RIO GRANDE FLOW / RESERVOIR CONDITIONS        
                     
The Rio Grande Flow Conditions are updated daily, Monday thru Friday at        
approximately 9:35 am Mountain Time/10:35 am Central Time.        
                     
                     
The following data are Provisional and are subject to revision.  Stage and flow determinations are made      
for river conditions at approximately 7:00 am to 8:00 am Standard Time unless otherwise indicated.      
                     
  DATE STAGE DISCHARGE RAINFALL            
    METERS             CMS     MM            
RG BELOW CABALLO DAM 5-Aug-21   32.11              
RG AT EL PASO 5-Aug-21 1.398 21.35              
RG BELOW AMERICAN DAM 5-Aug-21 1.722 4.24              
AMERICAN CANAL 5-Aug-21 1.542 16.86              
RG AT FORT QUITMAN 5-Aug-21 1.990 0.14              
RG ABOVE RIO CONCHOS 5-Aug-21 1.655 0.15              
RG BELOW RIO CONCHOS 5-Aug-21 0.632 2.36              
RG AT JOHNSON RANCH 5-Aug-21 1.323 4.77 0            
RG AT FOSTER RANCH 5-Aug-21 0.525 11.61              
PECOS NEAR LANGTRY 5-Aug-21 0.494 2.47              
DEVILS AT PAFFORD 5-Aug-21 0.714 4.74              
AMISTAD DAM                    
RG AT DEL RIO 5-Aug-21 0.449 11.33 4            
RG AT EAGLE PASS 5-Aug-21 0.898 32.50 5            
RG NEAR EL INDIO 5-Aug-21 1.899 35.27 7            
RG AT COLOMBIA                5-Aug-21 N/R 0.00              
RG AT LAREDO 5-Aug-21 0.454 28.96              
FALCON DAM       0            
RG AT RIO GRANDE CTY 5-Aug-21 8.095 40.32              
RG BL ANZALDUAS DAM 5-Aug-21 23.930 16.90              
RG AT SAN BENITO 5-Aug-21 10.664 9.10              
RG AT BROWNSVILLE 5-Aug-21 1.464 12.30              
                     
ANZALDUAS SALINITY 5-Aug-21 31.380 1470 PPM            
                     
STORED WATER IN LARGE RESERVOIRS OF THE RIO GRANDE BASIN        
(Capacities and Storages in Million M3, Elevations in Meters)        
         
Reservoir                     Date Hour Normal Flood Current     24-hr        
    Cons. Control Elev.  Storage Storage        
    Capacity Capacity   (% Cons.) Change        
                     
ELEPHANT BUTTE                 Criteria Checks
5-Aug-21 0:00 2496 2496 N/A N/A          
                1 0
CABALLO                    
5-Aug-21 0:00 280 403 1260.200 19 0        
          (7%)       1 0
AMISTAD                    
5-Aug-21 0:00 4040 6181 326.070 1389 1        
Requested 6:00 U.S. 15.00 CMS (34%)       0 0
Release   MEX. 3.00 CMS            
FALCON                    
5-Aug-21 0:00 3265 3883 79.780 616 0        
Requested 6:00 U.S. 10.00 CMS (19%)       0 1
Release   MEX. 0.00 CMS            
                     
STORED WATER IN LARGE RESERVOIRS OF THE COLORADO BASIN        
(Capacities and Storages in 1000 Acre-Feet, Elevations in Feet)        
Reservoir                     Date Hour Total Capacity Current     24-hr        
        Elev.  Storage Storage        
            Change        
LAKE POWELL                    
5-Aug-21 0:00 24,322 3553.33 7,826 -10        
LAKE MEAD                    
5-Aug-21 0:00 26,120 1067.81 9,026 -7        
                     
                     
                     
MEXICAN RESERVOIRS      
(Storages in Million M3, Elevations in Meters, Releases in CMS)      
                     
Reservoir                     Date Normal Flood   Current      Spill Percent        
  Cons. Control Elev.  Storage or of        
  Capacity Capacity     Release Cons.        
    RIO CONCHOS BASIN                    
SAN GABRIEL                    
8/4/21 8:00 245 377 0.000 37.067 0.000 15%        
BOQUILLA                    
8/4/21 8:00 2894 3278 0.000 783.465 7.300 27%        
F.I. MADERO                    
8/4/21 8:00 355 547 0.000 139.273 0.000 39%        
PICO DEL AGUILA                    
8/4/21 8:00 48 89 0.000 48.021 0.000 100%        
CHIHUAHUA                    
8/4/21 8:00 23 36 0.000 11.227 0.090 48%        
EL REJON                    
8/4/21 8:00 7 8 0.000 3.224 0.000 49%        
LUIS L. LEON                    
8/4/21 8:00 292 832 0.000 97.337 3.020 33%        
    RIO SAN DIEGO BASIN                    
CENTENARIO                    
8/4/21 8:00 25 26 0.000 18.101 0.000 74%        
SAN MIGUEL                    
8/4/21 8:00 21 22 0.000 16.810 0.000 79%        
    RIO SAN RODRIGO BASIN                  
LA FRAGUA                    
8/4/21 8:00 47 85 0.000 14.846 0.000 31%        
    RIO SALADO BASIN                    
VENUSTIANO CARRANZA                    
8/4/21 8:00 874 1322 0.000 151.582 0.000 17%        
                     
                     
    RIO ALAMO BASIN                    
LAS BLANCAS                    
8/4/21 8:00 84 134 0.000 31.307 0.300 37%        
    RIO SAN JUAN BASIN                    
EL CUCHILLO                    
8/4/21 8:00 1123 1784 0.000 628.144 5.400 56%        
MARTE GOMEZ                    
8/4/21 8:00 782 2209 0.000 727.768 10.000 93%        
                     
  Contributions from Rio Alamo and Rio San Juan to the Rio Grande are allotted 100% to Mexico per 1944 Treaty    
  article 4 (a)                    
                     
** Usable storage is an estimate of waters in storage which could be released through existing outlet works.