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 04/23/2016
63.6% of U.S. Total Conservation Capacity
36.8% of Mex. Total Conservation Capacity
Amistad Dam
Water Surface Elevation Feet Meters
Top of Normal Conservation 1,117.00 340.462
  @04/23/2016 1,092.47 332.985
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 04/23/2016
Country Million
Cubic Meters
Thousand
Acre-Feet
Requested
Releases
CMS
Requested
Releases
CFS
United States 1,691 1,371 20.0 706.0
Mexico 710 576 3.00 106.0
Total Storage 2,401 1,947 23.0 812.0
% of US Capacity @ Normal Cons. 74.5%
Inflows, Releases, and Losses for week of 04/17-04/23
U.S. Inflows 34.4 Total Inflows 47.5
U.S. Releases 21.5 Total Releases 25.5
U.S. Losses 7.11 Total Losses 10.1
Falcon Dam
Water Surface Elevation feet meters
Top of Normal Conservation 301.20 91.805
  @04/23/2016 278.30 84.825
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 04/23/2016
Country Million
Cubic Meters
Thousand
Acre-Feet
Requested
Releases
CMS
Requested
Releases
CFS
United States 971 787 70.0 2470.0
Mexico 438 355 72.0 2540.0
Total Storage 1,409 1,142 142.0 5010.0
*Values may not sum due to round-off error
% of US Capacity @ Normal Cons. 50.8%
Inflows, Releases, and Losses for week of 04/17-04/23
U.S. Inflows 40.0 Total Inflows 62.0
U.S. Releases 60.4 Total Releases 165.0
U.S. Losses 7.53 Total Losses 11.1
Note: All dam measurements based on elevation above mean sea level.
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: william.finn@ibwc.gov
(915) 832-4789
Last Updated 04/29/2016