Station list
Available data
422803087475302 DATA: GW_LEVELS_99
LAKE COUNTY
SITE ID.--422803087475302. 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.
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, 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 1998 TO SEPTEMBER 1999
|
|---|
| WATER | | WATER | | WATER | | WATER | | WATER | | WATER |
|---|
| LEVEL | | LEVEL | | LEVEL | | LEVEL | | LEVEL | | LEVEL |
|---|
| DEC 13 | 199.19 | JAN 28 | 199.27 | MAR 24 | 199.25 | MAY 25 | 198.83 | JUN 25 | 199.04 | AUG 18 | 199.43 |