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Lake Tahoe EIP

Tahoe Keys Lagoon Aquatic Weeds Control Methods Test Implementation

Project Number
01.03.01.0006
Action Priority
Prevent, Control, or Eradicate Aquatic Invasive Species
Implementers
Tahoe Keys Property Owners Association
Supporting Agencies
Tahoe Keys Property Owners Association, U.S. Fish and Wildlife Service
Primary Contact
Emily Justice (ejustice@trpa.gov)

Stage
Implementation
Duration
2017 - 2025
Total Project Cost
$12,000,000
Funding Request
$2,000,000
Aquatic Invasive Species Program Prevent, Control, or Eradicate Aquatic Invasive Species
The Control Methods Test was approved by TRPA and Lahontan in January 2022, and implementation of the full test- ultraviolet light, aquatic herbicides and other non-herbicidal methods- began in May of 2022. In addition to the test treatment methods, extensive monitoring is being conducted to follow herbicide degradation, water quality conditions, and efficacy of treatment methods.

Targeted Performance Measures

  • Acres of Habitat Restored or Enhanced
  • Acres Treated for Invasive Species

Threshold Categories

  • Fisheries
  • Water Quality
Tahoe Keys Lagoons infested with Eurasian Watermilfoil (Timing: Before) (~161 KB) Credit: TKPOA Tahoe Keys Lagoons infested with Eurasian Watermilfoil

Location

Targeted Funding

Secured Funding: Lake Tahoe Restoration Act (USFWS), $8,000,000

Secured Funding: Tahoe Keys Property Owners A... (TKPOA), $2,300,000

Targeted Funding: Lake Tahoe Restoration Act (USFWS), $1,000,000

Targeted Funding: Tahoe Keys Property Owners A... (TKPOA), $1,000,000

Photos

Before
Tahoe Keys Treatment and Monitoring locations (Timing: Before) (~204 KB) Credit: TKPOA
Tahoe Keys Treatment and Monitoring locations
During
Tahoe Keys CMT Test sites and monitoring locations (Timing: During) (~325 KB) Credit: TKPOA
Tahoe Keys CMT Test sites and monitoring locations
Year 2 (2023) Treatment Map - Tahoe Keys Control Method Test (Timing: During) (~194 KB) Credit: Sierra Ecosystem Associates
Year 2 (2023) Treatment Map - Tahoe Keys Control Method Test
Project Fact Sheet Data as of 07/07/2025