Click
to
hide
Water-Year
Summary
instructions
and
information
- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
395450075485401 CH 10
Piedmont and Blue Ridge carbonate-rock aquifers
Cockeysville Marble
Cockeysville Marble
LOCATION - Lat 39°54'49.4", long 75°48'51.1" referenced to North American Datum of 1983, Chester County, PA, Hydrologic Unit 02040205, near intersection of SR 82 and 841, at Doe Run.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 33.5 ft. Upper casing diameter 6 in; top of first opening undefined, bottom of last opening undefined.
DATUM - Land-surface datum is 293 ft above North American Vertical Datum of 1988. Measuring point: top of plywood shelf, 5.23 ft above land-surface datum, Jun. 24, 1981 to present; top of plywood shelf, 5.18 ft above land-surface datum, Oct. 17, 2016 to present. Elevation of land surface is from Lidar.
PERIOD OF RECORD - August 1951 to April 1965, instantaneous water levels obtained several times per month. February 1966 to current year.
GAGE - Data collection platform with 60-minute recording interval. Satellite telemetry at station.
COOPERATION - Funding for the operation of this station is provided by the U.S. Geological Survey.
REMARKS - Daily maximum water levels are available for this well for the period of record. For some years, daily minimum and daily mean water levels may also be available from the USGS Pennsylvania Water Science Center Office.
EXTREMES FOR PERIOD OF RECORD - Prior to October 2000, the extremes were based on extremes of the daily maximum depth below land-surface datum. Since that date, the extremes are based on the instantaneous depth below land-surface datum. Highest water level, 6.94 ft below land-surface datum, May 1, 2014; lowest, 16.55 ft below land-surface datum, Oct 9, 10, 2002.
