Research Hydrologist
California Water Science Center
Email:
bjurgens@usgs.gov
Office Phone:
916-278-3275
Fax:
916-278-3070
ORCID:
0000-0002-1572-113X
Location
Placer Hall
6000 J Street
Sacramento
, CA
95819-6129
US
Supervisor:
Miranda S Fram
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Galvanic corrosion of lead in water distribution systems can occur when lead pipe or lead solder is in contact with a dissimilar metal such as copper. If the source water entering those systems has a relatively elevated chloride-to-sulfate mass ratio (CSMR), the potential for galvanic corrosion to occur is elevated (Gregory 1985; Edwards and Triantafyllidou, 2007), especially in water with low values of alkalinity (Nguyen and others, 2011). Values of CSMR were computed for untreated groundwater samples from 26,631 locations in the United States. Three levels, identified by Nguyen and others (2011), were used to classify CSMR values relative to their potential for promoting galvanic corrosion of lead. The three-level...
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Data provided here describe geochemical correction of carbon-14 in dissolved inorganic carbon (DIC) for groundwater age dating. Datasets include major ion chemistry of groundwater samples, model parameter inputs, and final corrected carbon-14 in DIC. Geochemical correction was completed in two phases: determination of reactive phase mole transfers through an inverse geochemical model (PHREEQC; Parkhurst and Appleo, 1992) and tracking of isotopic mass transfer among phases (NetpathXL; Parkhusrtand Charlton, 2008). Parkhurst, D.L., and Appelo, C.A.J., 2013, Description of input and examples for PHREEQC version 3—A computer program for speciation, batch-reaction, one-dimensional transport, and inverse geochemical...
Tags: Cenozoic,
Connecticut,
Holocene,
Idaho,
Illinois, All tags...
Indiana,
Iowa,
Kansas,
Maine,
Massachusetts,
Michigan,
Minnesota,
Missouri,
Montana,
NAWQA,
Nebraska,
New Hampshire,
New Jersey,
New York,
North Dakota,
Ohio,
Pennsylvania,
Pleistocene,
Quaternary,
Rhode Island,
South Dakota,
USGS Science Data Catalog (SDC),
Vermont,
Washington,
Wisconsin,
alkalinity,
aqueous solutions,
atmospheric chemistry,
calcium,
carbon cycle,
carbonate minerals,
carbonate rocks,
chemical equilibrium,
chemical interactions,
chemical precipitation,
chemical speciation,
cycle 3,
data release,
dissolved carbon dioxide,
dissolved gases,
exchangeable cations,
gas exchange,
geochemical processes,
geochemistry,
glacial deposits,
glacial drift,
glacial soils,
groundwater,
groundwater,
groundwater flow,
groundwater quality,
half life,
hydrogeochemistry,
hydrogeology,
isotope fractionation,
magnesium,
mathematical simulation,
minerals,
rain,
soil chemistry,
soil chemistry,
soil sciences,
soil water,
soil-plant-atmosphere interactions,
solubility,
stable isotopes,
thermodynamics,
unsaturated flow,
vadose zone,
water analysis,
water chemistry,
water quality, Fewer tags
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This data release documents three Microsoft Excel tables that contain estimates of tritium in precipitation data for the continental United States. Table 1 contains estimates of tritium in precipitation for precipitation stations located in the continental United States. Measured precipitation data are formatted in regular font while correlated data are italicized. Table 2 contains tritium in precipitation for ninety-six 2-degree latitude by 5-degree longitude quadrangles covering the continental U.S. Latitudes are north of the equator and longitudes are west of the prime meridian. Please see the processing steps below and the main manuscript for additional details on the results presented in this table. Table 3...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Geochemistry,
Hydrogeology,
NAWQA,
National Water Quality Program,
Tritium, All tags...
USGS Science Data Catalog (SDC),
Water Quality,
continental United States,
cycle 3,
groundwater,
groundwater age,
precipitation,
tracers,
water quality, Fewer tags
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This data release consists of data (in four tables) for assessing the time scales of arsenic variability in three production wells in New Hampshire; tables that describe the data fields in the data tables are also included in the data release. High-frequency (every 5 to 15 minutes) and bi-monthly water-quality monitoring of a bedrock-aquifer domestic well (425651070573701), a bedrock-aquifer public-supply well (425400070545401), and a glacial-aquifer public-supply well (425311070535801) was completed between 2014 and 2018. Concentrations of arsenic and other geochemical constituents and dissolved gases, as tracers of groundwater age, were measured on a bimonthly basis; physicochemical data, including specific conductance,...
Tags: Arsenic,
Bedrock aquifer,
Cycle 3,
Groundwater,
Kensington, New Hampshire, All tags...
NAWQA,
New England,
New England Coastal Basins,
New Hampshire,
Rockingham County, New Hampshire,
Seabrook, New Hampshire,
USGS Science Data Catalog (SDC),
Water quality,
Water supply,
glacial aquifer,
groundwater age,
groundwater geochemistry,
groundwater quality,
noble gases, Fewer tags
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Groundwater age distribution and susceptibility to natural and anthropogenic contaminants were assessed for selected principal aquifers of the Western United States: the Central Valley aquifer system (CVAL), the Basin and Range basin-fill aquifers (BNRF), the Rio Grande aquifer system (RIOG), the High Plains aquifer (HPAQ), the Columbia Plateau basaltic-rock aquifers (CLPT), and the Colorado Plateaus aquifers (COPL). Groundwater ages were estimated by calibration of environmental tracers (tritium, tritiogenic helium-3, chlorofluorocarbons, sulfur hexafluoride, carbon-14 and radiogenic helium-4) to lumped parameter models (LPMs) for 1,353 samples from 1,182 sample locations. Groundwater samples were collected from...
Categories: Data;
Tags: Arizona,
Basin and Range Aquifers,
California,
Central Valley Aquifer,
Colorado, All tags...
GAMA,
High Plain Aquifer,
Idaho,
Kansas,
NAWQA,
Nebraska,
Nevada,
New Mexico,
Oklahoma,
Oregon,
Rio Grande Aquifer,
Texas,
USGS Science Data Catalog (SDC),
Utah,
Washington,
Water Resources,
Wyoming,
cycle 3,
dissolved gases,
groundwater,
groundwater age,
groundwater quality,
lumped parameter model,
recharge temperature,
western principal aquifers, Fewer tags
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