Water
On This Page:
- Links to water webpages
- What's new in the Division of Water
- Division of Water Mission
- Division of Water Bureaus
New York's abundant rivers, streams, lakes and coastal waters are used for recreation, fishing, tourism, agriculture and manufacturing. Dams and other infrastructure help us manage our waters.
Though plentiful, the water resources of the state are threatened by chemical contaminants and other pollutants from a wide range of sources.
The Division of Water provides various programs that track the quality of the waters, identify and investigate sources of pollution, control these sources and develop strategies to address water quality threats. DEC programs regulate and provide guidance on water supply withdrawal. DEC also manages floodplains and coastal areas to reduce flood risk to protect New Yorkers from coastal and inland flooding.
Water Webpages
In addition to the pages listed in the left column, these web pages lead to information about water resources in New York State:
- Water Quality Monitoring & Assessment: monitoring, assessment, impaired waters, Waterbody Inventory/Priority Waterbodies List, harmful algal blooms (HABs), total maximum daily loads (TMDLs)
- Wastewater Treatment Resources: asset management, wastewater treatment plant operation
- Water Quality Management: source water protection, standards and classifications, nonpoint source pollution, Nine Element Watershed Management Plans, lawn fertilizer
- Wastewater, Stormwater & Water Withdrawal Permits: State Pollutant Discharge Elimination System Permits (municipal wastewater permits, stormwater permits, industrial permits, CAFO permits, Vessel General Permit), water withdrawal permits
- Water Withdrawal, Conservation & Drought: water withdrawal permits and reporting, well contractor program, droughts
- Dam Safety, Coastal & Flood Protection: dam safety, coastal erosion management and permits, flood protection, floodplain management
- Watersheds and Watershed Programs
- Grants
- Technical and Operational Guidance Series (TOGS): information on program delegation, special assignments, and explanation and technical detail for day-to-day operation of the Division of Water responsibilities
What's New in the Division of Water?
This section is updated weekly and topics are typically posted here for about 30 days. If a topic has a specific end date (such as a public comment period or an event), the description is removed after the end date.
Governor Cuomo Announces Launch of Innovative Pilot Project to Combat Harmful Algal Blooms
Governor Andrew M. Cuomo has announced the launch of an innovative new pilot project to combat harmful algal blooms (HABs) and return clean water to the Village of Southampton's Agawam Lake. The pilot is directed by DEC and the Office of General Services, in partnership with the Village of Southampton. The pilot project is part of the State's $82 million initiative to study, respond to and prevent HABs in New York waterbodies. If the pilot in Agawam Lake proves successful, it will be applied statewide.
View Governor Cuomo's October 3 press release (leaves DEC website) for more information.
Public Comment Period for the Draft SPDES Multi-Sector General Permit for Stormwater Discharges Associated with Industrial Activity
DEC has issued a draft permit for modifications to the SPDES Multi-Sector General Permit (MSGP) for Stormwater Discharges Associated with Industrial Activity (GP-0-17-004).
Copies of the draft permit and draft fact sheet describing the draft changes are available on DEC's MSGP web page.
For more information, including how to comment, view the September 25 Environmental Notice Bulletin.
NOAA Marine Debris Grant Program
Funding is available through the National Oceanic and Atmospheric (NOAA) Marine Debris Program to prevent the introduction of marine debris into the marine and coastal environment (including the Great Lakes). Letters of intent are requested by November 5, 2019 and competitive applications will be asked to submit a full proposal. For more information, visit NOAA's Marine Debris Program web page (leaves DEC website).
New Well Drilled as Part of Strategic Monitoring of Long Island Groundwater
At a regional Water Quality Summit hosted by Suffolk County on September 17, DEC Commissioner Basil Seggos announced the drilling of a new monitoring well in Freeport, Nassau County. The monitoring well is the first of 25 being drilled throughout the region to support the comprehensive groundwater study along Long Island's sole source aquifer. DEC was directed by Governor Andrew M. Cuomo to install the network of wells and is working in partnership with the United States Geological Survey (USGS) to develop a groundwater model that will help Long Island government officials and water district personnel to make crucial, long-term decisions relating to the preservation of Long Island's sole source aquifer.
This study aligns with the goals of the Long Island Nitrogen Action Plan, which is a multiyear initiative to reduce nitrogen in Long Island's surface and ground waters by DEC, the Long Island Commission on Aquifer Protection, Suffolk County Comprehensive Water Resources Management Plan, and other partners.
Harmful Algal Bloom Notifications
Visit NYHABS, DEC's HABs notification map, to view locations of current freshwater HABs in New York State. Each yellow dot on the map represents a HAB reported in the past two weeks. Click on a dot for more information, including the date it was reported, the waterbody name, and pictures. Click on the arrow at the bottom of the screen to view a list of reported HABs.
Know it. Avoid it. Report it.
If you see a HAB, please use the new reporting form to submit a report to NYHABS.
Because waterbodies may have HABs that have not been reported to DEC, we recommend avoiding contact with floating mats, scums and discolored water.
If you, your family, or pet has been in contact with a HAB, please rinse with clean water and report any symptoms to your local health department.
Division of Water Mission
The Mission of the Division of Water is to protect and conserve the water resources of New York State. This mission is accomplished through a wide range of programs and activities. Some of these are statewide in their scope and apply to all parts of the state. Other efforts are targeted to address water quality and quantity issues in specific regions of the state, focusing on waterbodies or watersheds where these issues are of particular concern. Still other programs target specific contaminants (e.g., mercury) or sources (e.g., stormwater runoff) or impacts (e.g., acid rain) of pollution.
Division of Water Bureaus
Bureau of Flood Protection and Dam Safety
The Bureau of Flood Protection and Dam Safety cooperates with federal, state, regional, and local partners to protect lives and property from floods, coastal erosion and dam failures through floodplain management and both structural and non-structural means.
- Coastal Erosion and Floodplain Management Section - The Coastal Erosion branch of this section works to reduce coastal erosion and storm damage to protect lives, natural resources, and properties through structural and non-structural means. The Floodplain Management branch is responsible for reducing flood risk to life and property through proper management of activities including development in flood hazard areas, and review and development of revised flood maps.
- Dam Safety Section - Responsible for reviewing repairs and modifications to dams, and assuring that dam owners operate and maintain dams in a safe condition through inspections, technical reviews, enforcement, and emergency planning.
- Flood Control Projects Section - Responsible for reducing flood risk to life and property through construction, operation and maintenance of flood control facilities.
Bureau of Water Assessment Management
The mission of the Bureau of Water Assessment Management is to monitor the waters of the state, review data and information to evaluate these waters, and report on the quality and the ability of these waters to support uses. The Bureau also conducts research to better define the nature of pollutants, sources and impacts on waters and their uses, and provides support for the development of management strategies to enhance and protect these waters.
- Streams Monitoring and Assessment Section
- Lakes Monitoring and Assessment Section
- Standards and Analytical Support Section
- Water Assessment and Implementation Section
Bureau of Water Permits
- Central Permits Section - Covers SPDES permits in DEC Region 4; SPDES General Permits for Concentrated Animal Feeding Operations (CAFOs) (ECL GP-0-16-001 / CWA GP-0-19-001), Private, Commercial, or Institutional (PCI) Facilities discharging 1,000 to 10,000 gallons per day of sanitary waste to groundwater (GP-0-15-001), Pesticide Applications to Surface Waters of New York State (GP-0-16-005), and Vessel Discharges for most commercial vessels greater than 79 feet in length that operate in US waters; NYS Design Standards For Intermediate Sized Wastewater Treatment Systems; Drinking Water Source Protection Program (DWSP2).
- South Permits Section - Covers SPDES permits in DEC Region 1; SPDES Phase II General Permits for Stormwater Discharges from Construction Activity (GP-0-15-002), Municipal Separate Storm Sewer Systems (MS4s) (GP-0-15-003); Multi Sector General Permit (MSGP) for Stormwater Discharges associated with Industrial Activity except construction activity (GP-0-17-004); DEC stormwater training; Combined Sewer Overflows (CSOs).
- West Permits Section - Covers SPDES permits in DEC Regions 2,3,8, and 9; asset management; disinfection.
- North Permits Section - Covers SPDES permits in DEC Regions 5,6, and 7; Environmental Benefit Permit Strategy (EBPS).
Bureau of Water Compliance
- State Pollution Discharge Elimination System (SPDES) Compliance Information Section - Covers SPDES and facility information; Discharge Monitoring Reports (DMRs); MS4 General Permit compliance; Multi-Sector General Permit (MSGP) compliance; wastewater treatment plant operator certification.
- Upstate Compliance Assurance Section - Covers DEC Regions 4 - 9; SPDES/Water Integrated Compliance Strategy System (WICSS) compliance; enforcement coordination; compliance liaison with U.S. Environmental Protection Agency (EPA)
- Metropolitan Compliance Assurance Section - Covers DEC Regions 1 - 3; New York City wastewater treatment facility compliance and enforcement; compliance liaison with EPA
- Fiscal Planning and Management Section - Covers EPA Core Grants (PPG, 604b); EPA Wastershed Grants (Chesapeake Bay, Lake Champlain, Great Lakes, Long Island Sound); FEMA Grants; USGS Contracts; State Assistance and Service Contracts, MOU's, Cooperative Agreements; Attachment As; Budget & Spending Plan Management; Purchasing/Procurement Equipment - Contractual Services
Bureau of Water Resource Management
The Bureau of Water Resource Management works to protect, manage, and conserve New York State's groundwater and surface water supply sources, develop management strategies to enhance and protect these waters, and protect both the groundwater and surface water quality in the New York City Watershed and other major watersheds. The Bureau's work includes programs for water withdrawal permitting, which includes analysis and approval of aquifer (pumping) tests and reservoir capacity; drought management; Great Lakes water withdrawal registration; statewide annual water withdrawal reporting; groundwater; interstate water supply partnerships; reservoir releases; water conservation; and water well drillers registration. The Bureau provides geotechnical assistance to local, state, federal, and industrial/commercial entities, and has partnered with the U.S. Geological Survey (USGS) for over 35 years to conduct a cooperative statewide aquifer mapping program. The Bureau also manages DEC's water quality and watershed protection programs for the New York City water supply system, including Federal Safe Drinking Water Act grants, compliance for SPDES permits within the watershed, and technical assistance and training for wastewater treatment facility operators within the watershed. The Bureau works with stakeholders and partners to improve water quality, provides funding for Water Quality Improvement Projects, and conducts outreach and communication activities. The Bureau's responsibilities also include developing and managing a geographic information system (GIS) that provides information and data about New York State's waters.
- Water Quantity Management Section
- Watershed Section A
- Watershed Section B
- Watershed Section C
More about Water:
- Facts about New York State Waters - Information about the waters of New York State.
- Public Review Documents - This page provides documents and tools available for public review.
- Water Quality Monitoring & Assessment - Programs to monitor the waters of the state, evaluate data and information against standards and criteria to assess the quality of these waters, conduct research to better define the nature of pollutants, sources and impacts on waters and their uses, and develop management strategies to enhance and protect these waters.
- Wastewater Treatment Resources - Links to DEC programs that address water quality concerns and issues.
- Sewage Pollution Right to Know - Information about the Sewage Pollution Right to Know Law.
- Combined Sewer Overflow (CSO) - Combined sewer systems are sewers that are designed to collect storm water runoff, domestic sewage, and industrial wastewater in the same pipe.
- Sanitary Sewer Overflow (SSO) - Information about sanitary sewer overflows, including, common causes and abatement strategies.
- Drugs in New York's Waters - Don't flush unwanted medications - dispose of them safely and take advantage of DEC's pilot pharmaceutical take-back program drop boxes near you.
- Operation and Maintenance of Sewer Collection Systems - Information on sewers and sewer use.
- Stormwater - This page provides information about storm water related issues.
- Water Quality Management - DEC programs that manage sources of water pollution, reduce specific pollutants, and improve and protect water quality.
- Green Infrastructure for Wet Weather - Information about using green infrastructure practices to manage stormwater.
- SPDES Compliance & Enforcement - Recently Revised TOGS 1.4.2 on SPDES Compliance and Enforcement and Responsiveness Summary to Public comments.
- Pesticide General Permit - Pesticide General Permit GP-0-16-005, is required and authorizes coverage for point source discharges resulting from any application of a registered biological or chemical pesticide labeled for aquatic uses directly to, in, or over a surface water of New York. This supplements requirements in Article 15 and Article 24 permits.
- DMR Manual for Submitting and Completing the Discharge Monitoring Report - Discharge Monitoring Report guidance and frequently asked questions.
