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    • Water-quality data for chloride, sulfate, total dissolved solids, total suspended solids for sites in Red River of the North basin, 1970-2017

    Metadata Updated: January 6, 2026

    This child page contains 34 csv files, site_qw_ions, which contain observations of chloride (cl), sulfate (sul), total dissolved solids (tds), or total suspended solids (tss) for each site. Each file includes date of observation, measured value of water-quality constituent, remark code for the measured value, and site name. Availability of observations of water-quality constituents depended upon collecting agency and varied by site and constituent. Not all sites had observations for all constituents. The format of the csv file (date format and column headings) is designed to meet the specific requirements of file format for R–QWTREND. If csv files are opened directly in excel, the format of the data can change. To ensure the data are in the proper format for R–QWTREND, files should be opened in a text editor. The "site" in site_qw_ions can be cross-referenced to the main report by downloading the zipped folder RRTrend from child page, "Scripts to run R-QWTREND models and produce results" and navigating to the file siteinfo_appendix.txt.

    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

    Dates

    Metadata Created Date January 6, 2026
    Metadata Updated Date January 6, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 6, 2026
    Metadata Updated Date January 6, 2026
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/USGS_5e580537e4b01d50924a949d
    Data Last Modified 2020-08-18T00:00:00Z
    Category geospatial
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-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
    Harvest Object Id 91da4579-666f-455d-b2f6-2b7116c4e216
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -99.0, 45.305494872747, -95.000000000001, 50.2
    Source Datajson Identifier True
    Source Hash 5139d8577a8738b31757f142008c148e4ed8dba488bd03df087be5c92ad23f65
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -99.0, 45.305494872747, -99.0, 50.2, -95.000000000001, 50.2, -95.000000000001, 45.305494872747, -99.0, 45.305494872747}

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