The New York State Department of Environmental Conservation (DEC), in collaboration with the New York State Department of Health (DOH) and Cattaraugus County officials, is investigating a potential organic waste discharge into Ischua Creek in Franklinville. This incident has resulted in a significant die-off of fish and wildlife.
DEC Commissioner Amanda Lefton stated, “DEC is working with State and local partners to lead a comprehensive investigation into the die-off of multiple species in Ischua Creek and any other potential environmental impacts. We are advising the public not to fish or recreate in the affected area while DEC takes all actions necessary to ensure protection of public health and the environment.”
State Health Commissioner Dr. James McDonald said, “The Department of Health is closely coordinating with DEC and local partners to monitor this potential discharge in Ischua Creek. While there has been a serious impact to fish and wildlife, at this time there is no indication of any effect on public drinking water supplies. We will continue to monitor these developments and provide guidance when more information is available as protecting the health of New Yorkers remains our top priority.”
On August 26, 2025, DEC received reports regarding a large fish kill in Ischua Creek at Franklinville. Field teams from DEC responded promptly by monitoring water quality downstream from Franklinville and assessing effects on aquatic life. Staff observed several types of dead aquatic species within the affected section.
Currently, there are no indications that public drinking water supplies have been impacted by the event. Local water systems have been informed about the situation and are conducting precautionary monitoring. Agencies are also evaluating any possible effects on private wells located downstream.
Officials advise residents to avoid all contact with Ischua Creek downstream from Franklinville until further notice, including activities such as fishing, boating, swimming, or consuming fish from this section.
The public is encouraged to report unusual observations involving fish or wildlife to DEC Region 9 Fisheries at fwfish9@dec.ny.gov. Residents should avoid handling dead wildlife directly; if removal is needed, use disposable gloves, masks, eye protection, tools like shovels for handling carcasses, and wash hands and clothing thoroughly afterward. More animal health information can be found at https://dec.ny.gov/nature/wildlife-health/animal-diseases.
DEC will supervise corrective actions as required once more information becomes available through their ongoing investigation.
