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RiverCOG partners update Hydrilla treatments and flag heavy water‑chestnut infestations at Post Cove
Summary
RiverCOG's aquatic‑invasives update reported recent Hydrilla treatments and dye studies, noted potential for additional Army Corps work pending funding and permitting, and cautioned that water chestnut remains heavy in parts of the Lower Connecticut River, especially Post Cove in Deep River.
Margo Burns provided a multi‑point update on aquatic invasive species in the Lower Connecticut River watershed. She said two Hydrilla treatments occurred at Portland Boat Works and that the Army Corps has completed dye‑study work in Chester Creek and Hamburg Cove with phase‑two treatments planned. Burns said leftover funding from last year has helped this season but that continued funding is uncertain.
Burns described water chestnut as widespread across the Lower River but manageable at most sites; she singled out Post Cove in Deep River as an area with particularly heavy infestation where additional treatment options and permitting would be required. Burns encouraged municipal staff and volunteers to attend an interagency watershed meeting on Sept. 25 to coordinate a multi‑state response.
She also mentioned volunteer contributions and partnerships with the Connecticut River Conservancy and asked members to spread the word about upcoming workshops and stewardship opportunities.
