Actual acreage requested and treated is shown on the table here. In 2023 for example, 260 acres were requested for Aquathol K, and of that, 126 acres were actually approved by the DEC and subsequently treated. Similarly, for ProcellaCOR, 362 acres were requested, and of that, only 115 acres were approved and actually treated. The acreage requested is targeted based on analysis of the fall aquatic plant survey done by NCSU, and the recommendations of our Lake Manager.
2025
- 2025 Product Labels
- Proposed 2025 CLP treatment locations map
- Proposed 2025 EWM treatment locations map
- Pemitted 2025 CLP treatment locations map
- TREATED 4/28-29/2025 Chaut 2025 CLP AS TREATED map
- TREATED 6/5/2025 Chaut EWM Phase 1 TREATED AREAS
- Second Letter of Notification for Phase II EWM 5/26/2025 2nd LON 052125
- Third Letter of Notification for SSW Chautauqua 2025 SSW LON 061025
2024
2023
2022
2021
- Notifications
- Maps
6/5 Update: Phase I Treatment for Eurasian Watermilfoil (172 acres) was completed on 6/5/2025. See map here for exact locations. Application for additional areas is in progress.
5/1 Update: Treatment for curly-leaf pondweed completed 4/28-29
Of the 450 acres permitted, DEC same-day confirmation of target plant allowed for 286.5 acres to be treated for curly-leaf pondweed.
New for 2025, the treatment for CLP will change from Aquathol K to Clearcast, which is a selective systemic herbicide that offers increased protection for native plants, slows the nutrient release from decay of targeted species, and is expected to achieve longer lasting results. It has a very favorable environmental profile and is practically non-toxic to animals, birds, fish & aquatic invertebrates.