Category Archives: Uncategorized

Drought, Fish, and Water in California

by Peter Moyle With a big collective sigh of relief, Californians rejoiced that we have largely recovered from 2012-2016 drought[1].  Streams are flowing.  Reservoirs are full. Crops are watered. Native fishes are reproducing   But this not a time for complacency; … Continue reading

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Sustaining integrated portfolios for managing water in California

by Jay Lund Summary:  This post reviews some lessons from portfolio water management in California and identifies roles for state government in facilitating development and implementation of effective portfolios.  To better align state regulations and funding with these goals, a … Continue reading

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Flood Mapping in California: The Good, the Bad, and the Ugly

by Kathleen Schaefer and Nicholas Pinter FEMA flood insurance rate maps (FIRMs) are the principle tool for managing the National Flood Insurance Program (NFIP).  They identify properties whose owners may be required to purchase flood insurance and help set flood … Continue reading

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Economic Tradeoffs in Groundwater Management During Drought

by Kathleen Stone and Rob Gailey Domestic well users in some areas were greatly impacted by additional agricultural groundwater pumping during California’s 2012-2016 drought, which substantially compensated for reduced surface water supplies. Implementation of the 2014 Sustainable Groundwater Management Act … Continue reading

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Some common questions on California water (Part II)

by Jay Lund and Josué Medellín-Azuara This is the second installment of answers to some common questions regarding water problems in California.  Part I examined some common questions on water supplies (questions 1-5).  Part II looks more at common questions … Continue reading

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A water portfolio planning report card for California

by Jay Lund Governor Newsom recently called for a state portfolio of actions to manage water under rapidly changing climate and other conditions.  This post reviews the state of water portfolio planning in California today. In this complex changing world, … Continue reading

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Evaluating Landscape Effects of Turf Replacement

Erik Porse, Stephanie Pincetl, Diane Pataki, and Tom Gillespie Outdoor landscapes in California use water for irrigation, especially during summer. Outdoor water use is the largest portion of residential water use, especially in hotter inland areas and cities with larger … Continue reading

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Some common questions on California water (Part I)

by Jay Lund People are interested in California water problems, and they ask reasonable questions.  Here is a first installment of short science-based answers to some reasonable questions often heard at public and private discussions of water in California.  (Longer … Continue reading

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The California Water Model: Resilience through Failure

by Nicholas Pinter, Jay Lund, Peter Moyle A review of 170 years of water-related successes in California suggests that most successes can be traced directly to past mistakes.  California’s highly variable climate has made it a crucible for innovations in … Continue reading

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Fish are born free, but are everywhere in cages this spring

by Carson Jeffres, Eric Holmes, and Andrew Rypel State, federal, and local governments, water users, and the public are all concerned with the survival of salmon.   Over decades, and especially recent years, most salmon runs have severely declined in California. … Continue reading

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