USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 50094200 RIO GRANDE DE PATILLAS AT PATILLAS, PR

Patillas Municipio, Puerto Rico

Hydrologic Unit Code 21010004

Latitude 18°00'15", Longitude 66°01'27" NAD27

Drainage area 27.9 square miles

Gage datum 246.1 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1967	1966-10-17	11.18
1969	1969-06-20	11.95	2,400
1971	1970-10-07	15.50	9,000

U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Peak Streamflow
URL: https://nwis.waterdata.usgs.gov/nwis/peak?

Page Contact Information: USGS Water Data Support Team
Page Last Modified: 2025-05-09 13:42:44 EDT
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