DSSP
Delaware Geological Survey
Located in Sussex County, Delaware, this groundwater monitoring location is associated with a water well in the Northern Atlantic Coastal Plain aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| -1.3-208.0 ft | 4.0 in diameter pvc casing | |
| 208.0-218.0 ft | 4.0 in diameter pvc screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-31.0 ft | sand | sand |
| 31.0-50.0 ft | sand | sand |
| 50.0-55.0 ft | sand, clay | sand, clay |
| 55.0-60.0 ft | sand | sand |
| 60.0-110.0 ft | sand, gravel | sand, gravel |
| 110.0-130.0 ft | gravel, clay | gravel, clay |
| 130.0-135.0 ft | sand | sand |
| 135.0-150.0 ft | sand, clay | sand, clay |
| 150.0-177.0 ft | clay, gravel | clay, gravel |
| 177.0-220.0 ft | sand | sand |
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Agency Delaware Geological Survey Site Name DSSP Site Number Pj41-11 Site Type WELL Lat/Long (NAD83) 38.6128, -75.0714 Well Depth 218 Feet Elevation (NAVD88) 9.17 ft Latitude 38.612804272 Longitude -75.071364321 Local Aquifer Name Pocomoke (None) National Aquifer Name Northern Atlantic Coastal Plain aquifer system (S100NATLCP) 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 -
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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 7.49 5.22 1.97 2007-12-17 2025-07-21 6168 17.6 5.69 35.3 Statistics Calculated 2025-11-01 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 5.87 5.65 5.45 5.25 4.94 4.66 4.61 18 18 Feb 5.53 5.47 5.31 5.10 4.93 4.69 4.35 17 17 Mar 5.54 5.48 5.19 4.96 4.73 4.51 4.47 17 17 Apr 5.44 5.25 5.15 4.97 4.88 4.58 4.43 18 18 May 5.25 5.23 5.21 5.05 4.89 4.61 4.50 17 17 Jun 5.44 5.43 5.33 5.16 5.06 4.96 4.78 17 17 Jul 5.88 5.87 5.76 5.54 5.43 5.25 5.22 16 16 Aug 5.94 5.93 5.84 5.69 5.56 5.40 5.35 16 16 Sep 5.75 5.66 5.47 5.35 5.29 5.04 5.02 17 17 Oct 5.50 5.44 5.27 5.21 5.00 4.88 4.83 17 17 Nov 5.52 5.44 5.30 5.20 4.95 4.79 4.71 17 17 Dec 5.70 5.55 5.44 5.18 4.95 4.87 4.73 18 18 Statistics Calculated 2025-11-01 -
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