USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

Pima County, Arizona

Hydrologic Unit Code 15050302

Latitude 31°51'42", Longitude 110°41'26" NAD27

Drainage area 14.1 square miles

Gage datum 4,364 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1962	1962	2.54^Bm	140^Bm
1963	1963	2.57^Bm	145^Bm
1964	1964-09-10	4.78	879
1965	1965-09-08	3.64	480
1966	1966	2.97^Bm	260^Bm
1967	1967-09	3.04^Bd	323^Bd
1968	1968-07-26	6.15	1,600
1969	1969-07-23	1.70	15.0⁴
1970	1970-07-20	5.60	1,350
1971	1971-08	6.87^Bd	1,900^Bd
1972	1972-07	2.92^Bd	240^Bd
1973	1973	1.23^Bm	10.0^4,Bm
1974	1974-09-21	5.64	1,350
1975	1975-09-13	4.60	980
1976	1976-08	5.24^Bd	1,100^Bd
2010	2010-08-15	4.54	213
2011	2011-09-09	7.47	1,780
2012	2012-07-15	4.87	334
2013	2013-09-09	4.91	350
2014	2014-08-01	4.74	284
2015	2015-09-03	5.32	528
2016	2016-08-02	6.57	1,200
2017	2017-07-16	5.08	421
2018	2018-09-02	4.31	138
2019	2019-09-09	4.58	227
2020	2019-11-29	4.30	135²
2021	2021-08-16	8.20	2,310²
2022	2022-08-07	7.50	1,660
2023	2023-08-18	4.27	119

Peak Streamflow Qualification Codes.

2 -- Discharge is an Estimate
4 -- Discharge less than indicated value, which is Minimum Recordable Discharge at this site
Bd -- Day of occurrence is unknown or not exact
Bm -- Month of occurrence is unknown or not exact

USGS 09484580 BARREL CANYON NEAR SONOITA, AZ