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EPA announces new Superfund cleanup projects in California as part of President Biden s Investing in America agenda
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and is republished here as part of a collaboration, Tapped Out: Power, justice and water in the West, in which eight Institute for Nonprofit News newsrooms California Health Report and High Country News; SJV Water and the Center for Collaborative Investigative Journalism; Circle of Blue; Columbia Insight; Ensia; and New Mexico In Depth spent more than three months reporting on water issues in the Western U.S. The result documents serious concerns including contamination, excessive groundwater pumping and environmental inequity. It was made possible by a grant from The Water Desk, with support from Ensia and INN’s Amplify News Project.
Algae blooms in Clear Lake are a public health risk and increase water treatment costs. Image credit: Brett Walton/Circle of Blue May 4, 2021
On a good day, usually in late winter and early spring, the magnificent waters of Clear Lake seem to live up to their name. Under the shadow of the volcano Mount Konocti, the oldest lake in North America and second largest in California sparkles in an array of blues while fishing boats ply the shallow nearshore, their anglers hoping to hook a trophy bass.
From his office two miles inland, Frank Costner knows that the lake’s waters also shelter a treacherous occupant – potentially toxic blooms of cyanobacteria. As general manager of Konocti County Water District, Costner is responsible for supplying drinking water from Clear Lake to 4,500 people who live in this region a two-hour drive north of San Francisco.
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Researchers from the University of California, Davis, are studying Clear Lake in order to understand how nutrients and water circulate within the lake system. From their research vessel the R/V Ted Frantz, the scientists take water quality samples at seven sites every six to eight weeks. Their results will inform state and local responses to the harmful algal blooms.
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The Big Valley Band of Pomo Indians has a sliver of land on the flat, fertile western shores of Clear Lake. The tribe’s Environmental Protection Agency began a cyanobacteria monitoring program in 2014 after an exceptionally bad year for toxic blooms on the lake. The monitoring program has influenced a number of additional state studies as well as drinking water testing requirements for utilities that use the lake as a supply source.
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