Warning: Javascript must be enabled to use all the features on this page!

Page Loading - Please Wait...

Click to hideNews Bulletins
Click to hide state-specific text

! We're replacing this page with a Next Generation Monitoring Location Page.
We're modernizing Water Data for the Nation delivery. Find out what this means for you. This page will be discontinued July 2023.

USGS 383239076354201 CA Db 47


Click to hidestation-specific text

LOCATION.--Lat 38°32'36.8", long 76°35'40.8", Hydrologic Unit 02060006, 
   near Prince Frederick.
WELL CHARACTERISTICS.--Depth 570 ft. Upper casing diameter 4 in; top of first opening 560 ft, 
   bottom of last opening 570 ft. Drilled, observation, artesian well.
GAGE.--Water-level measurements by U.S. Geological Survey or Maryland Geological Survey personnel. 
   Equipped with digital water-level recorder, Feb. 12, 2004 to current year. U.S. Geological Survey 
   satellite data-collection platform at well.
DATUM.--Land-surface datum is 140.4 ft above National Geodetic Vertical Datum of 1929. Measuring point:
   Top of recorder shelter platform, 4.33 ft above land-surface datum,  Nov. 19, 2003, to present.
PERIOD OF RECORD.--July 1979 to current year.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 8.14 ft below sea level
   (148.54 ft below land surface), July 31, 1979; lowest measured, 77.97 ft below sea level
   (218.37 ft below land surface), August 25, 26, 2012 (recorder).
REMARKS.--Maryland Groundwater-Level Monitoring Network observation well. Water levels are affected by regional
   groundwater withdrawal.
COOPERATION.--Funding for the operation of this station is provided by the 
   Calvert County Department of Public Works, the Maryland Geological Survey and the U. S. Geological Survey. 
Water-level values for this site are now being published using the datum reference feet below land surface.
In order to convert the published values to a level in feet related to sea level, subtract the land surface values from the altitude of land surface, 140.40 (ft NGVD29).
The hydrograph below displays both feet below land surface and sea level scales on the dual Y-axes.
This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Available Period
2004-02-12  2022-10-03


  -- or --



Summary of all available data for this site
Instantaneous-data availability statement

Depth to water level, feet below land surface

Most recent instantaneous value: 214.42 10-03-2022   15:45 EDT
Graph of  Depth to water level, feet below land surface

Add up to 2 more sites and replot for "Depth to water level, feet below land surface"


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

Field Visit data is no longer available on this page, please go to the new Monitoring Location pages to see the field visit data graphed with the time series data. See this graph on the Monitoring Location Pages