USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 50010600 RIO GUAJATACA ABV LAGO DE GUAJATACA, PR

San Sebastian Municipio, Puerto Rico

Hydrologic Unit Code 21010003

Latitude 18°19'57", Longitude 66°54'59" NAD27

Gage datum 565 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1984	1984-09-13	10.82	1,910
1985	1985-05-18	12.03	2,600
1986	1985-10-27	11.95	2,550
1987	1986-10-18	10.58	1,780
1988	1987-10-07	11.77	2,450
1989	1989-07-13	9.64	1,340

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: 2025-07-12 16:24:38 EDT
0.27 0.26 nadww02