The International Boundary & Water Commission, United States Section
Updated Rio Grande National Ownership of Waters Stored At The International Amistad and Falcon Dams
Determination of ownership in the reservoirs is made weekly for the accounting period ending on each Saturday at midnight. Field data collections, exchange of data between the U.S and Mexico, and computation of national ownerships are usually completed by Thursday afternoon or Friday morning of the following week. Data are PRELIMINARY and subject to REVISION.
Estimated ownership @ 2400 hours on 06/08/2013
31.6% of U.S. Total Conservation Capacity
9.8% of Mex. Total Conservation Capacity
Amistad Dam
Water Surface Elevation		Feet	Meters
Top of Normal Conservation		1,117.00	340.462
	@06/08/2013	1,056.41	321.995
Conservation Storages
Country	Million Cubic Meters	Thousand Acre-Feet
United States	2,271	1,841
Mexico	1,770	1,435
Total Conservation*	4,040	3,276
*Values may not sum due to round-off error
Ownership and Releases @ 2400 hours on 06/08/2013
Country	Million Cubic Meters	Thousand Acre-Feet	Requested Releases CMS	Requested Releases CFS
United States	830	673	20.0	706.0
Mexico	156	126	3.00	106.0
Total Storage	987	800	23.0	812.0
% of US Capacity @ Normal Cons.	36.6%
Inflows, Releases, and Losses for week of 06/02-06/08
U.S. Inflows	26.1	Total Inflows	43.2
U.S. Releases	23.7	Total Releases	27.4
U.S. Losses	6.89	Total Losses	8.16
Falcon Dam
Water Surface Elevation		feet	meters
Top of Normal Conservation		301.20	91.805
	@06/08/2013	262.47	80.000
Conservation Storages	Normal Conservation
Country	Million Cubic Meters	Thousand Acre-Feet
United States	1,913	1,551
Mexico	1,352	1,096
Total Conservation*	3,265	2,647
*Values may not sum due to round-off error
Ownership and Releases @ 2400 hours on 06/08/2013
Country	Million Cubic Meters	Thousand Acre-Feet	Requested Releases CMS	Requested Releases CFS
United States	494	400	60.0	2120.0
Mexico	149	121	8.00	283.0
Total Storage	643	521	68.0	2400.0
*Values may not sum due to round-off error
% of US Capacity @ Normal Cons.	25.8%
Inflows, Releases, and Losses for week of 06/02-06/08
U.S. Inflows	17.2	Total Inflows	20.9
U.S. Releases	46.8	Total Releases	54.9
U.S. Losses	8.29	Total Losses	10.8
Note: All dam measurements based on elevation above mean sea level.
Related Info:
U.S. Tributaries:	3,622 TCM	Beginning of Current 5-Year Cycle:		10/25/2010
U.S. Springflow:	8,599 TCM	Deliveries to U.S. during Current Week:		6,907 TCM / 5,599 AF
Combined U.S. flow:	12,221 TCM	Deliveries to U.S. during Current Cycle:		534,603 TCM / 433,408 AF
		U.S. 50/50 water:		1,504 TCM / 1,219 AF
Conversion Table
Rio Grande Flow and Reservoir Storage Conditions (Updated daily Monday through Friday)
1996-Present Amistad-Falcon Ownership Trends
Other Graphics
For further information concerning the content of this page contact:
Mr. William D. Finn
Chief, Water Accounting Division
e-mail: wfinn@ibwc.gov
(915) 832-4789
Last Updated 06/13/2013