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R code that determines groundwater and surface water source fractions for public-supply water service areas, counties, and 12-digit hydrologic units

Dates

Publication Date
Time Period
2019

Citation

Luukkonen, C.L., Alzraiee, A.H., Larsen, J.D., Martin, D.J., Herbert, D.M., Buchwald, C.A., Houston, N.A., Valseth, K.J., Paulinski, S., Miller, L.D., Niswonger, R.G., Stewart, J.S., Dieter, C.A., and Miller, O.L., 2023, Public supply water use reanalysis for the 2000-2020 period by HUC12, month, and year for the conterminous United States (ver. 2.0, August 2024): U.S. Geological Survey data release: https://doi.org/10.5066/P9FUL880.

Summary

This child item describes R code used to determine water source fractions (groundwater (GW), surface water (SW), or spring (SP)) for public-supply water service areas, counties, and 12-digit hydrologic unit codes (HUC12) using information from a proprietary dataset from the U.S. Environmental Protection Agency. Water-use volumes per source were not available from public-supply systems so water source fractions were calculated by the number of withdrawal source types (GW/SW). For example, for a public supply system with three SW intakes and one GW well, the fractions would be 0.75 SW and 0.25 GW. This dataset is part of a larger data release using machine learning to predict public supply water use for 12-digit hydrologic units from [...]

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Attached Files

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WaterSource_readme.txt
“README file”
7.26 KB text/plain
County_SourceFrac.csv
“county water source fractions”
88.35 KB text/csv
HUC12_SourceFrac.csv
“HUC12 water source fractions”
596.73 KB text/csv
WSA_AGIDF_SourceFrac.csv
“water service area water source fractions”
1.04 MB text/csv
FCL_Data_Water_Sources_Flagged_wHUC_DR.R
“water source fraction code”
18.49 KB text/x-rsrc

Purpose

This water-use reanalysis supports the Water Availability and Use Science Program goals of determining the quantity and quality of water that is available for human and ecological uses, now and in the future and helps to identify where and when the Nation may have challenges meeting its demand for water because of insufficient water quantity or quality. National data, consistently estimated, that accounts for water removed (withdrawal) and consumed, respectively, from a groundwater or surface-water source provides needed information of how water is used for public supply and can be used to evaluate the balance between supply and demand.

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