Citywide & East River/Open Water - DEP

Environmental Protection


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Long-Term Control Plans

Harbor Water Quality

Trash in Waterways

Waterbody Advisories


Citywide & East River/Open Waters

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Long Term Control Plan

The Citywide Long Term Control Plan (LTCP) will encompass the majority of New York Harbor including the Hudson River, Harlem River, Upper New York Bay, Lower New York Bay, the East River, and the western portion of Long Island Sound. According to the city’s most recent Harbor Survey Report, the Harbor is cleaner now than at any time in the last 100 years. Continued improvements to the city’s 14 wastewater treatmentplants, and ongoing investments have resulted in an 80% reduction in combined sewer overflows since the mid-1980s.

The Citywide & East River/Open Waters LTCP was submitted to the New York State Department of Environmental Conservation on September 30, 2020.

Download the Citywide & East River/Open Waters LTCP Cover Letter

Download the Citywide & East River/Open Waters LTCP Executive Summary

Download the Citywide & East River/Open Waters LTCP

For more information, email ltcp@dep.nyc.gov and visit our LTCP Program webpage.

Public Meetings

Check DEP’s Eventbrite page for updates on future public meetings.

Citywide/Open Waters Recommended Plan Public Meeting

January 29, 2020 – The City University of New York School of Law, Queens

Download the Citywide/Open Waters Recommended Plan Public Meeting Presentation

View the meeting on Youtube

Lower East River, Kill van Kull, Arthur Kill, New York Bay Alternatives Public Meeting

November 6, 2019 – Staten Island Borough Hall

Download the Lower East River, Kill van Kull, Arthur Kill, New York Bay Alternatives Meeting Presentation

Citywide & East River/Open Waters Retained Alternatives Public Meeting

October 15, 2019 – The City University of New York School of Law—Queens

Download the Citywide Open Waters Retained Alternatives Meeting Presentation

Harlem River/Hudson River Alternatives Public Meeting

October 2, 2019 – Van Cortlandt Park

Download the LTCP Hudson/Harlem River Focused Alternatives Meeting Presentation

Citywide LTCP Update Meeting

April 16, 2019 – The City University of New York School of Law—Queens

Download the Citywide LTCP Update Meeting Presentation

Download the 2019 Citywide/Open Waters LTCP Stakeholder Summary of Meeting and Public Comments

Download the Citywide/Open Waters Public Comment Response Summary LTCP

East River focused Kickoff Meeting

May 10, 2018 – Newtown Creek Visitor Center

Download the East River Kickoff Meeting Presentation

Lower East River, Kill van Kull, Arthur Kill, New York Bay Kickoff Meeting

March 27, 2018 – St. John’s University, Staten Island

Download the New York Bay Kickoff Meeting Presentation

Harlem River/Hudson River Focused Kickoff Meeting

January 31, 2018 – Manhattan College, Bronx

Download the Harlem River/Hudson River Focused Kickoff Meeting Presentation

View the meeting on YouTube

Sampling Program Data

Download the data that was collected during the Citywide & East River/Open Water Sampling Program in 2016 and 2017.

Download the LTCP Sampling Program Map

Download the Harlem River Data

Download the Hudson River Data

Download the Long Island Sound and East River Data

Download the Lower East River, Kill Van Kull, New York Bay

Download the Citywide LTCP Mosaics

Additional Materials

Download the Citywide LTCP Monthly Update

Download the Citywide Open Waters Recommended Plan Summary

Download the Response to Comments Summary, January 2020

Download the Citywide/Open Waters Appendix D Supplemental Documentation

Due to the outbreak of COVID-19 and associated declarations of state and national emergencies, DEP requested an additional extension to complete the Citywide LTCP:

Download the LTCP Extension Request – May 28, 2020

Download the Notice of Force Majuere and Request for Modification to Open Waters/Citywide LTCP

Download the DEC Approval Letter for the Citywide Milestone Extension