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- 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.
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USGS Water-Year Summary 2024
414634077235801 TI 470
Sand and gravel aquifers (glaciated regions)
Outwash
Outwash
LOCATION - Lat 41°46'33.9", long 77°23'57.3" referenced to North American Datum of 1983, Tioga County, PA, Hydrologic Unit 02050205, at U.S. Geological Survey Northern Appalachian Research Laboratory near Asaph, PA.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 73 ft. Upper casing diameter 6 in; top of first opening 69 ft, bottom of last opening 73 ft.
DATUM - Land-surface datum is 1,160.39 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF CASING, 1.70 ft above land-surface datum, Jul. 16, 2012 to present.
PERIOD OF RECORD - October 1984 to September 1986, July 2012 to August 24, 2017.
GAGE - 30-PSI In-Situ Level Troll pressure transducer with built in recorder at 15-minute recording interval.
COOPERATION - Funding for the operation of this station is provided by the U.S. Geological Survey. This station managed by the Williamsport office.
REMARKS - In addition to the daily mean water level table shown below, daily maximum and minimum water levels are also available from the USGS Pennsylvania Water Science Center. Water level affected by pumping from 4 supply wells at the Northern Appalachian Research Laboratory.
PERIOD OF DAILY RECORD - October 1984 to September 1986; July 2012 to August 24, 2017.
EXTREMES FOR PERIOD OF RECORD - Prior to July 2012, the extremes shown are based on extremes of daily maximum depth below land-surface datum. Since that date, extremes are based on the instantaneous depth below land-surface datum. Highest water level, 6.51 ft below land-surface datum, May 7, 2017, lowest 31.00 ft below land-surface datum, Sept 16, 1985.
