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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.
- 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
01472199 WEST BRANCH PERKIOMEN CREEK AT HILLEGASS, PA
LOCATION - Lat 40°22'26", long 75°31'22" referenced to North American Datum of 1927, Montgomery County, PA, Hydrologic Unit 02040203, on left bank 0.3 mi downstream from bridge on private road off Heffner Road, and 0.5 mi north of Hillegass.
DRAINAGE AREA - 23 mi².
REVISIONS HISTORY - WDR PA-01-1: 1982-85, 1987, 1989, 1990, 1993-96 (P).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1981 to current year. Prior to October 1992, published as "Northwest Branch".
GAGE - Water-stage recorder and crest-stage gage. Prior to February 24, 2022, gage included broad-crested concrete control. Datum of gage is 290.00 ft above National Geodetic Vertical Datum of 1929. Satellite and landline telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey in cooperation with the Delaware River Basin Commission.
REMARKS - Records for water years 2014-2016 are fair except those for estimated daily discharges, which are poor. Records for water years 2017-2022 are fair except estimated discharge, which is poor. Records for water year 2023 are good except estimated discharge, which is poor.
