Orland Park 11
Illinois State Water Survey
Located in Cook County, Illinois, this groundwater monitoring location is associated with a water well in the Cambrian-Ordovician aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-1488.0 ft | 16.0 in diameter steel black casing | |
| - ft | none screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-133.0 ft | unknown | drift |
| 133.0-427.0 ft | unknown | Silurian Dolomite |
| 427.0-553.0 ft | unknown | Maquoketa Shale |
| 553.0-898.0 ft | unknown | Galena-Platteville |
| 898.0-1138.0 ft | unknown | St. Peter Sandstone |
| 1138.0-1493.0 ft | unknown | Knox |
| 1493.0-1663.0 ft | unknown | Ironton-Galesville Sandstone |
| 1663.0-1683.0 ft | unknown | Eau Claire |
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Agency Illinois State Water Survey Site Name Orland Park 11 Site Number P410539 Site Type WELL Lat/Long (WGS84) 41.6446, -87.8268 Well Depth 1683 Feet Elevation (NAVD88) 713.94 ft Latitude 41.644632 Longitude -87.826842 Local Aquifer Name Ironton-Galesville Sandstone (None) National Aquifer Name Cambrian-Ordovician aquifer system (S300CAMORD) Aquifer Type CONFINED Water-Level Well Type Trend Water-Level Well Characteristics Known Changes Water Quality Network Additional info Link 1 -
Activity Start Date Activity Start Time Characteristic Name Measure Value Units Detection Limit Value Type Sample Fraction Method Name Analytical Method System Sample Method ID Sample Method ID Context Sample Method Name Activity Type Code Data Provided By -
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How do we calculate statistics?
Overall Water Level Statistics (Depth to water, feet below land surface) Lowest Water Level Median Water Level Highest Water Level First Measurement Date Last Measurement Date Number of Measurements Years of Record Latest Value Latest Percentile 710.00 591.06 585.24 1979-07-01 2025-04-21 3386 45.8 590.80 Statistics Calculated 2025-04-22 Monthly Water Level Statistics (Depth to water, feet below land surface) Month Lowest Median 10th Percentile 25th Percentile 50th Percentile 75th Percentile 90th Percentile Highest Median Number of Measurements Years of Record -
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