Figure: 30 TAC §298.330(e)(7)

United States Geological Survey Gage 08143600, Pecan Bayou near Mullin
Season Hydrologic
Condition		 Subsistence Base Small
Seasonal
Pulse
(2 per season)		 Large
Seasonal
Pulse
(1 per season)		 Annual
Pulse
Winter Severe 1 cfs 3 cfs Trigger:
52 cfs
Volume:
230 af
Duration:
7 days		 Trigger:
250 cfs
Volume:
1,500 af
Duration:
14 days		 Trigger:
3,500 cfs
Volume:
25,800 af
Duration:
26 days
Winter Dry N/A 3 cfs
Winter Average N/A 7 cfs
Winter Wet N/A 12 cfs
Spring Severe 1 cfs 3 cfs Trigger:
710 cfs
Volume:
3,600 af
Duration:
10 days		 Trigger:
2,100 cfs
Volume:
13,200 af
Duration:
17 days
Spring Dry N/A 3 cfs
Spring Average N/A 9 cfs
Spring Wet N/A 19 cfs
Summer Severe 1 cfs 2 cfs Trigger:
21 cfs
Volume:
73 af
Duration:
4 days		 Trigger:
100 cfs
Volume:
440 af
Duration:
7 days
Summer Dry N/A 2 cfs
Summer Average N/A 4 cfs
Summer Wet N/A 8 cfs
Fall Severe 1 cfs 3 cfs Trigger:
36 cfs
Volume:
110 af
Duration:
3 days		 Trigger:
250 cfs
Volume:
1,200 af
Duration:
9 days
Fall Dry N/A 3 cfs
Fall Average N/A 7 cfs
Fall Wet N/A 12 cfs

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