Tokio potentiometric contours.shp

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, Nevada, and Pike 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
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catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20220721201350
identifier USGS:58908a5de4b072a7ac0cadef
metadata_type geospatial
modified 20200821
old-spatial {"type": "Polygon", "coordinates": [[[-94.11772222, 33.66614167], [-94.11772222, 34.05354722], [ -93.2669796322, 34.05354722], [ -93.2669796322, 33.66614167], [-94.11772222, 33.66614167]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash d1c4a947e71feef388fa28f71a01c4509c09bda7
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-94.11772222, 33.66614167], [-94.11772222, 34.05354722], [ -93.2669796322, 34.05354722], [ -93.2669796322, 33.66614167], [-94.11772222, 33.66614167]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • geo
  • geoss
  • nacatoch
  • national
  • north-america
  • potentiometric-surface
  • tokio
  • united-states
  • usgs-58908a5de4b072a7ac0cadef
isopen False
license_id notspecified
license_title License not specified
maintainer Kirk D Rodgers
maintainer_email krodgers@usgs.gov
metadata_created 2025-11-21T02:15:35.406044
metadata_modified 2025-11-21T02:15:35.406048
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, Nevada, and Pike 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 12
title Tokio potentiometric contours.shp