Station list
Available data
422803087475301 DATA: GW_LEVELS_99
LAKE COUNTY
SITE ID.--422803087475301. Local number, 46N12E-14.6g1.
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.--Galena, Platteville, and Ancell Groups of Ordovician age.
WELL CHARACTERISTICS.--Drilled unused artesian well, diameter 10 in., depth 940 ft, cased to 589 ft, unscreened.
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.--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, 209.20 ft below land-surface datum, July 2, 1997;
lowest, 235.35 ft below land-surface datum, Oct. 30, 1990.
WATER LEVELS IN FEET BELOW LAND SURFACE DATUM,
WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
|
|---|
| WATER | | WATER | | WATER | | WATER | | WATER | | WATER |
|---|
| LEVEL | | LEVEL | | LEVEL | | LEVEL | | LEVEL | | LEVEL |
|---|
| DEC 13 | 211.56 | JAN 28 | 210.81 | MAR 24 | 210.00 | MAY 25 | 209.40 | JUN 25 | 209.99 | AUG 18 | 213.31 |