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

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94 Groundwater Availability of the <strong>Central</strong> <strong>Valley</strong> <strong>Aquifer</strong>, California<br />

WATER-LEVEL ALTITUDE, IN FEET ABOVE NGVD 29<br />

250<br />

200<br />

150<br />

100<br />

50<br />

NGVD<br />

29<br />

NGVD<br />

29<br />

-100<br />

250<br />

200<br />

150<br />

100<br />

NGVD<br />

29<br />

1960 1970 1980 1990 2000 1960 1970 1980 1990 2000<br />

50<br />

Well 12_22972<br />

-50<br />

1960 1970 1980 1990 2000<br />

200<br />

100<br />

-200<br />

-300<br />

-400<br />

-500<br />

-600<br />

Layer 1<br />

Layer 2<br />

Well 14_30806<br />

L<strong>and</strong>-surface elevation 266 feet<br />

Note scale change<br />

Well 15_34255<br />

-50<br />

-50<br />

1960 1970 1980 1990 2000<br />

1960 1970 1980 1990 2000<br />

WATER YEAR WATER YEAR<br />

Figure B13. Continued.<br />

Layer 2<br />

Layer 3<br />

Layer 4<br />

Layer 5<br />

Layer 6<br />

Layer 7<br />

Layer 8<br />

Layer 9<br />

Layer 10<br />

250<br />

200<br />

150<br />

100<br />

NGVD<br />

29<br />

250<br />

200<br />

150<br />

100<br />

NGVD<br />

29<br />

EXPLANATION<br />

-50<br />

1960 1970 1980 1990 2000<br />

L<strong>and</strong>-surface elevation at well Simulated water-level elevation from model for—<br />

Measured head of well<br />

Layer 1<br />

Layer 5<br />

Layer 9<br />

Layer 2<br />

Layer 6<br />

Layer 10<br />

Layer 3<br />

Layer 7<br />

Layer 4<br />

Layer 8<br />

50<br />

200<br />

100<br />

NGVD<br />

29<br />

-100<br />

-200<br />

-300<br />

-400<br />

-500<br />

-600<br />

50<br />

Well 13_25144<br />

Layer 6<br />

Layer 7<br />

Well 14_28350<br />

L<strong>and</strong>-surface elevation 348 feet<br />

Note scale change<br />

Well 15_29737<br />

Layer 3<br />

Layer 4<br />

Layer 5<br />

Layer 6<br />

Layer 7<br />

Layer 8<br />

Layer 9<br />

Layer 10<br />

Layer 6<br />

Layer 7

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