Chemical Concentrations and Microbiological Results for Assessment of Mixed-Organic/Inorganic Chemical Exposures in Tapwater in Mead, Nebraska, June 2022 and January 2023
Dates
Publication Date
2023-10-04
Start Date
2022-06-13
End Date
2023-01-17
Citation
Meppelink, S.M., Romanok, K.M., Bradley, P.M., Smalling, K.L., Givens, C.E., Hladik, M.L., Gross, M.S., Gray, J.L., Kanagy, L.K., McCleskey, R.B., and Roth, D.A., 2023, Chemical concentrations and microbiological results for assessment of mixed-organic/inorganic chemical exposures in Mead, Nebraska, June 2022 and January 2023: U.S. Geological Survey data release, https://doi.org/10.5066/P94FUNI9.
Summary
In the United States and globally, the lack of data on contaminant exposure from unregulated private-well point-of-use (POU) tapwater (TW) is a recognized public health data gap and an obstacle to risk management and homeowner decision making. Mead, Nebraska, is an agricultural community about 30 miles west of Omaha. To help address the lack of data on broad contaminant exposures in TW sourced from private water wells, a total of 22 samples were collected from 18 private wells during June 2022 and January 2023 and analyzed for 495 organic compounds, 34 inorganic constituents, and 11 microbial groups. The organic compounds included pesticides, pharmaceuticals, volatile organic compounds (VOCs), disinfection byproducts (DBPs), per- and [...]
Summary
In the United States and globally, the lack of data on contaminant exposure from unregulated private-well point-of-use (POU) tapwater (TW) is a recognized public health data gap and an obstacle to risk management and homeowner decision making. Mead, Nebraska, is an agricultural community about 30 miles west of Omaha. To help address the lack of data on broad contaminant exposures in TW sourced from private water wells, a total of 22 samples were collected from 18 private wells during June 2022 and January 2023 and analyzed for 495 organic compounds, 34 inorganic constituents, and 11 microbial groups. The organic compounds included pesticides, pharmaceuticals, volatile organic compounds (VOCs), disinfection byproducts (DBPs), per- and polyfluoroalkyl substances (PFAS), and cyanotoxins. An additional three samples from existing private POU water filters were collected and analyzed only for pesticides. Pesticides and disinfection byproducts (DBP) were analyzed at the USGS Organic Chemistry Research Laboratory (OCRL) in Sacramento, California. Pharmaceuticals, VOCs, and PFAS were analyzed at the U.S. Geological Survey (USGS) National Water Quality Laboratory (NWQL) in Denver, Colorado. Cyanotoxins were analyzed at the USGS Organic Geochemistry Research Laboratory (OGRL) in Lawrence, Kansas. Inorganic constituents were analyzed at the USGS Redox Chemistry Laboratory (RCL) in Boulder, Colorado. Microbiological samples were analyzed by the USGS Michigan Bacterial Research Laboratory (MIBaRL) in Lansing, Michigan.
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TW2022NE_DR.xml Original FGDC Metadata
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TW2022NE_DR_T1.csv
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TW2022NE_DR_T4.csv
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TW2022NE_DR_T5.csv
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TW2022NE_DR_T6.csv
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TW2022NE_DR_T7.csv
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TW2022NE_DR_T2.csv
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TW2022NE_DR_T3.csv
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Purpose
To help address the lack of data on contaminant exposures in tapwater sourced from private water wells in rural agricultural areas. This study was part of a larger U.S. Geological Survey Ecosystems Mission Area, Environmental Health Program, Drinking Water and Wastewater Infrastructure Integrated Science Team Tapwater Exposure Study to assess human exposure to potential threats from complex mixtures of contaminants in drinking water across the country.
This study was funded by the U.S. Geological Survey Ecosystem Mission Area's Environmental Health Program (Contaminant Biology and Toxic Substances Hydrology).
