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Mixed Organic and Inorganic Tapwater Results in the Greater Chicago Area, USA, 2017-2019

Metadata Updated: October 29, 2023

This data set contains the result for inorganic constituents and organic compounds collected from tapwater locations, as well as water filtration plants, in East Chicago, Indiana, and Chicago, Illinois in 2017. Additionally quality assurance data collected was summarized. Residential samples collected were done so directly from residential kitchen taps (faucets) as is, it was noted if a point-of-use filtration device was utilized by the homeowner, but they were not removed for sampling. Samples were collected at various times of the day, without regard to previous water use. Results were analyzed using ToxCast, and Exposure Activity Ratios (EARs) are presented. Water filtration plant samples were taken from Lake Michigan, and non-regulatory, pre-distributional faucets. Samples were analyzed at the U.S. Geological Survey, National Water Quality Laboratory, Denver, Colorado, Organic Chemistry Laboratory, Sacramento, California, and Organic Geochemistry Laboratory, Lawrence, Kansas. Additionally, per- and polyfluoroalkyl substances were analyzed at the Colorado School of Mines, Golden, Colorado.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023

Metadata Source

Harvested from DOI EDI

Additional Metadata

Resource Type Dataset
Metadata Created Date June 1, 2023
Metadata Updated Date October 29, 2023
Publisher U.S. Geological Survey
Identifier USGS:5c6db7cde4b0fe48cb402341
Data Last Modified 20200827
Category geospatial
Public Access Level public
Bureau Code 010:12
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id cfd336d7-b80c-44c4-b28f-d587cf271d52
Harvest Source Id 52bfcc16-6e15-478f-809a-b1bc76f1aeda
Harvest Source Title DOI EDI
Metadata Type geospatial
Old Spatial -87.8755,41.6237,-87.4365,41.9084
Publisher Hierarchy White House > U.S. Department of the Interior > U.S. Geological Survey
Source Datajson Identifier True
Source Hash 8fa49f50e775f3af74220dc545247de142d7f00069de04542f2318a0a0dcdc41
Source Schema Version 1.1
Spatial {"type": "Polygon", "coordinates": -87.8755, 41.6237, -87.8755, 41.9084, -87.4365, 41.9084, -87.4365, 41.6237, -87.8755, 41.6237}

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