On February 9th 2024, The New Milford Fire Department and their Hazmat team responded to prospect Park to a reported green substance in the water along with marine life deceased in the water. Fish and wildlife team was called in to assist. New Milford FD Hazmat team along with the Bergen County Hazmat teams were onsite for over 3 hours. The Bergen County hazmat team found the substance to be non-toxic, an as per the Department of the environmental protection. The brook was flushed so the product could be diluted.