Geochemical identification of sources of salinity in surface and ground waters in central McPherson County, Kansas

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Authors:Whittemore, Donald O.
Author Affiliations:Primary:
Kansas Geological Survey, Lawrence, KS, United States
Source:Open-File Report - Kansas Geological Survey, No.97-78, 24p. Publisher: Kansas Geological Survey, Lawrence, KS, United States
Publication Date:1997
Note:In English. 9 refs.
Summary:Ground-water quality problems in the area of the municipal landfill southeast of McPherson, Kansas led the Kansas Department of Health and Environment (KDHE) and Equus Beds Groundwater Management District No. 2 (GMD2) to investigate the sources of the contamination (Figure 1). Although volatile organic compounds had been discovered in water samples from monitoring wells close to the site, saline ground waters were also found in these and in domestic wells farther from the landfill. Four sources of salinity were considered as possible contributors to the high chloride content of the ground waters: the landfill, an oil field to the east of the landfill, treated wastewater in Dry Turkey Creek, and the Permian bedrock underlying the Equus Beds aquifer. The Kansas Department of Health and Environment initially requested some assistance from the Kansas Geological Survey (KGS) in the identification of the salinity source(s). Although the KGS gave the KDHE a general indication of the primary source, the data were too limited to clearly separate salinity sources over the entire area of the landfill and nearby domestic wells. The GMD2 then requested assistance from the KGS to analyze samples from most of the available monitoring wells next to the landfill and domestic wells south and southwest of the landfill, and determine the salinity source(s) based on geochemical identification methods. The KGS used chemical data generated from this and previous studies in the area, well construction information for wells, and other hydrogeologic investigations in the region to complete this report.
Subjects:Alkali metals; Alkaline earth metals; Alkalinity; Aquifers; Bedrock; Brines; Bromide ion; Bromine; Calcium; Chloride ion; Chlorine; Geochemistry; Ground water; Halogens; Hydrochemistry; Landfills; Magnesium; Metals; Mixing; Movement; Nitrate ion; Observation wells; Organic compounds; Paleozoic; Permian; Petroleum; Pollution; Salinity; Sampling; Saturated zone; Sodium; Sulfate ion; Surface water; Volatile organic compounds; Volatiles; Waste disposal; Waste water; Water pollution; Water quality; Water wells; Kansas; McPherson County Kansas; United States; Dry Turkey Creek; Equus Beds Aquifer
Coordinates:N380900 N383600 W0972300 W0975500
Record ID:2018075469
Copyright Information:GeoRef, Copyright 2018 American Geosciences Institute.
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