Hydrologic effects of storing liquified sewage sludge on strip-mined land, Fulton County, Illinois
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Abstract
The water table near four sewage storage basins in a strip-mined area of western Illinois, has risen about 10 feet since the basins were constructed in 1971. Two dimensional modeling of ground-water flow in the mine spoil indicates that the rise is caused by leakage from one storage basin. The hydrologic-parameter values producing the best fit between computed and observed head values are 0.000007 feet per second for the hydraulic conductivity of the mine spoil, 0.0000000004 feet per second for recharge from the leaking basin. The model indicates the volume of water leaking from the basin is 91,600 cubic yards per year. The principal components of the sewage sludge after the solids have been removed are alkalinity, nitrogen, phosphorous, and chloride. Components in higher concentrations near the basins were sodium, alkalinity, and chloride. Because the sodium and chloride concentrations in the sludge were too low to cause the higher concentrations in the ground water, the strip-mine spoil used in constructing the basins was considered to be the major source of these constituents. This spoil has been moved from its original location and unweathered surfaces exposed, which allowed dissolution of carbonate and chloride and release of sodium through cation exchange.
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Hydrologic effects of storing liquified sewage sludge on strip-mined land, Fulton County, Illinois |
| Series title | Water-Resources Investigations Report |
| Series number | 82-4047 |
| DOI | 10.3133/wri824047 |
| Year Published | 1982 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Description | iv, 30 p. |
| Country | United States |
| State | Illinois |
| County | Fulton County |
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