Hydrologist
Email:
ajlong@usgs.gov
Office Phone:
253-552-1660
Fax:
253-552-1581
ORCID:
0000-0001-7385-8081
Location
934 Broadway
Suite 300
Tacoma
, WA
98402
US
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Water used for hydraulic fracturing treatments in and near the Williston Basin during 2000-2015, was estimated using data reported in IHS Markit (TM) (2016). Hydraulic fracturing treatment data from IHS Markit (TM) (2016) may include volumes in a variety of measurement units, and they may include multiple treatments per well. All listed treatments within the study area were converted to gallons and summed on a per-well basis, discounting any treatments for which the specified measurement units were unclear (for example, “sacks”, or “feet”), which were minor. Of 3,734,380 treatments listed within the study area during the timeframe of interest, 0.7% (26,373 records) were not included. For each well, the date listed...
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A three-dimensional groundwater flow model (MODFLOW-NWT) of the Columbia Plateau Regional aquifer (CPRAS) in Washington, Oregon, and Idaho was developed to provide an integrated understanding of the hydrologic system to implement effective water-resource management strategies. The U.S. Geological Survey (USGS) Groundwater Resources Program assessed the groundwater availability as part of a national study of regional systems (https://pubs.usgs.gov/circ/1323/). The CPRAS assessment includes the status of groundwater resources, how these resources have changed over time, and development and application of tools to estimate system responses to stresses from future uses and climate variability and change. A major product...
Tags: Blue Mountains,
Clearwater Embayment,
Columbia Plateau,
Columbia River Basalt Group,
Grande Ronde Basalt, All tags...
Groundwater,
Groundwater Model,
Hydrology,
Idaho,
Imnaha Basalt,
InlandWaters,
InlandWaters,
MODFLOW-NWT,
Mabton Interbed unit,
Oregon,
Palouse Slope,
Picture Gorge Basalt,
Prineville Basalt,
Saddle Mountains Basalt,
USGS Science Data Catalog (SDC),
Vantage Interbed unit,
Wanapum Basalt,
Washington,
Yakima Fold Belt,
climate change,
environment,
geoscientificInformation,
usgsgroundwatermodel, Fewer tags
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A three-dimensional groundwater flow model, constructed in MODFLOW-NWT, was developed to evaluate the groundwater flow system near Puget Sound, Pierce and King Counties, Washington. A steady-state model version was constructed to simulate equilibrium conditions, while a transient model version was constructed to simulate monthly variability from January 2005 to December 2015. The model was used to simulate several hydrologic scenarios. This data release contains the input and output files for the simulations described in the associated model documentation report (https://doi.org/10.3133/sir20245026v2).
Tags: Groundwater Model,
Hydrology,
InlandWaters,
King County,
MODFLOW-NWT, All tags...
Pierce County,
Puget Sound,
USGS Science Data Catalog (SDC),
Washington,
environment,
geoscientificInformation,
groundwater,
inlandWaters,
usgsgroundwatermodel, Fewer tags
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The data within this data release presents information used to characterize the groundwater-flow system and the development of a groundwater-flow model in the active model area. Conceptual and numerical models of groundwater flow were developed by the U.S. Geological Survey Washington Water Science Center, in close cooperation with 18 water-resource agencies and stakeholders, to assess the potential hydrologic and anthropogenic impacts to groundwater and the connected surface-water resources.
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The depths to a high and average water table below the land surface were estimated across the Clover Creek watershed in Pierce County, Washington. Groundwater model simulations provided initial estimates of water-table depths for the analysis. To provide optimized, data-driven estimates of these depths, a continuous bias correction surface was applied to model output according to differences between simulated and observed water levels at observation wells.
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