Point Potrero Pond
Encyclopedia
Potrero Hills Pond is a small lake
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

 in Richmond, California
Richmond, California
Richmond is a city in western Contra Costa County, California, United States. The city was incorporated on August 7, 1905. It is located in the East Bay, part of the San Francisco Bay Area. It is a residential inner suburb of San Francisco, as well as the site of heavy industry, which has been...

. It was formed from quarrying of hills near Potrero Hills
Potrero Hills (Richmond, California)
The Potrero Hills also known as the Potrero Ridge and Point Molate Hills is a chaparral and forested escarpment of that crests northwest to southeast along the San Pablo Peninsula in Richmond, California.-History:...

 at the Blake Brothers Quarry. It is fed by underground springs. It is now polluted and surrounded by a Chevron Richmond Refinery
Chevron Richmond Refinery
The Chevron Richmond Refinery is a petroleum refinery in Richmond, California, on San Francisco Bay. It is owned and operated by Chevron Corporation and employs more than 1,200 workers, making it the city's largest employer. The refinery processes approximately of crude oil a day in the...

 tank farm
Tank farm
Tank farm may refer to the:*Alternate name for an oil depot, a facility for storage of liquid petroleum products or petrochemicals*Tank Farm, also known as 'Tuff Crater', a volcanic crater in the Auckland Volcanic Field, New Zealand...

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