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 06/14/2025
22.8% of U.S. Total Conservation Capacity
7.5% of Mex. Total Conservation Capacity
Amistad Dam
Water Surface Elevation		Feet	Meters
Top of Normal Conservation		1,117.00	340.462
	@06/14/2025	1,049.98	320.035
Conservation Storages
Country	Million Cubic Meters	Thousand Acre-Feet
United States	2,236.814	1,813.404
Mexico	1,743.282	1,413.294
Total Conservation*	3,980.096	3,226.698
*Values may not sum due to round-off error
Ownership and Releases @ 2400 hours on 06/14/2025
Country	Million Cubic Meters	Thousand Acre-Feet	Requested Releases CMS	Requested Releases CFS
United States	653.753	530.003	15.0	530.0
Mexico	147.244	119.372	3.00	106.0
Total Storage	800.997	649.375	18.0	636.0
% of US Capacity @ Normal Cons.	29.23%
Inflows, Releases, and Losses for week of 06/08-06/14
U.S. Inflows (cms)	38.8	Total Inflows	57.8
U.S. Releases (cms)	15.3	Total Releases	18.4
U.S. Losses (cms)	5.40	Total Losses	6.59
Falcon Dam
Water Surface Elevation		feet	meters
Top of Normal Conservation		301.20	91.805
	@06/14/2025	255.05	77.740
Conservation Storages	Normal Conservation
Country	Million Cubic Meters	Thousand Acre-Feet
United States	1,927.193	1,562.392
Mexico	1,361.533	1,103.806
Total Conservation*	3,288.726	2,666.198
*Values may not sum due to round-off error
Ownership and Releases @ 2400 hours on 06/14/2025
Country	Million Cubic Meters	Thousand Acre-Feet	Requested Releases CMS	Requested Releases CFS
United States	294.682	238.901	7.50	265.0
Mexico	86.209	69.891	2.00	70.6
Total Storage	380.891	308.792	9.50	336.0
*Values may not sum due to round-off error
% of US Capacity @ Normal Cons.	15.29%
Inflows, Releases, and Losses for week of 06/08-06/14
U.S. Inflows (cms)	45.3	Total Inflows	79.2
U.S. Releases (cms)	20.8	Total Releases	25.6
U.S. Losses (cms)	5.06	Total Losses	6.41
Note: All dam measurements based on elevation above mean sea level.
Rio Grande Flow and Reservoir Storage Conditions (Updated daily Monday through Friday)
1996-Present Amistad-Falcon Ownership Trends
For further information concerning the content of this page contact:
U.S. Section - Water Accounting Division
e-mail: WA-Data@ibwc.gov
Last Updated 06/18/2025