USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 09400565 POLACCA WASH TRIB NR CHINLE, ARIZ.

Navajo County, Arizona

Hydrologic Unit Code 15020013

Latitude 36°02'50", Longitude 110°04'50" NAD27

Drainage area 6.45 square miles

Contributing drainage area 6.45 square miles

Gage datum 6,100 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1964	1964-09-20	2.07	7.00²
1965	1965-09-19	4.99	247
1966	1966	2.56^Bm	43.0^Bm
1967	1967-09	5.66^Bd	295^Bd
1968	1968-08	2.52^Bd	20.0^2,Bd
1969	1969-09-11	7.32	485
1970	1970	5.32^Bm	275^Bm
1971	1971-08-26	8.12	610
1972	1972	6.89^Bm	540^Bm
1973	1972-10-19	10.25	940
1974	1974-07-21	10.03	900
1975	1975-09-07	11.60	1,130
1976	1976	4.57^Bm	180^Bm

Peak Gage-Height Qualification Codes.

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: 2025-07-01 08:40:09 EDT
0.29 0.28 nadww02