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From Snowpack to Groundwater: Here’s a Look at Water Supply Conditions Across California
The first week of February brought only modest amounts of rain and snow but despite that, California’s snowpack and many of the state’s largest reservoirs are in good shape.
According to data tracked by California’s Department of Water Resources, the statewide snowpack is at 135% of the average peak. Typically the snowpack peaks in late March to early April.
Water Transfer Facilitates Sweetwater Reservoir Refill
In November 2022 the Sweetwater Authority initiated a controlled transfer of water between the Loveland Reservoir to the Sweetwater Reservoir where water is treated and distributed to Authority customers in National City, Chula Vista and Bonita. The Loveland Reservoir, owned and operated by the water utility, was built in 1945 pooling water from the Sweetwater River. It has been a destination for fishing, birdwatching, and hiking. After a second water transfer in January between the two reservoirs and substantial storms which caused damage to the HUD-funded fishing pier and erosion damage to the trails, Loveland is now closed to the public for all recreational usage for an indefinite period of time.
Sweetwater Authority General Manager Carlos Quintero said, bottom line, with both water transfers there is not enough water to fish. He said Loveland has always been a water supply reservoir.
“Our mission is to provide water to the Sweetwater customers,” he said. “We use both of our reservoirs. They work in conjunction. Sweetwater is in Spring Valley and that is where we have our treatment plant. When conditions are optimal, when we are outside the arroyo toad breeding season, that is when we can transfer water from one reservoir to another. It is a 17-mile trek for every drop of water, and we try to find the optimal conditions to minimize our losses.”
Poseidon Deal Will Finance New Ocean Intake for Desalination Plant
The California Pollution Control Financing Authority plans to price $158 million in revenue bonds next week to pay for modifications to the seawater intake system for a San Diego County desalination plant.
The Claude “Bud” Lewis Carlsbad Desalination Plant was built by private operator Poseidon as a partnership that supplies water to the San Diego County Water Authority.
The plant, developed by Poseidon and operated by IDE Technologies, has produced more than 100 billion gallons of desalinated seawater since it opened in December 2015, providing San Diego County with 10% of its water supply each year, according to the preliminary limited offering memorandum.
Opinion: Drought Doom Paralyzed California. Now, We’re Dumping Water Into the Ocean.
As we entered the fall of 2022 in California, news headlines read of a 1,200-year drought and state agencies warned the current drought from 2020 to 2022 was the driest on record.
In a matter of weeks, stories changed to talk of flooding, mudslides, and record rainfall. The New Year brought one of the wettest months on record in California. This set of evolving headlines is nothing new.
The Rockies Are Having a Snowy Winter, but Not All of That Water Will Make It to the Colorado River
New data show a snowy start to 2023 for the Colorado River basin. Inflows into Lake Powell, the nation’s second largest reservoir, are currently projected to be 117% of average during spring runoff thanks to heavy winter precipitation in the Rocky Mountains.
The beleaguered river is shrinking due to climate change and steady demand. Scientists say this winter’s snow may provide a temporary boost to major reservoirs, but will not provide enough water to fix the Southwest’s supply-demand imbalance.
As Colorado River Shrinks, Water Evaporation Becomes Critical to California’s Future Supplies
Much of the Colorado River’s water is diverted from reservoirs and transported in canals to the farmlands and cities of the desert Southwest. But some of the water also ends up going elsewhere — vanishing into thin air.
Water lost to evaporation has become a central point of contention in the disagreement between California and six other states over how to divide reductions in water use.
San Diego Airport Reused More Than 800,000 Gallons of Stormwater in 2022
The San Diego County Regional Airport Authority captured, treated and reused 812,500 gallons of stormwater last year, according to a report released Wednesday.
That water, which would otherwise naturally have run off into San Diego Bay, was then used to heat and cool buildings at San Diego International Airport.
In Times of Scarcity, California’s Best New Source of Water? Reuse.
As California has struggled with drought, Governor Gavin Newsom’s fundamental solution: find more water by diversifying the state’s public water supply. Because of the proximity of the Pacific Ocean, one of the most frequently mentioned sources is seawater desalination. A few communities are trying it, despite environmental concerns.
But another potential source gets less public attention, even though water providers are showing increasing interest thanks to its early successes: reuse.
