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Onondaga County Executive Opens New Deep Water Fishing Pier at Onondaga Lake

Onondaga County Executive Opens New Deep Water Fishing Pier at Onondaga Lake

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Onondaga Lake Conservation Corps

To learn more about the Onondaga Lake Conservation Corps or participate in future activities, please contact Chris Lajewski at or call 315-365-3588.

Onondaga Lake Dredging and Capping Completed

Community’s Vision of a Clean Onondaga Lake is Becoming a Reality

Honeywell has completed the dredging and capping of Onondaga Lake. The result of more than two decades and millions of hours of intensive effort, the project was completed through an unwavering focus on sound science, technical excellence, community engagement, sustainable practices, and a commitment to health and safety. Habitat restoration, a major focus of the cleanup, continues in 2017, as does Honeywell’s commitment to encouraging community volunteers to become environmental stewards.

Watch a video about Onondaga Lake

Watch a video about the impact of the Onondaga Lake cleanup.

“Onondaga Lake is becoming a source of pride and optimism for the community and an economic driver for the region thanks to the extraordinary efforts of state and federal regulators, Honeywell, Onondaga County, elected officials, educational institutions, and the community,” said Kate Adams, Honeywell Senior Vice President and General Counsel. “We are incredibly proud of the team that accomplished this successful project and grateful to the community for its support and engagement.”

Working under the supervision of the New York State Department of Environmental Conservation (DEC) and the U.S. Environmental Protection Agency (EPA), Honeywell worked with national and local experts, including the State University of New York College of Environmental Science and Forestry (SUNY-ESF), Syracuse University and Upstate Freshwater Institute. About 500 Central New York workers have been an integral part of the cleanup, providing expertise, essential resources, dedication, and hard work.

“The completion of this project to revitalize Onondaga Lake marks a major milestone for Central New York that will improve the quality of life for residents, and opens up additional opportunities for tourism, outdoor recreation, and economic development for the entire region,” New York State Governor Andrew M. Cuomo said. “This work will help ensure that the lake remains a clean, viable natural resource for generations to come.”

DEC Commissioner Basil Seggos said, “Onondaga Lake and its shores are undergoing major revitalization, helping return the lake to its former glory. A former source of shame, the lake is coming back as a source of pride for the community. Water quality is improving, aquatic populations are rebounding, and people are experiencing the lake in ways that haven’t been possible in generations. In the past, Onondaga Lake was often called the most polluted lake in the nation, but today, it is the most resilient.”

Onondaga County Executive Joanie Mahoney said, “This is a moment to celebrate Onondaga Lake and all of those committed to its restoration. Together, Governor Cuomo, the state Department of Environmental Conservation, U.S. Fish and Wildlife Service, Honeywell and Onondaga County are helping restore Onondaga Lake and its shores for the benefit of generations to come.”

In November 2015, Honeywell received Audubon New York’s Thomas W. Keesee, Jr. Conservation Award for its leadership in the cleanup, “one of the most ambitious environmental reclamation projects in the United States.”

Substantial Progress Achieved, Best Water Quality in More Than 100 Years

  • Lake dredging was finished in November 2014, a year ahead of schedule.
  • More than 3 million cubic yards of material consisting primarily of sand, activated carbon, and stone was used to cap 475 acres of the lake bottom, providing a new habitat layer.
  • To date, 74 acres of wetlands have been created or enhanced and nearly 600,000 native plants, trees, and shrubs now provide diverse habitat for more than 230 wildlife species.
  • Geddes Brook, LCP wetlands, and Nine Mile Creek are remediated and restored, creating a green corridor from the lake to upland areas.
  • According to the New York State Department of Health, water quality in the northern two-thirds of Onondaga Lake has achieved public health criteria for swimming.
  • DEC has documented 65 species of fish, up from nine to 12 counted in the 1970s.
  • The aquatic plant community has expanded from less than 12 percent of shallow-water lake areas to about 80 percent, according to SUNY-ESF.
  • Upstate Freshwater Institute has confirmed that methylmercury (the form of mercury that accumulates in fish and organisms) in deep-water portions has decreased 98 percent since 2009.
  • EPA, in its five-year report on Onondaga Lake, states that the cleanup is progressing as expected:
    • Concentrations of dissolved mercury are significantly lower in surface water samples.
    • Levels of methylmercury have declined dramatically in both lake water and zooplankton. The decline is expected to contribute to lower mercury concentrations in fish.
    • Natural recovery in the lake is progressing faster than predicted.

The cleanup, together with upgrades made by Onondaga County to its wastewater treatment plant and the county’s Save the Rain program, has resulted in the best water quality in more than 100 years.

Community’s Vision and Dialogue Key to Sustainable Outcomes

The Central New York community has played a key role in the efforts to clean up Onondaga Lake.

  • More than 1,200 community meetings, presentations, and tours have been held since 2004.
  • The Onondaga Lake Community Participation Working Group has met to foster community input and provide ways for the public to receive information.
  • Designed and built by Honeywell, the Onondaga Lake Visitors Center has hosted more than 14,000 people, providing the public with access to the significant work taking place.
  • More than 650 community members have joined the Onondaga Lake Conservation Corps, which was founded in 2012 and seeks to inspire environmental stewardship through a hands-on, experience-based program. Citizens and organizations have the opportunity to participate in activities that help restore and sustain Onondaga Lake and its value as an Important Bird Area.
  • In 2015, a symbolic lake swim drew hundreds of community members.
  • Thousands of people attended the inaugural Onondaga Cup and Lakefest in July 2016, including Governor Cuomo.

View a fact sheet about the end of dredging and capping.

Watch videos and view photographs of the Onondaga Lake cleanup.

Read news about the Onondaga Lake cleanup.

Individuals interested in more information on the Onondaga Lake cleanup can contact Honeywell at 315-552-9784 or visit