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 06/16/2018
50.8% of U.S. Total Conservation Capacity
19.9% of Mex. Total Conservation Capacity
Amistad Dam
Water Surface Elevation Feet Meters
Top of Normal Conservation 1,117.00 340.462
  @06/16/2018 1,085.71 330.925
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 06/16/2018
Country Million
Cubic Meters
Thousand
Acre-Feet
Requested
Releases
CMS
Requested
Releases
CFS
United States 1,577 1,278 80.0 2830.0
Mexico 474 384 6.00 212.0
Total Storage 2,051 1,663 86.0 3040.0
% of US Capacity @ Normal Cons. 69.5%
Inflows, Releases, and Losses for week of 06/10-06/16
U.S. Inflows 18.0 Total Inflows 24.5
U.S. Releases 83.9 Total Releases 90.7
U.S. Losses 16.8 Total Losses 21.8
Falcon Dam
Water Surface Elevation feet meters
Top of Normal Conservation 301.20 91.805
  @06/16/2018 263.78 80.400
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 06/16/2018
Country Million
Cubic Meters
Thousand
Acre-Feet
Requested
Releases
CMS
Requested
Releases
CFS
United States 547 443 60.0 2120.0
Mexico 148 120 23.0 812.0
Total Storage 694 563 83.0 2930.0
*Values may not sum due to round-off error
% of US Capacity @ Normal Cons. 28.6%
Inflows, Releases, and Losses for week of 06/10-06/16
U.S. Inflows 70.4 Total Inflows 68.3
U.S. Releases 81.7 Total Releases 112.0
U.S. Losses 10.3 Total Losses 13.2
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 06/21/2018