Rehoboth Beach
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 | |
|---|---|---|
| -0.7-230.0 ft | 4.0 in diameter pvc casing | |
| 230.0-250.0 ft | 4.0 in diameter pvc screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-1.0 ft | topsoil | topsoil |
| 1.0-21.0 ft | sand | sand |
| 21.0-30.0 ft | sand; slightly clayey | sand; slightly clayey |
| 30.0-47.0 ft | sand, clay | sand, clay |
| 47.0-58.0 ft | sand; slightly clayey | sand; slightly clayey |
| 58.0-72.0 ft | sand | sand |
| 72.0-80.0 ft | sand | sand |
| 80.0-105.0 ft | sand, gravel | sand, gravel |
| 105.0-118.0 ft | sand; interbed: clay | sand; interbed: clay |
| 118.0-132.0 ft | sand, clay, gravel | sand, clay, gravel |
| 132.0-178.0 ft | sand; interbed: clay | sand; interbed: clay |
| 178.0-220.0 ft | sand; interbed: clay | sand; interbed: clay |
| 220.0-260.0 ft | sand | sand |
| 260.0-361.0 ft | sand; interbed: clay | sand; interbed: clay |
| 361.0-390.0 ft | sand; interbed: clay | sand; interbed: clay |
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Agency Delaware Geological Survey Site Name Rehoboth Beach Site Number Oi24-06 Site Type WELL Lat/Long (NAD83) 38.7163, -75.1085 Well Depth 250 Feet Elevation (NAVD88) 23.04 ft Latitude 38.716308644 Longitude -75.108484951 Local Aquifer Name Manokin (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 22.49 19.23 16.48 1975-10-27 2025-02-25 697 49.3 19.69 25.00 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 20.30 19.79 19.35 19.00 18.60 17.80 17.66 41 41 Feb 20.42 19.96 19.69 18.89 18.00 17.93 17.89 19 19 Mar 20.05 19.71 19.42 18.70 17.75 17.24 17.08 23 23 Apr 19.79 19.41 18.92 18.51 17.91 17.38 16.48 36 36 May 20.13 19.53 19.43 19.02 17.76 17.44 17.24 22 22 Jun 21.56 19.81 19.56 19.27 18.32 17.81 17.52 25 25 Jul 20.87 20.44 20.18 19.74 19.11 18.35 17.80 37 37 Aug 22.49 21.26 20.26 19.90 19.28 18.64 18.19 22 22 Sep 20.41 20.27 20.01 19.64 19.12 18.44 18.18 26 26 Oct 20.48 20.21 19.85 19.37 19.06 18.69 18.31 38 38 Nov 20.38 20.12 19.74 19.33 18.99 18.11 17.97 27 27 Dec 20.40 19.93 19.65 19.13 18.75 18.15 17.83 22 22 Statistics Calculated 2025-04-22 -
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