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Hydrographic and Impairment Statistics Database: CAHA

Metadata Updated: February 12, 2024

Hydrographic and Impairment Statistics (HIS) is a National Park Service (NPS) Water Resources Division (WRD) project established to track certain goals created in response to the Government Performance and Results Act of 1993 (GPRA). One water resources management goal established by the Department of the Interior under GRPA requires NPS to track the percent of its managed surface waters that are meeting Clean Water Act (CWA) water quality standards. This goal requires an accurate inventory that spatially quantifies the surface water hydrography that each bureau manages and a procedure to determine and track which waterbodies are or are not meeting water quality standards as outlined by Section 303(d) of the CWA. This project helps meet this DOI GRPA goal by inventorying and monitoring in a geographic information system for the NPS: (1) CWA 303(d) quality impaired waters and causes; and (2) hydrographic statistics based on the United States Geological Survey (USGS) National Hydrography Dataset (NHD). Hydrographic and 303(d) impairment statistics were evaluated based on a combination of 1:24,000 (NHD) and finer scale data (frequently provided by state GIS layers).

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

References

https://irma.nps.gov/DataStore/Reference/Profile/2287556

Dates

Metadata Created Date May 31, 2023
Metadata Updated Date February 12, 2024

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date May 31, 2023
Metadata Updated Date February 12, 2024
Publisher National Park Service
Maintainer
@Id http://datainventory.doi.gov/id/dataset/2131bad67d0d0fd357d1ccba935e415c
Identifier NPS_DataStore_2287556
Data First Published 2021-10-01T12:00:00Z
Data Last Modified 2021-10-01
Category geospatial
Public Access Level public
Bureau Code 010:24
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://datainventory.doi.gov/data.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
Harvest Object Id db5621f4-da5d-4e3d-a2a0-d3ad36ee7018
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Homepage URL https://irma.nps.gov/DataStore/Reference/Profile/2287556
Metadata Type geospatial
Old Spatial -76.78484,34.5212822,-75.3890457,36.82147
Program Code 010:118, 010:119
Publisher Hierarchy White House > U.S. Department of the Interior > National Park Service
Related Documents https://irma.nps.gov/DataStore/Reference/Profile/2287556
Source Datajson Identifier True
Source Hash bc92d9809916d26cae47b3a9adf417a0baf36298514737e97ec0e96a94119947
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -76.78484, 34.5212822, -76.78484, 36.82147, -75.3890457, 36.82147, -75.3890457, 34.5212822, -76.78484, 34.5212822}

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