Station list     Available data
                   
LAKE COUNTY


SITE ID.--422803087475304. Local number, 46N12E-14.6g4.

LOCATION.--Lat 42°28'03", long 87°47'53", Hydrologic Unit 04040002, at Illinois Beach State Park, northern unit. Owner: U.S. Geological Survey.

AQUIFER.--Ironton and Galesville Sandstones of Cambrian age.

WELL CHARACTERISTICS.--Drilled unused artesian well, one of three piezometers in 10-in. borehole, diameter 1.25 in., depth 1,203 ft, cased to 1,186 ft, 2-in. screen.

INSTRUMENTATION.--Electronic data logger--60-minute recording.

DATUM.--Land-surface datum is 586 ft above sea level. Measuring point: Top coupling on 1.25-in. plastic pipe, 2.73 ft above land-surface datum.

REMARKS.--Water level affected by regional pumping.

PERIOD OF RECORD.--November 1988 to September 1997, December 1998 to current year. Miscellaneous water-level measurements from December 1981 to November 1988 are available in files of the U.S. Geological Survey.

EXTREMES FOR PERIOD OF RECORD.--Highest water level, 207.61 ft below land-surface datum, June 16, 1997; lowest, 235.66 ft below land-surface datum, Dec. 22, 1989.
WATER LEVELS IN FEET BELOW LAND SURFACE DATUM, WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY MAXIMUM VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
5 -- -- -- 210.51 210.02 209.27 208.78 208.29 209.60 210.29 214.40 213.53
10 -- -- -- 210.39 209.71 209.28 209.03 208.91 209.79 211.29 214.90 214.40
15 -- -- -- 210.14 209.52 209.16 208.78 208.85 210.10 212.41 215.15 215.15
20 -- -- 211.02 210.14 209.52 209.27 208.78 209.04 209.79 213.41 214.65 215.15
25 -- -- 211.02 210.15 209.46 209.28 208.84 208.59 210.23 213.10 214.15 214.90
EOM -- -- 210.77 210.15 209.09 208.78 208.91 209.10 210.54 213.40 213.53 215.15


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data