PROVISIONAL DATA SUBJECT TO REVISION

LOCATION.--Lat 39°20´45", long 76°51´25", Hydrologic Unit 02060003, at Granite.
AQUIFER.--Woodstock Granite of Paleozoic age.  Aquifer code: 300WDCK.
WELL CHARACTERISTICS.--Drilled, unused, water-table well, depth 250 ft; casing diameter 10 in., to 50.7 ft;
   casing diameter 6 in. with depth to 71.3 ft; open hole.
INSTRUMENTATION.--Monthly measurements with electric tape by U.S. Geological Survey personnel.
DATUM.--Altitude of land surface is 491 ft above National Geodetic Vertical Datum of 1929,from topographic map.
   Measuring point: Top of casing, 1.5 ft above land surface.
REMARKS.--Maryland Water-Level Network observation well. U.S. Geological Survey water-level telemeter at well.  
PERIOD OF RECORD.--November 1956 to current year.
EXTREMES FOR PERIOD OF RECORD.--Highest water level measured, 13.94 ft below land surface, June 24, 1972;
   lowest measured, 28.20 ft below land surface, Nov. 7, 2002.
COOPERATION.--Funding for the operation of this station is provided by the
   Maryland Geological Survey, and the U. S. Geological Survey.