• Neighborhood Solutions for a Lake Wide Problem

  • As aquatic invasive species (AIS) have become an urgent issue in the Keys lagoons, it is also a Lake Tahoe-wide threat to water quality, the environment and the economy. The Tahoe Keys Property Owners Association (TKPOA) has been actively managing invasive plants for decades through an integrative, science-based approach with the goal of gaining control over the infestation and greatly reducing their spread. TKPOA is currently collaborating on the development of an environmental document (EIS/EIR) to find solutions to address the aquatic invasive plant issue.

    Timeline

     

    1980s:

    Infestation & Response

    • Native to Europe and Asia, Eurasian Watermilfoil was introduced to Lake Tahoe and the Tahoe Keys in the 1980s. No one knows how specifically, but it is likely from home aquarium dumping, or transported accidentally by boat.
    • Harvesting begins.

    1990s-2000s:

    Investigation & Harvesting

    • The harvesting and fragment control program continues and grows as the infestation grows.

    2011-2014:
    Research & Coordination

    • Initial collaboration with Tahoe Regional Planning Agency and Tahoe Resource Conservation District
    • Initial experiments with bottom barriers
    • Comprehensive literature research on control methods
    • Informational consultations with Lahontan Regional Water Quality Control Board, Lake
      Tahoe Aquatic Invasive Species Coordinating Committee and others
    • Waste Discharge Requirement (WDR) Permit issued in 2014, necessitating
      Integrated Management Plan and Nonpoint Source Water Quality Management Plan.

    2015-2016
    Research & Collaboration

    • Education and outreach to homeowners, landscaping companies and other land owners for Nonpoint Source Plan
    • Independent Scientific Panel review of Integrated Management Plan
    • Fragment Control method evaluation including new boats, boat backup station
    • Alternative methods research and field study
    • Water quality monitoring and study
    • Collaboration with stakeholders in planning process, including the Lake Tahoe Water
      Suppliers Association, League to Save Lake Tahoe, Sierra Club, Tahoe
      Resource Conservation District, Tahoe Regional Planning Agency, Lahontan
      Regional Water Quality Control Board

    2017-2020
    Implementation, demonstration & evaluation

    • Small-scale herbicide test followed by non-herbicide methods pending approval (2018-2020)
    • Non-herbicide combination methods evaluation pending funding (diver assisted pulling, broader bottom barrier use) 2017-2019
    • Long-term Integrated Management Plan (2020)
  • Latest News

    3 juin, 2019
    On June 5th from 1:00-2:00 and June 6th from 10:30-12:30 the Tahoe Keys Property Owners...
    Dear Homeowners, Good day. The harvesting season is right around the corner and I wanted to...
    Printed in Keys Breeze, October Edition Update on Plans to Combat Weeds in the TKPOA Lagoons ...
    You can read more of the Tahoe Regional Planning Agency's publication, Tahoe In Depth here.
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