Author Archives: jaylund

About jaylund

Professor of Civil and Environmental Engineering Director, Center for Watershed Sciences University of California - Davis

Turbidity and Insights on Flow-Habitat-Fish Abundance Curves in Policy-making

by Jay Lund California’s water policy community continues to be embroiled on how best to manage what remains of California’s native aquatic ecosystems, particularly for the Sacramento-San Joaquin Delta and its tributaries.  One aspect of this controversy is the dedication … Continue reading

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Is it drought yet? Dry October-November 2019

by Jay Lund So far, October and November 2019 has been the driest (or almost the driest) beginning of any recorded water year with almost zero precipitation. (The 2020 water year began October 1, 2019 – so you might have … Continue reading

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Some more water management truisms (Part II)

by Jay Lund Here is part two of a partial collection of truisms on water management.  These ideas seem obviously true, but still offer insights and perspective.  Original sources are mostly unknown (but apocryphal citations are common).  Any that I … Continue reading

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Night of the Living Dead Salmon

by Kelly Neal and Gabe Saron On a cool and misty morning somewhere south of Redding, California, jet boats roar across the tranquil Sacramento River. Armed with tridents, machetes and poleaxes, it seems akin to a scene from an action … Continue reading

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Can we understand it all?

This is my favorite water cartoon.  It depicts how well the public (and elected officials) will ever understand how water systems work. Today, as individuals we understand only a little about the detailed world around us (cell phones, medical technology, … Continue reading

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Some water management truisms, Part I

by Jay Lund Here is a partial collection of truisms on water management.  These are common ideas that seem obviously true (particularly in the western US), but still offer insights and perspective.  The original sources of these are unknown (although … Continue reading

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Management’s eternal relevance

by Jay Lund Just a brief, and slightly pedantic, blog post this week on the importance of liberal education and broad thinking for those want to solve real problems, illustrated with a bit of history. Engineers and physical scientists will … Continue reading

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Providing Flows for Fish

by Peter Moyle A reality in California and the American West is that people are competing with fish for water. We humans are winning the competition.  However, because there are moral, aesthetic, and legal obligations to provide fish with water … Continue reading

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The Good, the Bad, and the Ugly of California’s State-Mandated Urban Water Conservation during Drought

by Amy Talbot Amy Talbot is the Regional Water Efficiency Manger for the Regional Water Authority, which represents 21 water suppliers in the Sacramento region.  She manages an award-winning public outreach and education program.  Additionally, she is a board member … Continue reading

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Who governs California’s drinking water systems?

By Kristin Dobbin and Amanda Fencl A key feature of California’s drinking water system is the large number of individual water systems. There are approximately 3,000 Community Water Systems (CWSs) in the state, meaning systems that serve a residential population … Continue reading

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