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#1 Federal

Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA: Table 2. Detailed information on the calibration of dissolved gas models to dissolved gas concentrations (neon, argon, krypton, xenon, and nitrogen).

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H, 3Hetrit, SF6 , 14C...

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Search relevance: 1.00 | Views last month: 7 | Catalog Last Checked: August 01, 2026 at 04:03 AM

#2 Federal

MODFLOW 2000 and MT3DMS models of potentiometric head and trichloroethene concentration at the Naval Industrial Reserve Ordnance Plant, Fridley, Minnesota

Organization: Department of the Interior
Dataset Last Updated: November 17, 2020 at 12:00 AM

This model is a preliminary characterization of trichloroethene transport in the surficial and Cambrian-Ordovician aquifer systems at the Naval Industrial Reserve Ordnance Plant in Fridley,...

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Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: August 01, 2026 at 03:03 AM

#3 Federal

Data for Tritium as an Indicator of Modern, Mixed and Premodern Groundwater Age

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

Categorical classification of groundwater age based on concentrations of tritium (3H) in groundwater can provide useful information for the assessment and understanding of groundwater resources....

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Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: August 01, 2026 at 05:35 AM

#4 Federal

Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H, 3Hetrit, SF6 , 14C...

xml
xml

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: August 01, 2026 at 05:11 AM

#5 Federal

Estimated Groundwater Withdrawals from Principal Aquifers in the United States—County Level Data for 2015

Organization: Department of the Interior
Dataset Last Updated: August 21, 2020 at 12:00 AM

This dataset contains estimates of water withdrawals from 66 principal aquifers and "other" non-principal aquifers during 2015 for various categories of use in each county or county equivalent in...

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Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:41 AM

#6 Federal

Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA: Table 1. Dissolved gas modeling results, environmental tracer concentrations (tritium, tritiogenic helium-3, sulfur hexafluoride, carbon-14, and radiogenic helium-4), and results for the mean age of groundwater by calibration of lumped parameter models to tracer concentrations.

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H, 3Hetrit, SF6 , 14C...

xml
xml

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:18 AM

#7 Federal

Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA: Table 3. Detailed information on calculations of environmental tracer data.

Organization: Department of the Interior
Dataset Last Updated: August 26, 2020 at 12:00 AM

High radium (Ra) concentrations in potable portions of the Cambrian-Ordovician (C-O) aquifer system were investigated using water-quality data and environmental tracers ( 3H, 3Hetrit, SF6 , 14C...

xml
xml

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: August 01, 2026 at 05:02 AM

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Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA: Table 2. Detailed information on the calibration of dissolved gas models to dissolved gas concentrations (neon, argon, krypton, xenon, and nitrogen).

MODFLOW 2000 and MT3DMS models of potentiometric head and trichloroethene concentration at the Naval Industrial Reserve Ordnance Plant, Fridley, Minnesota

Data for Tritium as an Indicator of Modern, Mixed and Premodern Groundwater Age

Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA

Estimated Groundwater Withdrawals from Principal Aquifers in the United States—County Level Data for 2015

Data for Radium Mobility and the Age of Groundwater in Public-drinking-water Supplies from the Cambrian-Ordovician Aquifer System, North-Central USA: Table 3. Detailed information on calculations of environmental tracer data.