USGS Water-Year Summary 2023
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.
- 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).
PERIOD OF RECORD - January 1919 to current year. Prior to October 1927, published as "at Harpers".
GAGE - Water-stage recorder. Datum of gage is 356.68 ft above National Geodetic Vertical Datum of 1929. Prior to Jul 16, 1931, non-recording gage at same site and datum. 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.
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.