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Chloride Concentration Data and Isochlors for Groundwater in Kings, Queens and Nassau Counties, Long Island, New York

Dates

Start Date
1889
End Date
2022
Publication Date

Citation

Finkelstein, J.S., Stumm, F., Williams, J.H., and Lange, A., 2024, Hydrogeologic framework and chloride data for Kings, Queens, and Nassau counties, Long Island, New York: U.S. Geological Survey data release, https://doi.org/10.5066/P97WN72B.

Summary

This child item dataset contains 22,871 records of chloride concentration in groundwater across Kings, Queens, and Nassau Counties in Long Island, New York. Compiled records span the period from 1889 to 2022. Records are provided in a shapefile of point data compiled from several sources detailed in the metadata. Chloride isolines (isochlors) are also included as a shapefile of interpolated point data representing average conditions over 11 twenty-year time periods in the two main Long Island aquifer complexes (Upper glacial-Jameco-Magothy and North Shore-Lloyd). Interpolation methods are discussed in Stumm and others (2024). These data are accessible as an online webmap: https://ny.water.usgs.gov/maps/lisustainabilityphase1viewer/

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Attached Files

Click on title to download individual files attached to this item.

Chloride_Isolines.zip 393.63 KB application/zip
Shapefile: Chloride_Point_Data.zip
Chloride_Point_Database.zip 475.73 KB

Purpose

This child item dataset supports a multiyear cooperative study with the New York State Department of Environmental Conservation to evaluate the sustainability of Long Island’s sole-source aquifer system.

Additional Information

Shapefile Extension

files
nameChloride_Point_Database.zip
contentTypeapplication/x-zip-compressed
pathOnDisk__disk__9a/59/09/9a5909abf95ef74ddb97d4764612913ef935bb74
size487144
dateUploadedMon Jun 10 08:27:53 MDT 2024
checksum
value5c383c303332161b0641174039146a76
typeMD5
nameChloride_Point_Data

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