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Critical Coastal Areas Program


We also need to understand both natural forces and human activities in the MidCoastside. ... coastal processes, coastal species, and human uses of the land and ... – PowerPoint PPT presentation

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Title: Critical Coastal Areas Program

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Critical Coastal Areas Program
  • James Fitzgerald Marine Reserve Pilot Watershed
    Characterization and Assessment Project,
  • Phase I Update
  • San Mateo County
  • Kathleen Van Velsor, Association of Bay Area
  • In partnership with the San Francisco Estuary
  • James Fitzgerald Reserve Pilot CCA Workshop
    February 7, 2007

  • We encourage you to review the maps and posters
    for Phase I CCA.
  • Project consultants can assist with
  • This presentation will help you interpret the
    maps and posters.
  • Phase I II represent an opportunity to
    consider many factors influencing water decline.
  • Phase I and Phase II represent an opportunity to
    combine elements to improve water quality.

The Challenges During Ph. I
  • Identify and assess conditions in multiple
    MidCoast watersheds that contribute to pollution
    of coastal water bodies.
  • Identify measures and practices to reduce
    pollutant loadings.
  • Begin to evaluate the efficacy of existing
    methods used here.
  • Begin to develop tools and planning mechanisms
    that help government and other partners.

Assessing Land based Sources of Marine Pollution
and Coastal Influences
  • In order to identify pollutant load reduction
    opportunities we need to understand baseline
    conditions, and the origins, transport,
    interaction and fate of priority pollutants.
  • We also need to understand both natural forces
    and human activities in the MidCoastside.

An Interplay of Factors
  • There is a close interplay among coastal
    processes, coastal species, and human uses of the
    land and sea.
  • This means there are many variables to consider
    in the Phase I and Phase II watershed
    assessments, and during Action Plan development.

Maps/Poster Display
  • Todays maps and posters help illustrate coastal
    geology and waters, coastal land uses, coastal
    vegetation and natural hazards that may
    contribute to sedimentation, accumulations of
    pathogens, and nutrient problems in watersheds
    and near shore areas. Topics
  • Flooding creeks
  • Soil conditions
  • Terrain
  • Fire hazards and post-fire erosion potential
  • Landslide potential
  • Water conditions
  • Tsunamis inundation zones
  • Principal uses of the land
  • Projections of growth

Other Significant Coastal Influences (not
illustrated in maps)
  • Sea level rise
  • Offshore sediment transport
  • Near shore and offshore currents
  • Wind and wave action
  • Storm events
  • Surface water transport
  • Wetlands creation
  • Groundwater accumulation
  • Cliff retreat
  • Uplifting (coastal faults)

Review of Current Practices in FMR Critical
Coastal Area
  • Even with the best of intentions, human endeavors
    can present challenges to human and ecological
    health in the coastal environment.

  • Addition of hard surfaces to an otherwise
    permeable landscape in the MidCoastside
  • associated with
  • Roads/highways/parking
  • Homes/businesses
  • Aviation facilities
  • Storage areas
  • Areas that function like impermeable surfaces
    (e.g. plastic crop covers or building sites)
  • Cultivation and grading of the soil
  • Stabling of farm animals
  • Storm drainage and sewage disposal
  • Water channeling and impoundments
  • Dumpsites and other disposal areas
  • The creation of shoreline structures

Factors may combine to create declines in water
quality in FMR CCA
  • There is a strong relationship between sediments
    and pathogens, for example.
  • Runoff from a combination of urban and rural
    sources can yield turbidity in creeks, and other
  • Near shore circulation patterns and structures
    relate to the transport and fate of land-based
  • Water pumping and stream/groundwater conditions.
  • Clay soils can accelerate run-off -- adding to
    accelerated runoff from urban areas.

Factors Can Combine to Attenuate Pollutant
Effects in FMR CCA
  • Protecting riparian vegetation when building
    offers environmental and real estate values
  • Downspout programs can enhance urban design.
  • Creek and culvert cleanouts enhance property
    values/reduce risks.
  • Vegetated swales and catchments can slow floods
    while treating rural and urban runoff.
  • Mulching, crop cover and cultivation techniques
    reduce soil erosion in vulnerable areas.
  • Site grading in dry weather to avoid aggravating
    slide areas.
  • Siting critical pollutant control facilities,
    landfills away from tsunami and flood inundation
  • Zoning to protect streams and groundwater basins
    offers landscape level values, risk reduction and
    enhanced property values.

Map and Poster Acknowledgments
  • San Mateo County planning, parks, airports and
    public works agency staff
  • Coastal Commission staff
  • SF Estuary Institute staff
  • ABAG MTC staff
  • USGS publications
  • State Water Resources Control Board staff
  • GreenInfo Network consultants
  • Surfrider Foundation
  • Regional Water Quality Control Board
  • Resource Conservation District staff
  • NRCS staff