Arroyo Mocho

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Arroyo Mocho
stream
Country United States
State California
Regions Alameda County, Santa Clara County
Cities Pleasanton, Livermore
Source spring
 - location 18 mi (30 km) east of Milpitas
 - elevation 3,160 ft (963 m)
 - coordinates 37°27′13″N 121°31′22″W / 37.45361°N 121.52278°W / 37.45361; -121.52278 [1]
Mouth Arroyo de la Laguna
 - location Pleasanton, California
 - elevation 315 ft (96 m) [1]
 - coordinates 37°40′37″N 121°54′44″W / 37.67694°N 121.91222°W / 37.67694; -121.91222 [1]

Arroyo Mocho is a 34.7-mile-long (55.8 km)[2] stream in eastern Alameda County, California that traverses the cities of Livermore and Pleasanton.[3]

The underlying aquifer is the Mocho Subbasin, whose eastern boundary is the Tesla Fault. Some groundwater flow occurs across this fault boundary, but flows are discontinuous below a depth of 50 feet (15 m) across the Tesla Fault and south of the Arroyo Mocho channel across the Livermore Fault.[4]

See also

References

  1. ^ a b c U.S. Geological Survey Geographic Names Information System: Arroyo Mocho
  2. ^ U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed March 15, 2011
  3. ^ On Line Map of Arroyo Mocho Watershed
  4. ^ Environmental Site Screening Analysis, 2127 Railroad Avenue, Livermore, California, Earth Metrics rpt no. 7785, San Mateo, Ca., Feb., 1989



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