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				Tule Ponds at Tyson Lagoon is a "Wetland 
				in the City."  This innovative area is used for flood 
				control but also as a wildlife sanctuary for the many species 
				that live in an urban environment.  Since the land is 17 
				acres is is being restored to the flora of a San Francisco Bay 
				area of at least 1 million years old. Native trees, shrubs, and 
				flowers are being introduced which then bring some of the native 
				fauna.  
				 
				The natural lake is caused by the breach in 
				the underground water source (aquifers) by the Hayward fault 
				that dissects the region. This causes what is called a "sag 
				pond."  The 3 ponds are constructed and with time they will 
				become a natural wetland. 
				 
				We are not open to the public, but if you are 
				interested in seeing the facility please sign up for one of our 
				tours or volunteer opportunities.   
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