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Central Valley Aquifer, Chapters A and B - MAE Class Websites

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WATER FLOW, IN MILLIONS OF ACRE-FEET PER YEAR<br />

A<br />

40<br />

30<br />

20<br />

10<br />

0<br />

-10<br />

-20<br />

-30<br />

<strong>Aquifer</strong>-System Storage<br />

<br />

<br />

( <strong>and</strong> <br />

<br />

-<br />

<br />

<br />

Simulation Results <strong>and</strong> Budget 197<br />

-40<br />

1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002<br />

L<strong>and</strong>scape recharge<br />

General-head boundary<br />

Farm wells<br />

Pumpage<br />

Stream leakage<br />

Subsidence<br />

Storage<br />

YEAR<br />

EXPLANATION<br />

Groundwater Surface water<br />

L<strong>and</strong>scape recharge<br />

General-head boundary<br />

Pumpage<br />

Figure C31. Groundwater budget changes through time for the <strong>Central</strong> <strong>Valley</strong>. A, All values. B, Net values.<br />

Stream leakage<br />

Subsidence<br />

Storage<br />

Flow into groundwater<br />

system<br />

Flow from groundwater<br />

system<br />

<br />

<br />

<strong>and</strong> <br />

<br />

<br />

-

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