WSP03326

• File Number: 8583
• Description: Rio Grande Decision Support System
• State: CO
• Basin: Rio Grande
• Water Division: 3
• Date: 3/9/1998
• Title: 1997 Calendar Year Report to the Rio Grande Compact Commission
• Water Supply Pro - Doc Type: Report/Study

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TABLE OF CONTENTS

INTRODUCTION ..................................................... 1

SAN LUIS VALLEY PROJECT, COLORADO. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2
Conejos Division, Platoro Reservoir ................................. 2
Closed Basin Division ............................................ 2
Closed Basin - Operations and Maintenance .......................... 2

Operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2
Maintenance ..... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3

Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4
Rio Grande Water Conservation District .............................. 5

San Luis Lake .................................................. 5
Water Deliveries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 5
Stockman's Water Company Development Proposal .................... 5

SAN JUAN-CHAMA PROJECT, COLORADO-NEW MEXICO . . . . . . . . . . . . . . . . . .. 7
San Juan-Chama Diversion Dams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7
Heron Dam and Reservoir Operation ................................ 7
Heron Resource Management Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7
Pojoaque Tributary Unit - Nambe Falls Dam and Reservoir ............... 8
Sediment Deposition in U.S. Army Corps of Engineers' Reservoirs ......... 8
M&I Water Use National Environmental Policy Act Compliance ............ 9

MIDDLE RIO GRANDE PROJECT, NEW MEXiCO.......................... 10
EI Vado Dam and Reservoir Operations ............................. 10
River Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11
Endangered Species. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12
Rio Grande Silvery Minnow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12
Southwestern Willow Flycatcher. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 14
Programmatic Water Operations and River Maintenance Assessment . . . . .. 14
Cooperative Program with the State of New Mexico . . . . . . . . . . . . . . . . . . .. 15
Low Flow Conveyance Channel Investigations .... . . . . . . . . . . . . . . . . . . .. 16

RIO GRANDE PROJECT, NEW MEXICO - TEXAS. . . . . . . . . . . . . . . . . . . . . . . . .. 17
Water Supply Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 17
Project Irrigation and Drainage Systems and Title Transfer .............. 18
Rio Grande Project Adjudications .................................. 19
Elephant Butte Reservoir and Powerplant . . . . . . . . . . . . . . . . . . . . . . . . . . .. 19
Caballo Dam and Reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20
Elephant Butte Reservoir Flood Study . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 20
Data Automation and Instrumentation and Flow Monitoring System. . . . . . .. 21
Elephant Butte and Caballo Reservoirs Resource Management Plan. . . . . .. 21