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 04/12/2014
44.6% of U.S. Total Conservation Capacity
39.7% of Mex. Total Conservation Capacity
Amistad Dam
Water Surface Elevation Feet Meters
Top of Normal Conservation 1,117.00 340.462
  @04/12/2014 1,080.68 329.390
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 04/12/2014
Country Million
Cubic Meters
Thousand
Acre-Feet
Requested
Releases
CMS
Requested
Releases
CFS
United States 1,106 897 20.0 706.0
Mexico 711 576 150.0 5300.0
Total Storage 1,817 1,473 170.0 6010.0
% of US Capacity @ Normal Cons. 48.7%
Inflows, Releases, and Losses for week of 04/06-04/12
U.S. Inflows 23.6 Total Inflows 31.4
U.S. Releases 22.4 Total Releases 93.6
U.S. Losses 7.95 Total Losses 13.2
Falcon Dam
Water Surface Elevation feet meters
Top of Normal Conservation 301.20 91.805
  @04/12/2014 276.23 84.195
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 04/12/2014
Country Million
Cubic Meters
Thousand
Acre-Feet
Requested
Releases
CMS
Requested
Releases
CFS
United States 759 615 60.0 2120.0
Mexico 529 429 50.0 1770.0
Total Storage 1,287 1,043 110.0 3890.0
*Values may not sum due to round-off error
% of US Capacity @ Normal Cons. 39.7%
Inflows, Releases, and Losses for week of 04/06-04/12
U.S. Inflows 11.8 Total Inflows 13.2
U.S. Releases 31.5 Total Releases 53.2
U.S. Losses 5.72 Total Losses 9.72
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 04/23/2014