Category Archives: Delta

Resurrecting the Delta for Desirable Fishes

by Peter Moyle, Carson Jeffres, John Durand The Delta is described in many ways.  When extolling the Delta as a tourist destination, it is described as a place of bucolic beauty; islands of productive farmland are threaded by meandering channels of … Continue reading

Posted in Delta, Fish, Restoration, Sacramento-San Joaquin Delta, Uncategorized | Tagged , , | 10 Comments

Modeling, Measuring, and Comparing Crop Evapotranspiration in the Delta

by Jesse Jankowski Crop evapotranspiration (ET) is the biggest managed loss of water in California, accounting for roughly 80% of human net water use, and includes crop water applications transpired from plants and evaporated from soil. Methods to estimate ET … Continue reading

Posted in Agriculture, California Water, Delta, Planning and Management, Tools | Tagged , | 1 Comment

Reality Check of California Water Fix Model results in a Critical Flow Year

by William Fleenor In 2008 a group from the Center for Watershed Sciences (including this author), joined by an economist from the Public Policy Institute, published findings that suggested that an alternative conveyance for Sacramento River water might improve ecological … Continue reading

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Is Ecosystem-Based Management Legal for the Sacramento-San Joaquin Delta?

by Brian Gray (PPIC Water Policy Center), William Stelle (former NOAA Fisheries West Coast Administrator), and Leon Szeptycki (Stanford University, Water in the West)* Introduction In a recent three-part series posted on this website, a group of independent experts (including one … Continue reading

Posted in California Water, Delta, Sacramento-San Joaquin Delta | Tagged , | 5 Comments

Advice on Voluntary Settlements for California’s Bay-Delta Water Quality Control Plan Part 3: Science for Ecosystem Management

by Jeffrey Mount, PPIC Water Policy Center* Recommendation Improving Delta ecosystem functions under the State Water Board’s proposed Bay-Delta Water Quality Control Plan will require a complex series of changes to water and land management—and a strong science program to … Continue reading

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Advice on Voluntary Settlements for California’s Bay-Delta Water Quality Control Plan Part 2: Recommended Actions to Improve Ecological Function in the Delta

by Jeffrey Mount, PPIC Water Policy Center* Recommendation By strategically linking freshwater flow releases with the management of tidal energy and investments in landscape changes in the Delta, it is possible to improve ecological food webs and habitat for native … Continue reading

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Advice on Voluntary Settlements for California’s Bay-Delta Water Quality Control Plan Part 1: Addressing a Manageable Suite of Ecosystem Problems

by Jeffrey Mount, PPIC Water Policy Center Recommendation The State Water Resources Control Board and the parties seeking to incorporate voluntary settlement agreements in the Bay-Delta Water Quality Control Plan should identify a specific, tractable set of problems that can … Continue reading

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Ecological Incentives for Delta Water Exports

by Jay Lund and Peter Moyle All parties in the Delta have an interest in a healthy ecosystem and in healthy water exports.  Without a healthy ecosystem, endangered species requirements increasingly intrude on water exports and Delta landowners.  Without healthy … Continue reading

Posted in California Water, Delta, Sacramento-San Joaquin Delta | Tagged , | 8 Comments

Will Delta Smelt Have a Happy New Year?

by James Hobbs and Peter Moyle The results of 2017 surveys of Delta fishes are coming in. Already, the results are clear:  it was an unhappy year for Delta smelt. The wet year with high outflows should have created an … Continue reading

Posted in Delta, Delta Smelt, Fish, Sacramento-San Joaquin Delta | Tagged , | 3 Comments

Duel Conveyance: Delta Tunnel Dilemmas

by Jay Lund A new option has entered public discussion of Delta water supplies, having only one cross-Delta tunnel instead of two. The official State WaterFix proposal is for two tunnels (totaling 9,000 cfs capacity) under-crossing the Delta for 35 … Continue reading

Posted in California Water, Delta, Sacramento-San Joaquin Delta | Tagged | 1 Comment