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Martis Valley Groundwater Management Plan - Placer County Water ...

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ELEVATION (FEET NAVD88)<br />

B<br />

West<br />

7500<br />

7000<br />

6500<br />

6000<br />

5500<br />

5000<br />

4500<br />

4000<br />

752945<br />

Tt<br />

?<br />

180560<br />

312956<br />

NOTES:<br />

1. Approximate vertical exaggeration = 5x.<br />

2. Elevation profile developed from 30-meter digital elevation model,<br />

downloaded from National Elevation Dataset<br />

(http://seamless.usgs.gov/index.php).<br />

3. Well log locations are approximate within 600 feet.<br />

Tv<br />

?<br />

Qv<br />

\\192.168.1.152\gis\Projects\210142 <strong>Martis</strong> GMP\CrossSection\110925ProfileB_BFinalDraft.ai<br />

290853<br />

?<br />

312985<br />

354807<br />

0 10,000 20,000<br />

Qgo<br />

?<br />

Highway 89<br />

?<br />

38890<br />

753025<br />

?<br />

323656<br />

153113<br />

186854<br />

119903<br />

4. Fault locations are approximate, based on Saucedo, “Geologic Map of Lake Tahoe Basin,”<br />

2005 and Hunter and others, 2011.<br />

5. Surficial geology inferred from Saucedo, 2005.<br />

6. Significant sand, gravel, and clay beds shown where noted in well logs.<br />

7. Fracture zones shown where noted in well logs.<br />

?<br />

290858<br />

233993<br />

Prosser Village Well<br />

DISTANCE IN FEET<br />

?<br />

?<br />

712059<br />

181525<br />

Qgo<br />

Qpc<br />

Qps<br />

Qgo<br />

Qpc<br />

Qpc<br />

Qps<br />

Qv<br />

Tt<br />

Cross-Section A-A’<br />

Polaris Fault<br />

Tv<br />

?<br />

?<br />

753383<br />

Qv<br />

Tt<br />

Tv<br />

Truckee River<br />

?<br />

Qv<br />

?<br />

233946<br />

Qgo<br />

Qv<br />

?<br />

Qjf<br />

433600<br />

?<br />

Tt<br />

Qjf<br />

Tv<br />

65421<br />

30,000 40,000<br />

Qv<br />

References:<br />

Birkeland, P.W., 1963 Pleistocene History of the Truckee area, north of Lake Tahoe, California, Geological Society of America<br />

Bulletin, v. 64, p. 1453-1464.<br />

Hunter, L.E., Howle, J.F., Rose, R.S., and Bawden, G.W., 2011, LiDAR – assisted identification of an active fault near Truckee,<br />

California, Bulletin of the Seismological Society of America, v. 101, n. 3, p. 1162-1181.<br />

Latham, T.S., 1985, Stratigraphy, structure, and geochemistry of Plio-Pleistocene volcanic rocks of the western Basin and Range<br />

Province, near Truckee, California, unpublished doctoral dissertation, University of California, Davis, 341 p.<br />

Melody, A., 2009, Active faulting and Quaternary paleohydrology of the Truckee Fault Zone north of Truckee, California, MS<br />

Thesis, Humboldt State University, Humboldt, CA 71 p.<br />

Saucedo, G.J., 2005, Geologic Map of Lake Tahoe Basin, California and Nevada, California<br />

Geological Survey Regional Geologic Map Series, Map No. 4, 1:100,000 scale.<br />

?<br />

Qls<br />

561677<br />

769296<br />

Qv<br />

?<br />

Qgo<br />

Vertical Exaggeration ~5x<br />

B’<br />

East<br />

7500<br />

7000<br />

6500<br />

6000<br />

5500<br />

5000<br />

4500<br />

ELEVATION (FEET NAVD88)<br />

Plate 2: Cross-section B-B’<br />

<strong>Martis</strong> <strong>Groundwater</strong> Basin,<br />

<strong>Placer</strong> and Nevada Counties, California<br />

Qg<br />

Qgo<br />

Qls<br />

Qjf<br />

Qpc<br />

Qv<br />

QPs<br />

Tt<br />

Tv<br />

?<br />

429743<br />

GlacialTill/Moraine<br />

Glacial Outwash deposits<br />

Landslide deposits<br />

Juniper Flat alluvium<br />

(Pleistocene)<br />

Prosser Creek alluvium<br />

(Pleistocene)<br />

Lousetown Volcanics<br />

(Pleistocene)<br />

Lousetown Interbedded Sediments<br />

(Unnamed gravels, sand and alluvium)<br />

(Pliocene and (or) Pleistocene)<br />

Truckee Formation<br />

(Lake and Stream Deposits)<br />

Tertiary Volcanics<br />

Sands and Gravels<br />

Clay Bed<br />

Tuff/Ash<br />

Interbedded Basalt<br />

and Andesite Basalt<br />

Fracture Zone<br />

Lithologic Contact<br />

Inferred Lithologic Contact<br />

Fault, direction of displacement<br />

(dashed where inferred)<br />

Well log<br />

©2011 Balance Hydrologics, Inc.

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