Eradication Project in Genoa

NOTE:  Due to a miscommunication on the part of the certified pesticide applicator, the chemical Endothall was applied August 15, 2019, at Don’s Marina instead of the August 22nd as was planned. Please note that people should not swim in the treatment and/or notification area until after noon August 16, 2019. This is to allow for adequate mixing of the product in the water. There are no restrictions on fishing, boating, or using the water for irrigation. Additionally, there are no restrictions for use of the treated water for watering animals or livestock.

Water Samples will be taken on August 16 and August 17, 2019.   Results will be posted on the Sampling Results page as soon as they are received.  We anticipate results by August 23, 2019.

For questions please contact the Cayuga County Health Department at 315-253-1560

In the fall of 2018, Hydrilla was spotted offshore of Don’s Marina in King Ferry by the Finger Lakes Partnership for Regional Invasive Species Management (PRISM) during a kayak-based survey of Cayuga Lake’s entire shoreline.  The marina was dredged during the winter months to try to remove all the Hydrilla.  Subsequently, weekly monitoring was carried out by staff of the Finger Lakes PRISM and they found a small patch of Hydrilla plants in that area this spring.  During the summer of 2019, the U.S. Army Corps of Engineers (USACE), Buffalo District, will begin a project aimed toward the eradication of hydrilla from this portion of Cayuga Lake.  

Herbicides

National and local experts on Hydrilla agree that the use of herbicides is the best method to achieve eradication of Hydrilla. The USACE will apply endothall in a granular form (trade name Aquathol Super K) in an area approximately one acre in size offshore of King Ferry.  A map showing the treatment area can be found here.

Information regarding the application of endothall can be found in an FAQ document here.         

It is anticipated that the treatment will take place on August 22, 2019. The herbicide will be applied by a New York State licensed professional applicator to the treatment area.

Water Restrictions

People should not swim in the treatment and/or notification area (the area one half mile north of and one half mile south of Dan's Marina) until the day after the endothall is applied. This is to allow for adequate mixing of the product in the water. There are no restrictions on fishing, boating, or using the water for irrigation. Additionally, there are no restrictions for use of the treated water for watering animals or livestock.  

There is one public water system intake in the notification area.  Although no impacts are anticipated, the users of this system, Atwater Association, will be advised, as a precautionary measure, not to drink the water during and after the chemical application until samples collected by the Army Corps in consultation with the Health Department show that the pesticide is not detected in their drinking water.  This treatment is not expected to impact public water system intakes in other parts of the lake. 

Individuals who draw water from the lake should never drink untreated lake water.

Water Monitoring

The Army Corps will collect samples in consultation with the Health Department after the application until the samples show the pesticide is not detected in the area. Sampling locations can be found here.

Sample results will be posted once they are received.  Samples will be collected the same day as treatment and the following two days.