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What Climate Models Get Wrong About Future Water Availability

/in , /by /Earth and Space Science News (Washington D.C.)by Emily Underwood

One of the most challenging questions about climate change is how Earth’s warming atmosphere will affect water availability across the globe. Climate models present a range of possible scenarios—some more extreme than others—which can make it difficult for cities, states, and countries to plan ahead. Now, however, in a new study, Padrón et al. suggest a way to reduce uncertainty using precipitation patterns from the past. A rule of thumb for global warming’s impact on Earth’s water availability that was sometimes proposed in the past was that dry regions will get drier and wet regions will get wetter, also known as the DDWW hypothesis. But mounting evidence suggests the reality is more complicated.

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Escondido Moves Forward With New Recycled Water Plant Plans

/in , , /by /San Diego Union-Tribuneby J. Harry Jones

The Escondido City Council has decided to move forward with building a recycled water treatment plant off Washington Avenue, in the western part of the city in an industrial area where, unlike two other locations, there aren’t any residents nearby to complain. The council on Wednesday unanimously approved spending $3 million for initial engineering, design and pre-construction costs. Director of Utilities Chris McKinney said the expenditure signals the council’s acceptance of the location at 901 W. Washington Avenue near Interstate 15. The plant, which now has an estimated cost of $47 million, is needed to further treat already treated recycled water in order to desalinate it to a point where it can be used to irrigate avocado groves and other crops in the eastern and northern parts of the city.

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Zapping Lead Pipes With Electricity Could Make Them Safer For Drinking Water

/in , /by /Scientific Americanby Angus Chen

The toxic effects of lead—developmental delays, organ damage, even death—are well-known. But millions of Americans still rely on lead pipes to deliver drinking water. In an attempt to make them safer, researchers at the University of California, Berkeley, are working on a new technology that uses electrical current to rapidly build a protective layer on the insides of the pipes. In early tests they reduced the amount of the toxic metal entering water, but other scientists are skeptical of the method’s potential as a long-term solution.

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Water Authority Seeks Statewide Solution To Drinking Water Woes

/in , , /by /Water News Network

The San Diego County Water Authority’s Board of Directors on March 28 threw its support behind a coordinated statewide approach to ensure that all communities in California have daily access to safe, reliable drinking water. The California State Water Resources Control Board has identified 329 water systems statewide that serve contaminated drinking water or cannot provide reliable water service due to unsound infrastructure or lack of resources. Most of the systems are in rural areas and serve fewer than 10,000 people.

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Plan Unveiled To Cut Borrego Springs Water Consumption By 75 Percent

/in , , /by /The San Diego Union Tribune by Harry Jones

For years, the desert town of Borrego Springs has been living on borrowed time, drawing more water from the ground than its rains replace. But a reckoning is near. In March, a nearly 1,000-page draft report was released outlining how the community must and will reduce its water use by a staggering 74.6 percent between now and 2040. Borrego Springs is completely dependent on groundwater for survival because there is no economically feasible way to bring water via aqueduct or pipes to the remote area in the center of Anza-Borrego Desert State Park, the largest state park in California.

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Olivenhain Tries Desalinating Groundwater

/in , , /by /The San Diego Union-Tribuneby Phil Diehl

Construction starts this month on a $1.5 million test well to show whether desalinated groundwater could supplement the drinking water supply for 86,000 customers of the Olivenhain Municipal Water District. The district serves parts of Encinitas, Carlsbad, San Diego, San Marcos, Solana Beach and neighboring communities, and relies almost entirely on water imported from the Colorado River and Northern California. Like agencies throughout Southern California, it’s looking for ways to diversify its water supply.

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California’s Emergency Alert System Has Been A Disaster. A Statewide Fix Is Planned

/in , /by /Los Angeles Timesby Joseph Serna

In Mendocino County, emergency staffers waited for a supervisor to show up before they warned residents of a growing fire siege in 2017. In Santa Barbara County, officials hesitated to issue blanket evacuation orders before mudslides ripped through Montecito in 2018 because they worried they might trigger a panic. And in Butte County in November, whole neighborhoods in Paradise were never told to evacuate as the Camp fire swept toward town. In each case, local emergency preparedness agencies failed to adequately warn communities that death was approaching. Experts say the failures point to an approach to emergency management — administered by individual counties — that has proved outdated in an era of massive, fast-moving wildfires and other extreme weather events.

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River Levels Rise As More Water Released From Keswick And Oroville Dams

/in , /by /ABC7 (Los Angeles)by Kelli Saam

Water levels will rise on the Sacramento and Feather Rivers as federal and state authorities release more water from Keswick and Oroville Dams. Thursday morning by 10 a.m., the Bureau of Reclamation will increase releases below Keswick Dam from 20,000 cubic feet per second to 30,000 cfs. Sacramento River levels are expected to increase downstream of Keswick Dam. The increased releases are necessary to meet flood space regulatory requirements within Shasta Reservoir.

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A California Tax To Clean Up Toxic Drinking Water Has Lawmakers Jumpy

/in , , /by /Los Angeles Timesby George Skelton

The ghost of Josh Newman haunts the state Capitol, sending shivers through certain politicians’ spines at the mere mention of the scary word “tax.” The former lawmaker’s fate will make it difficult for the Legislature — even with supermajority Democratic control — to pass one of Gavin Newsom’s top priorities: a so-called water tax. The governor says the tiny tax is needed to raise enough money to clean up toxic drinking water throughout California, particularly in low-income farmworker communities of the San Joaquin Valley.

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Water Wise: Fair Shows Ways To Use Less Water And Help Native Plants

/in , /by /Hi-Desert Star (Yucca Valley, Calif.)by Jené Estrada

Water-wise planting, pool safety and groundwater pollution — the Joshua Basin Water District’s annual Water Education Day focused on a crucial aspect of desert living: the Basin’s relationship with water. Public outreach consultant Kathleen Radnich helped greet locals as they made their way into the biggest Water Education Day yet. “It’s been a very good turnout,” she said. “One of our big draws is our native plant sale and that has over 460 plants this year.” The water district’s native plants are grown with the help of Joshua Tree National Park. While harvesting is illegal within the park borders, harvested plants from outside of the park can be nurtured within the park’s nursery and distributed.

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