Tag Archive for: environment

Coldest Ocean Water Temperature in Decades Recorded Off San Diego County

/in , , /by /The San Diego Union-Tribuneby Gary Robbins

The ocean temperature off Del Mar fell to 52.25 degrees this week, the lowest reading in San Diego County waters since UC San Diego began using a buoy system in the 1970s to monitor large areas of the U.S. coastline.

UCSD’s Scripps Institution of Oceanography said near-record low readings also were recorded this week at many other stations, including off Imperial Beach and Leucadia, where the temperature was 53.5 degrees on Wednesday.

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Worry and Suspicion Reign as Once-Dry Tulare Lake Drowns California Farmland

/in , /by /Los Angeles Timesby Ian James and Susanne Rust

Sixth Avenue used to cut through miles of farmland. Now, the road has disappeared under muddy water, its path marked by sodden telephone poles that protrude from the swelling lake. Water laps just below the windows of a lone farmhouse that sits alongside the submerged route.

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FRS II- Mission Trails- Flow Control Facility

Mission Trails Water Project Completed; Park Trails Reopened

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One of the San Diego County Water Authority’s large-scale capital improvement projects – the Mission Trails Flow Regulatory Structure II and Flow Control Facility (FRS II) – is now completed. The project upgraded the Water Authority’s untreated water supply system by improving the delivery of water to treatment plants serving the central and southern areas of San Diego County.

The FRS II project, which began construction in spring 2020, includes a new 5-million-gallon underground covered reservoir, a flow control facility and pipeline interconnections. The reservoir is covered with soil and vegetation, except for several access hatches and vents that allow for air movement inside the reservoir. FRS II is the Water Authority’s second underground water tank located in Mission Trails Regional Park – the other one, located just west of the new one, is a treated water tank. The two tanks work to efficiently move water through the region, ultimately to customer’s homes and businesses.

“The Water Authority thanks the community for their patience while crews work to successfully build this important water delivery project,” said Michael Heu, the Water Authority’s construction manager for the project. “With the project completed, we are pleased to reopen the park trails which were previously impacted due to construction activity. The public’s safety was a top priority during this work.”

During construction, the Water Authority worked in partnership with key stakeholders, community partners, and the public to keep them well-informed about project status and park trail closures. Key construction highlights include:

  • Approximately 150,000 cubic yards of dirt excavated, with only 20,000 cubic yards exported
  • More than 100 concrete pours deposited 6,000 cubic yards of reinforced concrete
  • 100 columns inside the FRS II support the roof

The FRS II further enhances the Water Authority’s regional water delivery system – a system capable of delivering 900 million gallons of water each day to its 24 member agencies. The new Flow Control Facility delivers from 1 to 140 cubic feet per second of water to member agencies downstream of Mission Trails Regional Park.

Commitment to the Environment

While the Mission Trails Regional Park is known for its 8,000 acres of open space that draw hikers and outdoor enthusiasts, major sections of the Water Authority’s regional water delivery system run underground in the western portion of the park. When construction is required for pipeline maintenance or upgrading water facilities, the Water Authority makes minimizing the impact on the environment a top priority and the construction of the FRS II was no different.

Under the 2006 Good Neighbor agreement with the Mission Trails Regional Park Citizen’s Advisory Committee, the Water Authority is committed to rehabilitating any native habitats and open spaces in the park that are disturbed during construction to their natural state.

Since construction of the FRS II required some removal of native plants, the Water Authority pledged to plant and restore native vegetation of about 17 acres in the park.

Efforts for Revegetation and Hydroseeding

A critical part of successfully restoring the plant life began with mapping the plant habitats and soil types in the construction areas, then harvesting seeds from the native plants.

Before construction began in 2020, approximately 225 pounds of live seed were gathered from within the park and taken to a dedicated nursery. From these seeds, more than 22,000 native plants were grown and are currently being planted over a 17-acre area.

“The seeds harvested from the park prior to construction were twice as fertile than expected, which led to great success in growth,” said Summer Adelberg, Water Authority Principal Water Resource Specialist, who leads the revegetation efforts for the project. “We are pleased with the large number of plants already established throughout the project.”

Monitoring and Maintenance of Restored Areas

While water has already begun flowing through the underground storage tank structure, the restoration work and regrowth in the construction areas is far from over.

Once the planting is complete, each restored site will undergo a 120-day plant establishment period where the areas will be watered, weeded and maintained. That will be followed by a five-year maintenance and monitoring period to ensure the successful growth of the new plants.

In a few years, when revegetation has succeeded, you could be standing on top of nearly five million gallons of water and the only evidence of the massive underground tank will be small service hatches surrounded by native plants.

Opinion: Another Step Toward Agreement on California’s Water

/in , , /by /CalMattersby Dan Walters

For at least a decade, off and on, state water managers and local water agencies have pursued the holy grail of a master agreement to improve the environmental health of the Sacramento-San Joaquin Delta by increasing its water flows.

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Environmental Groups Push for Increased River Flow in Wake of Delta Algal Bloom

/in , , /by /ABC7 by Tim Didion

The destructive algal bloom that struck San Francisco Bay this summer has researchers looking at both causes and solutions. But now, several environmental groups are demanding action on a similar challenge miles upstream from the Bay. They’re focused on a toxic bloom that’s become almost a yearly occurrence in and around the Delta.

 

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A California City’s Water Supply is Expected to Run Out in Two Months

/in , , /by /Washington Postby Joshua Partlow

The residents of this sun-scorched city feel California’s endless drought when the dust lifts off the brown hills and flings grit into their living rooms. They see it when they drive past almond trees being ripped from the ground for lack of water and the new blinking sign at the corner of Elm and Cherry warning: “No watering front yard lawns.”

The fire chief noticed it when he tested hydrants in August — a rare occurrence as Coalinga desperately seeks to conserve water — and the first one shot out a foot-long block of compacted dirt. The second one ejected a can of Axe body spray.

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Supreme Court Hears Lively Debate on Protecting Wetlands, Led in Part by Justice Jackson

/in , /by /Los Angeles Timesby David G. Savage Quoted: https://www.latimes.com/politics/story/2022-10-03/supreme-court-hears-lively-debate-protecting-wetlands

The Supreme Court opened its new term on Monday by hearing a property rights appeal that calls for limiting the government’s power to protect millions of acres of wetlands from development.

At issue is whether the Clean Water Act forbids polluting wetlands and marshes that are near — but not strictly part of — waterways.

How California’s Salton Sea Went From Vacation Destination to Toxic Nightmare

/in , /by /Gristby Zoya Teirstein

In the spring of 1905, the Colorado River, bursting with seasonal rain, topped an irrigation canal and flooded the site of a dried lake bed in Southern California. The flooding, which continued for two years before engineers sealed up the busted channel, created an unexpected gem in the middle of the arid California landscape: the Salton Sea. In the decades that followed, vacationers, water skiers, and speed boat enthusiasts flocked to the body of water. The Beach Boys and the Marx Brothers docked their boats at the North Shore Beach and Yacht Club, which opened in 1959. At the time, it seemed like the Salton Sea, and the vibrant communities that had sprung up around it, would be there for centuries to come.

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OCC Climate Summit Presents Range of Climate Change Remedies

/in , /by /Spectrum News1by William D'urso

A climate change panel Wednesday told its small audience about policy changes Orange County has made and where local leadership has fallen short. Scientists, politicians and local first responders gathered at the Orange Coast College planetarium to share ways the county can improve and forthcoming dangers a warmer climate presents.

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Westlands Spearheaded Delta Restoration Project. Now, it Faces Puzzling ‘Greenlash.’

/in , , /by /San Joaquin Valley Sunby Alex Tavlian

If California sees its environmental goals get met, does it really matter who contributed to the success?

Among certain environmental groups, the answer can be boiled down to a single word: “It depends.”

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