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

80 Groundwater Availability of the Central Valley Aquifer, California
A
3%
21%
MILLIONS OF ACRE-FEET
Sacramento
45%
MILLIONS OF ACRE-FEET
1.0
0.5
0.0
-0.5
-1.0
MILLIONS OF ACRE-FEET
5% 0%0%
1.0
0.5
0.0
-0.5
-1.0
26%
1.0
0.5
0.0
-0.5
-1.0
MILLIONS OF ACRE-FEET
4
3
2
1
0
-1
-2
-3
-4
-5
-0.29
0 50 100 Miles
0 50 100 Kilometers
Shaded relief derived from U.S. Geological Survey
National Elevation Dataset, 2006. Albers Equal Area Conic Projection
2
1
3
0
MILLIONS OF ACRE-FEET
1.0
0.5
0.0
-0.5
-1.0
-0.03
-1.66
1
2
3
2.88
6
4
-1.37
5
6
7
MILLIONS OF ACRE-FEET
-0.18
1.0
0.5
0.0
-0.5
-1.0
MILLIONS OF ACRE-FEET
EXPLANATION
Net annual groundwater budget,
water years 1962-2003
Specific yield and
compressibility of water
Flow of groundwater
to Delta
Elastic and inelastic
matrix storage
Stream interaction
Landscape recharge
MILLIONS OF ACRE-FEET
1.0
0.5
0.0
-0.5
-1.0
1
1.0
0.5
0.0
-0.5
-1.0
Pumpage
Flow between regions or
water-balance subregion
Central Valley boundary
Water-balance subregion
boundary and identifier
Figure B10. Average annual groundwater budget for the A, Sacramento Valley. B, Delta and Eastside Streams. C, San Joaquin Valley.
D, Tulare Basin. Schematic bar charts of average annual groundwater budget for the 21 water-balance subregions (WBSs) in the
Central Valley also are shown.
4
7
5