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[!] Over the next year, the USGS Pennsylvania Water Science Center will be updating the geodetic vertical elevation (gage datum) for many locations. Click HERE for additional information including a current list of streamgages with upcoming datum changes. This update in gage datum does not affect the location of the streamgage, nor the observed local gage height or discharge recorded at the streamgage.

USGS 015765195 Big Spring Run near Mylin Corners, PA


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LOCATION.--Lat 39`59'45.37", long 76`15'50.54", Lancaster County, Hydrologic Unit 02050306, on right bank, 0.35 mile upstream of bridge on Long Riffle Road and 0.26 mile downstream from intersection of Beaver Valley Pike (Rt 741) and Gypsy Hill Road. September 24, 2008 to March 24, 2021, site was located 0.1 mi downstream.
DRAINAGE AREA.--1.68 square miles.
PERIOD OF RECORD.--October 2008 to current year.
GAGE.--Water-stage recorder, crest-stage gage, and water-quality recorder. Elevation of gage is 309 ft above North American Vertical Datum of 1988, from Lidar. September 24, 2008 to March 24, 2021, water-stage recorder, crest-stage gage, and water-quality recorder at site 550 ft downstream on right bank at datum 4 ft lower.
COOPERATION.--Station established and maintained by the U.S. Geological Survey in cooperation with Pennsylvania Department of Environmental Protection and Franklin and Marshall College.
REMARKS.--Satellite telemetry at station.
This station managed by the PAWSC New Cumberland Office.

Available Parameters Period of Record
2012-11-15  2022-08-06
2008-10-01  2022-08-06
2016-04-11  2022-08-06
2016-04-11  2022-08-07


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