USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 50049310 QUEBRADA JOSEFINA AT PINERO AVENUE, PR

San Juan Municipio, Puerto Rico

Hydrologic Unit Code 21010005

Latitude 18°24'33", Longitude 66°04'32" NAD27

Drainage area 3.77 square miles

Gage datum 22.9 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1988	1988-08-24	7.77	3,420^C
1989	1989-09-18	8.69	4,320^C
1990	1990-05-09	7.20	2,900^C
1991	1990-10-11	6.40	2,240^C
2019	2019-09-29	9.42⁶	2,430^C,R
2020	2020-09-09	11.15	3,350^C,R
2021	2021-08-04	11.04	3,290^C
2022	2022-02-05	10.98	3,250^C
2023	2023-04-28	9.35	2,390^C
2024	2023-10-27		3,280^C

Peak Gage-Height Qualification Codes.

Peak Streamflow Qualification Codes.

C -- All or part of the record affected by Urbanization, Mining, Agricultural changes, Channelization, or other
R -- Revised

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: 2025-07-09 22:57:51 EDT
0.29 0.28 nadww01