This table contains historic Chesapeake Bay annual mean streamflow values for the Susquehanna River and the Potomac River calculated using documented methods. Annual mean streamflow values for the Susquehanna and Potomac Rivers are calculated directly from USGS gaging-station data. Sections A and B provide cumulative streamflow values for flow entering the bay at each of these defined cross sections (see Bue, 1968). Section B-C provides incremental streamflow values for flow entering the bay between two defined cross sections.

Water Year	Susquehanna	Section A	Section A-B, (incr.)	Section B	Potomac	Section B-C (incr.)	Section C
2018	55500	57900	8080	65900	19700	24200	90100
2017	40100	42000	6660	48700	9350	12100	60800
2016	28200	29700	5520	35200	11700	14900	50100
2015	30700	32400	5790	38200	9130	11900	50100
2014	36500	38300	6300	44600	14100	17800	62400
2013	34700	36400	6200	42700	12200	15700	58300
2012	40600	42500	6680	49200	11300	14500	63600
2011	67400	70500	9410	79900	14300	17800	97800
2010	34500	36200	6080	42300	13700	17100	59500
2009	32000	33700	5940	39600	9490	12200	51900
2008	42300	44300	6820	51100	11000	14000	65100
2007	38500	40400	6400	46800	11100	14100	60900
2006	43000	45000	7000	52000	9340	12200	64200
2005	43400	45400	6870	52300	12800	16200	68400
2004	60400	63000	8640	71600	18400	22900	94500
2003	51300	53500	7830	61400	23400	28600	90000
2002	27300	28800	5290	34100	4660	6290	40500
2001	25500	27000	5210	32200	8310	10900	43000
2000	37300	39200	6410	45600	8920	11700	57300
1999	23400	24700	4850	29600	5720	7610	37200
1998	47100	49200	7300	56500	20600	25000	81600
1997	42700	44600	6890	51500	15000	18800	70400
1996	51700	54100	7810	61900	24400	29700	91600
1995	27200	28700	5380	34000	8700	11400	45400
1994	52700	55100	8040	63200	18800	23000	86300
1993	48700	51100	7810	58900	17500	21200	80200
1992	28000	29500	5550	35100	8320	10900	46000
1991	40700	42600	6540	49100	12600	16000	65100
1990	35200	37000	6280	43300	9420	12300	55600
1989	35800	37600	6270	43900	11500	14600	58500
1988	27900	29400	5490	34900	10300	13100	48000
1987	34600	36300	6160	42500	11900	15000	57500
1986	38300	40200	6470	46600	12500	15700	62300
1985	25400	26800	5200	32000	8680	11300	43400
1984	50500	52700	7630	60300	18800	23100	83400
1983	34400	36100	6050	42200	12800	15900	58100
1982	36400	38200	6290	44500	11100	14200	58600
1981	26000	27500	5190	32700	6860	9090	41700
1980	35500	37300	6190	43500	16300	20300	63800
1979	42900	45000	6920	51900	16600	20700	72700
1978	58900	61400	8350	69700	16700	20700	90500
1977	41900	44000	6870	50900	11100	14000	64900
1976	43600	45700	7030	52700	10500	13500	66200
1975	46400	48500	7240	55700	14500	18300	74000
1974	43300	45300	6990	52300	12000	15300	67700
1973	47900	50100	7360	57500	17600	21900	79400
1972	59900	62500	8770	71300	19000	23500	94800
1971	40100	42100	6650	48800	14000	17700	66500
1970	37000	38900	6320	45200	10900	13900	59200
1969	27000	28500	5420	33900	5310	7220	41100
1968	34500	36200	6160	42400	10400	13500	55900
1967	31700	33400	5820	39200	10500	13500	52700
1966	25900	27400	5130	32500	5890	7810	40300
1965	19100	20200	4340	24600	8990	11500	36100
1964	31900	33500	5630	39200	9670	12300	51600
1963	27800	29300	5450	34800	8620	11000	45800
1962	27300	28700	5250	34000	11000	13900	47900
1961	35100	36800	6160	43000	11800	14800	57800
1960	46800	49000	7340	56300	12200	15500	71900
1959	28900	30400	5520	35900	5770	7730	43700
1958	40200	42200	6640	48900	12800	16200	65100
1957	34600	36400	6040	42400	9610	12400	54800
1956	45100	47300	7140	54400	9160	11800	66300
1955	30300	31900	5750	37700	13200	16700	54400
1954	26400	27900	5160	33000	5680	7580	40600
1953	38800	40600	6370	47000	13700	17200	64300
1952	43600	45600	6900	52500	14100	17700	70300
1951	49200	51400	7470	58900	16000	20000	78900
1950	38600	40400	6470	46900	10600	13700	60600
1949	32400	34100	5850	39900	16400	20600	60500
1948	36600	38400	6180	44600	9750	12600	57300
1947	38100	40000	6480	46500	6900	9200	55700
1946	46200	48300	7250	55500	10900	14000	69600
1945	41900	44000	6970	50900	11100	14400	65300
1944	32100	33800	5820	39600	8650	11100	50700
1943	47500	49600	7240	56900	16300	20300	77200
1942	31200	32800	5730	38600	8760	11400	49900
1941	25800	27300	5220	32500	8920	11700	44200
1940	34700	36600	6320	42900	11100	14200	57100
1939	31500	33100	5640	38700	10800	13800	52500
1938	35100	36900	6200	43100	10400	13500	56600
1937	40200	42100	6790	48900	15600	19500	68400