Figure: 30 TAC §298.380(c)(12)(A)

United States Geological Survey Gage 08181800, San Antonio River near Elmendorf:
Subsistence Flows, Base Flows, and Small Seasonal Pulses
Season	Hydrologic Condition	Subsistence	Base	Small Seasonal Pulse (1 per season)
Winter	Dry	60 cfs	115 cfs	Trigger: 830 cfs Volume: 6,210 af Duration: 14 days
Winter	Average	N/A	262 cfs
Winter	Wet	N/A	328 cfs
Spring	Dry	60 cfs	106 cfs	Trigger: 1,560 cfs Volume: 10,700 af Duration: 16 days
Spring	Average	N/A	237 cfs
Spring	Wet	N/A	364 cfs
Summer	Dry	60 cfs	87 cfs	Trigger: 1,110 cfs Volume: 6,460 af Duration: 12 days
Summer	Average	N/A	178 cfs
Summer	Wet	N/A	341 cfs
Fall	Dry	60 cfs	92 cfs	Trigger: 1,010 cfs Volume: 6,570 af Duration: 13 days
Fall	Average	N/A	223 cfs
Fall	Wet	N/A	367 cfs

cfs = cubic feet per second
af = acre-feet
N/A = not applicable