City of San Antonio, Parks and Recreation Department,
Edwards Aquifer Protection Program and San Antonio River Authority
by:
Mauricio E. Flores, Ronald T. Green, PhD, P.G., Kindra Nicholaides,
Paul Southard, Rebecca Nunu, David Ferrill, PhD, P.G., Gary Walter, PhD,
Stuart Stothoff, PhD, P.G., Nicholas Martin, P.G., P.H.
Southwest Research Institute®