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LOCATION.-- Lat 41°53'18", long 87°36'27" (NAD of 1927), in NE1/4SE1/4 sec.10, T.39 N., R.14 E., Cook County, Hydrologic Unit 07120003, 0.2 mi east of Lake Shore Drive in Chicago, on left downstream side of lock guidewall, 100 ft downstream of the river-side lock gates at the Chicago River Lock and Dam. |
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DRAINAGE AREA.-- Indeterminate. |
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PERIOD OF RECORD.-- |
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STAGE: August 1997 to September 2003. |
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GAGE.-- Water-stage recorder and phone telemeter. Datum of gage is 579.48 ft above NGVD of 1929 (Chicago City datum). |
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REMARKS.-- Gage provides stage data to determine Illinois' diversion of Lake Michigan water. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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STAGE: Maximum gage height, 4.14 ft, Aug. 16, 1997; minimum, -3.27 ft., Jan. 18, 2002. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |