Overview

Basics

Basics
Lake-wide monitoring of aquatic plants is needed to understand the existing conditions of locations and extent of plant populations. This information is used to strategize aquatic invasive plant control activities. Monitoring includes in situ dive transects and remote sensing techniques LiDAR and high resolution aerial imagery. This project also includes the development of a monitoring plan that will allow program managers to conduct future monitoring efforts consistently.

Implementation
2018
2018
2030
$840,000

Emily Frey (efrey@trpa.gov)
01/15/2019
02/08/2024
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Location Information Location Notes

Organizations

EIP Details

EIP Basics

04.01.02.0038 - Lake-wide Aquatic Plant (native and invasive) Monitoring

This project is on the EIP 5-year list.

Performance Measures

Expected Performance Measures

Expected Performance Measures
Acres of Invasive Species Inventoried [Invasive Species Type: Aquatic] acres

Reported Performance Measures

Reported Performance Measures
Acres of Invasive Species Inventoried
2018 2019 2020 2021 2022 2023 Total Units
Invasive Species Type
Aquatic 46 2 0 0 0 0 48 acres
Total 46 2 0 0 0 0 48 acres

Funding

Expected Funding

Expected Funding
$840,000
$690,000
$150,000

Total
California Lahontan Regional Water Quality Control Board (Lahontan) $205,000 $205,000 $0
Lake Tahoe License Plate Program (NDSL) $75,000 $75,000 $0
Lake Tahoe Restoration Act (TRPA) $66,000 $66,000 $0
SB630 Funds (Lahontan) $250,000 $250,000 $0
Section 108 U.S. Army Corps of Engineers (TRPA) (USACOE) $94,000 $94,000 $0
Grand Total $690,000 $690,000 $0

Reported Expenditures

Reported Expenditures
Total 2024 2023 2022 2021 2020 2019 2018
California Lahontan Regional Water Quality Control... $204,752 $0 $204,752 $0 $0 $0 $0 $0
Lake Tahoe License Plate Program $75,000 $0 $0 $0 $0 $0 $0 $75,000
Lake Tahoe Restoration Act $65,919 $0 $65,919 $0 $0 $0 $0 $0
SB630 Funds $250,000 $0 $0 $0 $0 $0 $46,430 $203,570
Section 108 U.S. Army Corps of Engineers (TRPA) $47,385 $0 $0 $0 $0 $0 $21,000 $26,385
Grand Total $643,056 $0 $270,671 $0 $0 $0 $67,430 $304,955

Photos

Photos

Other Details

Watersheds

No watersheds set for this project.

Threshold Categories

  • Monitoring data will help inform future control projects that will improve native fish habitat.
  • Monitoring data will help inform future control projects that will improve water quality.

Local and Regional Plans

No Local and Regional Plans set for this project.

Related Projects

Related Projects

No Related Projects set for this project.

External Links

No external links entered.

Notes

Notes
01/16/2024 11:56 AM Emily Frey In 2023, contractors completed underwater assessments of 107 transects throughout the nearshore of Lake Tahoe including tributaries, marinas, marshes, and embayements. This effort was a repeat of the work done in 2018 to provide a status update of aquatic species at these transects. Data was collected on aquatic species (plants, fish, invertebrates; both native and nonnative) observed along the transect.

In addition, crews conducted a comprehensive underwater survey of the Upper Truckee River (UTR) from the mouth to approximately 1.85 miles upstream, including the newly restored channels previously called the "Sailing Lagoon", for aquatic invasive plants. Aquatic invasive plants (both Eurasian watermilfoil and curlyleaf pondweed) were found in the UTR spanning 0.82 acres from the mouth to just north of the Cove East Trailhead/ Venice Drive East cul-de-sac (about 0.5 miles upstream from the mouth).

Furthermore, lake-wide aerial imagery was collected of the entire Lake nearshore. This was also done in 2018 and thus the two imagery sets can be compared for differences in plant beds size and location.
01/13/2020 3:04 PM Dennis Zabaglo Approximately 2 acres were inventoried in 2019 at the Taylor/Tallac marsh areas.