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Flood Risk Heightened for California Dam

A California dam could fail during an extreme storm and send water flooding into Mojave Desert communities that are home to about 300,000 people, authorities said Friday.

The U.S. Army Corps of Engineers announced that it has changed its risk characterization of the Mojave River Dam from low to high urgency of action. The Corps says it estimates that only 16,000 people in those communities would be affected by flooding.

The World Is Getting Wetter, Yet Water May Become Less Available for North America and Eurasia

With climate change, plants of the future will consume more water than in the present day, leading to less water available for people living in North America and Eurasia, according to a Dartmouth-led study in Nature Geoscience. The research suggests a drier future despite anticipated precipitation increases for places like the United States and Europe, populous regions already facing water stresses.

Aqueduct Shutdown Expected to Begin Nov. 4

The repair to the San Diego County Water Authority’s Pipeline 4 in Moosa Canyon will require a shutdown of the SDCWA aqueduct which is expected to begin Nov. 4, and the CWA’s actions also included a unanimous CWA board vote Oct. 24 to approve a change order in the CWA’s contract with Fibrwrap Construction Services, Inc.

The change order increases the contract by $140,409 to create a total contract amount of $1,011,751 while also amending the contract to increase the number of carbon fiber layers.

Is Renewable Energy’s Future Dammed?

Just outside Grand Canyon National Park in Arizona, a year-round, mineral-rich spring turns the Little Colorado River a vivid turquoise. This final stretch, about 10 miles from the river’s confluence with its larger relative, is one of the West’s spectacular waterways, with bright water flowing below steep red-rock cliffs. But the view will change dramatically if a Phoenix-based company builds a proposed hydropower project.

Supervisors Taking Another Shot At Paradise-Chico Water Pipe

A study on a pipe to carry water from Paradise to Chico will be back before the Board of Supervisors on Tuesday.

The $144,000 study to see if the project was feasible was first approved on a 4-1 vote by the supervisors on Sept. 10.

Half the cost would be paid out of a $1.1 million Proposition 1 grant the county received to study ways to reduce reliance on groundwater, as required by a recent state law.

San Diego Creates State’s First Water, Sewer ‘Capacity Bank’

San Diego will create California’s first “capacity bank” for water and sewer, allowing breweries and biotech firms to cheaply buy excess water and sewer capacity from former factories.

The City Council unanimously approved the capacity bank this week, calling it an innovative idea that will create jobs and help the city avoid expensive expansions of its sewer and water infrastructure.