Data for Fluoride Occurrence in United States Groundwater

Data from 38,105 wells were used to characterize fluoride occurrence in untreated United States groundwater. The data were retrieved from the U.S. Geological Survey (USGS) National Water Information System (NWIS). Groundwater samples were collected from 1988 to 2017 in the conterminous United States. Data for groundwater included in this dataset are pH, water temperature, and concentrations of dissolved oxygen, calcium, magnesium, potassium, sodium, alkalinity, chloride, fluoride, silica, sulfate, aluminum, iron, manganese, and total dissolved solids.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
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catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20220722114234
identifier USGS:5e160b17e4b0ecf25c5617b7
metadata_type geospatial
modified 20200814
old-spatial {"type": "Polygon", "coordinates": [[[-125.2441, 24.3671], [-125.2441, 49.4967], [ -66.7090, 49.4967], [ -66.7090, 24.3671], [-125.2441, 24.3671]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 2ef21eaef61b7d1244d1eff47b249ddec42f6195
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-125.2441, 24.3671], [-125.2441, 49.4967], [ -66.7090, 49.4967], [ -66.7090, 24.3671], [-125.2441, 24.3671]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • cycle-3
  • fluoride
  • geo
  • geochemistry
  • geoss
  • groundwater
  • national
  • nawqa
  • north-america
  • united-states
  • usgs-5e160b17e4b0ecf25c5617b7
  • water-quality
isopen False
license_id notspecified
license_title License not specified
maintainer Peter B. McMahon
maintainer_email pmcmahon@usgs.gov
metadata_created 2025-11-21T04:45:29.133639
metadata_modified 2025-11-21T04:45:29.133643
notes Data from 38,105 wells were used to characterize fluoride occurrence in untreated United States groundwater. The data were retrieved from the U.S. Geological Survey (USGS) National Water Information System (NWIS). Groundwater samples were collected from 1988 to 2017 in the conterminous United States. Data for groundwater included in this dataset are pH, water temperature, and concentrations of dissolved oxygen, calcium, magnesium, potassium, sodium, alkalinity, chloride, fluoride, silica, sulfate, aluminum, iron, manganese, and total dissolved solids.
num_resources 2
num_tags 15
title Data for Fluoride Occurrence in United States Groundwater