Welcome to the California Regional Water Quality Control Board - Lahontan Welcome to the California Environmental Protection Agency

Surface Water Ambient Monitoring Program (SWAMP)

Program Description

SWAMP is a statewide monitoring effort designed to assess the conditions of surface waters throughout the State of California. The SWAMP program was first established in year 2000 by the State Water Resources Control Board (SWRCB).

For the purposes of SWAMP, “ambient” monitoring refers to any activity in which information about the status of the physical, chemical, and/or biological characteristics of the environment is collected to answer specific questions about the status and trends in water quality and/or beneficial uses of water.

The primary objectives of surface water monitoring at the Lahontan Region are:

  • to determine (to the extent to which funding is available) whether ambient water quality at selected sites is in compliance with the chemical and physical water quality objectives contained in the Water Quality Control Plan for the Lahontan Region (Basin Plan) and the “California Toxics Rule.”

  • to determine (to the extent to which funding is available) whether water flowing from California into the State of Nevada meets Nevada’s water quality objectives.

  • to develop and implement (to the extent to which funding is available) tools to assess the biological integrity of the Region's streams and rivers based on instream benthic macroinvertebrate and periphyton assemblages.

Staff contact info and currently available reports, protocols, and data are summarized below. For more info, see also the SWRCB’s SWAMP website.

Contact Info for SWAMP staff at the Lahontan Region

Available
[ Reports ] [ Data ] [ Protocols for Bioassessment & Habitat Assessment ]

Reports

  • Comparison of the Performance of Different Bioassessment Methods: similar evaluations of biotic integrity from separate programs and procedures, by David B. Herbst and Erik L. Silldorff, June 2006

    Herbst & Silldorff – Methods Comparison (JNABS) - [ pdf - 252 KB ]

  • Performance of Different Bioassessment Methods from California: Side by Side Comparisons of Field, Laboratory and Analysis Procedures for Streams of the Eastern Sierra Nevada, by David B. Herbst and Erik L. Silldorff, November 2004

    Herbst & Silldorff – Methods Comparison (tech report) -  [ pdf - 640 KB ]

  • Macroinvertebrate Monitoring for the Bagley Valley Watershed Restoration Project on the Humboldt-Toiyabe National Forest: Final Report, by David B. Herbst and Jeffrey M. Kane, September 2004

    Herbst & Kane – Bagley Valley Restoration - [ pdf - 318 KB ]

  • Responses of Stream Channels, Riparian Habitat, and Aquatic Invertebrate Community Structure to Varied Livestock Grazing Exposure and Management in the West Walker River Watershed (Mono County, California), by David B. Herbst and Jeffrey M. Kane, May 2004.

    Herbst & Kane – West Walker Grazing - [ pdf - 2.06 MB ]

  • Use of Diatoms and Soft Algae as Indicators of Stream Abiotic Determinants in the Lahontan Basin, by Dean W. Blinn and David B. Herbst, December 2003

    Blinn & Herbst - Periphyton - [ pdf - 1.09 MB ]

  • Development of Biological Water Quality Targets for Assessment of Total Maximum Daily Load (TMDL) of Sediment in the Squaw Creek Watershed (Placer County, California), by David B. Herbst, April 2002

    Herbst – Squaw Creek Bioassessment - [ pdf - 641 KB ]

  • Investigation of Near Shore Turbidity at Lake Tahoe, by Kendrick Taylor, March 2002

    Taylor – Tahoe Turbidity - [ pdf - 1.48 MB ]

  • Biomonitoring on the Upper Truckee River Using Aquatic Macroinvertebrates: Watershed Restoration Baseline Data for 1998-2000, by David B. Herbst, December 2001

    Herbst – Upper Truckee River Bioassessment -  [ pdf - 921 KB ]

Data

Protocols for Bioassessment & Habitat Assessment

  • Protocols for SWAMP method (Feb 2007).  In February 2007, the SWAMP program published new protocols and guidance to be used for most ambient bioassessments of perennial wadeable streams in California. Those protocols (titled: Benthic Macroinvertebrates & Associated Data for CA Bioassessments – February 2007) are available at the State Water Board’s SWAMP website: http://www.waterboards.ca.gov/swamp/reports.html.

  • Other protocols.  It is important to note that, while the above protocols will be used in many situations, a variety of different protocols may be used or required in the Lahontan Region. For example, different taxonomic effort may be needed for some projects. Whenever bioassessment sampling is required by the Regional Water Board, the methods will be specified.

  • Protocols for UC-SNARL method.  For projects that rely on the UC-SNARL methodology (developed in the 1990s), the Quality Assurance Project Plan for that method remains available at this website.