At the end of 2017, several local rice farmers teamed up with researchers for a pilot program known as “Fish in the Fields” through the Resource Renewal Institute, a nonprofit research and natural resource policy group, to see what would happen when fish were introduced to flooded rice fields. Now in its second year of experiments, researchers have concluded that it works, with methane – a climate-changing byproduct of rice agriculture much more detrimental than carbon dioxide – being reduced by about two-thirds, or 65 percent, in flooded fields that had fish in them.
The Trump administration’s proposal might seem simpler to follow on wetlands because it wouldn’t protect those that are dry most of the time and don’t connect to larger downstream waters. But navigating the definition could be confusing when it comes to wetlands that do connect to streams that are dry during parts of the year.
Many no longer recall the Great Midwest Flood despite its record-breaking precipitation, flooding and $13 billion price tag. Sure, 1993 seems like a long time ago, but I believe the reason the flood has left most people’s memory is because, over the last 25 years, the nation has experienced one devastating, record-breaking flood after another. Our memories are diluted by the frequency of such events.
In increasingly arid regions such as the western U.S., water managers are learning that careful management and restoration of watershed ecosystems, including thinning trees and conducting prescribed burns, are important tools in coping with a hotter, drier climate.
When 2019 started, California’s snowpack was at 67%. Now it’s at over 136% and rising. The atmospheric rivers that are dumping rain along coastal California are also dumping massive amounts of snow in the state’s Sierra Nevada.
Although it might sound absurd to those who still recall five years of withering drought and mandatory water restrictions, researchers and engineers warn that California may be due for rain of biblical proportions — or what experts call an ARkStorm. … In heavily populated areas of the Los Angeles Basin, epic runoff from the San Gabriel Mountains could rapidly overwhelm a flood control dam on the San Gabriel river and unleash floodwaters from Pico Rivera to Long Beach, says a recent analysis by the U.S. Army Corps of Engineers.
Too often, entrenched conflicts that pit water user against water user block efforts to secure a sustainable, equitable, and democratic water future in California. Striking a balance involves art and science, compassion and flexibility, and adherence to science and the law. Felicia Marcus is a public servant unknown to many Californians. But as she concludes her tenure as chair of the State Water Resources Control Board, we owe her a debt of gratitude for consistently reaching for that balance.
A landslide that dumped about 6 million cubic yards of rock and debris across California Highway 1 near near Big Sur, California, in May 2017 was the result of drought followed by deluge, a team of scientists say. … The researchers determined that water replaces air in the tiny spaces between soil particles, which greatly increased the pressure on those particles, speeding up the rate of collapse.
There may be more in the sewage-tainted water that regularly spills over the border from Tijuana than many San Diegans realize. The cross-border pollution also contains potentially dangerous industrial and agricultural chemicals, according to a draft report compiled by U.S. Customs and Border Protection that was circulated to officials throughout the region on Wednesday.
An atmospheric river storm that walloped the Bay Area on Thursday, causing traffic snarls, flood scares and at least one major mudslide that wrecked homes and cars, has finally left Northern California. … The biggest storm of the winter so far also delivered something quite valuable: a boost to the Sierra Nevada snowpack to 102 percent of its historical average for April 1. In other words, California already has the equivalent of an average winter’s snow supply, with six weeks still left to go in this year’s winter rain and snow season.
The interrelated nature of water issues has given rise to a management approach that integrates flood control, environmental water, and water supply. The Yuba Water Agency manages its watershed in this kind of coordinated manner. We talked to Curt Aikens, the agency’s general manager, about the lessons they’ve learned from this “integrated management” approach.
Thursday, the National Oceanic and Atmospheric Administration announced that El Niño — the periodic warming of the tropical Pacific Ocean, with weather consequences worldwide — has officially arrived. El Niño typically peaks between October and March, so it’s pretty late in the season for a new one to form. This year’s El Niño is expected to remain relatively weak, but that doesn’t mean this one won’t be felt — in fact, its cascading consequences already in motion.
Major dams in California are five times more likely to flood this century than the last one due to global warming, a new study finds, possibly leading to overtopping and catastrophic failures that threaten costly repairs and evacuations. That means Californians can expect more disasters like the Oroville Dam, whose overflow channel failed in 2017 after days of flooding had filled state reservoirs to 85% of their capacity.
Over the past two years, scared off by the anticipated costs of storing water there, Valley agricultural irrigation districts have steadily reduced their ownership shares of Sites. The powerful Metropolitan Water District of Southern California … is nearly as big an investor in Sites as all of the Sacramento Valley farm districts combined. Metropolitan agreed Tuesday to contribute another $4.2 million to help plan the project.
The Colorado River has been dammed, diverted, and slowed by reservoirs, strangling the life out of a once-thriving ecosystem. But in the U.S. and Mexico, efforts are underway to revive sections of the river and restore vital riparian habitat for native plants, fish, and wildlife. Last in a series.
Redlands’ wastewater treatment facility needs $40 million in upgrades soon thanks to years of deferred maintenance, officials say. But it could be worse – building a new facility would cost $100 million. The original plant was built in the 1960s, and the last major changes were made in 2004.
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Congressman Kevin McCarthy led his California colleagues in sending letters to the U.S. Bureau of Reclamation requesting a substantial initial water supply allocation to Central Valley Project contractors using authorities under the Water Infrastructure Improvements for the Nation (WIIN) Act. Additionally, he and his colleagues from California also sent a letter to the California Department of Water Resources calling for an increase to the existing water supply allocation to State Water Project contractors given current hydrological conditions.
Lawyers representing the state Department of Water Resources will make their case Friday for striking portions of lawsuits over the spillway crisis filed by the city of Oroville, several farms, businesses and other plaintiffs. The state is arguing that certain “inflammatory and irrelevant” allegations should be removed from the lawsuits, including allegations about racist actions, sexual harassment and petty theft by DWR employees and conspiracy to cover up or destroy documents.
The wet weather broke a daily rainfall record in Sacramento, with 1.6 inches of rain recorded at the Sacramento Executive Airport over 24 hours. But the state’s network of flood-control dams and levees appeared to handle the deluge without major problems. The National Weather Service issued a flood warning Wednesday morning for the Sacramento Valley, and it was expected to remain in place until 6 p.m. Thursday as heavy and moderate rainfall was forecast to continue through Thursday.