Jump to main content or area navigation.

Contact Us

Water: Data

Geospatial Data Downloads


Description

Geospatial data for EPA's Office of Water Programs, including 303(d) Impaired Waters, 305(b) Waters As Assessed and Total Maximum Daily Loads (TMDLs) are available as prepackaged national downloads or as more current GIS web and and data services. EPA provides WATERS geospatial data in a variety of formats including Geographical Information Systems (GIS) compatible shapefiles and geodatabases, as well as ESRI and OGC web mapping services.

Current State Geospatial Data

You may download geospatial files representing the most up-to-date publicly available Water program data by State (or custom area) from EPA's Environmental Dataset Gateway (EDG) Clip N Ship Site. For ATTAINS 303(d) and 305(b) geospatial data, the Table of Available Cycles in the RAD  (2 pp, 7K, About PDF) lists the most recent ATTAINS cycle for which GIS data are available for each state.

National Geospatial Datasets

National geospatial datasets provided on this page are produced and periodically updated by EPA using state-submitted data. These datasets are created based on information in the Reach Address Database (RAD) on the date of extract. To be included in this dataset states and other jurisdictions must have submitted information to the program database and be indexed to NHDPlus reached hydrography. Due to the nature and complexity of providing a national snapshot of program data, EPA has provided a fact sheet to accompany and clarify the contents of each dataset.

ATTAINS Program Data

303(d) Listed Impaired Waters NHDPlus Indexed Dataset with Program Attributes
Download

Extracted on August 4, 2014

Changelog (Excel)(20 K)

Shapefiles (153 MB)

OGC GeoPackage (171 MB)

ESRI 10.x File Geodatabase (98.9 MB)

Attributes Only (Excel, 9 MB)

Metadata Spatial and attribute metadata is located at the EPA Environmental Dataset Gateway.
Additional Information

For this dataset as of 2014, Reach Address Database events have been indexed to NHDPlus v2.1 Exit EPA Disclaimer hydrology (previous versions utilized NHDPlus v1.0 hydrology).

Fact Sheet (pdf)(2 pp, 473K)
[Pending update to fact sheets: Users should now obtain state-level geospatial data at EPA's Environmental Dataset Gateway (EDG) Clip N Ship Site.]

303(d) Listed Impaired Waters by Causes of Impairment and Probable Sources Field Descriptions(Word)(1 pp, 20K)

Pollution Category summary document (pdf)(21 pp, 604K)

Geospatial and Attribute Linkage Information Use the provided ESRI_KEY for joining tables.  Note that there is a many-to-many relationship between attributes and geospatial records.


305(b) Waters As Assessed NHDPlus Indexed Dataset with Program Attributes
Download

Extracted on August 4, 2014

Changelog (Excel)(24 K)

Shapefiles (353 MB)

OGC GeoPackage (406 MB)

ESRI 10.x File Geodatabase (240 MB)

Attributes Only (Excel, 48 MB)

Metadata Spatial and attribute metadata is located at the EPA Environmental Dataset Gateway.
Additional Information

For this dataset as of 2014, Reach Address Database events have been indexed to NHDPlus v2.1 Exit EPA Disclaimer hydrology (previous versions utilized NHDPlus v1.0 hydrology).

Fact Sheet Coming Soon

305(b) Assessed Waters by Assessed Uses Field Descriptions(Word)(1 pp, 20K)

Geospatial and Attribute Linkage Information Use the provided ESRI_KEY for joining tables.  Note that there is a many-to-many relationship between attributes and geospatial records.


2002 Impaired Waters Baseline NHDPlus Indexed Dataset
Download

Extracted on February 7, 2014

Shapefiles (128 MB)

ESRI 10.x File Geodatabase (84 MB)

Metadata Spatial metadata is located at the EPA Environmental Dataset Gateway.
Additional Information

For this dataset as of 2014, Reach Address Database events have been indexed to NHDPlus v2.1 Exit EPA Disclaimer hydrology (previous versions utilized NHDPlus v1.0 hydrology).

Fact Sheet (pdf)(2 pp, 132K)
[Pending update to fact sheets: Users should now obtain state-level geospatial data at EPA's Environmental Dataset Gateway (EDG) Clip N Ship Site.]

Pollution Category summary document (pdf)(21 pp, 604K)

Geospatial and Attribute Linkage Information Selected attributes are included with the above downloads.


Watershed Boundaries for the 2002 Impaired Waters Baseline
Download

Extracted on March 18, 2010

Shapefiles (154 MB)

ESRI 9.3.1 File Geodatabase (83 MB)

Metadata Metadata is located within the downloads.
Additional Information Fact Sheet (pdf)(2 pp, 244K)


Impaired Waters with TMDLs NHDPlus Indexed Dataset with Program Attributes
Download

Extracted on August 4, 2014

Changelog (Excel)(20K)

Shapefiles (96 MB)

OGC GeoPackage (110 MB)

ESRI 10.x File Geodatabase (65 MB)

Attributes Only (Excel, 8 MB)

Metadata Spatial and attribute metadata is located at the EPA Environmental Dataset Gateway.
Additional Information

For this dataset as of 2014, Reach Address Database events have been indexed to NHDPlus v2.1 Exit EPA Disclaimer hydrology (previous versions utilized NHDPlus v1.0 hydrology).

Fact Sheet (pdf)(2 pp, 333K)
[Pending update to fact sheets: Users should now obtain state-level geospatial data at EPA's Environmental Dataset Gateway (EDG) Clip N Ship Site.]

Impaired Waters with TMDLs by Causes of Impairment and Probable Sources and TMDL Pollutant Field Descriptions(Word)(2 pp, 21K)

Pollution Category summary document (pdf)(21 pp, 604K)

Geospatial and Attribute Linkage Information Use the provided ESRI_KEY for joining tables.  Note that there is a many-to-many relationship between attributes and geospatial records.

BEACH Program Data
 
Beaches NHDPlus Indexed Dataset
Download

Extracted on August 4, 2014

Changelog (Excel)(30.7 K)

Shapefiles (3.2 MB)

OGC GeoPackage (4 MB)

ESRI 10.x File Geodatabase (3.3 MB)

Attributes Only (Excel, 1 MB)

Metadata Spatial and attribute metadata is located at the EPA Environmental Dataset Gateway.
Additional Information

For this dataset as of 2014, Reach Address Database events have been indexed to NHDPlus v2.1 Exit EPA Disclaimer hydrology (previous versions utilized NHDPlus v1.0 hydrology).

Fact Sheet (pdf)(2 pp, 216K)

Geospatial and Attribute Linkage Information Selected attributes are included with the above downloads.

Water Quality Standards Program Data
 
303(c) Water Quality Standards NHDPlus Indexed Dataset
This is the final release of WQS as of December 2007. See WQS Factsheet - Release 9 for more information.
Download

Extracted on March 18, 2010
Shapefiles (817 MB)

ESRI 9.3.1 File Geodatabase (510 MB)
Metadata Metadata is located within the downloads.
Additional Information Refer to the WQSDB Date Table for information regarding dates of indexing.
Geospatial and Attribute Linkage Information Relational key: RAD source_featureid = WQS wqs_entity_id


Jump to main content.