USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 09483025 SILVERCROFT WASH AT TUCSON AZ

Pima County, Arizona

Hydrologic Unit Code 15050301

Latitude 32°13'53", Longitude 111°00'10" NAD27

Drainage area 2.74 square miles

Gage datum 2,350 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1965	1965-07-10		560^7,C
1969	1969-08		365^Bd,C
1970	1970-07-20		1,500^C
1971	1971-08	6.70^Bd	1,450^Bd,C
1972	1972		100^2,Bm,C
1973	1973-07	3.48^Bd	115^Bd,C
1974	1974-07-20	2.20	5.00^4,C
1975	1974-10-30	2.45	10.0^4,C
1976	1976-09-25	1.99	310^C
1977	1977-01-01	0.57	63.0^C
1978	1977-10-06	1.89	290^C
1979	1979-07-20	0.07	19.0^C
1980	1980-08-24	0.65	72.0^C
1981	1981-07-21	0.12	22.0^C

Peak Gage-Height Qualification Codes.

Peak Streamflow Qualification Codes.

2 -- Discharge is an Estimate
4 -- Discharge less than indicated value, which is Minimum Recordable Discharge at this site
7 -- Discharge is an Historic Peak
Bd -- Day of occurrence is unknown or not exact
Bm -- Month of occurrence is unknown or not exact
C -- All or part of the record affected by Urbanization, Mining, Agricultural changes, Channelization, or other

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 17:11:39 EDT
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