Reducing Combined Sewer Overflows in NYC – DEP’s Long Term Control Plan

Water Quality Planning Process for Local Waterways

On March 8, 2012, the New York State Department of Environmental Conservation (DEC) and DEP signed a groundbreaking agreement to reduce combined sewer overflows (CSOs) using a hybrid green and gray infrastructure approach. As part of this agreement, DEP will develop 10 waterbody-specific LTCPs plus 1 citywide LTCP to reduce CSOs and improve water quality in NYC’s waterbodies and waterways. The goal of each LTCP is to identify appropriate CSO controls necessary to achieve waterbody-specific water quality standards, consistent with the Federal CSO Policy and the water quality goals of the Clean Water Act (CWA).

Read the original Order on Consent executed between DEC and DEP:

• CSO Order on Consent

Read the 2012 amended Order on Consent:

• Amended CSO Order on Consent

Quarterly Reports

• Quarterly Progress Report – First Quarter 2012
• Quarterly Progress Report – Second Quarter 2012
• Quarterly Progress Report – Third Quarter 2012
• Quarterly Progress Report – Fourth Quarter 2012
• Quarterly Progress Report – First Quarter 2013
• Quarterly Progress Report – Second Quarter 2013
• Quarterly Progress Report – Third Quarter 2013
• Quarterly Progress Report – Fourth Quarter 2013

Learn more about the LTCP process and DEP’s CSO program:

• LTCP Frequently Asked Questions (FAQs)

Read the LTCP Goal Statement:

• LTCP Goal Statement

Alley Creek LTCP

• Learn more

Westchester Creek LTCP

• Learn more

Hutchinson River LTCP

• Learn more

LTCP Public Participation Plan

The LTCP Public Participation Plan describes the methods DEP will utilize to raise awareness about, foster understanding of and encourage input on the development of waterbody-specific and citywide LTCPs.

• LTCP Public Participation Plan

LTCP Citywide Meetings

Please visit the LTCP Citywide Meetings Homepage for meeting summaries, presentations, agendas, informational handouts and more!

LTCP Feedback

If you wish to submit comments or suggestions on the Long Term Control Plan, please email them to ltcp@dep.nyc.gov.

If you wish to sign up to receive LTCP Program announcements, please click here and include your name and contact information in the body of the email.

NYC Green Infrastructure Plan

In addition to the citywide projects for improving New York’s water supply, DEP is investing heavily in wastewater and harbor water infrastructure projects throughout the five boroughs:

• NYC Green Infrastructure Plan
• 2011 Green Infrastructure Plan Update

NYC Green Infrastructure Plan: 2011 Preliminary Pilot Monitoring Results

This report summarizes initial monitoring results and preliminary observations made in 2011 for a number of individual source controls.

• 2011 Preliminary Pilot Monitoring Results

NYC Waterbody Advisory Program

Click the below link to launch DEP’s real-time NYC Waterbody Advisory Program:

• Waterbody Advisory Program Application

Waterbody/Watershed Facility Plans

The following Waterbody/Watershed Facility Plans have been submitted to DEC

• Alley Creek
• Bronx River
• Coney Island Creek
• Flushing Bay
• Flushing Creek
• Gowanus Canal
• Jamaica Bay
• Newtown Creek
• Westchester Creek