Tokio study area

The Tokio Formation in southwestern Arkansas, hereafter referred to as the Tokio aquifer, is a source of groundwater for agricultural, domestic, industrial, and public use in Clark, Hempstead, Little River, Miller, Pike, and Nevada counties. Water-level altitudes measured 42 wells completed in the Tokio aquifer during 2014 and 2015 were used to create a potentiometric-surface map. In southwestern Arkansas, potentiometric surfaces indicate that groundwater flow in the Tokio aquifer is towards the city of Hope. Northwest of the city of Hope, a cone of depression may exist. In southwestern Pike, northwestern Nevada, and northeastern Hempstead Counties, an area of artesian flow (water levels are at or above land surface) exists.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://ddi.doi.gov/usgs-data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/usgs-5926e24de4b0b7ff9fb48a28
metadata_type geospatial
modified 2020-08-21T00:00:00Z
old-spatial -94.265396119, 33.475123036, -92.876048896, 34.216705631
publisher U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 32cafee116947c762735d127295e3e2bb49fb2e0e0815e5a212c21a65ab1c1f0
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-94.265396119, 33.475123036], [-94.265396119, 34.216705631], [ -92.876048896, 34.216705631], [ -92.876048896, 33.475123036], [-94.265396119, 33.475123036]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • nacatoch
  • potentiometric-surface
  • study-area
  • tokio
  • usgs-5926e24de4b0b7ff9fb48a28
isopen False
license_id notspecified
license_title License not specified
maintainer William J. Wolfe
maintainer_email wjwolfe@usgs.gov
metadata_created 2025-09-24T06:32:53.730750
metadata_modified 2025-09-24T06:32:53.730760
notes The Tokio Formation in southwestern Arkansas, hereafter referred to as the Tokio aquifer, is a source of groundwater for agricultural, domestic, industrial, and public use in Clark, Hempstead, Little River, Miller, Pike, and Nevada counties. Water-level altitudes measured 42 wells completed in the Tokio aquifer during 2014 and 2015 were used to create a potentiometric-surface map. In southwestern Arkansas, potentiometric surfaces indicate that groundwater flow in the Tokio aquifer is towards the city of Hope. Northwest of the city of Hope, a cone of depression may exist. In southwestern Pike, northwestern Nevada, and northeastern Hempstead Counties, an area of artesian flow (water levels are at or above land surface) exists.
num_resources 2
num_tags 13
title Tokio study area