Station list     Available data
422803087475302 DATA: GW_LEVELS_2000                    

422803087475302       LAKE COUNTY, IL, LOCAL NUMBER 46N12E-14.6G2



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.-- Lower Mount Simon Sandstone of Cambrian age.

WELL CHARACTERISTICS.-- Drilled unused artesian well, one of three piezometers in 10-in. borehole, diameter 1.25 in., depth 2,264 ft, cased to 2,244 ft, 2-in. screen.

PERIOD OF RECORD.--
GROUND-WATER LEVELS: 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.

INSTRUMENTATION.-- Manual steel-tape measurement made every 2 months.

DATUM.-- Land-surface datum is 586 ft above sea level. Measuring point: Top coupling on 1.25-in. plastic pipe, 2.67 ft above land-surface datum.

REMARKS.-- Ground-water levels affected by regional pumping.

EXTREMES FOR PERIOD OF RECORD.--
GROUND-WATER LEVELS: Highest water level, 197.88 ft below land-surface datum, Dec. 14, 1988; lowest, 208.37 ft below land-surface datum, Nov. 6, 1992.
WATER LEVELS IN FEET BELOW LAND SURFACE DATUM
WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
WATERWATERWATERWATERWATERWATER
LEVELLEVELLEVELLEVELLEVELLEVEL
OCT 14199.72NOV 04199.84JAN 10199.06MAR 15199.36MAY 26199.18SEP 18199.22
 
WATER YEAR 2000 HIGHEST 199.06 JAN 10, 2000 LOWEST 199.84 NOV 04, 1999


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data