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LOCATION.-- Lat 41°35'18", long 87°44'52" (NAD of 1927), in NE1/4NW1/4 sec. 28, T. 36 N., R. 13 E., Cook County, Hydrologic Unit 07120003, on county highway bridge on 167th St., 0.6 mi west of Illinois Highway 50. |
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DRAINAGE AREA.-- 9.13 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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PARTIAL RECORD: Annual maximum, water years 1954 to 1972; 1974 to 1979. |
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GAGE.-- Crest-stage gage. Datum is 658.10 ft above NGVD of 1929 (657.80 ft NAVD 1988). Datums published in reports prior to WDR IL-77-1 are in error. Datum incorrectly published as 659.16 ft above NGVD of 1929 in WDR IL-77-1. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 481 ft3/sec, October 11, 1954, gage height, 5.51 ft, present datum. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |