USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

Gwinnett County, Georgia

Hydrologic Unit Code 03070103

Latitude 33°58'42.8", Longitude 83°56'21.0" NAD83

Drainage area 9.97 square miles

Contributing drainage area 9.97 square miles

Gage datum 930.81 feet above NAVD88

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1965	1964-12-25	3.54	640
1966	1966-03-04	4.09	893
1967	1967-04-26	3.40	660
1968	1968-03-12	3.12	520
1969	1969-04-18	4.92	1,620
1970	1970-03-20	3.79	705
1971	1971-03-03	3.84	734
1972	1972-01-10	4.26	1,010
1973	1973-03-16	3.83	728
1974	1973-12-31	4.35	1,080
1995	1995-02-16	3.30	480^C
1996	1995-10-05	4.53	1,230^C
1997	1997-04-28	3.51	565^C
1998	1998-04-09	4.54	1,240^C
1999	1999-06-16	2.88	334^C
2000	2000-03-20	4.50	1,200^C
2001	2001-07-25	3.33	492^C
2002	2002-09-21	3.34	496^C
2003	2003-07-01	4.74	1,440^C
2004	2004-09-16	8.00	2,000^2,C
2006	2006-01-23	4.95⁶	695^2,C
2007	2006-11-15	4.71	605^C
2008	2007-11-22	4.08	461^C
2009	2009-09-21	8.29	2,200^2,C
2010	2010-01-24	4.92	933^C
2011	2010-11-30	2.65	345^C
2012	2012-05-07	1.90	235^C
2013	2013-05-19	3.17	452^C
2014	2014-01-11	2.63	343^C
2015	2015-01-04	2.26	269^C

Peak Streamflow Qualification Codes.

2 -- Discharge is an Estimate
C -- All or part of the record affected by Urbanization, Mining, Agricultural changes, Channelization, or other

USGS 02208050 ALCOVY RIVER NEAR LAWRENCEVILLE, GA