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Groundwater-quality and quality-control data for two monitoring wells near Pavillion, Wyoming, April and May 2012

Data Series 718

In cooperation with the Wyoming Department of Environmental Quality
By:
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Abstract

In June 2010, the U.S. Environmental Protection Agency installed two deep monitoring wells (MW01 and MW02) near Pavillion, Wyoming, to study groundwater quality. During April and May 2012, the U.S Geological Survey, in cooperation with the Wyoming Department of Environmental Quality, collected groundwater-quality data and quality-control data from monitoring well MW01 and, following well redevelopment, quality-control data for monitoring well MW02. Two groundwater-quality samples were collected from well MW01—one sample was collected after purging about 1.5 borehole volumes, and a second sample was collected after purging 3 borehole volumes. Both samples were collected and processed using methods designed to minimize atmospheric contamination or changes to water chemistry. Groundwater-quality samples were analyzed for field water-quality properties (water temperature, pH, specific conductance, dissolved oxygen, oxidation potential); inorganic constituents including naturally occurring radioactive compounds (radon, radium-226 and radium-228); organic constituents; dissolved gasses; stable isotopes of methane, water, and dissolved inorganic carbon; and environmental tracers (carbon-14, chlorofluorocarbons, sulfur hexafluoride, tritium, helium, neon, argon, krypton, xenon, and the ratio of helium-3 to helium-4). Quality-control sample results associated with well MW01 were evaluated to determine the extent to which environmental sample analytical results were affected by bias and to evaluate the variability inherent to sample collection and laboratory analyses. Field documentation, environmental data, and quality-control data for activities that occurred at the two monitoring wells during April and May 2012 are presented.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Groundwater-quality and quality-control data for two monitoring wells near Pavillion, Wyoming, April and May 2012
Series title:
Data Series
Series number:
718
Year Published:
2012
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Wyoming Water Science Center
Description:
vi, 23 p.; col. ill.; map (col.); Downloads Directory
First page:
i
Last page:
23
Number of Pages:
32
Country:
United States
State:
Wyoming
City:
Pavillion
Online Only (Y/N):
Y
Additional Online Files(Y/N):
Y