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Pennsylvania Geological Survey

Pennsylvania Water Science Center

Estimates of Mean-Monthly & Annual Ground-Water Recharge

Tioga River at Tioga: 01518000

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Data Tables

Mean-Monthly Recharge From RORA Method, as Percent of Annual Recharge for Period of Record -- Tioga River at Tioga
OctNovDecJanFebMarAprMayJunJulAugSep
4.8
9.3
9.2
7.0
8.0
23.0
17.0
12.3
3.4
1.8
1.8
2.2


Annual Recharge, in inches -- Tioga River at Tioga
YearRecharge From RORABase Flow from PART
1939
7.1
6.3
1940
11.1
8.6
1941
4.8
4.8
1942
12.6
8.3
1943
10.4
9.0
1944
8.1
6.4
1945
12.9
12.3
1946
11.4
9.5
1947
10.8
9.7
1948
11.9
8.9
1949
7.5
7.2
1950
13.9
12.0
1951
11.3
9.5
1952
12.7
9.8
1953
11.9
9.3
1954
7.9
6.7
1955
11.0
8.0
1956
14.8
11.1
1957
10.3
8.8
1958
14.1
12.0
1959
11.0
8.8
1960
11.5
9.0
1961
10.5
8.0
1962
8.2
7.0
1963
7.2
6.2
1964
7.2
6.9
1965
4.8
4.7
1966
8.4
6.9
1967
11.1
9.8
1968
11.3
8.9
1969
8.5
6.5
1970
14.7
11.4
1971
15.5
12.0
1972
17.9
14.2
1973
13.7
10.5
1974
11.4
10.3
1975
13.8
10.5
1976
13.1
10.4

 

 

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