Stream Gaging and Sediment Transport
Balance Hydrologics manages and maintains numerous stream gaging stations and rain gauges in the San Francisco Bay Area, using standard USGS protocols. These site-specific primary data sets form the basis for more complex evaluations and analysis. At many stations Balance staff measure bedload- and suspended-sediment discharge, which adds to the understanding of the sediment process at work in the watershed. Balance performs both high-flow storm visits and periodic low-flow site visits to perform observations and measurements that are used to calibrate the automatically collected data.

The majority of the stations are telemetered for real-time information.


Presentations and Publications:
  • Sediment Yield Variations in the Northern Santa Lucia Mountains (pdf)

  • Bear Creek Water Quality Study 1999-2002, Woodside, San Mateo County, California Poster (pdf)

  • Evaluating sediment discharge in unregulated streams tributary to San Francisco and Suisun Bays (pdf)


  • Selected Reports:
  • Sedimentation and channel dynamics of the Searsville Lake Watershed and Jasper Ridge Preserve, San Mateo Co (pdf)

  • Sediment-transport reconnaissance of the Pilarcitos Creek Watershed, San Mateo Co, WY 2000 (pdf)



  • Selected Project Summaries
    El Corte de Madera Creek Open Space Preserve
    Sediment assessment
    San Mateo County, CA
    (pdf)
    San Geronimo Creek
    Flow/sediment monitoring for fish habitat
    Marin County, CA
    (pdf)
    Searsville Lake
    Flow/sediment monitoring; lake bathymetry
    San Mateo County, CA
    (pdf)
    Thompson Creek sediment study
    Flow/sediment monitoring, hydromodification analysis
    San Jose, CA
    (pdf)
    Tierra Rejada vernal pool
    Rainfall/runoff model; monitoring of water levels and quality
    Ventura County, CA
    (pdf)