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LOCATION.-- Lat 41°20'43", long 88°03'50" (NAD of 1983), in NE1/4SW1/4NE1/4 sec. 15, T.33N., R.10E, Hydrologic Unit 07120001, Piezometer PZ7, about 4.5 miles northeast of Wilmington. Owner: U.S. Forest Service, Midewin National Tallgrass Prairie. |
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AQUIFER.-- Glacial drift of Quaternary age. |
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WELL CHARACTERISTICS.-- diameter 1.0 inch, depth 15.9 feet, cased to 10.9 feet, slotted screen, observation. |
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PERIOD OF RECORD.-- |
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GROUND-WATER LEVELS: October 2003 through September 2004. |
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INSTRUMENTATION.-- Electronic data logger--60-minute recording. |
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DATUM.-- Land-surface datum is 626.11 ft above NAVD of 1988. Measuring point: Top of PVC casing, 4.0 ft above land-surface datum. |
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REMARKS.-- Piezometer open to fine-grained deposits. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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GROUND-WATER LEVELS: Highest recorded water level, 4.42 ft below land surface datum, June 12, 2004; lowest recorded, 7.46 ft below land surface datum, Aug. 24, 25, and 26, 2004. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |