PG De 21
U.S. Geological Survey
Located in Prince George's County, Maryland, this groundwater monitoring location is associated with a water well in the Northern Atlantic Coastal Plain aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| 0.0-150.0 ft | 6.0 in diameter none casing | |
| 150.0-155.0 ft | 6.0 in diameter brass/bronze screen |
| Depth | Lithology | Description |
|---|---|---|
| 150.0-155.0 ft | Clay, some Sand | Clay, some Sand |
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Agency U.S. Geological Survey Site Name PG De 21 Site Number 385130076465501 Site Type WELL Lat/Long (NAD83) 38.8588, -76.7816 Well Depth 155 Feet Elevation (NGVD29) 95.76 ft Latitude 38.8588333333333 Longitude -76.7816111111111 Local Aquifer Name Magothy Formation (None) National Aquifer Name Northern Atlantic Coastal Plain aquifer system (S100NATLCP) Aquifer Type UNCONFINED Water-Level Well Type Surveillance 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 65.15 52.28 38.39 1956-04-26 2025-04-15 546 69.0 63.37 0.0 Statistics Calculated 2025-04-18 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 61.89 60.13 57.38 49.80 43.03 39.79 38.73 41 41 Feb 61.29 59.67 57.08 51.44 42.79 39.71 38.51 38 38 Mar 61.00 59.35 56.43 50.27 44.07 40.24 38.69 43 43 Apr 63.14 61.92 60.81 56.22 46.45 40.45 38.58 61 61 May 61.41 59.17 56.39 50.21 43.83 39.06 38.39 40 40 Jun 62.58 60.32 57.35 52.20 42.79 39.63 38.49 39 39 Jul 63.84 60.51 57.79 50.83 44.27 40.92 38.70 41 41 Aug 65.10 64.06 59.59 54.53 46.62 39.53 38.62 40 40 Sep 64.97 63.70 62.56 58.01 45.67 41.33 38.68 59 59 Oct 64.80 61.89 59.39 52.53 45.47 40.82 38.66 42 42 Nov 63.25 60.98 58.18 52.18 45.30 40.52 38.70 38 38 Dec 65.15 60.69 57.64 51.82 43.41 40.04 38.78 32 32 Statistics Calculated 2025-04-18 -
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