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 webpages lead to information about water resources in New York State:
- Water Quality Monitoring and 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, and 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, and Drought: water withdrawal permits and reporting, well contractor program, droughts
- Dam Safety, Coastal, and 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.
Five Regions Now on State Drought Watch List
DEC has announced that the State has expanded its Drought Watch to the Southern Tier drought region, which includes Cattaraugus, Alleghany, Steuben, and Chemung counties. A Drought Watch issued by DEC in July remains in effect for Long Island, Upper Hudson/Mohawk, Adirondacks, and Great Lakes/St. Lawrence regions. The drought watch status for these regions was issued after consulsting with experts from the State Drought Management Task Force. There are no statewide mandatory water use restrictions in place under a drought watch. However, local public water suppliers may require such measures depending upon local needs and conditions.
A drought watch or warning is triggered by the State Drought Index, which reflects precipitation levels, reservoir/lake levels, and streamflow and groundwater levels in nine designated drought regions throughout New York. For more detailed drought information, visit DEC's drought webpage.
New Upgrades and Functionality for DECInfo Locator
DEC Commissioner Basil Seggos announced new upgrades and functionality for the online DECinfo Locator tool that provides enhanced access to DEC documents and public data about the environment and outdoor recreation resources. DECinfo Locator was launched a year ago with over 50 data layers and now boasts more than 65, with more on the way.
Water-related data layers include:
- Wastewater Facilities (SPDES permits)
- Water Withdrawal Annual Reports
- Dams and Associated Regulatory Program Data
- Water Inventory/Priority Waterbody List (WI/PWL)
- Harmful Algal Blooms (HABs)
- Regulatory Tidal Wetlands
To access the mapping application, visit the DECinfoLocator webpage.
New Milestone for Harmful Algal Blooms (HABs) Mitigation Announced
Governor Andrew M. Cuomo has announced that the SUNY College of Environmental Science and Forestry (ESF) and Clarkson University will deploy new technologies to combat harmful algal blooms (HABs) in Lake Neatahwanta in Oswego County this summer. In 2019, Governor Cuomo challenged these premier research institutions to use their scientific expertise in water quality to develop new and innovative technologies to reduce the impact of HABs. SUNY ESF and Clarkson University will study the effectiveness of their experimental inventions this summer. Learn more about this project at DEC's Harmful Algal Blooms (HABs) Mitigation Studies webpage.
New Harmful Algal Bloom (HABs) Mitigation Study on Chautauqua Lake
DEC and the United States Army Corp of Engineers (USACE), led by the Engineer Research and Development Center, has announced a collaborative project to study an innovative HAB removal technology called Harmful Algal Bloom Interception, Treatment and Transformation System (HABITATS) on Chautauqua Lake. The system is designed to collect algae-laden water near the surface, clarify and clean the water, then return the water back to the waterbody. Learn more about HABITATS at DEC's Harmful Algal Blooms (HABs) Mitigation Studies webpage.
New York Harmful Algal Blooms Notification and Reporting System
DEC is once again using an online Harmful Algal Blooms (HABs) map and reporting system to inform the public about HABs locations in New York. Dubbed "NYHABS," the reporting system features an interactive map that is updated daily with reports of HABs.
DEC is asking the public and trained algal bloom samplers to send reports of HABs with photos electronically via a simple, mobile phone-friendly form. After DEC and Department of Health (DOH) evaluate the reports, they are posted to NYHABS.
When it comes to HABs, DEC encourages New Yorkers to:
- Know It - HABs vary in appearance from scattered green dots in the water, to long, linear green streaks, pea soup or spilled green paint, to blue-green or white coloration.
- Avoid It - People, pets and livestock should avoid contact with water that is discolored or has algal scums on the surface.
- Report It - The public should report a suspected HAB through the NYHABs online reporting form available on DEC's website. Report health concerns related to HABs to DOH at harmfulalgae@health.ny.gov, or contact your local health department.
Most algae blooms are harmless. However, exposure to toxins and other substances from certain HABs can make people and animals sick.
For more information about HABs, visit DEC's Harmful Algal Blooms (HABs) webpage. You can download the HABs brochure and program guide - which includes information and links to resources regarding bloom prevention, management and control - from the webpage.
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 Watershed 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.
- Water Quantity Management - DEC programs for protecting New York's water supplies including water withdrawals (public, non-potable, agricultural), water well reporting, Water Well Contactor Program, water conservation, drought, and interbasin water diversions.
- 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.
