Figure: 30 TAC §298.380(c)(15)(A)

United States Geological Survey Gage 08188500, San Antonio River at Goliad:
Subsistence Flows, Base Flows, and Small Seasonal Pulses
Season Hydrologic Condition Subsistence Base Small Seasonal Pulse
Winter Dry 60 cfs 200 cfs Trigger: 1,520 cfs
Volume: 12,800 af
Duration: 19 days
Frequency: 1 per season
Winter Average N/A 329 cfs
Winter Wet N/A 469 cfs
Spring Dry 60 cfs 174 cfs Trigger: 1,570 cfs
Volume: 11,300 af
Duration: 16 days
Frequency: 2 per season
Spring Average N/A 313 cfs
Spring Wet N/A 502 cfs
Summer Dry 60 cfs 139 cfs Trigger: 1,640 cfs
Volume: 11,200 af
Duration: 16 days
Frequency: 1 per season
Summer Average N/A 237 cfs
Summer Wet N/A 481 cfs
Fall Dry 60 cfs 167 cfs Trigger: 2,320 cfs
Volume: 17,600 af
Duration: 19 days
Frequency: 1 per season
Fall Average N/A 280 cfs
Fall Wet N/A 584 cfs

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