San Leandro topographic map

Name: San Leandro topographic map, elevation, terrain.

Location: San Leandro, Alameda County, CAL Fire Northern Region, California, United States (37.66741 -122.20973 37.74275 -122.12258)

Average elevation: 21 m

Minimum elevation: -5 m

Maximum elevation: 238 m

The San Leandro Hills run above the city to the northeast. In the lower elevations of the city, an upper regionally contained aquifer is located 50 to 100 feet (15 to 30 m) below the surface. At least one deeper aquifer exists approximately 250 feet (75 m) below the surface. Some salt water intrusion has taken place in the San Leandro Cone. Shallow groundwater generally flows to the west, from the foothills toward San Francisco Bay. Shallow groundwater is contaminated in many of the locales of the lower elevation of the city. Contamination by gasoline, volatile organic compounds and some heavy metals has been recorded in a number of these lower-elevation areas.

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