45N6E-23.7d3 (7-HRT-D)
U.S. Geological Survey
Located in McHenry County, Illinois, this groundwater monitoring location is associated with a water well in the Sand and gravel aquifers (glaciated regions).
Well Construction
| Depth | Description | |
|---|---|---|
| -2.47-160.7 ft | 2.0 in diameter pvc or plastic casing | |
| 160.7-165.2 ft | 2.0 in diameter pvc, fbrgls/plst screen |
No lithology data is available
-
Agency U.S. Geological Survey Site Name 45N6E-23.7d3 (7-HRT-D) Site Number 422142088303103 Site Type WELL Lat/Long (NAD83) 42.3617, -88.5086 Well Depth 165.7 Feet Elevation (NAVD88) 924.14 ft Latitude 42.3616666666667 Longitude -88.5086111111111 Local Aquifer Name Quaternary System (None) National Aquifer Name Sand and gravel aquifers (glaciated regions) (N100GLCIAL) Aquifer Type CONFINED Water-Level Well Type Trend Water-Level Well Characteristics Suspected / Anticipated 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 -
-
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 45.80 37.91 31.57 2009-02-25 2026-02-19 6111 17.0 40.97 26.32 Statistics Calculated 2026-02-20 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 Jan 43.90 42.44 40.85 39.15 36.35 34.01 33.92 16 16 Feb 42.95 42.28 41.03 38.46 35.95 34.58 34.12 17 17 Mar 41.85 41.36 40.56 37.87 35.58 34.41 33.88 17 17 Apr 40.04 39.93 38.69 36.03 34.11 33.80 33.39 17 17 May 39.89 38.49 37.67 36.12 34.27 33.29 33.15 17 17 Jun 40.07 39.60 37.42 36.16 34.97 33.98 33.31 17 17 Jul 41.39 40.98 38.57 36.19 35.20 34.96 34.45 17 17 Aug 42.08 41.46 39.74 37.06 36.80 35.29 34.79 17 17 Sep 43.26 41.80 40.85 38.45 37.50 36.44 35.95 17 17 Oct 43.29 42.15 41.10 39.10 38.48 34.17 33.42 17 17 Nov 43.73 42.27 40.98 39.10 38.10 33.97 33.03 17 17 Dec 43.92 42.57 40.94 39.06 37.10 34.07 33.85 17 17 Statistics Calculated 2026-02-20 -
Operated in cooperation with:
