The geodetic vertical elevation (gage datum) for this gage will be updated on 9/1/2026. See https://www.usgs.gov/centers/pennsylvania-water-science-center/updating-pennsylvania-streamgage-datums for more information.

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Available data

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Continuous data

2 data types available - data from 1985-10-01 to 2026-07-29

Daily data

1 data types available - data from 1975-10-01 to 2026-07-28

Field measurements

2 data types available - data from 1975-09-24 to 2026-06-12

Discrete sample data

597 Observed properties (data types) available - with data from 1984-10-22 to 2026-03-07

303 Sampling activities

Statistical tables for select daily data types

1 data types available - data from 1975-10-01 to 2026-07-28

Important information about this monitoring location

Flows are diverted by Hershey Chocolate Company.

Location details and information

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Operated in cooperation with:

Pennsylvania Department of Environmental Protection, Bureau of Safe Drinking Water

USGS - Federal Priority Streamgages

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	01573560	n/a
Location name	Swatara Creek near Hershey, PA	n/a
Site type	Stream	ST
Decimal latitude (WGS84)	40.2984235812968	n/a
Decimal longitude (WGS84)	-76.6677468580761	n/a
Latitude-longitude method	Interpolated from MAP.	M
Latitude-longitude accuracy	Accurate to + or - 1 sec.	S
District	Pennsylvania	42
State	Pennsylvania	42
County	Dauphin County	043
Country	United States of America	n/a
Altitude of gage/land surface	325.94 feet	n/a
Method altitude determined	Level or other surveyed method.	L
Altitude accuracy	0.01 feet	n/a
Altitude datum	National Geodetic Vertical Datum of 1929	NGVD29
Subbasin hydrologic unit	Lower Susquehanna-Swatara	02050305
Drainage basin		n/a
Date of first construction		n/a
Drainage area	483 square miles	n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer		n/a
Local aquifer		n/a
Local aquifer type		n/a
Well depth		n/a
Hole depth		n/a
Source of depth data		n/a

Monitoring location Swatara Creek near Hershey, PA - USGS-01573560