USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 11525630 GRASS VALLEY C NR LEWISTON CA

Trinity County, California

Hydrologic Unit Code 18010211

Latitude 40°41'12", Longitude 122°51'36" NAD27

Drainage area 36.2 square miles

Gage datum 1,680 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
2005	2004-12-27	5.14	379
2006	2005-12-30	6.12	1,070
2007	2007-02-22	4.73	214
2008	2008-01-04	5.02	304
2009	2009-03-02	5.71	961
2010	2010-02-05	5.82	1,030
2011	2011-03-24	5.46	581
2012	2012-03-28	5.40	533
2013	2012-12-02	6.10	1,150
2014	2014-04-04	4.50	138
2015	2014-12-11	6.00	882
2016	2016-03-11	6.49	585
2017	2017-02-09	7.66	863
2018	2018-04-07	5.10	202
2019	2019-02-27	8.02²	1,000

Peak Gage-Height 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: 2024-12-23 00:02:08 EST
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