Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content

Try the next-generation Data Catalog at catalog-beta.data.gov and help shape it with your feedback.

  • Feedback

    • The StreamCat Dataset: Accumulated Attributes for NHDPlusV2 (Version 2.1) Catchments for the Conterminous United States: Runoff

    Metadata Updated: December 2, 2025

    This dataset represents the estimated surface water runoff within individual, local NHDPlusV2 catchments and upstream, contributing watersheds. Attributes of the landscape layer were calculated for every local NHDPlusV2 catchment and then accumulated to provide watershed-level metrics.(see Data Sources for links to NHDPlusV2 data and metadata) The landscape layer (raster) was developed with a water-balance model developed by Dave Wolock of the USGS and is detailed further in the paper "Independent effects of temperature and precipitation on modeled runoff in the conterminous United States". McCabe and Wolock[2011] Runoff is defined as the flow per unit area delivered to streams and rivers in units of millimeters per month. The runoff estimates were summarized to produce local catchment-level and watershed-level metrics as a continuous data type.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    References

    https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset#access-streamcat-data
    https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=01927611-2FD4-4AA1-9C11-3FFC24415867

    Dates

    Metadata Created Date October 3, 2023
    Metadata Updated Date December 2, 2025
    Data Update Frequency R/P3Y

    Metadata Source

    Harvested from StreamCat Harvest

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date October 3, 2023
    Metadata Updated Date December 2, 2025
    Publisher U.S. Environmental Protection Agency, Office of Water,
    Maintainer
    Identifier 01927611-2FD4-4AA1-9C11-3FFC24415867
    Data First Published 2015-04-23
    Language en-US
    Data Last Modified 2023-11-13
    Rights public (Data asset is or could be made publicly available to all without restrictions)
    Category environment
    Public Access Level public
    Data Update Frequency R/P3Y
    Bureau Code 020:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://edg.epa.gov/data/Public/OW/metadata/StreamCat.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Data Dictionary https://www.epa.gov/national-aquatic-resource-surveys/streamcat-metrics-and-definitions
    Data Dictionary Type text/html
    Harvest Object Id 4f46499e-2cda-44cd-a7b1-0cc4a22231dd
    Harvest Source Id e7d3a7e2-50b8-4149-949c-cf56c38224b3
    Harvest Source Title StreamCat Harvest
    Homepage URL https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset
    License https://edg.epa.gov/EPA_Data_License.html
    Old Spatial -125.0,24.5,-66.5,49.5
    Program Code 020:072
    Related Documents https://www.epa.gov/national-aquatic-resource-surveys/streamcat-dataset#access-streamcat-data, https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=01927611-2FD4-4AA1-9C11-3FFC24415867
    Source Datajson Identifier True
    Source Hash 1b55c539480d9f705db0b25e2cdc00dea8f172c78e897f80639f492ad0aa2b97
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -125.0, 24.5, -125.0, 49.5, -66.5, 49.5, -66.5, 24.5, -125.0, 24.5}
    Temporal 2015/2030

    Didn't find what you're looking for? Suggest a dataset here.