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Economic Efficiency of Water Use and Allocation in California: A Scoping-Level Analysis

Delta Vision Blue Ribbon Task Force (Delta Vision) | July 1st, 2008

Summary

This report identifies key issues related to the economic efficiency of water development, allocation and use in California and discusses general policy changes that migh

This report identifies key issues related to the economic efficiency of water development, allocation and use in California and discusses general policy changes that might improve economic efficiency. Policy options focus on water pricing, water transfers, water use efficiency (i.e, conservation) and State development and enforcement policies. Analysis is provided at a scoping level of detail. Some important empirical issues that weigh on the relative merits of potential policy changes are not addressed. Efficiency of water use has never been more important in California. There is a need to save water and money. California has recently made progress in improved economic efficiency of water use, but major issues remain. Also, recent changes in the amount and location of supplies suggest a review of allocation efficiency. There are two important efficiency topics that this paper does not address in detail. First, economic efficiency of water use for ecosystem purposes is a viable concept, but it is difficult to apply given the state of Delta ecosystem science and the current range of possible futures. We can not quantify the relationship between water and ecosystem functions and values. Therefore, our ability to prescribe efficiency changes related to Delta water for ecosystem purposes is limited. Second, this paper also does not address the economic efficiency of major new storage or Delta conveyance facilities. The efficiency of specific water supply projects including regional or local conjunctive use and groundwater storage projects are also not considered. These are being addressed in different forums. This report focuses on other types of uses, allocations and development of water. A variety of potential actions and policies that might improve efficiency in the allocation, use and development of water resources are discussed. Some of the efficiency issues are • Are water allocations under California’s water rights systems efficient? • If there are inefficiencies, could an effective water transfer market increase efficiency? • Are there barriers or constraints to water transfer markets that should be removed? • How could water pricing be changed to increase efficiency? • How could California encourage efficiency in the use and development of water through incentives such as grants and loans, and through enforcement? In all cases, our findings represent potential improvements from the perspective of economic efficiency alone. There are usually other, non-economic considerations which would play into the larger question of the laws and policies that might be changed.

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Economic Productivity of California Water

Pacific Institute | October 22nd, 2004

Summary

This short summary presents information on total employment, total revenues/income, and total water use in California for various industrial and commercial sectors, using

This short summary presents information on total employment, total revenues/income, and total water use in California for various industrial and commercial sectors, using data through 2004. Far more detailed information, data, and analysis are available from the Pacific Institute and complete data sources are listed at the end of this memo. There are gross disparities in the “economic productivity” of water use. Even modest reallocations of water from one sector of our economy to another can produce significant changes in job availability and gross state product, but such reallocations must take account of regional economic priorities, job displacement and retraining issues, equity, and environmental side-effects. The data in this analysis suggest that carefully tailored water and business strategies, however, can lead to substantial benefits for California’s economy, job picture, and agricultural production.

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Freshwater Scarcity

Annual Review of Environment and Resources (Annual Reviews) | October 24th, 2021

Summary

The availability and use of fresh water are critical for human health and for economic and ecosystem stability. But the growing mismatch between human demands and natur

The availability and use of fresh water are critical for human health and for economic and ecosystem stability. But the growing mismatch between human demands and natural freshwater availability is contributing to water scarcity, affecting industrial and agricultural production and a wide range of social, economic, and political problems, including poverty, deterioration of ecosystem health, and violent conflicts. Understanding and addressing different forms of water scarcity are vital for moving toward more sustainable management and use of fresh water. We provide here a review of concepts and definitions of water scarcity, metrics and indicators used to evaluate scarcity together with strategies for addressing and reducing the adverse consequences of water scarcity, including the development of alternative sources of water, improvements in water-use efficiency, and changes in systems of water management and planning.

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Future land-use related water demand in California

Environmental Research Letters (IOP) | May 18th, 2019

Summary

Water shortages in California are a growing concern amidst ongoing drought, earlier spring snowmelt, projected future climate warming, and currently mandated water use r

Water shortages in California are a growing concern amidst ongoing drought, earlier spring snowmelt, projected future climate warming, and currently mandated water use restrictions. Increases in population and land use in coming decades will place additional pressure on already limited available water supplies. We used a state-and-transition simulation model to project future changes in developed (municipal and industrial) and agricultural land use to estimate associated water use demand from 2012 to 2062. Under current efficiency rates, total water use was projected to increase 1.8 billion cubic meters (+4.1%) driven primarily by urbanization and shifts to more water intensive crops. Only if currently mandated 25% reductions in municipal water use are continuously implemented would water demand in 2062 balance to water use levels in 2012. This is the first modeling effort of its kind to examine regional land-use related water demand incorporating historical trends of both developed and agricultural land uses.

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Guidebook for Implementation of SB 610 and SB 221 to assist water suppliers, cities, and counties in integrating water and land use planning

California Department of Water Resources (DWR) | October 10th, 2003

Summary

Senate Bills 610 (Chapter 643, Statutes of 2001) and Senate Bill 221 (Chapter 642, Statutes of 2001) amended state law, effective January 1, 2002, to improve the link bet

Senate Bills 610 (Chapter 643, Statutes of 2001) and Senate Bill 221 (Chapter 642, Statutes of 2001) amended state law, effective January 1, 2002, to improve the link between information on water supply availability and certain land use decisions made by cities and counties. SB 610 and SB 221 are companion measures which seek to promote more collaborative planning between local water suppliers and cities and counties. Both statutes require detailed information regarding water availability to be provided to the city and county decision-makers prior to approval of specified large development projects. Both statutes also require this detailed information be included in the administrative record that serves as the evidentiary basis for an approval action by the city or county on such projects. Both measures recognize local control and decision making regarding the availability of water for projects and the approval of projects. Under SB 610, water assessments must be furnished to local governments for inclusion in any environmental documentation for certain projects (as defined in Water Code 10912 [a]) subject to the California Environmental Quality Act. Under SB 221, approval by a city or county of certain residential subdivisions requires an affirmative written verification of sufficient water supply. If coordinated and comprehensive water supply planning is underway at the time that the SB 610-water assessment is prepared, compliance with SB 221 will be greatly facilitated. SB 221 is intended as a ‘fail safe’ mechanism to ensure that collaboration on finding the needed water supplies to serve a new large subdivision occurs when it should – before construction begins. Not every project that is subject to the requirements of SB 610 would also require the mandatory water verification of SB 221 (e.g. if there is no subdivision map approval). Conversely, not every project that is subject to the requirements of SB 221 would also require the environmental document to contain an SB 610 water supply assessment. Projects approved before January 1, 2002 were not subject to the requirements of SB 610 or SB 221; however, some projects may have been subject to the requirement to prepare a water supply assessment as set forth in Senate Bill 901 of 1995 (Chapter 881, Statues of 1995). A foundational document for compliance with both SB 610 and SB 221 is the Urban Water Management Plan (UWMP). Both of these statutes repeatedly identify the UWMP as a planning document that, if properly prepared, can be used by a water supplier to meet the standards set forth in both statutes. Thorough and complete UWMPs will allow water suppliers to use UWMPs as a foundation to fulfill the specific requirements of these two statutes. Cities, counties, water districts, property owners, and developers will all be able to utilize this document when planning for and proposing new projects.

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Hidden Oasis: Water Conservation and Efficiency in Las Vegas

Pacific Institute | November 20th, 2007

Summary

Two of the West’s preeminent water organizations report Las Vegas Valley is sitting on an oasis of water and money savings. In their new report, the Pacific Institute a

Two of the West’s preeminent water organizations report Las Vegas Valley is sitting on an oasis of water and money savings. In their new report, the Pacific Institute and Western Resource Advocates find up to 40% of water could be saved in some sectors through improvements to indoor and outdoor water efficiency. They also found that through improving indoor water efficiency in particular, Las Vegas residents and businesses can cut water-related energy use and greenhouse gases. These findings are contained in Hidden Oasis: Water Conservation and Efficiency in Las Vegas available for download below. “Ninety percent of Las Vegas’ water efficiency money is spent on one program—turf removal. This program is important, but participation has waned and it is far from the only tool at their disposal,” said Heather Cooley, report co-author and Pacific Institute Senior Associate. “Las Vegas should capitalize on strategies that other Western cities have proven to be effective.” Hidden Oasis reveals that the Southern Nevada Water Authority, which provides water to Las Vegas and surrounding communities, can tap a number of tested, cost-effective efficiency measures to cut current water waste by up to 86,000 acre-feet. Single-family homes in Las Vegas use 100 gallons of water outside, per person, per day—almost entirely for landscaping. This use is substantially higher than in Los Angeles, Tucson, or Albuquerque. Reducing Las Vegas’ outdoor water use to more reasonable levels could cut Nevada’s total Colorado River withdrawals by 10 percent. Researchers found that by improving and expanding existing programs, and adding programs proven elsewhere in the West, the SNWA can cut Las Vegas homeowners’ indoor water waste by 40% and hotel and casino water waste by 30%. These indoor efficiency gains come from upgrading fixtures and appliances, not changing behavior. Improving total water efficiency not only saves significant water and energy expenses, it also better insulates the region from drought. “Improving indoor and outdoor water efficiency makes Las Vegas less vulnerable to current and future droughts,” said Taryn Hutchins-Cabibi, report coauthor and Water Policy Analyst at WRA. “Given the scarcity of fresh water, rising energy prices, and the looming threat of climate change, Las Vegas’ water customers need the SNWA’s help to curb unnecessary water waste and save money.”

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Law and Policies that Address Equitable, Climate-Resilient Water and Sanitation (Part 2)

Pacific Institute | October 21st, 2024

Summary

In the United States, federal, tribal, state, and local laws and policies exist to govern the provision of water and sanitation services to communities and homes. The law

In the United States, federal, tribal, state, and local laws and policies exist to govern the provision of water and sanitation services to communities and homes. The laws are designed to ensure the protection of public health and the environment; deliver sufficient, safe water for drinking, bathing, cooking, and other household needs; and remove and treat domestic (i.e., household) waste. People without complete plumbing or safe water live within the “water access gap.” As explored in the first report in this series, climate change—from extreme temperatures to droughts, floods, extreme storms, and wildfires—is making it hard to close this gap and keep it from growing. Water and sanitation systems in frontline communities already feel the disproportionate “first and worst” impacts of climate change to these systems and to their access to water and sanitation. Laws and policies should help anticipate and plan for the incremental and catastrophic impacts of climate change and protect those most harmed by the effects. Unfortunately, in most cases, the climate is changing faster than the law can respond, thereby leaving frontline communities’ water and sanitation systems vulnerable to damage or destruction. (Click here for Part 1)

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Living with Water Scarcity

David Zetland | August 5th, 2014

Summary

“Don’t panic. It is easy to live with water scarcity. Use politics to allocate community water before using economics to ration commodity water," says author David Z

“Don’t panic. It is easy to live with water scarcity. Use politics to allocate community water before using economics to ration commodity water," says author David Zetland. Scarcity is a perception. Shortage is a fact. Most of us deal with scarcity every day. We spend our time going places, doing things and seeing people. We spend our money on products and services. We wouldn’t mind a bit more time and money, but at least we get some of what we want. Shortage is worse than scarcity because you can’t get any of what you want, even if you have time or money. Increasing water scarcity is forcing us to choose among competing wants. Some lucky people do not face these choices, but an increasing number do. Those people need to manage scarcity if they want to avoid shortage. This book is not about measuring scarcity, a perception that changes from one place to another and one community to another. This book describes appropriate solutions for living with—perhaps even thriving with — water scarcities in both quantity and quality.

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Mainstreaming Potable Water Reuse in the United States: Strategies for Leveling the Playing Field

U.S. Environmental Protection Agency (EPA) | April 18th, 2018

Summary

The practice of potable water reuse has evolved in important ways in the United States over the past 50 years, especially during the last 25 years. Prior to the 1990s, m

The practice of potable water reuse has evolved in important ways in the United States over the past 50 years, especially during the last 25 years. Prior to the 1990s, many cities and public health regulators recognized that municipal wastewater effluent accounted for a significant fraction of the surface water entering their drinking water treatment plants. Wastewater utilities generally addressed this situation by treating and disinfecting effluent consistent with Clean Water Act permitting requirements and, where feasible, minimizing the fraction of wastewater in drinking water intakes. Because of concerns associated with the presence of wastewater and contaminants from other sources (e.g., industrial pollution, agricultural runoff), some cities began to upgrade drinking water treatment plants by installing advanced treatment technologies to provide enhanced safeguards for public health protection. As water availability and water quality issues became more prevalent in rapidly growing areas, water managers soon began to explicitly consider the use of wastewater effluent to augment water supplies.

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Managed Environmental Water Use Efficiency: Evidence in Practice

University of California, Berkeley (UC Berkeley) | May 12th, 2006

Summary

The California Water Plan Update 2005 first introduced the term Managed Environmental Water Use Efficiency (MEWUE). Specifically, it defines MEWUE as a “mechanism to an

The California Water Plan Update 2005 first introduced the term Managed Environmental Water Use Efficiency (MEWUE). Specifically, it defines MEWUE as a “mechanism to analyze alternative uses of managed environmental water to determine which allocation of a given amount of water will maximize environmental benefits, and as a means to improve decision-making over time.” While MEWUE is a new term, we found several instances where managers maximized environmental benefit from a given amount of water in current practice. This paper demonstrates and analyzes current applications of MEWUE. It then provides the Department of Water Resources with the following recommendations to advance the concept and formally incorporate it into environmental water management: Formalize a MEWUE Policy to clearly state that the goal of MEWUE is a management strategy to maximize environmental benefit and not a water conservation policy. Develop Best Management Practices to increase understanding, provide guidance, and encourage use of MEWUE. Operate a MEWUE Pilot to learn more about the way MEWUE works, understand its strengths, and improve on its weaknesses. Facilitate an Environmental Water Market by applying experience and infrastructure to provide solutions for projects that require more water.

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Keywords

agriculture (2)
agriculture water use and efficiency (10)
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Basin

Acton Valley 4-005
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Amos Valley 7-034
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Arroyo Seco Valley 7-037
Avawatz Valley 6-026
Batiquitos Lagoon Valley 9-022
Bear Valley 8-009
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Bicycle Valley 6-025
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Borrego Valley - Ocotillo Wells 7-024.02
Bristol Valley 7-008
Broadwell Valley 6-032
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Butte Valley 1-003
Cadiz Valley 7-007
Cady Fault Area 6-090
Cahuilla Valley 9-006
Calzona Valley 7-041
Campo Valley 9-028
Canebrake Valley 7-046
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Carrizo Plain 3-019
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Castac Lake Valley 5-029
Caves Canyon Valley 6-038
Chemehuevi Valley 7-043
Chocolate Valley 7-032
Cholame Valley 3-005
Chuckwalla Valley 7-005
Coachella Valley - Desert Hot Springs 7-021.04
Coachella Valley - Indio 7-021.01
Coachella Valley - Mission Creek 7-021.02
Coachella Valley - San Gorgonio Pass 7-021.04
Coastal Plain of Los Angeles - Central 4-011.04
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Coastal Plain of Los Angeles - Santa Monica 4-011.01
Coastal Plain of Los Angeles - West Coast 4-011.03
Coastal Plain of Orange County 8-001
Coastal Plain of San Diego 9-033
Collins Valley 7-055
Conejo 4-010
Copper Mountain Valley 7-011
Corralitos - Pajaro Valley 3-002.01
Cottonwood Valley 9-027
Coyote Lake Valley 6-037
Coyote Wells Valley 7-029
Cronise Valley 6-035
Cuddeback Valley 6-050
Cuyama Valley 3-013
Dale Valley 7-009
Darwin Valley 6-057
Davies Valley 7-061
Deadman Valley - Deadman Lake 7-013.01
Deadman Valley - Surprise Spring 7-013.02
Death Valley 6-018
Deep Springs Valley 6-015
Denning Spring Valley 6-078
Downtown 2-040
East Salton Sea 7-033
Eel River Valley 1-010
El Cajon Valley 9-016
El Mirage Valley 6-043
Elsinore - Bedfored-Coldwater 8-004.02
Elsinore - Elsinore Valley 8-004.01
Escondido Valley 9-009
Fenner Valley 7-002
Fish Lake Valley 6-014
Fremont Valley 6-046
Gilroy-Hollister Valley - Llagas Area 3-003.01
Goldstone Valley 6-048
Goleta 3-016
Harper Valley 6-047
Helendale Fault Valley 7-048
Hemet Lake Valley 8-006
Hidden Valley 4-016
Imperial Valley 7-030
Indian Wells Valley - 6-054
Iron Ridge Area 7-050
Ivanpah Valley 6-030
Jacumba Valley 7-047
Johnson Valley - Soggy Lake 7-018.01
Johnson Valley - Upper Johnson Valley 7-018.02
Joshua Tree 7-062
Kane Wash Area 6-089
Kelso Valley 6-031
Lanfair Valley 7-001
Langford Valley - Irwin 6036.02
Langford Valley - Langford Well Lake 6-036.01
Langford Valley 6-036.02
Las Posas Valley 4-008
Lavic Valley 7-014
Leach Valley 6-027
Lockwood Valley 4-017
Long Valley 6-011
Los Osos Valley - Los Osos 3-008.01
Los Osos Valley - Warden Creek 3-008.02
Lost Horse Valley 7-051
Lower Kingston Valley 6-021
Lower Mojave River Valley 6-040
Lucerne Valley 7-019
Malibu Valley 4-022
Means Valley 7-017
Mesquite Valley 6-029
Middle Amargosa Valley - 6-020
Middle Mojave River Valley 6-041
Mission Valley 9-014
Modoc) 5-004
Morongo Valley 7-020
Morro Valley 3-041
Napa-Sonoma Valley - Napa-Sonoma Lowlands 2-002.03
Needles Valley 7-044
Ocotillo-Clark Valley 7-025
Ogilby Valley 7-035
Ojai Valley 4-002
Orocopia Valley - 7-031
Owens Valley - Fish Slough 6-012.02
Owens Valley 6-012.01
Owl Lake Valley 6-088
Pahrump Valley 6-028
Palo Verde Mesa 7-039
Palo Verde Valley 7-038
Pamo Valley 9-024
Panamint Valley 6-058
Peach Tree Valley 3-032
Petaluma Valley 2-001
Pilot Knob Valley 6-051
Pinto Valley 7-006
Pipes Canyon Fault Valley 7-049
Pittsburgh Plain 2-004
Piute Valley 7-045
Pleasant Valley 4-006
Potrero Valley 9-029
Poway Valley 9-013
Raymond 4-023
Red Pass Valley 6-024
Redding Area - Anderson 5-006.03
Redding Area - Bowman 5-006.01
Redding Area - Enterprise 5-006.04
Redding Area - Millville 5-006.05
Redding Area - South Battle Creek 5-006.06
Rice Valley 7-004
Riggs Valley 6-023
Russell Valley 4-020
Sacramento Valley - Antelope 5-021.54
Sacramento Valley - Bend 5-021.53
Sacramento Valley - Butte 5-021.70
Sacramento Valley - Colusa 5-021.52
Sacramento Valley - Corning 5-021.51
Sacramento Valley - Los Molinos 5-021.56
Sacramento Valley - North American (5-021.64)
Sacramento Valley - North Yuba 5-021.60
Sacramento Valley - Red Bluff 5-021.50
Sacramento Valley - Solano 5-021.66
Sacramento Valley - South American 5-021.65
Sacramento Valley - South Yuba 5-021.61
Sacramento Valley - Sutter 5-021.62
Sacramento Valley - Vina 5-021.57
Sacramento Valley - Wyandotte Creek 5-021.69
Sacramento Valley - Yolo 5021.67
Salinas Valley - 180/400 Foot Aquifer 3-004.01
Salinas Valley - Atascadero Area 3-004.11
Salinas Valley - East Side Aquifer 3-004.02
Salinas Valley - Forebay Aquifer 3-004.04
Salinas Valley - Langley Area 3-004.09
Salinas Valley - Monterey 3-004.10
Salinas Valley - Paso Robles Area 3-004.06
Salinas Valley - Upper Valley Aquifer 3-004.05
Saline Valley 6-017
Salt Wells Valley 6-053
San Antonio Creek Valley 3-014
San Dieguito Creek 9-012
San Elijo Valley 9-023
San Felipe Valley 7-027
San Fernando Valley 4-012
San Gabriel Valley 4-013
San Jacinto 8-005
San Joaquin Valley - Chowchilla 5-022.05
San Joaquin Valley - Cosumnes (5-022.16)
San Joaquin Valley - Delta-Mendota 5-022.07
San Joaquin Valley - East Contra Costa 5-022.19
San Joaquin Valley - Eastern San Joaquin 5-022.01
San Joaquin Valley - Kaweah 5-022.11
San Joaquin Valley - Kern 5-022.14
San Joaquin Valley - Kings 5-022.08
San Joaquin Valley - Madera 5-022.06
San Joaquin Valley - Merced 5-022.04
San Joaquin Valley - Modesto 5-022.02
San Joaquin Valley - Pleasant Valley 5-022.10
San Joaquin Valley - Tracy 5-022.15
San Joaquin Valley - Tulare Lake 5-022.12
San Joaquin Valley - Tule 5-022.13
San Joaquin Valley - Turlock 5-022.03
San Joaquin Valley - Westside 5-022.09
San Joaquin Valley - White Wolf 5-022.18
San Juan Valley 9-001
San Luis Obispo Valley 3-009
San Luis Rey Valley - Lower San Luis Rey Valley 9-007.02
San Luis Rey Valley - Upper San Luis Rey Valley 9-007.01
San Marcos Area 9-032
San Mateo Valley 9-002
San Onofre Valley 9-003
San Pasqual Valley 9-010
Santa Barbara 3-017
Santa Clara River Valley - Fillmore 4-004.05
Santa Clara River Valley - Mound 4-004.03
Santa Clara River Valley - Oxnard 4-004.02
Santa Clara River Valley - Piru 4-004.06
Santa Clara River Valley - Santa Clara River Valley East 4-004.07
Santa Clara River Valley - Santa Paula 4-004.04
Santa Clara Valley - East Bay Plain 2-009.04
Santa Clara Valley - Niles Cone 2-009.01
Santa Clara Valley - San Mateo Plain 2-009.03
Santa Clara Valley - Santa Clara 2-009.02
Santa Cruz Mid-County 3-001
Santa Margarita 3-027
Santa Maria River Valley - Arroyo Grande 3-012.02
Santa Maria River Valley - Santa Maria 3-012.01
Santa Maria River Valley 3-012.02
Santa Maria Valley 9-011
Santa Rosa Valley - Santa Rosa Plain 1-055.01
Santa Ynez River Valley 3-015
Scott River Valley 1-005
Searles Valley 6-052
Seven Oaks Valley 8-008
Shasta Valley 1-004
Sierra Valley 5-012.01
Silver Lake Valley 6-034
Simi Valley 4-009
Soda Lake Valley 6-033
South San Diego River Valley 9-015
Superior Valley 6-049
Temecula Valley 9-005
Terwilliger Valley 7-026
Thousand Oaks Area 4-019
Tule Lake 1-002-01
Twentynine Palms Valley 7-010
Ukiah Valley 1-052
Upper Kingston Valley 6-022
Upper Mojave River Valley 6-042
Upper Ojai Valley 4-001
Upper Santa Ana Valley - Chino 8-002.01
Upper Santa Ana Valley - Cucamonga 8-002.02
Upper Santa Ana Valley - Rialto-Colton 8-002.04
Upper Santa Ana Valley - Riverside-Arlington 8-002.03
Upper Santa Ana Valley - San Bernardino 8-002.06
Upper Santa Ana Valley - San Timoteo 8-002.08
Upper Santa Ana Valley - Temescal 8-002.09
Upper Santa Ana Valley - Yucaipa 8-002.07
Vallecito-Carrizo Valley 7-028
Ventura River Valley - Lower Ventura River 4-003.02
Ventura River Valley - Upper Ventura River 4-003.01
Vidal Valley 7-042
Ward Valley 7-003
Warren Valley 7-012
West Salton Sea
Wingate Valley 6-019
Yuma Valley 7-036

Delta Documents Primers on Cal Water Infrastructure, Water Rights and Government

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