Data include 222Rn activities and complimentary geochemical data for multiple field experiments as part of an EGS project

This data release includes field parameters (pH and specific conductance), major ion geochemistry (B, Ba, Br, Cl, Ca, Fe, K, Li, Mg, Mn, Na, Si, SO4, Sr), total dissolved solids, specific gravity, water isotopes (delta-2H and delta-18O), and radium isotopes (226Ra and 228Ra) from produced water samples taken from petroleum wells producing from the Niobrara Formation in the Denver-Julesburg Basin, Weld County, Colorado. Additionally, gas composition and stable isotopes (delta-13C-CO2, delta-13C-C1, and delta-D-C1) from these wells are included. Major ion geochemistry, total dissolved solids, specific gravity, water isotopes, and radium isotopes were analyzed at the U.S. Geological Survey laboratories in Reston, Virginia, USA. Gas compositions were analyzed by a commercial laboratory. The data release includes four files, including one metadata file and 3 comma-separated (CSV) files.

Contains RADON-222 flux data data collected by TGB-12 in the northern study area.

Two Saphymo AlphaE radon (Rn) detectors, with a measurement range of 0.54 picoCuries per liter of air (pCi/L) to 270 nanoCuries per liter of air (nCi/L), were deployed from October 2015 thru May 2016 in publicly accessible areas adjacent to the Pinenut uranium mine located in northern Arizona. One monitor was installed in close proximity to the mine vent and a second monitor was installed in close proximity to the ore pile. In late December 2015, a third AlphaE Rn detector was deployed adjacent to the ore-pile monitor. Measurement frequency was 3 times per hour and a time-lapse camera was installed in close proximity to the ore pile to record relative size and activity of the ore pile during mining and early reclamation. Because of size limitations, the photos from the time-lapse camera are not included in the data release. Instead, information from each photograph was summarized in a separate data file included in the data release. A meteorological station was installed at the site and recorded wind speed, wind direction, and precipitation during the study period. Three Saphymo AlphaE Rn detectors were evaluated against a laboratory grade RAD7 spectral alpha counter in a controlled environment to verify field monitoring results. The RAD7 was factory calibrated to a NIST standard prior to testing. A NIST traceable Rn-222 activity sample of granite was used as the Rn source for all testing.

Two Saphymo AlphaE radon (Rn) detectors, with a measurement range of 0.54 picoCuries per liter of air (pCi/L) to 270 nanoCuries per liter of air (nCi/L), were deployed from October 2015 thru May 2016 in publicly accessible areas adjacent to the Pinenut uranium mine located in northern Arizona. One monitor was installed in close proximity to the mine vent and a second monitor was installed in close proximity to the ore pile. In late December 2015, a third AlphaE Rn detector was deployed adjacent to the ore-pile monitor. Measurement frequency was 3 times per hour and a time-lapse camera was installed in close proximity to the ore pile to record relative size and activity of the ore pile during mining and early reclamation. Because of size limitations, the photos from the time-lapse camera are not included in the data release. Instead, information from each photograph was summarized in a separate data file included in the data release. A meteorological station was installed at the site and recorded wind speed, wind direction, and precipitation during the study period. Three Saphymo AlphaE Rn detectors were evaluated against a laboratory grade RAD7 spectral alpha counter in a controlled environment to verify field monitoring results. The RAD7 was factory calibrated to a NIST standard prior to testing. A NIST traceable Rn-222 activity sample of granite was used as the Rn source for all testing.

Contains RADON-222 activity in soil gas collected by TGB-12 at 5 BOREAS auxiliary sites in the northern study area.

This dataset documents results from 1,041 groundwater samples collected during 1986‒2015 from 16 geologic units in Pennsylvania associated with 25 or more groundwater samples with activities or concentrations of radon-222. Radon-222 is hereafter referred to as “radon.” These 16 geologic units were evaluated in an effort to identify variations in radon concentrations and to classify potential radon exposure from groundwater and indoor air. This dataset was developed for the Pennsylvania Environmental Public Health Tracking (PAEPHT) Program to describe the spatial distribution of radon concentrations in groundwater in Pennsylvania and to illustrate data gaps that exist throughout the State. The PAEPHT Program is part of the National Environmental Public Health Tracking Program funded by the Centers for Disease Control and Prevention (CDC) to improve public health by providing science-based information about the presence of and trends in environmentally related diseases. A focus area for the PAEPHT Program is that of understanding the occurrence of radon concentrations in groundwater and indoor air across the State. This dataset representing radon concentrations in groundwater and describing potential radon exposure from groundwater and indoor air according to geologic units may be used for resource decision-making and risk assessment. This dataset is available from the U.S. Geological Survey (USGS) at https://doi.org/10.5066/F7PR7T74. The companion publication describing the study is at https://pubs.er.usgs.gov/publication/sir20175018 [https://doi.org/10.3133/sir20175018] and is intended to be available through the online databases of the CDC and the PAEPHT programs [http://doh.pa.gov/epht].

The U.S. Geological Survey, in collaboration with the Department of Energy, University of Montana, Northern Arapaho Tribe, and Liverpool John Moores University, is studying the interaction of a contaminated groundwater plume enriched in uranium and other trace elements with water, sediment, and biota along a 3 km reach of the Little Wind River in central Wyoming. The source of the contaminants is from a reclaimed uranium mill site near Riverton, Wyoming. This Data Release makes available data collected from June to September, 2016 and August to September, 2017. Data collected during these time periods include: (1) radon, major-ion, and trace-element concentrations in surface-water, groundwater, and pore-water samples; (2) environmental tracers in groundwater and surface-water samples; (3) seepage rates of shallow groundwater into the Little Wind River; (4) streambed temperature; (5) distribution of uranium in bed sediment, macroalgae, and aquatic insect taxa; (6) river discharge at three sites along the study reach, (7) major-ion and trace-element concentrations in shallow sediment cores collected from the streambed; (8) periphyton biomass accrual on ceramic plates during a 2-week deployment period; and (9) uranium and molybdenum concentration in periphyton samples collected from sites within the study reach.