Figure: 30 TAC §298.380(c)(16)

United States Geological Survey Gage 08189500, Mission River at Refugio
Season Hydrologic
Condition		 Subsistence Base Small
Seasonal
Pulse
(2 per season)		 Large
Seasonal
Pulse
(1 per season)
Winter Dry 3 cfs 5 cfs Trigger:
60 cfs
Volume:
310 af
Duration:
8 days		 Trigger:
450 cfs
Volume:
2,340 af
Duration:
15 days
Winter Average N/A 9 cfs
Winter Wet N/A 15 cfs
Spring Dry 2 cfs 5 cfs Trigger:
320 cfs
Volume:
1,440 af
Duration:
10 days		 Trigger:
1,560 cfs
Volume:
7,910 af
Duration:
18 days
Spring Average N/A 8 cfs
Spring Wet N/A 14 cfs
Summer Dry 1 cfs 4 cfs Trigger:
57 cfs
Volume:
240 af
Duration:
6 days		 Trigger:
420 cfs
Volume:
2,010 af
Duration:
12 days
Summer Average N/A 7 cfs
Summer Wet N/A 12 cfs
Fall Dry 2 cfs 5 cfs Trigger:
45 cfs
Volume:
200 af
Duration:
6 days		 Trigger:
410 cfs
Volume:
2,090 af
Duration:
14 days
Fall Average N/A 8 cfs
Fall Wet N/A 15 cfs

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