2025 Water Quality Report Review

April 08, 2026| Environment

By: Holly Odgers

The 2025 Lake Hopatcong Water Quality Report, prepared by Princeton Hydro and funded by the Lake Hopatcong Commission, is now available. Ongoing monitoring of the lake, which dates back to the 1980s, remains an important tool for understanding overall lake health. This long-term data helps track changes in water quality, identify trends, and evaluate the effectiveness of restoration and management efforts over time.

Dr. Fred Lubnow, Senior Technical Director of Ecological Services at Princeton Hydro, recently presented a detailed overview of the 2025 report over a live Zoom. In the recording below, he reviews key findings, highlights water quality projects completed over the past year, and answers questions from attendees. Due to technical difficulties, the beginning of the presentation was not recorded. The video begins at the start of the data analysis from the 2025 report.

Princeton Hydro provides environmental and engineering consulting services for water quality monitoring, HAB mitigation, and stormwater management projects at Lake Hopatcong. Dr. Lubnow’s areas of expertise include aquatic and watershed management, restoration ecology, community and ecosystem ecology, and the prevention, identification, and management of Harmful Algal Blooms. As Senior Technical Director of Ecological Services at Princeton Hydro, he manages a variety of lake and watershed restoration projects.

For previous water quality reports, click HERE.