us coleto creek park lake wood park laboratory services bids & notices employment contact us streamflow data basin summary drought conservation flood information rainfall data rainfall map board meetings press releases bids & notices publications & multimedia lake management studies transparency geronimo creek watershed plum creek watershed clean rivers program laboratory services laboratory services education program canyon reservoir hazard mitigation river heritage tour lake gonzales lake nolte lake placid lake dunlap lake mcqueeney lake wood park coleto creek park nolte island overview board of directors general manager management team volunteers operations employment contact us canyon release and flow notices 10.06.16 canyon releases to be reduced 09.27.16 notice regarding change in canyon flows 09.22.16 canyon releases to be reduced 09.16.16 canyon release to be reduced 09.12.16 notice regarding canyon flow releases gbra of texas latest news more 10.10.16 gbra and nbu develop mou to cooperate 10.06.16 canyon releases to be reduced 10.06.16 two executives appointed at gbra 09.27.16 notice regarding change in canyon flows 09.22.16 gbra and tap meet to initiate work under agreement featured stories river run summer 2016 now published as patteson takes the reins at gbra he begins to shape his vision for its future . he plans to engage all available resources to forge new partnerships to manage and develop water resources for the next 80 years . gbra board meeting sep. 21 2016 final board meeting for retiring general manager bill west . 2016 clean rivers program basin highlights report now available this report is generated annually and includes an overview of water quality monitoring efforts in the guadalupe river basin a description of the water quality conditions of the basin and more . watershed summary more current conditions more j 17 well 675.9 msl 0.2 guadalupe spring branch 197 cfs 3 canyon reservoir 908.97 msl 0.00 guadalupe sattler 147 cfs 0 comal springs 376 cfs 0 san marcos springs 293 cfs 0 guadalupe gonzales 1100 cfs 220 guadalupe victoria 1220 cfs 10 coleto reservoir 96.04 msl 0.02 guadalupe tivoli 1840 cfs 70 0.00 indicates change in 24 hours . sources of flow at victoria canyon release 12.05 % comal springs 30.82 % san marcos springs 24.02 % natural base flow 33.11 % percentages reflect sources . losses and diversions not included . charts last 28 days at canyon reservoir guadalupe spring branch guadalupe sattler comal springs san marcos springs guadalupe seguin guadalupe gonzales guadalupe cuero guadalupe victoria coleto reservoir guadalupe tivoli preservation matters the guadalupe blanco river trust was founded in 2001 to conserve land in the guadalupe river watershed . san antonio bay foundation founded in 2008 to protect and preserve the bay and estuary at the end of the guadalupe river basin . canyon lake gorge within days following the flood of 2002 the floodwaters carved a gorge into the landscape below the canyon lake spillway . guadalupe river foundation formed to establish a system for funding construction operation and maintenance of environmental learning centers and programs . 1998 guadalupe blanco river authority home contact us like gbra of texas on facebook follow gbratx on twitter follow gbratx on instagram get up to date info during flood events . public information press releases board meetings studies publications & multimedia lake management bids & notices transparency water quality clean rivers program laboratory services plum creek watershed geronimo creek watershed community education program laboratory services canyon reservoir hazard mitigation river heritage tour recreation coleto creek park lake wood park nolte island park lake dunlap lake mcqueeney lake placid lake nolte lake gonzales about us overview board of directors general manager management team employment operations volunteers contact us