USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 09486490 SANTA CRUZ RIVER AT INA RD NR TUCSON AZ

Pima County, Arizona

Hydrologic Unit Code 15050301

Latitude 32°20'17", Longitude 111°04'50" NAD27

Drainage area 2,612.31 square miles

Gage datum 2,160 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1991	1991-03-01	12.98	6,360
1992	1992-08-24		1,600¹

Peak Streamflow Qualification Codes.

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 17:10:00 EDT
0.36 0.35 nadww01