Station list     Available data
422803087475301 DATA: GW_LEVELS_2001               

422803087475301       LAKE COUNTY, IL, LOCAL NUMBER 46N12E-14.6G1



LOCATION.-- Lat 42°28'03", long 87°47'53", in SW1/4NE1/4NW1/4 sec. 14, T. 46 N., R. 12 E., Hydrologic Unit 04040002, at Illinois Beach State Park, northern unit. Owner: U.S. Geological Survey.

AQUIFER.-- Galena, Platteville, and Ancell Groups of Ordovician age.

WELL CHARACTERISTICS.-- Diameter 10 in., depth 940 ft, cased to 589 ft, unscreened, drilled observation artesian well.

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, 2.73 ft above land-surface datum.

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

EXTREMES FOR PERIOD OF RECORD.--
GROUND-WATER LEVELS: Highest water level, 208.96 ft below land-surface datum, April 9, 2001; lowest, 235.35 ft below land-surface datum, Oct. 30, 1990.
WATER LEVELS IN FEET BELOW LAND SURFACE DATUM
WATER YEAR OCTOBER 2000 TO SEPTEMBER 2001
WATERWATERWATERWATERWATER
LEVELLEVELLEVELLEVELLEVEL
OCT 23211.43MAR 15211.01APR 09208.96JUN 05209.11JUL 30210.97
 
WATER YEAR 2001 HIGHEST 208.96 APR 09, 2001 LOWEST 211.43 OCT 23, 2000


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data