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Site Number: 390623077314201 - 50W 4C


 
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DESCRIPTION:
Latitude 39°06'23", Longitude 77°31'42"   NAD27
Loudoun County, Virginia, Hydrologic Unit 02070008
Well depth: 535 feet
Hole depth: 535 feet
Land surface altitude: 383.49feet above NAVD88.
Well completed in "Early Mesozoic basin aquifers" (N300ERLMZC) national aquifer.
Well completed in "Balls Bluff Formation" (231BLBF) local aquifer
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     2018-06-07  2021-06-06  
 Daily Data
    Depth to water level, feet below land surface  2018-06-07  2021-06-06  2176 
 Field groundwater-level measurements 1977-10-13  2021-03-08  374 
 Water-Year Summary 2006  2020  9 
OPERATION:
Record for this site is maintained by the USGS Virginia Water Science Center
Email questions about this site to Virginia Water Science Center Water-Data Inquiries
Site Statistics

Most recent data value: 29.59 on 6/17/2021
Period of Record Monthly Statistics for 390623077314201
Depth to water level, feet below land surface
All Approved Continuous & Periodic Data Used In Analysis
Note: Highlighted values in the table indicate closest statistic to the most recent data value.
MonthLowest
Median
10th
%ile
25th
%ile
50th
%ile
75th
%ile
90th
%ile
Highest
Median
Number
of
Years
Jan48.2747.5744.9035.6628.2522.6920.2629
Feb48.9744.6042.3035.1030.5925.0521.1327
Mar47.9443.6840.2836.5230.5524.9621.0927
Apr48.0238.6336.0131.9926.1221.5320.4734
May44.9739.4337.3733.8830.3526.0925.6128
Jun41.8537.9536.2733.4429.7524.7822.1429
Jul44.3539.5237.8534.9629.9025.8623.4335
Aug42.8042.0340.4037.8834.9928.1422.2628
Sep47.4344.8042.6039.4636.8131.9627.7931
Oct48.4446.1842.0440.2032.5025.2221.4036
Nov49.0648.3046.5541.2837.5527.5721.9534
Dec48.4046.4741.9438.4234.5027.7124.1625
.As of 6/5/2021 17:45-2
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Daily Groundwater Data

Most recent Provisional daily data value: 29.59 on 06/17/21
Summary for Period of Continuous Record
Depth to water level, feet below land surface
Approved Daily Maximum Values Data Used in Analysis
Begin
Date
End Date Days%
Complete
07/11/1911/01/20 47298

Daily Data Options

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Periodic Groundwater Data


Summary for Period of Record Periodic Water Levels
Depth to water level, feet below land surface
Approved Periodic Water Level Values
Begin DateEnd DateNumber of Values
10/13/7703/08/21372
Highest WLDate of Highest WLLowest WLDate of Lowest WL
20.2601/26/1049.0611/27/85

Groundwater Levels Options

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Note: The most recent measurement on 03/08/2021 has the following status:
''
Period of Record - All Data Types

Summary for Period of Record - All Data Types
Depth to water level, feet below land surface
Begin DateEnd DateNumber of Values
10/13/7706/17/212,182
Highest WLDate of Highest WLLowest WLDate of Lowest WL
20.2601/26/1049.0611/27/85

Period of Record Options

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Last update: Monday, March 8, 2021 at 15:43
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