Methane and benzene in drinking-water wells overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas

Groundwater samples were collected from domestic and public-supply wells in the Eagle Ford study area in 2015–16, in the Fayetteville study area in 2015, and in the Haynesville study area in 2014–15. One sample of produced water was collected from a gas well in the Haynesville Shale in Rusk County, Texas in 2010, and 5 samples of produced water were collected from oil and condensate wells in the Eagle Ford Shale in Gonzales and Lavaca Counties, Texas in 2015. Groundwater samples were analyzed for major ions, nutrients, and trace elements; methane, methane H and C isotopic compositions, and C1-C5 gas composition; H and O isotopic composition of water; noble gas concentrations and isotopic compositions; tritium, sulfur hexafluoride (SF6), and carbon-14 in dissolved inorganic carbon (DIC), and δ13C-DIC; and volatile organic compounds (VOCs). Water from hydrocarbon wells was analyzed for a subset of these constituents.

Data and Resources

Field Value
accessLevel public
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identifier http://datainventory.doi.gov/id/dataset/usgs-58c187dae4b014cc3a3d36bd
metadata_type geospatial
modified 2020-08-26T00:00:00Z
old-spatial -100.53127404, 27.987055565, -91.002894027, 36.005905684
publisher U.S. Geological Survey
resource-type Dataset
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theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • angelina-county-texas
  • atascosa-county-texas
  • benzene
  • bienville-county-louisiana
  • bossier-county-louisiana
  • burleson-county-texas
  • caddo-county-louisiana
  • cleburne-county-arkansas
  • conway-county-arkansas
  • de-soto-county-louisiana
  • dimmit-county-texas
  • faulkner-county-arkansas
  • fayette-county-texas
  • frio-county-texas
  • geochemistry
  • goliad-county-texas
  • gonzales-county-texas
  • gregg-county-texas
  • groundwater
  • harrison-county-texas
  • independence-county-arkansas
  • jackson-county-arkansas
  • karnes-county-texas
  • la-salle-county-texas
  • lavaca-county-texas
  • mcmullen-county-texas
  • methane
  • nacogdoches-county-texas
  • natchitoches-county-louisiana
  • panola-county-texas
  • red-river-county-louisiana
  • rusk-county-texas
  • sabine-county-louisiana
  • shelby-county-texas
  • unconventional-oil-and-gas
  • upshur-county-texas
  • usgs-58c187dae4b014cc3a3d36bd
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  • white-county-arkansas
  • wilson-county-texas
  • zavala-county-texas
isopen False
license_id notspecified
license_title License not specified
maintainer Peter B McMahon
maintainer_email pmcmahon@usgs.gov
metadata_created 2025-09-23T14:25:33.914344
metadata_modified 2025-09-23T14:25:33.914349
notes Groundwater samples were collected from domestic and public-supply wells in the Eagle Ford study area in 2015–16, in the Fayetteville study area in 2015, and in the Haynesville study area in 2014–15. One sample of produced water was collected from a gas well in the Haynesville Shale in Rusk County, Texas in 2010, and 5 samples of produced water were collected from oil and condensate wells in the Eagle Ford Shale in Gonzales and Lavaca Counties, Texas in 2015. Groundwater samples were analyzed for major ions, nutrients, and trace elements; methane, methane H and C isotopic compositions, and C1-C5 gas composition; H and O isotopic composition of water; noble gas concentrations and isotopic compositions; tritium, sulfur hexafluoride (SF6), and carbon-14 in dissolved inorganic carbon (DIC), and δ13C-DIC; and volatile organic compounds (VOCs). Water from hydrocarbon wells was analyzed for a subset of these constituents.
num_resources 2
num_tags 49
title Methane and benzene in drinking-water wells overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas