Organization • | Illinois State Geological Survey | [X] |
| 1: | | Title: | | | | Volume/Number: | | | | Issuing Agency: | | | | Description: | Nearly half of the residents living in the karst regions of St. Clair, Monroe, and Randolph Counties in southwestern Illinois use the shallow karst aquifer of Illinois sinkhole plain as their source for potable water. This study was undertaken to better understand the sources and pathways of contaminants in the areas wells and streams. The investigation used chemical and isotope analyses to characterize the quality and general geochemistry of the groundwater in the karst aquifer of the sinkhole plain region and to determine the dominant sources of anomalously large concentrations of nitrate in the regions groundwater. | | | Date Created: | 11 29 2007 | | | Agency ID: | Circular 570 | | | ISL ID: | 000000007016 Original UID: 4679 FIRST WORD: Groundwater | |
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