Funding for this site is provided by:
--395450075485401 CHESTER COUNTY,
local well number CH10
--Lat 39`54'49.4", long
75`48'51.1", Hydrologic Unit 02040205, near intersection of SR
82 and 841, at Doe Run.
--Cockeysville Marble of Paleozoic age.
--Drilled unused water-table
well, diameter 6 in, depth 34 ft, cased to 18 ft, open hole.
--Data collection platform with
60-minute recording interval. Satellite telemetry at station.
--Elevation of land surface is 293 ft above
North American Vertical Datum of 1988, from Lidar. Measuring point: Top
of plywood shelf, 5.2 ft above land-surface datum. Prior to June 24,
1981, top of casing 1.00 ft above land-surface datum.
--Daily maximum, minimum, and mean water
levels since October 1994 are available from the District Office.
PERIOD OF RECORD.
--August 1951 to April 1965,
instantaneous water levels obtained several times per month. February
1966 to current year.
--Funding for the operation of this
station is provided by the U.S. Geological Survey.
This gage is monitored as part of the National Groundwater and Streamflow