Surface Water Ambient Monitoring Program (SWAMP)

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  • An Index of Biotic Integrity (IBI) for Perennial Streams in California’s Central Valley

    An Index of Biotic Integrity (IBI) for Perennial Streams in California’s Central Valley

    California State Water Resources Control Board | December 1, 2008...
    Summary

    Bioassessment is the science of using aquatic organisms as indicators of ecological condition in streams in rivers. Many types of organisms can be...

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  • Assessing the Health of Southern California Streams

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    Assessing the Health of Southern California Streams

    California State Water Resources Control Board | April 14, 2011...
    Summary

    There are over 4,200 miles of perennial streams in the coastal watersheds of Southern California. Effective protection and management of these resources require...

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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

    California State Water Resources Control Board | January 1, 1970...
    Summary

    Application of Macroinvertebrate, Diatom and Overall Condition Indices for Assessing Southern California Depressional Wetlands Depressional wetlands are the most abundant, yet most threatened...

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  • Benthic Invertebrate and Deposited Sediment TMDL Guidance for the Pajaro River Watershed

    Benthic Invertebrate and Deposited Sediment TMDL Guidance for the Pajaro River Watershed

    California State Water Resources Control Board | March 1, 2016...
    Summary

    The Pajaro River and its tributaries are exposed to sediments from a variety of sources. To establish limits for regulating this pollutant, it...

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  • Bioaccumulation of Pollutants in California Waters: A Review of Historic Data and Assessment of Impacts on Fishing and Aquatic Life

    Bioaccumulation of Pollutants in California Waters: A Review of Historic Data and Assessment of Impacts on Fishing and Aquatic Life

    California State Water Resources Control Board, San Francisco Estuary Institute | October 24, 2007...
    Summary

    This report was written for the State Water Resources Control Board’s Surface Water Ambient Monitoring Program (SWAMP) as a step toward the development...

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  • Biology-based Stressor Thresholds

    Biology-based Stressor Thresholds

    California State Water Resources Control Board, Non-point Source Program | October 1, 2011...
    Summary

    The objective of this memo is to describe how biological assessment data (such as those collected using Surface Water Ambient Monitoring Program (SWAMP)...

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  • Condition of California Perennial, Wadeable Streams Based on Algal Indicators

    Condition of California Perennial, Wadeable Streams Based on Algal Indicators

    Southern California Coastal Water Research Project, San Diego Regional Water Quality Control Board | October 1, 2013...
    Summary

    Algae can serve as indicators of stream ecological condition in two ways. Information about algal community composition can be used for bioassessment analogous...

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  • Ecological Condition Assessments of California’s Perennial Wadeable Streams (2000 through 2006)

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    Ecological Condition Assessments of California’s Perennial Wadeable Streams (2000 through 2006)

    California State Water Resources Control Board | October 15, 2007...
    Summary

    The struggle to adequately monitor the condition of waterbodies with limited financial resources is a challenge faced by water resource agencies worldwide. For...

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  • Ecological Condition Assessments of California’s Perennial Wadeable Streams: Highlights from the Surface Water Ambient Monitoring Program’s Perennial Streams Assessment (PSA ) (2000-2007)

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    Ecological Condition Assessments of California’s Perennial Wadeable Streams: Highlights from the Surface Water Ambient Monitoring Program’s Perennial Streams Assessment (PSA ) (2000-2007)

    California State Water Resources Control Board | October 1, 2011...
    Summary

    Since 2000, California has conducted three successive probability surveys of its perennial streams and rivers, each with a focus on biological endpoints. These...

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  • Effects of wildfire on benthic macroinvertebrate assemblages in Southern California streams and implications for bioassessment monitoring programs

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    Effects of wildfire on benthic macroinvertebrate assemblages in Southern California streams and implications for bioassessment monitoring programs

    California State Water Resources Control Board | June 13, 2012...
    Summary

    Wildfires are common in arid regions of southern California, sometimes burning as much as half a million acres in a season. These fires...

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  • Estimating Exposure of Piscivorous Birds and Sport Fish to Mercury in California Lakes Using Prey Fish Monitoring—A Predictive Tool for Managers

    Estimating Exposure of Piscivorous Birds and Sport Fish to Mercury in California Lakes Using Prey Fish Monitoring—A Predictive Tool for Managers

    U.S. Geological Survey (USGS) | May 22, 2015...
    Summary

    Numerous water bodies in California are listed under the Clean Water Act as being impaired due to mercury (Hg) contamination. The Surface Water...

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  • Evaluation of the California State Water Resource Control Board’s Bioassessment Program

    Evaluation of the California State Water Resource Control Board’s Bioassessment Program

    California State Water Resources Control Board | May 15, 2009...
    Summary

    The State of California’s bioassessment, monitoring and assessment (M&A), and water quality standards (WQS) programs were reviewed in January 2008 using the U.S....

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  • Extent of California’s Perennial and Non-perennial Steams

    Extent of California’s Perennial and Non-perennial Steams

    California State Water Resources Control Board, Non-point Source Program | October 1, 2011...
    Summary

    The distribution of perennial and non-perennial streams in different regions of the State has direct bearing on several of the State Water Board’s...

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  • Incorporating Bioassessment Using Freshwater Algae into California’s Surface Water Ambient Monitoring Program (SWAMP)

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    Incorporating Bioassessment Using Freshwater Algae into California’s Surface Water Ambient Monitoring Program (SWAMP)

    California State Water Resources Control Board | June 3, 2008...
    Summary

    This document was written to assist California’s State Water Resources Control Board (SWRCB) with incorporating algae into the bioassessment toolbox of the Surface...

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  • Initial Trends in Chemical Contamination, Toxicity and Land Use in California Watersheds: Stream Pollution Trends (SPoT) Monitoring Program

    Initial Trends in Chemical Contamination, Toxicity and Land Use in California Watersheds: Stream Pollution Trends (SPoT) Monitoring Program

    California State Water Resources Control Board | April 1, 2013...
    Summary

    The State Water Resources Control Board’s Surface Water Ambient Monitoring Program (SWAMP) has released the second report on results from a continuing statewide...

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  • Land Use, Pollutants, and Water Quality in California Streams

    Land Use, Pollutants, and Water Quality in California Streams

    California State Water Resources Control Board | April 12, 2012...
    Summary

    A number of spatial patterns were evident in this survey of watersheds from throughout California. Stream sediment concentrations of heavy metals, such as...

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  • Long-term Monitoring of Pollutants in Fish and Mussels Documents Major Improvements and Persistent Problems

    Long-term Monitoring of Pollutants in Fish and Mussels Documents Major Improvements and Persistent Problems

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

    Of the 390 sites sampled between 1998 and 2003, 32 percent fell into the “low” contamination category. These sites were scattered throughout the...

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  • Mercury Risks to Wildlife in California Lakes: Statewide Survey Finds Fish-Eating Birds at Risk in Many Lakes

    Mercury Risks to Wildlife in California Lakes: Statewide Survey Finds Fish-Eating Birds at Risk in Many Lakes

    U.S. Geological Survey | May 22, 2015...
    Summary

    Numerous water bodies in California are listed under the Clean Water Act as being impaired by mercury contamination. Mercury generally poses risks both...

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  • North Coast Regional Water Quality Control Board Fact Sheet

    North Coast Regional Water Quality Control Board Fact Sheet

    California State Water Resources Control Board | March 1, 2010...
    Summary

    The North Coast Region receives more precipitation than any other part of California. Abundant in surface water and groundwater resources, the North Coast...

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  • Statewide Perspective on Chemicals of Concern and Connections Between Stream Water Quality and Land Use

    Statewide Perspective on Chemicals of Concern and Connections Between Stream Water Quality and Land Use

    California State Water Resources Control Board | February 1, 2012...
    Summary

    The California Surface Waters Ambient Monitoring Program (SWAMP) is tasked with assessing water quality in all of California’s surface waters. The program conducts...

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