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DWR Wants to Stop Oroville Spillway Flow, Doesn’t Know When It Can

The Department of Water Resources plans to remove at least some of the debris at the bottom of the Oroville Dam spillway and study the structure, but just aren’t sure when they’ll have a chance to do that. The workers can’t just move into the Diversion Pool and pull out the concrete, mud and other debris that went into the water after the spillway broke Feb. 7 because water is still flowing at around 60,000 cubic feet per second and they’ll need heavy equipment to get the work done.

Amid Storms and Fears About Dam, Oroville Residents Are Unsure Who Failed Them — If Anyone

Larry Bowen ducked beneath the large white portico to escape the freshly falling rain, the first droplets of a thick storm that would pour down over Northern California later that night. He and his wife, Robin, came to this hillside outpost to look out at the Oroville Dam, like hundreds of others in recent days who were suddenly all too aware of infrastructure, spillways and reservoir levels.

Appeals Court Upholds Water Release Intended to Help Salmon

A federal appeals court has upheld a decision by federal officials to release water from a Northern California dam to prevent a possible salmon die-off. The 9th U.S. Circuit Court of Appeals said Tuesday the U.S. Bureau of Reclamation had the authority to release the additional water from Lewiston Dam in 2013 to help migrating winter-run salmon in the lower Klamath River. The unanimous ruling by a three-judge panel of the court rejected a lawsuit by Westlands Water District, a major water supplier to Central Valley farmers.

How Food Companies Can Help Drive Agricultural Water Conservation

Last week I was a guest on an “inspection” trip of the Colorado River Aqueduct, the engineering marvel that delivers up to 1 billion gallons (3.8 billion liters) of water daily to Southern California from the Colorado River hundreds of miles to the east. Organized by the Metropolitan Water District (MWD) of Southern California, these inspections are a relic of an old piece of administrative code. Today they’ve become a well-choreographed public relations effort – right down to the framed MWD mission statement on the walls of the bedrooms provided to guests.

Water Districts Recharging Aquifer

With the reservoir and all water district canals brimming, there is a great effort to move water into underground aquifer recharge ponds, said David Nixon, general manager of the Arvin-Edison Water Storage District in Kern County. “Absolutely, we tried to get every acre foot of water in this district we possibly can,” he said. “With that water at this time of year, before it’s needed by agriculture, it’s all about water storage and rebuilding that underground aquifer. “We have about 1500 acres of recharge ponds that we can use to refill the underground aquifer,” Nixon said.

Anderson Reservoir Continues To Spill, Nearby Residents Warned About Flooding Risk

For the second day in a row, a torrent of water on Sunday flowed over the Anderson Reservoir spillway, marking a phenomenon that hadn’t happened for 11 years until this weekend. The Morgan Hill reservoir hovered around 101.4 percent of its maximum capacity as of Sunday afternoon, but that number could rise as an impending storm barrels toward the Bay Area.

 

Lake Oroville Reaches Goal; 11 Sickened At Shelter

California Department of Water Resources officials reached their goal of getting water levels in Lake Oroville 50 feet below the dam crest Monday.The reservoir reached 50 feet below capacity as of 6 a.m. Monday. The 850-foot mark is important because it gives ground crews more flexibility for water flowing into the lake during this week’s storms, DWR officials said. “It allows us to lower our outflows from the dam, so we can start working on the diversion pool,” said Chris Orrock, a DWR spokesman.

California Dam Crisis Could Have Been Averted

By now we have all seen the spectacular images of volumes of water crashing down the Oroville Dam spillway in California and blasting upward into the air as they hit an enormous crater in the spillway floor, flooding down the adjacent hillside, threatening people in towns below. Those images reveal a big mistake: failure to update infrastructure to defend against climate change.

BLOG: Learning from Oroville: Water Board Proposes Climate Change Resolution

Earlier this week, while areas downstream of Oroville Dam were still under an evacuation order, California’s State Water Resources Control Board released a draft resolution for a comprehensive response to climate change. It resolves that the agency will embed climate science into all its existing work, both to mitigate greenhouse gas emissions and to build resilience to the impacts of climate change. In doing so, the state water board demonstrates how public agencies can respond more proactively to the challenges that global warming is bringing our way.

California Is Getting Too Much Of A Good Thing

In a region that has seen so much drought over the last decade, the prospect of moisture would be a welcome one.  But right now, not so much.  The state of California has seen more moisture in the last few weeks than it typically gets in a year and this could actually turn into their wettest “wet season” on record.  Several more inches of rain looks likely for northern and central parts of the state with the highest elevations getting several more feet of snow.