Aquatic Invasive Species Control Projects
The Tahoe RCD is committed to aquatic invasive species (AIS) control projects within Lake Tahoe along with our many public and private partners. Since 2005, we have worked with our partners to assess and prioritize AIS control projects. We have participated in over 20 projects to control the spread of Eurasian watermilfoil, curlyleaf pondweed, Asian clams and warm water fish.
The following are our current projects:
Tahoe RCD in collaboration with Inventive Resources, Inc., are embarking on a project using ultraviolet light in Lake Tahoe to kill aquatic invasive plants. This initiative is possible thanks to a grant for project implementation from the California Tahoe Conservancy and seed funding from the Tahoe Fund. New research shows that ultraviolet-C (UVC) light could be an effective method to eliminate aquatic invasive plants. UVC light works by damaging the DNA and cellular structure of invasive plant life that currently threaten the health of the Lake. While this technology needs to have further field testing to determine its full potential, Ultra-violet light could augment the currently available methods Tahoe RCD already uses especially in low water years, in tight spaces within marinas, or in river systems. Additional in-kind support for the project will be provided by the Lakeside Park Association. From our efforts in Emerald Bay, we know that invasive plant populations can be reduced, and with continued treatments and new tools, we will be better able to manage populations around the lake in the future. This technology is being brought to the forefront by John Paoluccio, President of Inventive Resources, Inc. A project using UV light to reduce aquatic plant infestations has been very successful in the laboratory. Our goal is that UV-C light will be a successful tool to control aquatic invasive plants in Tahoe and other waterways. This project started in June 2017 and will be completed by December 2018. The project consists of monitoring the effectiveness of the technology as well as any potential effects to water quality and biological resources. For more information, please contact Nicole at ncartwright@tahoercd.org, 530-543-1501 ext 111.
- Truckee River Eurasian Watermilfoil Removal

The map below shows the project area. Click on the green squares for aerial video.
- Asian Clam Control and Removal
Researchers actively monitored clam mortality and dissolved oxygen levels beneath the barriers and were hopeful to achieve a high percentage of clam mortality. In 2014, the barriers were moved to cover the additional 1/2 acre population. In Winter 2014, all rubber barriers were removed and alternative methods of control will be assessed.