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Pennsylvania Geological Survey

Pennsylvania Water Science Center

Estimates of Mean-Monthly & Annual Ground-Water Recharge

Little Shenango River at Greenville: 03102500

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Data Tables

Mean-Monthly Recharge From RORA Method, as Percent of Annual Recharge for Period of Record -- Little Shenango River at Greenville
OctNovDecJanFebMarAprMayJunJulAugSep
4.3
10.0
11.5
11.2
14.0
17.9
12.3
7.3
4.2
2.3
2.2
2.7


Annual Recharge, in inches -- Little Shenango River at Greenville
YearRecharge From RORABase Flow from PART
1926
14.8
12.6
1927
14.2
10.5
1928
14.0
13.1
1929
16.1
13.6
1930
9.8
8.6
1931
7.1
5.5
1932
10.8
8.3
1933
9.2
8.4
1934
7.3
6.1
1935
6.5
5.4
1936
10.0
7.5
1937
12.5
11.0
1938
9.1
8.6
1939
8.5
7.3
1940
12.7
8.7
1941
6.2
6.4
1942
15.5
10.5
1943
10.0
10.2
1944
8.1
6.8
1945
13.2
11.0
1946
9.6
8.4
1947
12.5
11.7
1948
11.6
8.7
1949
8.5
7.8
1950
13.5
11.3
1951
14.4
11.9
1952
10.7
10.2
1953
8.4
7.1
1954
11.8
8.1
1955
10.2
9.8
1956
15.8
13.4
1957
10.5
8.7
1958
9.3
7.7
1959
15.4
11.8
1960
9.0
8.0
1961
9.3
7.7
1962
6.1
5.5
1963
7.1
6.2
1964
11.2
8.0
1965
14.4
10.3
1966
9.1
8.2
1967
11.1
9.7
1968
11.0
8.8
1969
7.9
7.7
1970
11.2
9.6
1971
10.5
7.5
1972
16.0
13.4
1973
13.8
11.0
1974
15.7
13.8
1975
13.9
11.3
1976
11.1
9.7
1977
14.8
11.5
1978
10.9
9.1
1979
15.4
12.1
1980
11.1
10.1
1981
15.5
12.4
1982
15.2
11.2
1983
13.5
10.9
1984
16.3
12.5
1985
15.0
12.3
1986
12.4
9.5
1987
13.9
11.2
1988
11.2
9.2
1989
12.0
11.5
1990
19.8
14.9
1991
7.8
8.7
1992
14.9
12.1
1993
12.9
11.2
1994
13.5
10.9
1995
9.5
7.3
1996
18.9
14.7
1997
13.9
11.9
1998
10.9
9.5
1999
8.6
7.8
2000
10.6
8.4
2001
8.9
7.5

 

 

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