California’s perpetual, uber-complex conflict over water progresses much like the tectonic plates that grind against one another beneath its surface.
Periodically, as subterranean friction increases, there’s a sudden movement that we call an earthquake — sometimes imperceptibly small, but occasionally large enough to disrupt and endanger life at the surface.
As climate change continues to sap the Colorado River’s water, some users face serious legal risks to their supplies, according to a new analysis by researchers in Colorado and New Mexico.
Declining flows could force Southwest water managers to confront long-standing legal uncertainties, and threaten the water security of Upper Basin states of Colorado, Wyoming, Utah and New Mexico.
The Fallbrook Public Utility District will use Jennifer Spaletta as FPUD’s special counsel for matters involving Santa Margarita River water rights.
A 5-0 FPUD board vote, Oct. 28, approved the legal services agreement with Spaletta Law. Spaletta replaces Martha Lennihan, who retired.
“We just retained another water rights attorney with a lot of experience and knowledge in the area,” FPUD general manager Jack Bebee said.
Pipeline 4 – one of the San Diego region’s major water pipelines – is back in regular service after a leak was repaired, a testament to the San Diego County Water Authority’s proactive asset management program.
The pipeline resumed normal operations November 10 after nearly two months of modified operation. The leaky section was near Camino Del Rey in Bonsall, in an area with no adjacent homes or businesses.
“The shutdown and repair work went smoothly, and we could not have done it without the support and coordination from Water Authority staff, our contractors and member agencies, particularly, Fallbrook PUD, Rainbow MWD, Valley Center MWD, and Vallecitos Water District,” said Neena Kuzmich, Water Authority engineering manager.
Water Authority crews detected a leak in the 90-inch diameter Pipeline 4 in the Moosa Canyon area in August.
Crews installed bulkheads in the pipeline to isolate the leak area for repairs. The bulkheads allowed the pipeline to continue treated water deliveries throughout the county in a modified fashion and restored full service to retail water agencies.
The Water Authority installed a carbon fiber liner to give the pipeline several more years of service, while a longer-term solution is developed and implemented.
Once the repairs were completed, a second shutdown was needed to remove the bulkheads and return the pipeline to full, normal operations.
Pipeline 4 is one of five major pipelines operated by the Water Authority.
Crews installed a carbon fiber liner to repair a leak in Pipeline 4. The liner will give the pipeline several more years of service while a longer-term solution is developed. Photo: Water Authority
By relining the pipes and conducting timely repairs with the latest technology, the Water Authority has avoided major pipeline failures for more than decade.
Extending the life and reliability of major pipelines is one facet of the agency’s proactive asset management program. Real-time monitoring and other pipeline assessment tools help the Water Authority avoid pipeline failures by identifying potential problems in advance.
As part of its proactive approach, the Water Authority continually assesses and rehabilitates pipelines serving the San Diego region. The agency operates 310 miles of large-diameter pipelines, along with 1,600 aqueduct-related structures, and approximately 100 metering/flow-control facilities.
Approximately 82 miles of the pipelines are pre-stressed concrete cylinder pipes. These types of pipes were installed between the early 1960s and late 1980s and have experienced premature failures and shown areas of degradation.
In the past few years, the Water Authority has continued to extend the service life of pipelines with relining projects, including Pipeline 3 between Lake Murray and Sweetwater Reservoir, and Pipeline 5, in the Fallbrook area.
It’s been a year since two devastating wildfires on opposite ends of California underscored the harsh new realities facing water districts and cities serving communities in or adjacent to the state’s fire-prone wildlands. Fire doesn’t just level homes, it can contaminate water, scorch watersheds, damage delivery systems and upend an agency’s finances.
Last winter was a bountiful one in terms of water supply for California, but it’s still too early to tell whether 2020 will be as generous.
The 2018-19 winter was one for the record books, with above-average precipitation. Snow continued to fall in late-spring, with several inches or more in the Sierra Nevada and the Southern California mountains.
Ski seasons were extended into May and June, delighting skiers and resort operators.
The snowfall, and a boost from late-season storms, increased the northern Sierra snowpack in May 2019, which was “atypical,” according to Alexi Schnell, water resources specialist with the San Diego County Water Authority.
The statewide Sierra Nevada snowpack was 164% of normal, with the northern Sierra at 172% of normal on May 23, 2019.
Most major California reservoirs are above their historical averages as of November 8, 2019. (Graphic: California DWR)
The 2019 water year (October 1 – September 30) pushed snowpack levels well-above average and swelled major reservoirs to above-average. There were more than 30 atmospheric rivers, with many making landfall in Northern California. The state’s snowpack on April 1 was 175% of average.
The California Department of Water Resources said that makes a great start to 2020.
“We start the new water year in a good place,” said Karla Nemeth, director of the DWR. “However, we all know too well that California’s weather and precipitation are highly variable. What we have today could be gone tomorrow.”
Water Year 2020 begins with robust reservoir storage in California, boosting water supply. @sdcwa Water Resources Specialist Alexi Schnell says last season was “atypical.” https://t.co/oCsKHYN4yf #cawater #reservoir #WaterSupply #cawx #climate pic.twitter.com/31XzMskS9r
— San Diego County Water Authority (@sdcwa) November 8, 2019
While the biggest gains in precipitation over the past year were in Northern California, the San Diego region also benefited. Water Year 2019 ended with the region at 125% of average rainfall at Lindbergh Field. The rainfall helped increase supplies in regional reservoirs.
Schnell cautioned that the climatological cycle in California can bring several consecutive years of drought, like the 2015-17 period, which prompted mandatory water-use reductions statewide.
NOAA reported on November 6 that California experienced above-average to much-above-average temperatures from January through October 2019. The average U.S. temperature during that same period was 55.5°F, (0.5 of a degree above 20th-century average) “ranking in the warmest third of the record,” according to NOAA.
NOAA reported that California has had above-to much-above-average temperatures from January to October 2019. (Graphic: NOAA)
Scripps Institution of Oceanography’s Center for Western Weather and Water Extremes, or CW3E, just released an analysis that calculated the odds of water year 2020 reaching 100% of water year normal precipitation totals. The odds range from 20 to 40% of the Southwest reaching 100% of water year normal precipitation.
Odds of reaching normal precipitation for Water Year 2020. (Graphic: CW3E, Scripps, UC San Diego)
The three-month seasonal precipitation outlook for November-December-January by the National Weather Service Climate Prediction Center shows below-normal to normal precipitation in Central to Northern California and equal chances of below, near- or above-normal in southern California and much of the Southwest.
The November-December-January precipitation outlook from the National Weather Service. (Graphic: NWS/NOAA)
“There will always be fluctuations based on weather and other factors, but the San Diego region continues to embrace water-use efficiency,” said Schnell. “The Water Authority and its 24 member agencies continue to increase San Diego County’s water supply reliability through supply diversification to provide a safe, reliable water supply to the region.”
At present, solar and wind energy are highly promoted as renewable energy technologies — clean technologies in terms of their carbon footprint. However, the most prominent renewable energy source for generating electricity is hydropower. The history of hydropower for generating electricity in the U.S. goes back to late 19th century.
While projected cost increases to the proposed Doheny desalination plant drew concern from two South Coast Water District directors at a meeting Wednesday, the majority of the board took the updated analysis in stride and the district continues pursuit of the project.
The bottom line for the average residential customer is that the expected monthly bill increase is now $10 — a 9% hike — rather than the $5 to $7 estimated in a 2017 report. Three members of the five-member board appeared comfortable with the latest estimates.
ST. HELENA, Calif. — Every wine region has had to deal with some manifestation of climate change, but few have had to deal with as many devastating consequences as Napa Valley.
Water is scarce and dirty for many in Fresno County’s small West Park community.
They’re not alone. It’s a common and persistent challenge for residents throughout California who rely on water wells.
The Water News Network is San Diego County’s source for water news and information.
