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Filters Contacts (Less) Charles N Alpers U.S. Geological Survey - ScienceBase U.S. Geological Survey Mark C Marvin-DiPasquale Jacob A Fleck Water Resources Shaun M Baesman Jennifer L Agee California Water Science Center James L Orlando Lisamarie Windham-Myers Evangelos Kakouros U.S. Geological Survey, SOUTHWEST REGION Le Kieu Kate M Campbell-Hay Connor J Mcvey Brian Bergamaschi Patrick T Watanabe Erin Hestir Angela M Hansen Shanna L Miller Earth System Processes Division Energy and Minerals Geology, Geophysics, and Geochemistry Science Center Forest and Rangeland Ecosystem Science Center Michelle R Arias Katy O'Donnell Collin A Eagles-Smith Craig A Johnson Erica R De Parsia Tyler J Kane Shanna L Rose Alfred J Ward Zeno F Levy Diana M Oros David A Roth Ecosystems Kate M Campbell Sarah E Janssen Mineral Resources Program Jeffrey (Chuck) A Hansen Michael Hedgpeth Kevin Kinnard Elizabeth B Stumpner Ethan R Enos Peter Bennett Ayelet Delascagigas Dylan J Burau James Orlando Crystal L Sturgeon More... View Results as: JSON ATOM CSV

Geochemical data for post-fire surface water, streambed sediment, and soils from areas affected by the 2018 Camp Fire, Butte County, California During November 2018, the Camp Fire burned more than 150,000 acres in Butte County, California. The fire was the deadliest and most destructive in California history, destroying more than 18,000 structures and causing at least 85 fatalities. The U.S. Geological Survey sampled surface water in areas affected by the Camp Fire, plus an unburned control site, during two post-fire sampling events, January 21-23, 2019 and February 28 - March 1, 2019. During each of those two sampling events, surface-water samples were collected at 8 stream locations. These 16 water samples were filtered using filters with multiple pore sizes (1.2 µm, 0.8 µm, 0.45 µm, and 0.22 µm) to evaluate colloid transport of trace elements. The filtrates... Categories: Data; Tags: Butte County, California, Environmental Health, Geochemistry, Land Use Change, All tags... USGS Science Data Catalog (SDC), Water Quality, boundaries, fires, runoff, soil chemistry, surface water quality, suspended material (water), Fewer tags Geochemical data including mercury for subsamples of deep cores from the Cache Creek Settling Basin, Yolo County, California Sediment cores were collected in the Cache Creek Settling Basin (CCSB), Yolo County, California, during October 2011 at 10 locations (borehole sites) and during August 2012 at 5 other locations. Total core depths ranged from approximately 4.6 to 13.7 meters (15 to 45 feet), with penetration to about 9.1 meters (30 feet) at most locations. Detailed subsampling (3-centimeter intervals) was done at total of seven locations: six along an east-west transect in the southern part of the Cache Creek Settling Basin and at one in the northern part of the basin for analyses of total mercury; organic content; and cesium-137, which was used for dating. This data release reports results of the analyses of each subsample of these... Categories: Data; Tags: Cache Creek Settling Basin, Sacramento River Watershed, Sacramento–San Joaquin River Delta, USGS Science Data Catalog (SDC), Woodland, CA, All tags... Yolo Bypass, Yolo County, basin, cesium, chemical analysis, drilling and coring, environment, field sampling, geochemistry, isotopic analysis, mercury, mercury contamination, none, sediment geochemistry, wetlands, Fewer tags Geochemical, mineralogical, and grain-size data for deep cores from the Cache Creek Settling Basin and streambed sediments from the Sacramento River watershed The Cache Creek Settling Basin (CCSB) is a 13.3 km2 levee-bounded sediment retention basin located at the modern terminus of Cache Creek near the eastern boundary of Yolo County, approximately two miles NE of Woodland, California. The Cache Creek Settling Basin was constructed in 1937 by the U.S. Army Corps of Engineers to trap suspended sediment from the upper Cache Creek watershed during high-flow events, with the purpose of preserving the floodway capacity of the Yolo Bypass, a larger leveed floodway located downstream. This dataset includes subsamples from sediment cores and shallow streambank sediment collected from the Sacramento River watershed. Sediment cores were collected in the Cache Creek Settling Basin... Categories: Data; Tags: Basin, Cache Creek, California, Drilling and Coring, Geochemistry, All tags... Provenance, Sediment Fingerprinting, Sediment Geochemistry, USGS Science Data Catalog (SDC), environment, geoscientificInformation, Fewer tags Discrete sample surface-water data for the Sacramento-San Joaquin River Delta The goal of this study was to develop a suite of inter-related water quality monitoring approaches capable of modeling and estimating the spatial and temporal gradients of particulate and dissolved total mercury (THg) concentration, and particulate and dissolved methyl mercury (MeHg), concentration, in surface waters across the Sacramento / San Joaquin River Delta (SSJRD). This suite of monitoring approaches included: a) data collection at fixed continuous monitoring stations (CMS) outfitted with in-situ sensors, b) spatial mapping using boat-mounted flow-through sensors, and c) satellite-based remote sensing. The focus of this specific Child Page is to present all field and laboratory-based data associated with... Categories: Data; Tags: Lower Sacramento, San Francisco Bay, San Joaquin Delta, chemical analysis, datasets, All tags... dissolved metals, environment, field monitoring stations, field sampling, laboratory methods, mercury, mercury analysis, nutrient content (water), oxygen content (water), real-time monitoring and reporting, surface water quality, suspended material (water), water chemistry, water column reflectivity, water pH, water properties, water quality, water sampling, water sampling, water temperature, Fewer tags Flow through system (FTS) and spectral absorption / attenuation sensor (ACS) data from boat mapping transects within the Sacramento-San Joaquin River Delta The goal of this study was to develop a suite of inter-related water quality monitoring approaches capable of modeling and estimating the spatial and temporal gradients of particulate and dissolved total mercury (THg) concentration and particulate and dissolved methyl mercury (MeHg) concentration in surface waters across the Sacramento / San Joaquin River Delta (SSJRD). This suite of monitoring approaches included: a) data collection at fixed continuous monitoring stations (CMS) outfitted with in-situ sensors, b) spatial mapping using boat-mounted, flow-through, sensors and c) satellite-based remote sensing. The focus of this specific Child Page is to present all data collected during the underway boat mapping component... Categories: Data; Tags: California, Lower Sacramento, Sacramento, San Francisco Bay, San Joaquin Delta, All tags... Solano, Yolo, chemical analysis, dissolved organic compounds, environment, environmental proxies, field inventory and monitoring, field sampling, nutrient content (water), optical methods, oxygen content (water), real-time monitoring and reporting, salinity, surface water quality, suspended material (water), transect sampling, water chemistry, water column reflectivity, water pH, water properties, water sampling, water sampling, water temperature, Fewer tags High resolution and discrete temporal and spatial water-quality measurements in support of modeling mercury and methylmercury concentrations in surface waters of the Sacramento-San Joaquin River Delta The Sacramento / San Joaquin River Delta (SSJRD) is contaminated with legacy mercury (Hg) from historical mining and mineral processing activities throughout the watershed, as well as from contemporary atmospheric and industrial inputs. The current project was designed for the purpose of developing high-resolution spatial and temporal models for estimating concentrations of mercury species in surface waters of the SSJRD. The field component of the project brings together three high-resolution platforms for collecting water-quality data (fixed continuous monitoring stations (CMS) outfitted with in-situ sensors, spatial mapping using boat-mounted flow-through sensors, and satellite-based remote sensing) coupled with... Categories: Data; Tags: California, Environmental Health, Geochemistry, Lower Sacramento, Remote Sensing, All tags... Sacramento, San Francisco Bay, San Joaquin Delta, Solano, USGS Science Data Catalog (SDC), Water Quality, Yolo, chemical analysis, environment, environmental proxies, field inventory and monitoring, field monitoring stations, field sampling, mercury, mercury analysis, mercury contamination, optical methods, remote sensing, suspended material (water), transect sampling, water chemistry, water column reflectivity, water properties, water sampling, water sampling, Fewer tags Shallow Sediment Geochemistry in a Mercury-Contaminated Multi-Habitat Floodplain: Cache Creek Settling Basin, Yolo County, California (version 2.0, August 2021) The Cache Creek Settling Basin (CCSB) is a 13.3 km2 leveed basin located at the terminal drainage of the Cache Creek watershed, immediately NE of the town of Woodland (Yolo County), California and approximately 18 km NW of Sacramento, California. The basin was constructed by the U.S. Army Corps of Engineers (completed in 1937 and modified in 1993) for the purpose of trapping suspended sediment transported from the upper Cache Creek watershed during high-flow events, thus preventing sediment from entering the Yolo Bypass, a larger downstream floodwater conveyance and agricultural zone. In addition to trapping suspended sediment, the CCSB also traps sediment-associated mercury (Hg), which is particularly elevated... Categories: Data Release - Revised; Tags: Cache Creek Settling Basin, Sacramento River Watershed, Sacramento–San Joaquin River Delta, Total Maximum Daily Load (TMDL), USGS Science Data Catalog (SDC), All tags... Woodland, CA, Yolo Bypass, Yolo County, aquatic ecosystems, basins, biogeochemistry, floodplains, mercury, methylmercury, watershed management, wetlands, Fewer tags Geochemical Data for Mercury and Other Constituents in Redox-Manipulated Sediment Cores from Clear Lake, Lake County, California Clear Lake, located within the Coast Range west of California’s Central Valley, is the largest natural freshwater lake contained fully within the state and geologically is considered to be the oldest lake in North America. Clear Lake is popular for recreation and provides critical habitat to a wide variety of fish and bird species. Water quality in Clear Lake is degraded by both by mercury contamination and harmful algal blooms (HABs). The mercury contamination is largely associated with the Sulfur Bank Mercury Mine (SBMM), located on the eastern shore of the Oaks Arm in the northeastern portion of the Lake. The mine was operated intermittently from the 1870s until 1957 and is now a U.S. Environmental Protection... Categories: Data; Tags: California, Clear Lake, Geochemistry, Lake, USGS Science Data Catalog (SDC), All tags... chemical analysis, drilling and coring, environment, field sampling, geochemistry, iron, mercury, mercury contamination, sediment, sediment geochemistry, sediment-pollutant interaction, sulfur, Fewer tags Aqueous and solid phase geochemistry of water and mineral precipitates from draining adits in California and Colorado This dataset is a compilation of samples collected from draining mine adits, including water and mineral precipitates, from several mines in California and Colorado. The Golinsky, Copper Bluff, and Afterthought Mines (located in northern California) and the Gold King mine (located in southern Colorado) have historically operated to recover metals including copper, lead, zinc, gold, silver and other resources (Albers and Robertson, 1961; USGS, 2005; USEPA, 2015). Data reported include field parameters, water chemistry, solid phase mineralogy and solid phase chemistry. Water samples collected from the four mine sites in 2019 were analyzed for unfiltered and filtered (0.1-0.45 micrometer) major and trace elements and... Categories: Data; Tags: Afterthought Mine, California, Colorado, Copper Bluff Mine, Environmental Health, All tags... GGGSC, Geochemistry, Geology, Geophysics, and Geochemistry Science Center, Gold King Mine, Golinsky Mine, MRP, Mineral Resources, Mineral Resources Program, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Quality, Water Resources, abandoned mines and quarries, biota, earth sciences, environment, geochemistry, geology, groundwater and surface-water interaction, inland waters, mine drainage, mineralogy, oxidation and reduction, water chemistry, water quality, x-ray diffraction, Fewer tags Mercury in fishes from Clear Lake, California, 2019 and 2020 (ver. 2.0, February 2022) Comma-separated values (.csv) file containing data related to mercury in fishes collected from Clear Lake, California. This data release supersedes Pierce, J.R., Feyrer, F.V., Young, M.J., Enos, E.R., Clause, J.K., Alpers, C.N., and Eagles-Smith, C.A., 2022, Mercury in fishes from Clear Lake, California, 2019 and 2020: U.S. Geological Survey data release, https://doi.org/10.5066/P96912PN. Please contact fresc_outreach@usgs.gov for access. Categories: Data; Tags: Aquatic Biology, Clear Lake, CA, Ecology, Environmental Health, USGS Science Data Catalog (SDC), All tags... Water Quality, Wildlife Biology, biota, chemical analysis, contamination and pollution, environment, inlandWaters, Fewer tags Environmental chemistry from selected sites in Lakeport, Lake County, California (version 1.1, August 2023) This data release documents chemical analyses of environmental samples collected by the U.S. Geological Survey (USGS) in Lakeport (Lake County, California) during July 11-12, 2022. Environmental samples were collected at selected sites to assess the effects of lead-based paint on soil chemistry. This sampling was made as part of a broader study to attribute sources of lead in soils in cooperation with the California Department of Toxic Substances Control (DTSC) for their Lead-Acid Battery Recycling Facility Investigation and Cleanup (LABRIC) program. Results of soil sampling and chemical analyses are included in the data-release component entitled "Soils chemistry from selected sites in Lakeport, Lake County, California"... Categories: Data Release - Revised; Tags: California, Environmental Health, Geochemistry, Lake County, Lakeport, All tags... Paint, USGS Science Data Catalog (SDC), environment, geoscientificInformation, health, lead, soil chemistry, x-ray fluorescence, Fewer tags Geochemical and mineralogical data for mine waste from Sulphur Bank Mercury Mine, Lake County, California This data release presents geochemical and mineralogical data from mine waste at Sulphur Bank Mercury Mine (SBMM). This work is performed in cooperation with the US Environmental Protection Agency (EPA) to characterize sources of contamination at the SBMM cleanup site. A total of 23 samples were collected: 15 samples were collected by USGS from various waste piles (14 composites from the top 0-5cm of material, and one composite from six discrete ore hand samples), six composite samples were generated from drill cores from monitoring wells installed by EPA contractor EA Engineering, Science, and Technology, Inc., in the waste rock dam in 2022. Two additional hand samples - one cinderblock and one scoria - were collected... Categories: Data; Tags: California, Clearlake Oaks, Geochemistry, Lake, North America, All tags... Sulphur Bank Rancheria, USGS Science Data Catalog (SDC), United States, Upper Cache, geochemistry, geoscientificInformation, mine waste, mineralogy, Fewer tags High resolution temporal surface water data from four continuous monitoring stations within the Sacramento-San Joaquin River Delta The goal of this study was to develop a suite of inter-related water quality monitoring approaches capable of modeling and estimating the spatial and temporal gradients of particulate and dissolved total mercury (THg) concentration, and particulate and dissolved methyl mercury (MeHg), concentration, in surface waters across the Sacramento / San Joaquin River Delta (SSJRD). This suite of monitoring approaches included: a) data collection at fixed continuous monitoring stations (CMS) outfitted with in-situ sensors, b) spatial mapping using boat-mounted flow-through sensors, and c) satellite-based remote sensing. The focus of this specific child page is to document the temporal high-resolution (15 minute) in-situ sensor... Categories: Data; Tags: California, San Joaquin Delta, environment, field monitoring stations, surface water (non-marine), All tags... surface water quality, time series datasets, water chemistry, water circulation, water pH, water properties, water quality, water sampling, water temperature, Fewer tags Geochemical, mineralogical, and grain-size data for in-situ solid materials and suspended sediment at Malakoff Diggins State Historic Park, Nevada County, California This dataset includes data for in-situ solid materials and suspended sediments from surface-water samples, as well as surface-water chemistry from samples collected during storm events at Malakoff Diggins State Historic Park, Nevada County, California. In-situ solid samples were collected during 2015 along six vertical transects along the cliff walls of the mine pit. Surface-water samples were collected during 2014 and 2016 from Hiller Tunnel and from drainage networks below the in-situ sampling sites during runoff conditions. In-situ and suspended-sediment samples were analyzed for grain-size distribution, X-ray diffraction (XRD) for quantitative mineralogy, inductively coupled plasma - mass spectrometry (ICP-MS)... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Ancestral Yuba River, California, Humbug Creek drainage, Malakoff Diggins State Historic Park, Nevada County, All tags... Sierra Nevada Mountains, USGS Science Data Catalog (SDC), Yuba River watershed, clay minerals, erosion, geochemistry, gold mining, grain-size distribution, hydraulic mining, legacy mining effects, mineralogy, sediment transport, suspended material (water), Fewer tags Mercury stable isotopes in biota, sediment, groundwater, and waste piles, Clear Lake area, Lake County, California, 2019-2022 Samples were collected from Clear Lake, California from 2019-2022 by the U.S. Geological Survey (USGS) California Water Science Center, the USGS Forest and Rangeland Ecosystem Science Center (FRESC), the US Environmental Protection Agency, and EA Engineering Science and Technology Inc. to assess the extent and cycling of legacy mercury (Hg) contamination from Sulphur Bank Mine. Samples of waste rock, sediments, groundwater, and biological tissue (zooplankton, bluegill, smallmouth bass, Mississippi silversides, and largemouth bass) were analyzed for Hg stable isotopes by the U.S. Geological Survey Mercury Research Laboratory. Mercury concentrations for sediments, waste rocks, and groundwaters are included within... Categories: Data; Tags: California, Clear Lake, California, Environmental Health, Lake County, California, USGS Science Data Catalog (SDC), All tags... fish, groundwater, isotopic analysis, mercury contamination, mine waste, sediment, Fewer tags Shallow Sediment Geochemistry in a Mercury-Contaminated Multi-Habitat Floodplain: Cache Creek Settling Basin, Yolo County, California, 2010–17 Note: This data release has been superseded by version 2.0, available here: https://doi.org/10.5066/P9MDXR3M. The Cache Creek Settling Basin (CCSB) is a 13.3 km2 leveed basin located at the terminal drainage of the Cache Creek watershed, immediately NE of the town of Woodland (Yolo County), California and approximately 18 km NW of Sacramento, California. The basin was constructed by the U.S. Army Corps of Engineers (completed in 1937 and modified in 1993) for the purpose of trapping suspended sediment transported from the upper Cache Creek watershed during high-flow events, thus preventing sediment from entering the Yolo Bypass, a larger downstream floodwater conveyance and agricultural zone. In addition to trapping... Tags: Cache Creek Settling Basin, Sacramento River Watershed, Sacramento–San Joaquin River Delta, Total Maximum Daily Load (TMDL), USGS Science Data Catalog (SDC), All tags... Woodland, CA, Yolo Bypass, Yolo County, aquatic ecosystems, basins, biogeochemistry, floodplains, mercury, methylmercury, watershed management, wetlands, Fewer tags Field and Laboratory data of pipe scale forming in acid mine drainage pipelines at Iron Mountain and Leviathan Mines, California Pipelines carrying acid mine drainage at Iron Mountain and Leviathan Mines (CA, USA) develop pipe scale, a precipitate that forms inside the pipelines. The U.S. Geological Survey is studying the composition of the pipe scale and the acid mine drainage water flowing through the pipeline through field samples and laboratory experimentation. This data release provides the data from the studies of the pipelines from 2012-2015 as a data compendium to a journal publication, and includes (1) water chemistry of the acid mine drainage; (2) mineralogy of pipe scale (X-ray diffraction and chemical extractions); and (3) laboratory experiment results. Categories: Data; Tags: Alpine County, California, Geochemistry, Iron Mountain Mine, Leviathan Mine, All tags... Mine drainage, Mineralogy, Mineralogy, Pipe scale, Pipelines, Remediation, Shasta County, USGS Science Data Catalog (SDC), Water Quality, X-ray diffraction, biogeochemical cycling, geochemical processes, oxidation and reduction, water chemistry, Fewer tags Geochemical data for water, sediment, and biota in Lake Combie, California, 2017-2021 This dataset includes field measurements and laboratory analyses of surface water, bottom water (sediment-water interface), surficial (0-2 cm) sediment, pore water (0-2 cm), and biota collected in Lake Combie, California, from September 2017 through August 2021. The study area includes six sites within the reservoir where discrete samples of surface water, bottom water, sediment, and pore water were taken along the length of the reservoir at the following distances from the spillway: 0.07 miles, 0.5 miles, 0.9 miles, 1.2 miles, 1.3 miles, and 1.4 miles. The within-reservoir sites were sampled during September 2017, February 2018, and May 2018, prior to a large sediment removal operation, and again during September... Categories: Data; Tags: California, Geochemistry, Hydrology, Lake Combie, Limnology, All tags... USGS Science Data Catalog (SDC), Upper Bear, Water Quality, Zooplankton, bioaccumulation, biota, chemical analysis, dissolved metals, environment, field sampling, fish, geoscientificInformation, inlandWaters, mercury, mercury analysis, mercury contamination, methyl mercury, methylmercury, optical methods, reservoir, sediment analysis, suspended material (water), water chemistry, water properties, water quality, Fewer tags Geochemical data for water, sediment, and biota in areas affected by historical mining, northwestern Sierra Nevada and Trinity Mountains, California This dataset includes data for water, sediment, and biota samples collected at 250 locations in the northwestern Sierra Nevada and the Trinity Mountains during 1999–2012. The locations were chosen to assess potential effects from historical mining, with a focus primarily on mercury contamination associated with placer gold mines in the Sierra Nevada and the Trinity Mountains, and a hard-rock mercury mine in the Trinity Mountains. Trace elements and major elements were analyzed in selected samples. All analyses of mercury, methylmercury, and (or) trace and major elements in water and sediment were performed by U.S. Geological Survey laboratories. Biota samples (invertebrates, fish, and frogs) were analyzed for mercury,... Categories: Data; Tags: Aquatic Biology, California, Environmental Health, Geochemistry, Hydrology, All tags... Mineral Resources, Sedimentology, USGS Science Data Catalog (SDC), Water Quality, biota, chemical analysis, geoscientificInformation, mercury contamination, Fewer tags Spectral data for discrete surface water samples from the Sacramento-San Joaquin River Delta The goal of this study was to develop a suite of inter-related water quality monitoring approaches capable of modeling and estimating the spatial and temporal gradients of particulate and dissolved total mercury (THg) concentration, and particulate and dissolved methyl mercury (MeHg), concentration, in surface waters across the Sacramento / San Joaquin River Delta (SSJRD). This suite of monitoring approaches included: a) data collection at fixed continuous monitoring stations (CMS) outfitted with in-situ sensors, b) spatial mapping using boat-mounted flow-through sensors, and c) satellite-based remote sensing. The focus of this specific Child Page is to present laboratory measured spectral data associated with discrete... Categories: Data; Tags: California, Lower Sacramento, Sacramento, San Francisco Bay, San Joaquin Delta, All tags... San Joaquin Delta, Solano, Yolo, chemical analysis, dissolved metals, environment, environmental proxies, field monitoring stations, field sampling, optical methods, suspended material (water), water chemistry, water column reflectivity, water properties, water sampling, water sampling, Fewer tags 1 2 »