Hydrogeologic setting east of a low-level radioactive-waste disposal site near Sheffield, Illinois
Water-Resources Investigations Report
84-4183
By: J.B. Foster, George Garklavs, and G.W. Mackey
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Abstract
Core samples from 45 test wells and 4 borings were used to describe the glacial geology of the area east of the low-level radioactive-waste disposal site near Sheffield, Bureau County, Illinois. Previous work has shown that shallow ground water beneath the disposal site flows east through a pebbly-sand unit of the Toulon Member of the Glasford Formation. The pebbly sand was found in core samples from wells in an area extending northeast from the waste-disposal site to a strip-mine lake and east along the south side of the lake. Other stratigraphic units identified in the study area are correlated with units found on the disposal site. The pebbly-sand unit of the Toulon Member grades from a pebbly sand on site into a coarse gravel with sand and pebbles towards the lake. The Hulick Till Member, a key bed, underlies the Toulon Member throughout most of the study area. A narrow channel-like depression in the Hulick Till is filled with coarse gravelly sand of the Toulon Member. The filled depression extends eastward from near the northeast corner of the waste-disposal site to the strip-mine lake. (USGS)
Suggested Citation
Foster, J., Garklavs, G., and Mackey, G., 1984, Hydrogeologic setting east of a low-level radioactive-waste disposal site near Sheffield, Illinois: U.S. Geological Survey Water-Resources Investigations Report 84-4183, iv, 20 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri844183.
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Hydrogeologic setting east of a low-level radioactive-waste disposal site near Sheffield, Illinois |
| Series title | Water-Resources Investigations Report |
| Series number | 84-4183 |
| DOI | 10.3133/wri844183 |
| Year Published | 1984 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | iv, 20 p. :ill., maps ;28 cm. |