50W 4C
U.S. Geological Survey
Located in Loudoun County, Virginia, this groundwater monitoring location is associated with a water well in the Early Mesozoic basin 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 50W 4C Site Number 390623077314201 Site Type WELL Lat/Long (NAD83) 39.1065, -77.528 Well Depth 535 Feet Elevation (NAVD88) 383.49 ft Latitude 39.106495161407 Longitude -77.5280453522489 Local Aquifer Name Balls Bluff Formation (None) National Aquifer Name Early Mesozoic basin aquifers (N300ERLMZC) 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 49.06 34.21 12.30 1977-10-13 2024-12-03 5845 47.2 38.89 34.21 Statistics Calculated 2024-12-04 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 48.27 46.95 42.19 34.67 26.30 22.45 20.65 37 37 Feb 48.97 43.93 40.19 32.46 25.33 22.88 20.84 37 37 Mar 47.94 41.77 38.56 32.30 26.01 21.88 19.32 39 39 Apr 48.02 37.99 35.76 31.26 25.75 22.86 20.65 40 40 May 44.97 38.60 36.03 30.86 25.25 21.32 20.23 38 38 Jun 41.85 37.77 36.11 31.16 27.29 22.90 20.19 37 37 Jul 44.35 39.13 37.84 34.59 29.66 26.33 24.29 39 39 Aug 42.80 41.16 39.07 35.66 30.42 27.60 24.76 38 38 Sep 47.43 44.57 42.30 38.20 31.74 26.77 22.88 41 41 Oct 48.44 45.88 41.55 39.92 31.67 26.05 21.40 41 41 Nov 49.06 48.14 45.05 39.94 31.16 24.00 22.02 43 43 Dec 48.40 44.04 40.71 37.12 26.04 22.73 20.04 36 36 Statistics Calculated 2024-12-04 -
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