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Overview
Basics
Basics
In October 2022 during a surveillance monitoring survey, a dense Eurasian watermilfoil infestation was observed by divers. In 2023, Tahoe RCD's contracted dive team installed barriers in June to control Eurasian watermilfoil. Barriers were removed in November 2023, and follow-up surveys and plant removal continued in 2024. Due to successful diver removal efforts and minimal detection of newly rooted Eurasian watermilfoil during surveillance visits in 2024, this project has reached post-implementation surveillance status. All future surveillance visits will be documented in Project # 01.03.01.0037 Lake-wide Surveillance and Site Assessments.
Post-Implementation
2022
2023
2025
$39,000
Mollie Hurt (mhurt@tahoercd.org)
01/22/2024
02/03/2026
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| Location Information | Location Notes |
|---|---|
Organizations
Organizations
EIP Details
EIP Basics
EIP Basics
01.03.01.0044 - Wovoka Aquatic Invasive Plant Control
Performance Measures
Expected Performance Measures
Expected Performance Measures
| Acres Treated for Invasive Species | [Invasive Species Type: Aquatic] | 1.17 | acres |
| Acres of Invasive Species Inventoried | [Invasive Species Type: Aquatic] | 3.1 | acres |
Reported Performance Measures
Reported Performance Measures
| Acres Treated for Invasive Species | |||||
|---|---|---|---|---|---|
| 2023 | 2024 | 2025 | Total | Units | |
| Invasive Species Type | |||||
| Aquatic | 2 | 0.2 | 0.02 | 2.22 | acres |
| Total | 2 | 0.2 | 0.02 | 2.22 | acres |
| Acres of Invasive Species Inventoried | |||||
|---|---|---|---|---|---|
| 2023 | 2024 | 2025 | Total | Units | |
| Invasive Species Type | |||||
| Aquatic | 4.5 | 3 | 7.5 | acres | |
| Total | 0 | 4.5 | 3 | 7.5 | acres |
Funding
Expected Funding
Expected Funding
$39,000
$39,000
$0
| Total | |||
|---|---|---|---|
| Lake Tahoe Restoration Act (TRPA) | $39,000 | $39,000 | $0 |
| Grand Total | $39,000 | $39,000 | $0 |
Reported Expenditures
Reported Expenditures
| Total | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
| Lake Tahoe Restoration Act | $39,000 | $6,500 | $9,500 | $23,000 | $0 |
| Grand Total | $39,000 | $6,500 | $9,500 | $23,000 | $0 |
Photos
Eurasian watermilfoil before aquatic invasive plant removal, south of Cave Rock, Nevada Sate Parks, NV, June 2023.
(Timing: Before) (~1,813 KB)
Eurasian watermilfoil covered with underwater barriers, south of Cave Rock, Nevada State Parks, NV, June 2023.
(Timing: During) (~1,924 KB)
Diver securing underwater barriers, covering Eurasian watermilfoil infestation, south of Cave Rock, Nevada State Parks, NV, June 2023.
(Timing: During) (~1,833 KB)
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
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Removal of invasive plants will make the nearshore habitat less suitable for reproduction and survival of non-native warm water fish (that exhibit lower reproductive success) when exposed to high levels of UV light), thereby restoring and enhancing native fish species habitat.
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Removal of aquatic invasive plants in the nearshore will contribute to providing a high quality recreation experience in the nearshore.
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It has been demonstrated that satellite populations increase the rate of expansion of an invasion and targeting such populations for reduction can act to reduce spread rates, thereby reducing aesthetic and visual impacts in the nearshore.
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Eurasian watermilfoil has been found to alter phosphorous cycling in the water column in the nearshore of Lake Tahoe, potentially leading to increased algae production. Benefits to water quality will also be realized due to the resultant decline in CDOM (colored dissolved organic material) levels, which would indicate a reduction in the amount of decompositon of organic matter.
Local and Regional Plans
Related Projects
Related Projects
No Related Projects set for this project.
External Links
No external links entered.
Notes
Notes
| 01/16/2026 4:26 PM | Mollie Hurt | All future surveillance visits will be documented in Project # 01.03.01.0037 Lake-wide Surveillance and Site Assessments. |