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Pennsylvania Geological Survey

Pennsylvania Water Science Center

Estimates of Mean-Monthly & Annual Ground-Water Recharge

Swatara Creek at Harper Tavern: 01573000

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Data Tables

Mean-Monthly Recharge From RORA Method, as Percent of Annual Recharge for Period of Record -- Swatara Creek at Harper Tavern
OctNovDecJanFebMarAprMayJunJulAugSep
4.9
9.0
10.8
9.9
12.2
17.2
12.4
9.7
4.3
3.5
2.7
3.4


Annual Recharge, in inches -- Swatara Creek at Harper Tavern
YearRecharge From RORABase Flow from PART
1919
20.3
17.5
1920
22.5
16.0
1921
13.7
12.0
1922
15.0
12.0
1923
15.5
10.9
1924
17.9
16.7
1925
18.0
14.8
1926
20.9
15.7
1927
20.2
17.0
1928
15.4
14.0
1929
15.2
12.3
1930
11.8
9.9
1931
6.3
5.1
1932
13.3
10.7
1933
19.7
16.8
1934
16.6
13.1
1935
15.5
11.1
1936
17.1
14.7
1937
20.0
17.7
1938
20.1
15.9
1939
14.5
12.4
1940
24.5
16.6
1941
9.6
8.2
1942
23.5
17.2
1943
18.1
15.9
1944
15.0
11.9
1945
27.8
21.5
1946
16.8
14.0
1947
20.5
16.0
1948
22.6
15.8
1949
14.2
12.8
1950
21.5
16.9
1951
22.2
16.9
1952
26.0
20.6
1953
22.7
16.5
1954
14.3
10.7
1955
16.3
12.7
1956
19.1
15.6
1957
15.1
11.2
1958
19.1
16.7
1959
17.1
12.4
1960
15.8
14.1
1961
19.8
15.8
1962
13.6
11.3
1963
14.0
10.9
1964
16.6
13.6
1965
9.2
7.2
1966
10.3
7.8
1967
18.7
14.6
1968
13.5
11.5
1969
11.5
9.0
1970
20.8
17.0
1971
22.7
17.1
1972
24.9
19.6
1973
22.4
17.3
1974
18.0
16.9
1975
22.1
18.8
1976
23.2
17.4
1977
20.1
16.3
1978
18.3
16.8
1979
24.9
19.3
1980
10.6
8.7
1981
8.5
7.7
1982
18.0
13.8
1983
22.1
17.8
1984
22.5
18.6
1985
10.9
9.7
1986
17.8
13.5
1987
14.8
12.5
1988
12.5
10.3
1989
17.9
16.6
1990
19.7
15.8
1991
12.6
10.4
1992
19.3
14.6
1993
19.9
18.0
1994
24.8
19.5
1995
13.7
11.9
1996
34.9
23.4
1997
12.4
11.2
1998
21.3
17.6
1999
13.3
11.0
2000
18.2
14.3
2001
11.8
9.7

 

 

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