Station list
Available data
422803087475303 DATA: GW_LEVELS_99
LAKE COUNTY
SITE ID.--422803087475303. Local number, 46N12E-14.6g3.
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.--Elmhurst Sandstone member of the Eau Claire Formation and the upper 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 1,684 ft, cased to 1,666 ft, 2-in. screen.
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.--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, 209.18 ft below land-surface datum, May 25, 1999;
lowest, 232.7 ft below land-surface datum, Oct. 18, Nov. 12, 18, 19, 28, 29, 1989.
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 | 208.58 | JAN 28 | 208.42 | MAR 24 | 207.48 | MAY 25 | 207.18 | JUN 25 | 207.61 | AUG 18 | 209.01 |