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Pennsylvania Geological Survey

Pennsylvania Water Science Center

Estimates of Mean-Monthly & Annual Ground-Water Recharge

Allegheny River at Port Allegany: 03007800

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Data Tables

Mean-Monthly Recharge From RORA Method, as Percent of Annual Recharge for Period of Record -- Allegheny River at Port Allegany
OctNovDecJanFebMarAprMayJunJulAugSep
6.3
10.5
9.8
8.2
11.2
16.1
14.6
8.4
5.2
2.7
2.7
4.3


Annual Recharge, in inches -- Allegheny River at Port Allegany
YearRecharge From RORABase Flow from PART
1975
24.6
17.9
1976
22.2
17.4
1977
26.9
23.0
1978
20.3
16.5
1979
24.3
18.9
1980
15.0
13.1
1981
23.0
16.4
1982
18.5
14.8
1983
16.4
14.4
1984
29.0
21.6
1985
16.9
15.6
1986
22.1
17.3
1987
20.9
17.4
1988
12.7
10.4
1989
16.8
16.2
1990
29.5
21.2
1991
13.2
11.5
1992
22.2
18.8
1993
17.4
14.7
1994
29.9
22.1
1995
15.9
12.9
1996
28.0
21.0
1997
22.8
17.9
1998
18.8
15.0
1999
13.6
12.2
2000
15.1
12.0
2001
13.3
11.2

 

 

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