USGS Water-Year Summary 2019
015765195 BIG SPRING RUN NEAR MYLIN CORNERS, PA
LOCATION - Lat 39°59'45.37", long 76°15'50.54" referenced to North American Datum of 1983, Lancaster County, PA, Hydrologic Unit 02050306, on right bank, .25 mi upstream of bridge on Long Rifle Road and .36 mi downstream from intersection of Beaver Valley Pike (Rt. 741) and Gypsy Hill Road.
DRAINAGE AREA - 1.68 mi².
PERIOD OF RECORD - October 2008 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 305 ft above North American Vertical Datum of 1988, from Lidar. Datum of gage originally listed as "315 ft above National Geodetic Vertical Datum of 1929, from topographic map". Satellite telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with Pennsylvania Department of Environmental Protection and Franklin and Marshall College.
PERIOD OF RECORD - April 2016 to current year.
INSTRUMENTATION - A YSI 600 OMS multi parameter probe with 6136 sensor installed at the site to continuously record water temperature, turbidity and specific conductance on a 15-minute interval.