Garrisons Lake
Delaware Geological Survey
Located in Kent County, Delaware, this groundwater monitoring location is associated with a water well in the Northern Atlantic Coastal Plain aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| -1.0-201.0 ft | 6.0 in diameter pvc casing | |
| 201.0-251.0 ft | 6.0 in diameter pvc screen |
No lithology data is available
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Agency Delaware Geological Survey Site Name Garrisons Lake Site Number Hc55-40 Site Type WELL Lat/Long (NAD83) 39.2639, -75.5932 Well Depth 251 Feet Elevation (NAVD88) 46.1 ft Latitude 39.263900053 Longitude -75.593223687 Local Aquifer Name Piney Point (None) National Aquifer Name Northern Atlantic Coastal Plain aquifer system (S100NATLCP) 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 80.23 70.61 66.19 2009-06-15 2025-04-02 3189 15.8 76.55 0.0 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 Jan 75.39 75.15 72.70 70.26 68.84 67.64 66.78 16 16 Feb 76.14 75.87 73.03 71.12 69.03 67.24 66.74 13 13 Mar 76.25 76.15 72.56 70.66 69.71 67.26 66.42 14 14 Apr 76.51 76.31 71.56 70.46 68.91 67.12 66.74 16 16 May 76.40 73.78 71.15 70.14 69.04 67.54 67.40 15 15 Jun 75.67 73.32 71.39 70.52 68.93 67.91 67.89 16 16 Jul 76.00 73.16 71.73 70.86 69.07 68.49 68.28 16 16 Aug 75.28 73.72 72.27 70.86 69.42 68.35 68.20 16 16 Sep 75.25 74.22 72.70 70.83 69.60 68.05 67.97 16 16 Oct 74.31 74.21 73.03 71.14 69.40 67.91 67.76 16 16 Nov 74.66 74.21 73.24 70.63 68.91 67.62 67.27 15 15 Dec 74.73 74.56 72.79 70.15 68.59 67.59 66.98 14 14 Statistics Calculated 2025-04-22 -
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