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Featured March 2021

Opinion: Bayshore Breathing Space for All

I live just a couple miles from Berkeley Aquatic Park, but it took a shelter-in-place order to get me to go back there after a 20-year hiatus. I had visited the park a couple years after I moved to the Bay Area and found it deserted and a bit gloomy. This time, it was vibrant and full of life, from the bright yellow gumplants blooming along the shoreline to the great blue heron feeding in the shallows and shiny-black cormorants...
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Fire Sparks Sewer Boon in Larkfield

Early on the morning of October 9, 2017, a firestorm roared with unforgiving speed across a swath of northeastern Santa Rosa. The unincorporated community of Larkfield lay directly in its path. One-hundred and sixty homes there burned to the ground. Three and a half years later, Larkfield is still being rebuilt—in some ways better than ever, thanks in part to an ambitious and innovative program by the Sonoma County Water Agency to bring sewer service to the modest, tight-knit community...
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Delta Study Predicts Stronger Floods and Less Water Supply

Though most don’t realize it, practically all Californians are linked to the Bay-Delta region via its triple function as a source of drinking water for some 27 million Californians, a critical water provider for the Golden State’s hefty agricultural industry, and a rich and unique ecosystem. But for those who live in the legal Delta zone – some 630,000 people – the braided weave of the Sacramento and San Joaquin Rivers and their maze of associated wetlands and levees provides...
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York Creek Uncorked

York Creek free flowing at last. Video: Daniel McGlynn. Over the summer, while most of the Bay Area was figuring out how to navigate the COVID-induced shelter-in-place orders, 1,933 heavy truckloads laden with 22,000 yards of material wound their way away from Napa County’s York Creek, and were dumped into two nearby landfills. Extracting these spoils was the last step in the York Creek Dam removal project, the culmination of decades of effort by the city of St. Helena to...
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Kayaking to Hawaii

After a French-American resident of Larkspur helped row a small boat from Monterey to Hawaii in 2016, he vowed he’d never undertake such a journey again. But Cyril Derreumaux spoke too soon. “My imagination took off, and I started dreaming about doing the same trip again in a kayak,” he says. Now, after several years of planning, Derreumaux is getting ready to embark. He plans to leave Monterey Bay in a custom-made kayak with no companions in late May and,...
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Invasive Mussels Hide in Aquarium Moss Balls

A few weeks ago, someone working in a big-box pet store in the Seattle area informed the U.S. Geological Survey that they had seen suspicious mollusks in ornamental aquarium plants that were being offered for sale. Federal scientists confirmed the presence of zebra mussels tucked away in a clump of Aegagropila linnaei, a green alga marketed as moss balls or marimo balls, and issued a warning through the Nonindigenous Aquatic Species Alert System on March 2. The national Aquatic Nuisance...
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Refreshing the Estuary Blueprint

The San Francisco Estuary Partnership’s next update to its 2016 Comprehensive Conservation and Management Plan for the Estuary—or Estuary Blueprint—will bring a new focus on equity and environmental justice to ongoing efforts to restore and protect the Bay and Delta. “We really want to do more to engage communities of color and indigenous communities as partners in our work,” says Partnership Director Caitlin Sweeney. “So we are looking at all our actions and initiatives through the lens of environmental justice...
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Dutch Slough Laboratory

For a hawk’s-eye view of one of the Estuary’s most ambitious restoration efforts, visit the Dutch Slough Tidal Marsh Habitat Restoration Project’s YouTube channel. Drone-shot footage shows what the Department of Water Resources has been doing on 1,200 acres of former wetland, converted to pasture and subsided up to 15 feet, in the West Delta between Big Break and Jersey Island. After moving millions of cubic yards of soil to elevate the marsh plain, a team of engineers, scientists, and...
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Scientists Nail Climate Links to Extreme Events

While a supermajority of Americans finally believe we are warming the world, a 2020 Yale Climate Opinion survey shows that most people still aren’t very worried about it. “Climate change is abstract to them,” says UCLA climate scientist Daniel Swain. “They don’t connect it to their personal lives.” But Californians do. Reeling from a decade of record-shattering drought, heat waves, and wildfires, people in the Golden State overwhelmingly tell Public Policy Institute of California pollsters that the effects of global...
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Flow Rules Stalled As Tunnel Advances

As California stares down the barrel of yet another dry year, alarm bells are already ringing over conditions in the Delta. Environmental groups, fishermen, tribes, and a host of others are calling on the State Water Resources Control Board to complete and implement a long-delayed update to the Water Quality Control Plan for the Bay and Delta (Bay-Delta Plan), to protect the imperiled ecosystem. At the same time, plans for a structure with the potential to divert more water than...
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Fixing a Dysfunctional Marsh on Sonoma Creek

Restoration projects, like species, evolve. The Sonoma Creek Enhancement Project, originally about mosquito control, has shown itself to be a boon to special-status tidal marsh wildlife as well. More than a decade of adaptive management actions made that happen.  The existing marsh, formed rapidly beginning in the 1960s by deposited sediment, lacked the dendritic channels of a mature marsh. High tides brought in water that pooled in a central basin and didn’t drain out, providing breeding habitat for mosquitos. The...
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Nourishing Encinal Beach

Before the East Bay Regional Park District completed the Encinal Dune Restoration and Shoreline Stabilization Project in December 2020, this tucked-away beach frequented by locals and harbor seal enthusiasts needed some love. The ice plant that dominated the low-flung dune offered little sustenance to fauna; the beach required more sand; the washed-up creosote-treated timber was strewn about like a giant game of pick-up sticks; and the large, rusty barge that buttressed a short section of the San Francisco Bay Trail...
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Beavers Make Good Neighbors

Much like when tech money reshapes an historical neighborhood, a beaver’s move downtown can cause the locals to worry. In Napa, the animals’ sprawling waterfront complexes create worrying pools along the riverbank, while the native cottonwoods are whittled down and threaten landowners’ roofs. It seems destined that two species known for their environmental engineering would struggle to live in unison. However, municipalities like Napa and Martinez in Contra Costa County have learned to live with their beavers, and the upcoming...
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Sub-Standard Snow

At a glance, the recent winter storms and inches of snow in the Sierra seem like a reassuring sign: more snow means more snow melt, which means more water moving through our freshwater systems during dry summer months. But it turns out that there are different types of snow with differing levels of moisture locked up inside — and the latest Sierra snowfall appears to be holding less water than usual. This means the Bay’s streams and estuaries could have...
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Sediment Paparazzi

As the Estuary faces drowning marshes due to rising seas, people want to see action – acres saved, walls built, marsh mice whisked to safety after crawling to the tip of the tallest gumplant. In terms of action, “sediment monitoring” doesn’t come immediately to mind. Monitoring is something you do after all the action is over, isn’t it? And as for “sediment,” well what’s all the fuss over some dirt and mud? In fact, there is quite a fuss. The...
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Bay Oil Spills: Never Again, and Again

Oil spills in San Francisco Bay are frequent news, but for those old enough to remember there is only one Great Oil Spill, the disaster of January 18, 1971. In a predawn darkness thickened by heavy fog, two small Chevron tankers were maneuvering through the strait. At San Francisco’s Pier 45, Coast Guard technicians were just then testing a novel radar system. They watched helplessly as two blips threatened to fuse into one. Frantic calls to the captains failed to...
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About Us

The San Francisco Bay-Delta is named in the federal Clean Water Act as one of 28 “estuaries of national significance." For over 20 years, the San Francisco Estuary Partnership has worked together with local communities and federal and state agencies to improve the health of California’s most urbanized estuary.

San Francisco Estuary Partnership 1515 Clay Street, Suite 1400 Oakland, CA 94612 (510) 622-2304

Association of Bay Area Governments