Denny Road
Delaware Geological Survey
Located in New Castle County, Delaware, this groundwater monitoring location is associated with a water well in the Northern Atlantic Coastal Plain aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| -2.0-332.0 ft | 2.0 in diameter pvc casing | |
| 332.0-352.0 ft | 2.0 in diameter pvc screen |
| Depth | Lithology | Description |
|---|---|---|
| 0.0-15.0 ft | sand; trace: medium to coarse gravel | sand; trace: medium to coarse gravel |
| 15.0-27.0 ft | sand; trace: medium gravel | sand; trace: medium gravel |
| 27.0-30.0 ft | clay; sandy | clay; sandy |
| 30.0-45.0 ft | clay, fine sand; trace: lignite; interbed: sand; trace: lignite | clay, fine sand; trace: lignite; interbed: sand; trace: lignite |
| 45.0-60.0 ft | clay; trace: lignite; lithologic information does not exist for this well in the database. code Lt of type sed_struct1 not found. interbed: sand; trace: lignite | clay; trace: lignite; lithologic information does not exist for this well in the database. code Lt of type sed_struct1 not found. interbed: sand; trace: lignite |
| 60.0-75.0 ft | sand; interbed: clay | sand; interbed: clay |
| 75.0-90.0 ft | clay; trace: sand | clay; trace: sand |
| 90.0-105.0 ft | clay; trace: fine sand | clay; trace: fine sand |
| 105.0-120.0 ft | clay; sandy | clay; sandy |
| 120.0-150.0 ft | clay; sandy; trace: lignite | clay; sandy; trace: lignite |
| 150.0-240.0 ft | clay; trace: fine sand | clay; trace: fine sand |
| 240.0-255.0 ft | clay; trace: sand | clay; trace: sand |
| 255.0-270.0 ft | clay | clay |
| 270.0-285.0 ft | sand, gravel; trace: clay | sand, gravel; trace: clay |
| 285.0-300.0 ft | clay; sandy; trace: sand | clay; sandy; trace: sand |
| 300.0-315.0 ft | clay; sandy | clay; sandy |
| 315.0-330.0 ft | sand; trace: clay | sand; trace: clay |
| 330.0-354.0 ft | sand; silty | sand; silty |
| 354.0-395.0 ft | clay | clay |
| 395.0-400.0 ft | clay; sandy | clay; sandy |
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Agency Delaware Geological Survey Site Name Denny Road Site Number Ea24-07 Site Type WELL Lat/Long (NAD83) 39.554, -75.7801 Well Depth 352 Feet Elevation (NAVD88) 44.55 ft Latitude 39.553983319 Longitude -75.780109201 Local Aquifer Name Potomac Lower Zone (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 156.64 128.94 28.10 1993-10-30 2025-07-23 4447 31.8 154.10 0.0 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 156.53 150.58 134.69 129.24 124.03 118.34 118.21 14 14 Feb 156.07 150.92 131.20 127.42 124.36 121.14 120.11 13 13 Mar 154.02 148.99 131.28 126.70 122.66 119.98 118.66 13 13 Apr 150.26 145.85 130.90 124.50 120.75 117.62 116.62 14 14 May 153.96 150.42 138.71 127.95 123.44 119.83 119.56 12 12 Jun 154.61 153.46 147.45 131.04 126.82 122.55 121.78 11 11 Jul 154.10 153.74 138.21 133.25 129.80 126.62 125.00 14 14 Aug 155.48 152.16 138.79 131.81 126.44 123.67 123.34 12 12 Sep 154.89 152.71 139.26 130.80 125.83 118.65 116.82 12 12 Oct 154.19 150.17 137.64 128.45 123.69 82.71 28.10 15 15 Nov 146.97 145.92 132.47 129.34 122.49 118.85 118.38 12 12 Dec 143.90 141.55 134.04 127.24 119.71 96.44 82.20 13 13 Statistics Calculated 2025-11-01 -
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