Figure: 30 TAC §298.480(15)

United States Geological Survey Gage 08108700, Brazos River at SH 21 near Bryan
Season Subsistence Hydrologic
Condition		 Base Dry
Condition
Seasonal
Pulse		 Average
Condition
Seasonal
Pulse		 Wet
Condition
Seasonal
Pulse
Winter 300 cfs Dry 540 cfs 1 per season
Trigger:
3,230 cfs
Volume:
21,100 af
Duration:
7 days		 3 per season
Trigger:
3,320 cfs
Volume:
21,100 af
Duration:
7 days		 2 per season
Trigger:
5,570 cfs
Volume:
41,900 af
Duration:
10 days
Average 860 cfs
Wet 1,760 cfs
Spring 300 cfs Dry 710 cfs 1 per season
Trigger:
6,050 cfs
Volume:
49,000 af
Duration:
11 days		 3 per season
Trigger:
6,050 cfs
Volume:
49,000 af
Duration:
11 days		 2 per season
Trigger:
10,400 cfs
Volume:
97,000 af
Duration:
14 days
Average 1,260 cfs
Wet 2,460 cfs
Summer 300 cfs Dry 630 cfs 1 per season
Trigger:
2,060 cfs
Volume:
12,700 af
Duration:
7 days		 3 per season
Trigger:
2,060 cfs
Volume:
12,700 af
Duration:
7 days		 2 per season
Trigger:
2,990 cfs
Volume:
20,100 af
Duration:
8 days
Average 920 cfs
Wet 1,470 cfs

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