Data

Wetlands play an important role in carbon retention, which is greatly dependent on hydrological conditions. Therefore, the interest in wetland hydrology has increased over recent decades. In wetland hydrology, stable water isotopes (δ2H, δ18O) have found increasing use, as laser-based instruments have become readily available and allow for faster analysis and lower costs. However, the...

The National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota is the site of a 1979 high-pressure crude oil pipeline rupture. Approximately 1.7 million liters of crude oil spilled onto the glacial outwash aquifer. After remediation and natural attenuation, an estimated 25% of the oil remains in the subsurface today. Groundwater monitoring at the site...

The upper portion of the Troublesome Aquifer is the sole source of water for domestic use in the Greater Pole Creek Basin, situated in the western portion of the upper Fraser River Valley in Grand County, Colorado. Data from drilling records for wells installed near and within recent home developments, municipal water-suppliers, water-quality records, and published reports are summarized...

This data release makes available the data used to test and refine a remote sensing approach for estimating river discharge via critical flow theory. In rivers where flow conditions are near critical and well-defined standing waves are present, discharge can be inferred from measurements of wavelength and channel width made on an image. The goals of the study were to: 1) evaluate the

To understand water scarcity issues in the Upper Colorado River Basin (UCRB), our research team collaborated with librarians at the Department of Interior with access to Lexis Nexis to query its newspaper and congressional research databases for topics of interest between 2000 and 2024 in our area of interest in the UCRB. The data were pre-processed into a tabular format and loaded into...

During December 2023, the U.S. Geological Survey collected ground-penetrating radar (GPR) data in select small peat bogs near the Quashnet River to map the depth to bedrock for use as inputs to a groundwater flow model. This data release contains the raw GPR data from 22 GPR profiles covering more than 1.8 kilometers.

Per- and polyfluoroalkyl substances (PFAS) and co-occurring constituents were assessed in the Upper Colorado River Basin during three sampling campaigns conducted from 2022 to 2024. In May 2022, discrete water samples were collected at five sites along a longitudinal transect from the Fraser River near Tabernash, Colorado to the Colorado River near Grand Junction, Colorado. Time series...

This data release provides the source data and results of a flood frequency analysis for sites in the Mendenhall River Basin, Alaska, that was conducted using USGS PeakFQ software (Veilleux and others, 2014; Flynn and others, 2006). Data are provided for two streamgages that had at least 10 years of annual peak-flow record. The data include streamgage information, PeakFQ input (.txt and...

This dataset includes field and laboratory analyses of water samples collected from lakes, ponds, rivers, and streams in northwest Alaska within Cape Krusenstern National Monument, Noatak National Preserve, Kobuk Valley National Park, Gates of the Arctic National Park and Preserve, and Bering Land Bridge National Preserve. At sites across the five national park units, in situ water...

In 2023, the U.S. Geological Survey conducted a reconnaissance survey of surface-water quality in areas of southern West Virginia and eastern Kentucky that have ongoing and/or historic mountaintop removal mining for coal resources. The water-quality data collected during the survey are collated in this data release.

This data release contains seasonal streamflow estimates across the conterminous United States (2,691,587 NHDPlusV2 flowlines with defined from nodes) for 21 water years from November 1999 through December 2020. Streamflow was estimated using the Enhanced unit RunOff Method (EROM) following McKay and others (2012) with updated diversion representation and extended here to include...

Approximately 3 to 4 kg of NBS 19 limestone, prepared in 1982 by the U.S. Geological Survey (USGS), serves as a primary reference for the carbon isotope scales VPDB and VPDB-LSVEC and the oxygen isotope scale VPDB. Its consensus values are +1.95 ‰ for δ¹³C and –2.2 ‰ for δ¹⁸O measurements. After more than three decades of distribution, the number of units labeled “NBS 19” shrunk...