AA Bb 87
U.S. Geological Survey
Located in Anne Arundel County, Maryland, this groundwater monitoring location is associated with a water well in the Northern Atlantic Coastal Plain aquifer system.
Well Construction
| Depth | Description | |
|---|---|---|
| 215.0-220.0 ft | 4.5 in diameter pvc or plastic casing | |
| -2.57-190.0 ft | 4.5 in diameter pvc or plastic casing | |
| 190.0-215.0 ft | 4.5 in diameter pvc, fbrgls/plst screen |
No lithology data is available
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Agency U.S. Geological Survey Site Name AA Bb 87 Site Number 390826076454802 Site Type WELL Lat/Long (NAD83) 39.1406, -76.7633 Well Depth 220 Feet Elevation (NAVD88) 268.55 ft Latitude 39.1405555555556 Longitude -76.7633333333333 Local Aquifer Name Patuxent Formation (None) National Aquifer Name Northern Atlantic Coastal Plain aquifer system (S100NATLCP) Aquifer Type CONFINED Water-Level Well Type Surveillance Water-Level Well Characteristics Background 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 129.22 127.76 126.68 2009-05-14 2025-09-09 58 16.3 129.20 0.0 Statistics Calculated 2026-01-16 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 Apr 129.22 129.03 128.42 127.88 127.50 127.13 126.93 15 15 Sep 128.42 128.38 128.24 127.67 126.97 126.80 126.68 15 15 Statistics Calculated 2026-01-16 -
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