowfall as California's historic drought continues. (Max Whittaker/Getty Images)

Low water levels are visible at the Los Capitancillos Recharge Ponds on April 3, in San Jose, Calif. ( Justin Sullivan/Getty Images)

A dock that collapsed when the water receded is seen at Lake Cachuma in Santa Barbara, Calif. March 27. (Lucy Nicholson/Reuters)

Aerial view overlooking landscaping on April 4 in San Diego. Everyone from Campuses, golf courses and other industrial and recreational facilities, as well as personal, home useage are specifically targeted. (Sandy Huffaker/Getty Images)

Agricultural runoff heading for the Salton Sea in the Coachella Valley, near Palm Springs, Calif., April 3. (Damon Winter/The New York Times)

East Bay Municipal Utility District (EBMUD) water conservation technician Rachel Garza inspects a newly installed drought tolerant landscaping that a customer will receive a rebate for on April 7, in Walnut Creek, Calif.