HA Bd 31
U.S. Geological Survey
Located in Harford County, Maryland, this groundwater monitoring location is associated with a water well in the Piedmont and Blue Ridge crystalline-rock aquifers.
Well Construction
No well construction data is available
No lithology data is available
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Agency U.S. Geological Survey Site Name HA Bd 31 Site Number 393902076160001 Site Type WELL Lat/Long (NAD83) 39.6506, -76.2662 Well Depth 25.9 Feet Elevation (NAVD88) 455.4 ft Latitude 39.6506444444444 Longitude -76.2662 Local Aquifer Name Baltimore Gabbro Complex (None) National Aquifer Name Piedmont and Blue Ridge crystalline-rock aquifers (N400PDMBRX) Aquifer Type UNCONFINED Water-Level Well Type Trend 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 20.25 9.93 1.19 1954-05-11 2025-03-13 1595 70.8 14.20 6.061 Statistics Calculated 2025-04-19 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 19.35 15.45 12.77 9.74 7.03 5.40 3.05 66 66 Feb 19.59 13.53 11.10 8.45 6.35 4.36 2.48 60 60 Mar 16.82 12.94 10.05 7.78 5.82 3.95 3.24 65 65 Apr 16.14 10.65 8.77 6.94 5.83 4.17 2.05 64 64 May 16.00 11.04 9.61 8.24 6.67 4.80 2.00 64 64 Jun 16.69 12.20 10.83 9.36 7.29 5.86 2.45 62 62 Jul 18.49 13.79 12.60 10.77 9.22 6.74 3.55 64 64 Aug 19.50 14.69 13.90 12.02 9.74 6.81 5.61 65 65 Sep 20.06 16.37 15.09 12.92 10.61 7.25 1.19 63 63 Oct 18.63 17.19 15.59 12.34 9.83 7.42 2.72 66 66 Nov 18.37 17.73 15.81 12.26 9.46 7.45 3.50 60 60 Dec 18.93 16.42 13.46 10.30 8.50 5.94 2.52 68 68 Statistics Calculated 2025-04-19 -
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