located almost entirely in Hays and Travis Counties. 
According to SOS Alliance, water from the aquifer's "contributing zone," in which the City of
Dripping Springs is located, flows eastward on creeks into the "recharge zone," where the water
moves underground through caves, sinkholes, and other openings to fill or "recharge" the aquifer. 
Most of the water from this segment of the aquifer emerges at Barton Springs in Austin, Texas,
which is on the northeast corner of the two zones.
		In November 2002, SOS Alliance filed suit against the City of Dripping Springs and
Todd Purcell in his official capacity as mayor of the City of Dripping Springs (collectively, the
"City"), challenging the municipality's authority to enter into the Development Agreements and the
sufficiency of the information in the public notices for the meetings at which the Agreements were
consideredmany of them enjoy Barton Springs and Barton Creek for other
recreational activities and for purposes of observing and contemplating nature.  One member claimed
that, as a scientist, he has a professional and educational interest in the Barton Springs salamander. 
SOS Alliance alleges that the Development Agreements will result in an increase in pollution in the
aquifer, which will contribute to the declining health of Barton Springs--including the reduction of
water quality, plant life, numbers of fish, and population of the Barton Springs salamander--which
will in turn injure SOS Alliance's members' "environmental, scientific, and recreational interests." 
SOS Alliance contends that injury to these types of interests has been "widely recognized" to
confer standing.
		The Texas cases cited by SOS Alliance to support standing based on environmental
harm involve plaintiffs who own property affected by the defendant's