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OPINION: How Silicon Valley Provides The Blueprint For Cleaning Up Our Drinking Water

In 2016 the Colorado health department announced the presence of cancer-causing chemicals in drinking water in Fountain, Colo., just outside Colorado Springs. Tests by the Environmental Protection Agency (EPA) discovered that nearby military bases had been leaching toxic chemicals, including substances known as PFASs, into drinking water for decades, potentially contributing to higher-than-normal rates of cancer. The Department of Defense has since admitted their responsibility for at least 55 drinking-water site contaminations worldwide, and the EPA has announced new plans to set drinking-water limits for PFASs by the end of the year.

Snowmelt Causes Seismic Swarm Near California’s Long Valley Caldera

The unusual event prompted U.S. Geological Survey researcher Emily Montgomery-Brown and her colleagues to look back through 33 years of seismic and water records for the region. They found that rates of shallow seismicity were about 37 times higher during very wet periods versus dry periods. Although scientists have linked earthquakes to heavy rainfall or heavy runoff before this, the evidence connecting the two has been relatively weak or ambiguous, says Montgomery-Brown. In the Long Valley Caldera case, she says, “we’re seeing phenomenal correlation between the seismicity and the stream discharge, and we are seeing about 37 times the number of earthquakes during the wet season as during the dry season.”

Salton Sea Pelican Population Declining At Startling Rate

A new report paints a grim future for birds that rely on the Salton Sea habitat. Audubon California-released report uses bird-monitoring data from several different sources to show just how the destruction of the Salton Sea ecological habitat has decimated the populations of both pelicans and cormorants endemic to the area. As the Salton Sea recedes, the body of water’s salinity increases, which kills off its tilapia population. Without tilapia, the birds starve.

A Look Back At The Specifics Of A Wild, Wet And Snowy Winter In California And The Southwest

Following a pretty dry 2017-18 season, the storms came back with a frenzy this season across the Southwest, helping to propel many places to above-average precipitation. It was a fast transition in California in November from the destructive Camp and Woolsey fires in the first half of the month to storms, flooding and mudslides by the end of the month. December had extended dry periods, and most places ended up with below-average precipitation for the month. As a stormier pattern led to frequent storms and atmospheric river events as 2019 started, the heavy precipitation events caused flooding, mudslides and heavy snow.

E.P.A. Proposes Weaker Standards On Chemicals Contaminating Drinking Water

After pressure from the Defense Department, the Environmental Protection Agency significantly weakened a proposed standard for cleaning up groundwater pollution caused by toxic chemicals that contaminate drinking water consumed by millions of Americans and that have been commonly used at military bases. Standards released by the agency on Thursday eliminated entirely a section that would have addressed how it would respond to what it has described as “immediate threats posed by hazardous waste sites.” Those short-term responses, known as removal actions, can include excavating contaminated soil or building a security fence around a toxic area.

Cal Am Desal Plant Gets Narrow Planning Commission OK

Citing long-running efforts to secure a new Monterey Peninsula water supply and the state-imposed deadline for reducing unauthorized water usage, the county Planning Commission approved California American Water’s desalination plant north of Marina on Wednesday. By a 6-4 vote, the commission backed a use permit for the proposed 6.4 million gallon per day desal plant. The plant is designed to provide about 40 percent of the Peninsula’s planned new water supply to offset the state’s Carmel River pumping cutback order set to take full effect at the end of 2021, as well as reduce pumping from the Seaside basin. The commission’s approval can be appealed to the Board of Supervisors.

4S Ranch Water Reclamation Facility Wins State Award

Olivenhain Municipal Water District’s 4S Ranch Water Reclamation Facility has won a statewide award. It was named the California Water Environment Association’s 2019 “Small Plant of the Year” at the association’s annual conference on April 12. “OMWD is gratified to have CWEA confirm what we’ve known for years, our 4S Ranch Water Reclamation Facility is second to none,” said Christy Guerin, the district’s director. “The facility produces over a million gallons of recycled water each day through advance treatment processes. Almost every drop of wastewater is reclaimed and converted into a drought-resilient, sustainable water supply.”

Former Utilities Department Leader Says City Diverted Ratepayer Funds To Unrelated Services

A former Public Utilities Department leader is accusing the city of San Diego of illegally diverting $1 million in water and wastewater funds to other city services and firing her for refusing to conceal the activity, according to a claim she filed with the city on Monday. Susan LaNier, a former deputy director and internal auditor for the utilities department, was one of five utility leaders the city fired in February, following public outcry over billing errors and accusations of mismanagement within the department.

Disturbing Levels Of Carbon Dioxide Likely To Increase Ocean Acidity Fast, Scientists Say

Unusually high concentrations of carbon dioxide have been blowing out to sea from Bay Area cities and agricultural areas, raising concerns that the previously unknown infusions could increase ocean acidity faster than climate change experts have predicted, Monterey Bay scientists said this week. The greenhouse gases flowing into the sea could add as much as 25 million tons of carbon dioxide into the ocean every year, roughly 1 percent of the total annual amount from all sources that permeates the sea water, according to calculations by the Monterey Bay Aquarium Research Institute.

How An ‘Unripe Snowpack’ Will Impact Lake Tahoe This Summer

For the third year in a row, Lake Tahoe is expected to fill. This is noteworthy for the sixth-largest lake in the United States that flirted with record-low levels amid a five-year drought that ended in 2017. Even more good news for the West’s water supply: Tahoe’s water level is likely to reach its peak late in the season as a robust snow pack slowly melts through summer, feeding the reservoir and the Truckee River continuously for months to come