EPA Environmental Dataset Gateway
Share Your FeedbackHelp Login
HomeAboutSearch BrowseDataReuseResources
Details Review


Open/Close section Identification Information
Title: EPA Office of Water (OW): 305(b) Waters as Assessed NHDPlus Indexed Dataset
Originator: US Environmental Protection Agency
Publication Date: 20150501
Abstract: The 305(b) program system provide assessed water data and assessed water features for river segments, lakes, and estuaries designated under Section 305(b) of the Clean Water Act. 305(b) waterbodies are coded onto NHDPlus v2.1 features creating area, point and linear events representing assessed and non-assessed waters. In addition to NHDPlus reach indexed data there may also be custom events (point, line, or area) that are not associated with NHDPlus and are in an EPA standard format that is compatible with EPA's Reach Address Database. These custom events are used to represent locations of 305(b) waterbodies that are not represented well in NHDPlus.
Purpose: To identify the spatial extent of waters listed under the 305(b) program attributed as being assessed in the ATTAINS database. These waters can be linked to the 305(b) information stored in the EPA's Assessment and TMDL Tracking and Implementation System (ATTAINS) for query and display. Use the Source_FeatureID field and Cycle_Year field to link indexed assessed waters to the EPA's ATTAINS Database.
Progress: In work
Frequency: Continual
Open/Close section Time Period of Content
Open/Close section Single Date
Date: 20150501
Currentness: publication date
West Bounding Longitude: -160
East Bounding Longitude: -64
North Bounding Latitude: 50
South Bounding Latitude: 17
Zoom to the metadata envelope
Open/Close section Constraints
Access: None
Use: None. Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
Open/Close section Theme Keywords
Theme Topics: accessed waters, 305B, clean water act, map service, waters10, listed waters, shapefile, feature service, point source, GIS, EPA, Stream, reach
Open/Close section Distribution Information
Distribution Liability: https://edg.epa.gov/EPA_Data_License.htm
Address Type: mailing address
City: Washington
State: DC
Postal Code: 20460
Telephone: 202-566-1705
Open/Close section Metadata Reference Information
Address Type: mailing address
City: Washington
State: DC
Postal Code: 20460
Telephone: 202-566-1705
Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
The EDG is a metadata portal that is part of EPA's System of Registries. Please read EPA's Privacy and Security Notice.
Access EPA's National Geospatial Home Page  |  Access EPA's Intranet Geospatial Home Page 

EPA Seal