A coalition of non-profits is asking a superior court to reverse a state agency’s decision to greenlight a long-proposed, controversial desalination plant in Huntington Beach. … The Poseidon desalination plant has been proposed for the site of the AES power plant on Pacific Coast Highway in Huntington Beach for nearly 20 years, and has been continually challenged and fought by environmental groups.
The thousands of miles of concrete channels diverting street water from the San Gabriel and Los Angeles rivers represent the last major water project in Los Angeles County, built almost 100 years ago. On Thursday, Dave Sorem, owner and vice president of Mike Bubalo Construction Co., showed off the first of a second wave of street-water projects that elevate what is essentially water pollution into a drinkable water source.
One of the nation’s most successful partnerships between farm and urban water agencies has lately run into serious turbulence, potentially threatening an important Colorado River water-sharing deal. Twelve years ago, the Palo Verde Irrigation District in Blythe, California, signed an agreement with the powerful Metropolitan Water District of Southern California.
California regulators on Tuesday approved a plan to spend nearly $400 million over 10 years to slow the shrinking of the state’s largest lake, a vital migratory stop for birds and a buffer against swirling dust in farming towns. Funding for the Salton Sea is unclear but the plan enjoyed support of major water agencies and environmental advocacy groups and preserves a fragile peace among urban and rural areas in California on distributing the state’s share of Colorado River water.
During California’s five-year drought, the row of ponds in the desert north of the Palm Springs often lay empty and dry. But this year, the ponds have been filled to the brim with a record amount of water from the Colorado River. The Coachella Valley’s water utilities are using the influx of imported water to chip away at the long-term problem of groundwater overdraft.
A troublesome invasive species is the quagga mussel, a tiny freshwater mollusk that attaches itself to water utility infrastructure and reproduces at a rapid rate, causing damage to pipes and pumps.
First found in the Great Lakes in 1988 (dumped with ballast water from overseas ships), the quagga mussel along with the zebra mussel are native to the rivers and lakes of eastern Europe and western Asia, including the Black, Caspian and Azov Seas and the Dneiper River drainage of Ukraine and Ponto-Caspian Sea.
Flowing into the heart of the Mojave Desert, the Mojave River exists mostly underground. Surface channels are usually dry absent occasional groundwater surfacing and flooding from extreme weather events like El Niño.
Prado Dam – built in 1941 in response to the Santa Ana River’s flood-prone past – separates the river into its upper and lower watersheds. After the devastation of the deadly Los Angeles Flood of 1938 that impacted much of Southern California, it became evident that flood protection was woefully inadequate, prompting the U.S. Army Corps of Engineers to construct Prado Dam.
The Colorado River Aqueduct, a 242-mile-long channel completed in 1941 by the Metropolitan Water District of Southern California, carries water from the Colorado River to to urban Southern California. The aqueduct is one of three conveyance systems of imported water to Southern California, the other two being the California Aqueduct and the Los Angeles Aqueduct.
With a holding capacity of more than 260 billion gallons, Diamond Valley Lake is Southern California’s largest reservoir. It sits about 90 miles southeast of Los Angeles and just west of Hemet in Riverside County where it was built in 2000. The offstream reservoir was created by three large dams that connect the surrounding hills, costing around $1.9 billion and doubling the region’s water storage capacity.
As one of the most productive agricultural regions in the world, the Imperial Valley receives its water from the Colorado River via the All-American Canal. Rainfall is scarce in the desert region at less than three inches per year and groundwater is of little value.
This issue looks at the dilemma of the shrinking Salton Sea. The shallow, briny inland lake at the southeastern edge of California is slowly evaporating and becoming more saline – threatening the habitat for fish and birds and worsening air quality as dust from the dry lakebed is whipped by the constant winds.