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Waterbody Inventory/ Priority Waterbodies List

The Waterbody Inventory/Priority Waterbodies List is a statewide inventory (database) of New York State waterbodies which characterizes water quality, the degree to which water uses are supported, progress toward the identification of water quality problems and sources, and activities to restore and protect each individual waterbody. An Overview of the goals, objectives, schedules and other aspects of the WI/PWL is available.

WI/PWL Basin Review and Report Status

Separate Waterbody Inventory/Priority Waterbodies List Reports are prepared and maintained for each of the major drainage basins in New York State. The review and update of the WI/PWL Reports is a continuous process. Each year the update process focuses attention on two or three of the major drainage basins in the state. This rotating basin strategy results in a review and updating of the WI/PWL for all basins in New York State over a five year cycle.

Requests for copies of the most recent WI/PWL Report for a specific basin can be made by phone or in writing (see contact information at the right), or by email. The WI/PWL Reports can also be viewed/downloaded from the WI/PWL Report webpage. The webpage also provides information regarding the current status of the review/update process in each of the major drainage basins of the state.

The WI/PWL Review and Update Process

Review of the water quality assessments generated by NYSDEC and participation in the WI/PWL Update process is open to the public. The review and update of WI/PWL water quality information regarding New York State waters is a continuous process that focuses on two or three drainage basins every year. The most efficient and effective way to participate in the WI/PWL update process is through the state network of County Water Quality Coordinating Committees. For more information about how to participate, contact either Division of Water Program staff at your DEC Regional Office or Jeff Myers at the DEC Central Office in Albany.

Other WI/PWL Materials/Resources

Listed below are other materials and resources used in the WI/PWL review and update effort:

WI/PWL Worksheet and Instructions(PDF) (241 KB) The worksheet is used to capture and submit waterbody-specific information to be considered in the water quality assessments. Instructions on how to complete the worksheet are also included within this document.

An Assessment Methodology (PDF) (511 KB) which outlines what data is considered and how it is evaluated to provide a water quality assessment.

WI/PWL Geographic Information Systems Coverage (leaving NYSDEC Website) that provides shapefiles depicting the location of each water quality assessment unit (i.e., waterbody segment) in the Waterbody Inventory. In addition, tables with water quality assessment information (waterbody assessment, uses impacted, pollutants, sources) for each Priority Waterbodies List segment can be joined to the shapefiles. These tables also identify segments included on the most recent final version of the NYS Section 303(d) List of Impaired/TMDL Waters. Additional information about this dataset, along with usage guidelines and restrictions can be found in the accompanying metadata. (ArcGIS users only)

Google Earth map of the Waterbody Inventory/Priority Waterbodies List that provides links to the Watershed Inventory and Segment Datasheets.

A Waterbody Inventory of specific waterbodies (or assessment units) for drainage basins currently under review.

A WI/PWL Update Schedule that outlines the proposed schedule for the WI/PWL basin review and update process.