Search Results - "BELITZ, Kenneth"
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Occurrence and concentrations of pharmaceutical compounds in groundwater used for public drinking-water supply in California
Published in The Science of the total environment (15-08-2011)“…Pharmaceutical compounds were detected at low concentrations in 2.3% of 1231 samples of groundwater (median depth to top of screened interval in wells=61m)…”
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A hybrid machine learning model to predict and visualize nitrate concentration throughout the Central Valley aquifer, California, USA
Published in The Science of the total environment (01-12-2017)“…Intense demand for water in the Central Valley of California and related increases in groundwater nitrate concentration threaten the sustainability of the…”
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3
Factors Controlling the Regional Distribution of Vanadium in Groundwater
Published in Ground water (01-07-2010)“…Although the ingestion of vanadium (V) in drinking water may have possible adverse health effects, there have been relatively few studies of V in groundwater…”
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4
A remote sensing approach for estimating the location and rate of urban irrigation in semi-arid climates
Published in Journal of hydrology (Amsterdam) (11-01-2012)“…► The location of urban irrigation was estimated using remote sensing. ► The irrigation rate was computed using the NDVI surplus. ► The computed rate…”
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5
Volatile fluxes through the Big Bend section of the San Andreas Fault, California: Helium and carbon-dioxide systematics
Published in Chemical geology (15-02-2013)“…To investigate the source of volatiles and their relationship to the San Andreas Fault System (SAFS), 18 groundwater samples were collected from wells near the…”
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6
Probability of Detecting Perchlorate under Natural Conditions in Deep Groundwater in California and the Southwestern United States
Published in Environmental science & technology (15-02-2011)“…We use data from 1626 groundwater samples collected in California, primarily from public drinking water supply wells, to investigate the distribution of…”
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Identifying the location and population served by domestic wells in California
Published in Journal of hydrology. Regional studies (01-03-2015)“…California, USA. Identification of groundwater use is an important step in the regional-scale assessment of groundwater quality. In California, 1990 US Census…”
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Effects of Groundwater Development on Uranium: Central Valley, California, USA
Published in Ground water (01-11-2010)“…Uranium (U) concentrations in groundwater in several parts of the eastern San Joaquin Valley, California, have exceeded federal and state drinking water…”
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Over a third of groundwater in USA public-supply aquifers is Anthropocene-age and susceptible to surface contamination
Published in Communications earth & environment (01-07-2022)“…The distribution of groundwater age is useful for evaluating the susceptibility and sustainability of groundwater resources. Here, we compute the aquifer-scale…”
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10
Verification, Validation, and Confirmation of Numerical Models in the Earth Sciences
Published in Science (American Association for the Advancement of Science) (04-02-1994)“…Verification and validation of numerical models of natural systems is impossible. This is because natural systems are never closed and because model results…”
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11
Elevated Manganese Concentrations in United States Groundwater, Role of Land Surface–Soil–Aquifer Connections
Published in Environmental science & technology (02-01-2019)“…Chemical data from 43 334 wells were used to examine the role of land surface–soil–aquifer connections in producing elevated manganese concentrations (>300…”
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Estimating domestic well locations and populations served in the contiguous U.S. for years 2000 and 2010
Published in The Science of the total environment (15-10-2019)“…Domestic wells provide drinking water supply for approximately 40 million people in the United States. Knowing the location of these wells, and the populations…”
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Pesticides and Pesticide Degradates in Groundwater Used for Public Supply across the United States: Occurrence and Human-Health Context
Published in Environmental science & technology (05-01-2021)“…This is the first assessment of groundwater from public-supply wells across the United States to analyze for >100 pesticide degradates and to provide…”
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14
Hormones and Pharmaceuticals in Groundwater Used As a Source of Drinking Water Across the United States
Published in Environmental science & technology (19-03-2019)“…This is the first large-scale, systematic assessment of hormone and pharmaceutical occurrence in groundwater used for drinking across the United States…”
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Domestic well locations and populations served in the contiguous U.S.: 1990
Published in The Science of the total environment (31-12-2017)“…We estimate the location and population served by domestic wells in the contiguous United States in two ways: (1) the “Block Group Method” or BGM, uses data…”
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Fluoride occurrence in United States groundwater
Published in The Science of the total environment (25-08-2020)“…Data from 38,105 wells were used to characterize fluoride (F) occurrence in untreated United States (U.S.) groundwater. For domestic wells (n = 11,032), water…”
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Assessing the Lead Solubility Potential of Untreated Groundwater of the United States
Published in Environmental science & technology (19-03-2019)“…In the U.S., about 44 million people rely on self-supplied groundwater for drinking water. Because most self-supplied homeowners do not treat their water to…”
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Lithium in groundwater used for drinking-water supply in the United States
Published in The Science of the total environment (01-05-2021)“…Lithium concentrations in untreated groundwater from 1464 public-supply wells and 1676 domestic-supply wells distributed across 33 principal aquifers in the…”
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Volatile organic compounds in groundwater used for public supply across the United States: Occurrence, explanatory factors, and human-health context
Published in The Science of the total environment (25-06-2022)“…This systematic assessment of occurrence for 85 volatile organic compounds (VOCs) in raw (untreated) groundwater used for public supply across the United…”
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Large decadal-scale changes in uranium and bicarbonate in groundwater of the irrigated western U.S
Published in The Science of the total environment (15-05-2017)“…Samples collected about one decade apart from 1105 wells from across the U.S. were compiled to assess whether uranium concentrations in the arid climate are…”
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