wetlands

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  • An Evaluation of Compensatory Mitigation Projects Permitted Under Clean Water Act Section 401 by the California State Water Resources Control Board, 1991-2002

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    An Evaluation of Compensatory Mitigation Projects Permitted Under Clean Water Act Section 401 by the California State Water Resources Control Board, 1991-2002

    California State Water Resources Control Board | August 2, 2008...
    Summary

    The purpose of this project, which was funded by the California State Water Resources Control Board (SWRCB), was to evaluate the compliance and...

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  • Assessment of the condition of San Francisco Bay Area depressional wetlands

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    Assessment of the condition of San Francisco Bay Area depressional wetlands

    State Water Resources Control Board | March 23, 2017...
    Summary

    Depressional wetlands are the most abundant, yet most threatened wetland type in California. Despite their relatively ubiquitous nature, they are poorly characterized, and...

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  • Assessment of the condition of Southern California depressional wetlands

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    Assessment of the condition of Southern California depressional wetlands

    State Water Resources Control Board | April 18, 2006...
    Summary

    Depressional wetlands are the most abundant, yet most threatened wetland type in California. Despite their relatively ubiquitous nature, they are poorly characterized, and...

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  • Executive Summary: An Evaluation of Compensatory Mitigation Projects Permitted Under Clean Water Act Section 401 by the California State Water Resources Control Board, 1991-2002

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    Executive Summary: An Evaluation of Compensatory Mitigation Projects Permitted Under Clean Water Act Section 401 by the California State Water Resources Control Board, 1991-2002

    California State Water Resources Control Board | August 1, 2007...
    Summary

    The purpose of this project, which was funded by the California State Water Resources Control Board (SWRCB), was to evaluate the compliance and...

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  • Incorporating Wetlands into Watershed Planning

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    Incorporating Wetlands into Watershed Planning

    US Environmental Protection Agency | February 26, 2013...
    Summary

    The purpose of this Supplement is to encourage the inclusion of proactive wetland management into watershed plans because wetlands play an integral role...

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  • Managing California’s Freshwater Ecosystems: Lessons from the 2012-16 Drought

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    Managing California’s Freshwater Ecosystems: Lessons from the 2012-16 Drought

    Public Policy Institute of California (PPIC) | November 16, 2017...
    Summary

    The 2012–16 drought caused unprecedented stress to California’s ecosystems and pushed many native species to the brink of extinction. It also tested the...

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  • Mercury on a landscape scale—Balancing regional export with wildlife health

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    Mercury on a landscape scale—Balancing regional export with wildlife health

    U.S. Geological Survey (USGS), U.S. Environmental Protection Agency (EPA), U.S. Bureau of Land Management (BLM), California Department of Fish and Wildlife (CDWF), California Water Boards - Central Valley Regional Water Quality Control Board, Cosumnes River Preserve | June 26, 2018...
    Summary

    The Cosumnes River watershed requires a 57–64 percent reduction in loads to meet the new Delta methylmercury (MeHg) total maximum daily load allocation,...

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  • Mercury, Monomethyl Mercury, and Dissolved Organic Carbon Concentrations in Surface Water Entering and Exiting Constructed Wetlands Treated with Metal-Based Coagulants, Twitchell Island, California

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    Mercury, Monomethyl Mercury, and Dissolved Organic Carbon Concentrations in Surface Water Entering and Exiting Constructed Wetlands Treated with Metal-Based Coagulants, Twitchell Island, California

    USGS | August 30, 2015...
    Summary

    Coagulation with metal-based salts is a practice commonly employed by drinking-water utilities to decrease particle and dissolved organic carbon concentrations in water. In...

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  • Ordinary High Flows and the Stage–Discharge Relationship in the Arid West Region

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    Ordinary High Flows and the Stage–Discharge Relationship in the Arid West Region

    Army Corps of Engineers | July 14, 2011...
    Summary

    The Ordinary High Water Mark (OHWM) defines the lateral extent of non-wetland waters and is regulated as “Waters of the United States” under...

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  • Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0)

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    Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Arid West Region (Version 2.0)

    Army Corps of Engineers | September 9, 2008...
    Summary

    This document is one of a series of Regional Supplements to the Corps of Engineers Wetland Delineation Manual, which provides technical guidance and...

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  • Regulatory steps needed to protect and conserve wetlands not subject to the Clean Water Act

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    Regulatory steps needed to protect and conserve wetlands not subject to the Clean Water Act

    State Water Resources Control Board | November 17, 2003...
    Summary

    This report responds to legislative direction to describe the steps and resources needed to protect California wetlands and other waters that are not...

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  • Sediment Supply to San Francisco Bay, Water Years 1995 through 2016: Data, trends, and monitoring recommendations to support decisions about water quality, tidal wetlands, and resilience to sea level rise

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    Sediment Supply to San Francisco Bay, Water Years 1995 through 2016: Data, trends, and monitoring recommendations to support decisions about water quality, tidal wetlands, and resilience to sea level rise

    San Francisco Estuary Institute | June 11, 2018...
    Summary

    Knowledge of the status and trends of sediment supply to San Francisco Bay is critically important for management decisions about dredging, marsh restoration,...

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  • The Status of Perennial Estuarine Wetlands in the State of California

    The Status of Perennial Estuarine Wetlands in the State of California

    California State Water Resources Control Board | September 13, 2008...
    Summary

    The statewide initiative to monitor the condition of wetlands has produced a report on the status of wetlands in California’s estuaries. The report...

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