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LOCATION.-- Lat 39°08'39", long 89°53'17" (NAD of 1927), in SE1/4SE1/4SE1/4 sec.8,T.8 N., R.7 W., Macoupin County, Hydrologic Unit 07130012, at dam and spillway of New Lake Gillespie, 3.6 mi northwest of Gillespie, and at mile 7.5. |
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DRAINAGE AREA.-- 12.3 mi2. |
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PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE |
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DISCHARGE: April 1996 to April 1997. |
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STAGE: April 1996 to April 1997. |
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GAGE.-- Non-recording gage and crest-stage gage. Datum of gage is 582.04 ft above NGVD of 1929 (581.63 ft NAVD 1988). |
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REMARKS.-- This station was established to collect data for the IEPA Clean Lakes Program study. |
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EXTREMES FOR PERIOD OF RECORD.-- |
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SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 195 ft3/s, Feb. 27, 1997, gage height 10.62 ft; no flow for many days. |
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Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |