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LOCATION.-- Lat 41°22'10", long 88°09'30" (NAD of 1983), in NW1/4NE1/4SE1/4 sec. 2, T.33N., R.9E, Hydrologic Unit 07120004, Piezometer PZ5, about 4 miles northwest 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 11.6 feet, cased to 6.6 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 541.78 ft above NAVD of 1988. Measuring point: Top of PVC casing, 3.4 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, 2.14 ft above land surface datum, June 12, 2004; lowest recorded, 0.45 ft below land surface datum, Aug. 3, 2004. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |