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Pennsylvania Geological Survey

Pennsylvania Water Science Center

Estimates of Mean-Monthly & Annual Ground-Water Recharge

West Branch Clarion River at Wilcox: 03028000

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Data Tables

Mean-Monthly Recharge From RORA Method, as Percent of Annual Recharge for Period of Record -- West Branch Clarion River at Wilcox
OctNovDecJanFebMarAprMayJunJulAugSep
5.5
11.1
10.3
7.6
10.3
17.3
15.8
7.4
4.8
3.0
2.7
4.2


Annual Recharge, in inches -- West Branch Clarion River at Wilcox
YearRecharge From RORABase Flow from PART
1954
25.3
18.2
1955
17.5
17.2
1956
33.1
26.9
1957
18.7
14.8
1958
20.0
18.0
1959
26.8
21.6
1960
16.0
14.3
1961
23.3
18.5
1962
15.6
14.1
1963
19.2
14.5
1964
21.4
16.2
1965
22.6
20.0
1966
19.6
15.8
1967
27.1
21.8
1968
20.2
16.7
1969
18.2
16.0
1970
31.6
25.8
1971
19.8
14.8
1972
28.9
23.9
1973
24.5
18.8
1974
30.0
25.6
1975
28.7
22.4
1976
21.8
18.7
1977
30.0
22.0
1978
23.5
19.9
1979
33.1
25.0
1980
20.3
17.0
1981
25.9
18.9
1982
22.1
19.1
1983
23.2
19.9
1984
35.4
25.8
1985
22.9
21.5
1986
24.5
18.9
1987
25.6
21.3
1988
15.4
13.4
1989
23.1
20.3
1990
35.8
26.5
1991
15.5
14.3
1992
35.3
26.0
1993
19.8
19.8
1994
29.5
23.0
1995
17.8
15.0
1996
33.1
23.4
1997
24.0
20.4
1998
18.0
14.6
1999
18.6
16.4
2000
20.5
16.1
2001
16.5
14.4

 

 

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