WESTERN BOUNDARY WATER BULLETIN - 2001 -- INTERNATIONAL BOUNDARY AND WATER COMMISSION
CONTENTS
***Foreword and Acknowledgments . . . . . . . . . . . . 4
***General Hydrologic Conditions for 2001 . . . . . . . . . . . 6
***Map of Western Boundary - Douglas, Arizona to Pacific Ocean . . . . . . . . 44
I - COLORADO RIVER - IMPERIAL DAM TO GULF OF CALIFORNIA
***Map of Lower Colorado River, United States and Mexico . . . . . . Following Page 84
QUANTITY OF WATER
Stream-Flow and Stage Records
*** Tributary - Reservation Main Drain No. 4 (California Drain) . . . . . . 8
*** Yuma Main Canal Wasteway to Colorado River at Yuma, Arizona . . . . 9
*** Colorado River below Yuma Main Canal Wasteway at Yuma, Arizona - Discharges . . . . 10
*** below Yuma Main Canal Wasteway at Yuma, Arizona - Stages . . . . . 11
*** Tributary - Yuma Mesa Outlet Drain to Colorado River near Yuma, Arizona . . . . 12
*** Drain No. 8-B (Araz Drain) . . . . . . . . . . 13
*** Pilot Knob Power Plant and Wasteway near Pilot Knob, California . . . . 14
*** Colorado River at Northerly International Boundary - Discharges . . . . . . 15
*** at Northerly International Boundary - Stages . . . . . . . 16
*** Tributary - Cooper Wasteway (Valley Division, Yuma Project) . . . . . . 17
*** Colorado River immediately above Morelos Dam - Stages . . . . . . . . 18
***Diversions from the Colorado River - Intake Canal at Morelos Diversion Structure - Discharges . . 19
*** at Morelos Diversion Structure - Stages . . . 20
*** Colorado River immediately below Morelos Dam - Stages . . . . . . . . 21
*** Tributary - Wellton-Mohawk Drainage Water Discharged to Colorado River below Morelos Dam . . 22
*** Tributary - Eleven Mile Wasteway (Valley Division, Yuma Project) . . . . . . 23
*** Colorado River at Eleven Mile Gage - Stages . . . . . . . . . . 24
*** Tributary - Twenty-one Mile Wasteway (Valley Division, Yuma Project) . . . . . 25
*** East Main Canal Wasteway (Valley Division, Yuma Project) . . . . . . . . 26
*** Yuma Main Drain (Valley Division, Yuma Project) . . . . . . . . . 27
*** West Main Canal Wasteway (Valley Division, Yuma Project) . . . . . . . . 28
*** 242 Well Field near San Luis, Arizona . . . . . . . . . . . 29
*** Total Flows Crossing International Boundary into Mexico near San Luis, Sonora . . . . 30
*** Colorado River at Southerly International Boundary - Discharges . . . . . . 31
*** at Southerly International Boundary - Stages . . . . . . . 32
*** Wellton-Mohawk Bypass Drain at Southerly International Boundary . . . . . . 33
*** Tributary - Wasteway to Colorado River at Kilometer 27 in Mexico . . . . . . 34
*** Tributary - Wasteway to Colorado River at Kilometer 38 in Mexico . . . . . . 35
***Stored Water in Large Reservoirs of the Colorado River . . . . . . . . . 36
QUALITY OF WATER
***Suspended Silt in the Colorado River and Intake Canal at Morelos Diversion Structure . . . . 37
***Chemical Analyses of Water Samples . . . . . . . . . . . . 38
***Specific Conductance of Water Samples . . . . . . . . . . . 39
***Specific Conductance of Water Samples (cont) . . . . . . . . . . 40
CLIMATOLOGICAL DATA AND IRRIGATED AREAS
***Rainfall on the Colorado River Watershed . . . . . . . . . . . 41
***Location of Rainfall Stations on the Colorado River . . . . . . . . . 42
***Evaporation in the Colorado River Basin . . . . . . . . . . . 43
***Temperature in the Colorado River Basin . . . . . . . . . . . 46
***Temperature in the Colorado River Basin (cont) . . . . . . . . . . 47
***Irrigated Areas along the Colorado River below Imperial Dam . . . . . . . . 48
II - ALAMO AND NEW RIVERS
QUANTITY OF WATER
Stream-Flow and Stage Records
*** Alamo River at International Boundary . . . . . . . . . . . 49
*** New River at International Boundary . . . . . . . . . . . 50
*** Tributary - Wastes from Mexicali Potable Water Plant to New River in Mexico . . . . 51
*** Waste Waters from Mexican System of Canals Entering the United States . . . 52
***Salton Sea - Elevations of Water Surface . . . . . . . . . . . 53
QUALITY OF WATER
***Chemical Analyses of Water Samples . . . . . . . . . . . . 54
***Chemical Analyses of Water Samples (cont) . . . . . . . . . . . 55
***Chemical Analyses of Water Samples (cont) . . . . . . . . . . . 56
III - TIJUANA RIVER
***Map of Tijuana River Drainage Basin . . . . . . . . . . . . 57
QUANTITY OF WATER
Stream-Flow Records
*** Cottonwood Creek above Morena Dam, California . . . . . . . . . 58
*** below Morena Dam, California . . . . . . . . . 59
*** above Barrett Dam, California . . . . . . . . . 60
***Diversions from Cottonwood Creek - Dulzura Conduit below Barrett Dam, California . . . . 61
*** Cottonwood Creek below Barrett Dam, California . . . . . . . . . 62
*** above Tecate Creek near Dulzura, California . . . . . . . 63
*** Tributary - Campo Creek near Campo, California . . . . . . . . . 64
*** Inflows to Rodriguez Reservoir, Baja California . . . . . . . . . 65
***Diversions from Rodriguez Reservoir, Baja California . . . . . . . . . 66
*** Tijuana River at International Boundary . . . . . . . . . . 67
***Stored Water in Reservoirs, Tijuana River Basin . . . . . . . . . . 68
CLIMATOLOGICAL DATA AND DRAINAGE BASIN AND IRRIGATED AREAS
***Rainfall on the Tijuana River Watershed . . . . . . . . . . . 69
***Rainfall on the Tijuana River Watershed (cont) . . . . . . . . . . 70
***Location of Rainfall Stations on the Tijuana River Watershed . . . . . . . . 71
***Evaporation in the Tijuana River Basin . . . . . . . . . . . 72
***Temperature in the Tijuana River Basin . . . . . . . . . . . 72
***Drainage Areas above Gaging Stations and Irrigated Areas along Tijuana River and Tributaries . . 74
IV - WHITEWATER DRAW, SAN PEDRO, AND SANTA CRUZ RIVERS
***Map of Western Boundary - Santa Cruz River, San Pedro River, and Whitewater Draw Basins . . . 75
QUANTITY OF WATER
Stream-Flow Records
*** Whitewater Draw near Douglas, Arizona . . . . . . . . . . . 76
*** Sewage Influent, Douglas, Arizona International Treatment Plant . . . . . . 77
*** San Pedro River at Palominas, Arizona . . . . . . . . . . . 78
*** Santa Cruz River near Lochiel, Arizona . . . . . . . . . . . 79
*** near Nogales, Arizona . . . . . . . . . . . 80
*** Sewage Influent, Nogales International Treatment Plant . . . . . . . . 81
CLIMATOLOGICAL DATA
***Rainfall and Location of Rainfall Stations on the Santa Cruz River Watershed . . . . . 82
***Temperature in the Santa Cruz River Basin . . . . . . . . . . . 83
***Drainage Areas above Gaging Stations and Irrigated Areas along Santa Cruz River, San Pedro River,
and Whitewater Draw . . . . . . . . . . . . . . 84