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DELINEATION OF SUBTERRANEAN STREAMS AND POTENTIAL STREAM DEPLETION AREAS

SANTA ROSA QUADRANGLE

Cotati

Kenwood

Calistoga

Two Rock Glen Ellen

Sebastopol

Healdsburg

Santa Rosa

Mark West

Springs

Santa Rosa

Cotati

Mark West Springs

Kenwood

Sebastopol

Calistoga

Two Rock Glen Ellen

Healdsburg

1935000

1935000

1940000

1940000

1945000

1945000

5800

00 5800

00

5850

00 5850

00

5900

00 5900

00

INDEX TO USGS 7.5' QUADRANGLES

Basemap: Topographic Map 1:24,000 Scale (U.S. Geological Survey)

State Plane Coordinates, NAD 1983, California Zone 2, Feet

Mapped stream channel and associated alluvial depositswithin a potential stream depletion area. Wells pumping fromthese deposits are likely to result in greater and more immediate stream depletion.

Subterranean Flow

Note: Because the delineated areas on this map were basedon information readily available at the time of its development,this map does not claim to represent all of the subterraneanstreams or potential stream depletion areas that exist in the area. Site specific investigations will be needed to verify the existenceof subterranean streams or potential stream depletion areas.

4,000 0 4,0002,000 Feet «

Potential Stream Depletion Area

MARCH 9, 2008

REFERENCEGraymer, R.W., Brabb, E.E., Jones, D.L., Barnes, J., Nicholson, R.S., and Stamski, R.E., 2007, Geologic map and map database of eastern Sonoma and western Napa counties, California: U.S. Geological Survey, Scientific Investigations Map SIM-2956, scale 1:100,000.

SANTA ROSA

Note: Some of the delineated areas on this map do not match seamlessly with the delineated areas in adjoining quads because of differences in the geologic source maps that were used.