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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
01573000 SWATARA CREEK AT HARPERS TAVERN, PA
LOCATION - Lat 40°24'09", long 76°34'39" referenced to North American Datum of 1927, Lebanon County, PA, Hydrologic Unit 02050305, on left bank 100 ft downstream from bridge on State Highway 934 at Harpers Tavern, 6.0 mi northwest of Annville, and 8.5 mi downstream from Little Swatara Creek.
DRAINAGE AREA - 337 mi².
REVISIONS HISTORY - WSP 1202: 1948. WSP 1302: 1920(M), 1921, 1924-25(M), 1927-28(M), 1930(M). WSP 1903: Drainage area. WDR PA-72-1: 1889 (M). WDR PA-85-2: 1984(P)(m).
SURFACE-WATER RECORDS
PERIOD OF RECORD - January 1919 to current year. Prior to October 1927, published as "at Harpers".
GAGE - Water-stage recorder. Datum of gage is 356.03 ft above North American Vertical Datum of 1988 (NGS benchmark). Prior to Jul 16, 1931, non-recording gage at same site and datum. Prior to September 24, 2024, datum of gage was reported as 356.68 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. Funding for the operation of this station is provided by the Pennsylvania Department of Environmental Protection and the U.S. Geological Survey.
REMARKS - The Pennsylvania American Water Company diverts water upstream from station for municipal supply of city of Lebanon. Record of diversions were provided to the USGS by the City of Lebanon and filed with the Water Science Center through Water Year 2016. Records for water years 2014-2016 are fair except those for estimated daily discharges, which are poor. Records for water years 2017-2018 are fair except estimated discharge, which is poor. Records for water years 2019-2021 are good except for estimated discharge, which is poor. Records for water year 2022 are good except for June 13 through Sept 30, which are fair and estimated discharge, which is poor. Records for water year 2023 are fair and estimated discharge, which is poor.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Jun 1, 1889, reached a stage of 25.6 ft, from floodmark, discharge, about 88,000 ft³/s.
