Figure: 30 TAC §298.380(c)(4)

United States Geological Survey Gage 08172000, San Marcos River at Luling
Season Subsistence Base Small Seasonal Pulse
(2 per season)
Large Seasonal Pulse
(1 per season)
Winter 89 cfs 210 cfs Trigger: 340 cfs
Volume: 1,800 af
Duration: 8 days
Trigger: 1,330 cfs
Volume: 11,400 af
Duration: 23 days
Spring 89 cfs 220 cfs Trigger: 1,140 cfs
Volume: 6,800 af
Duration: 14 days
Trigger: 1,999 cfs
Volume: 18,000 af
Duration: 21 days
Summer 73 cfs 220 cfs Trigger: 240 cfs
Volume: 1,090 af
Duration: 6 days
Trigger: 500 cfs
Volume: 2,670 af
Duration: 9 days
Fall 81 cfs 200 cfs Trigger: 540 cfs
Volume: 2,740 af
Duration: 9 days
Trigger: 1,710 cfs
Volume: 11,200 af
Duration: 18 days

cfs = cubic feet per second
af = acre-feet