WSP05331

• File Number: 8149.700
• Description: Miscellaneous Small Projects and Project Studies - Homestake Project
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 4/25/1974
• Author: Black and Veatch
• Title: Environmental Impact Report - Homestake Water Collection System Extension for Aurora and Colorado Springs with related documents Volume II
• Water Supply Pro - Doc Type: EIS

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TABLE OF CONTENTS

VOLUME I

I.

SUMMARY

II.

DESCRIPTION OF HOMESTAKE PROJECT
A. Existing Project Facilities . .
1. Completed Phase 1 Collection System
2. Completed Upstream Storage System
3. Completed Delivery System . .
4. Completed Downstream Storage
B. Proposed Alternative Extensions of
Homestake Collection System
1. Plan A - Tunnel and Pipelines
2. Plan B - Tunnels and Pipeline
3. Plan C - Tunnels and Pipeline
4. Plan D - Tunnel, Pumping, and Pipeline
5. Plan E - Tunnel, Reservoir, Pumping, and Pipeline
6. Plan F - Tunnels, Pipeline, Reservoir, and Pumping
7. Plan F-l - Tunnels, Pipelines, Reservoir, and Pumping
8. Plan F~2 - Tunnels, Pipelines, Reservoir, and Pumping
9. Plan G - Wolcott Reservoir, Tunnel, and Pumping
10. Eagle-Arkansas Division
11. Selected Plan . .

III.

DESCRIPTION OF CONSTRUCTION PROCEDURES
A. General Procedures . .
1. Construction Access
2. Site Clearing
3. Blasting ..
4. Concrete Aggregates
5. Restoration of Scarred Areas
6. Waste Disposal
B. Tunnel Construction
1. Methods ..
2. Disposal of Tunnel Muck
C. Road Construction
D. Pipeline Construction
E. Construction of Diversion Structures
F. Dam Construction on Homestake Creek
G. Diversion Works Construction on Eagle River
H. Power Line Construction
I. Pumping Station Construction
J. Construction Process

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IV.

DESCRIPTION OF EXISTING
ENVIRONMENTAL CONDITIONS 29
A. Existing Environment Without Proposal 29
1. Climate .. . . 29
2. Topography and Geological Resources 30
3. Mineral Resources 31
4. Water 32
5. Ecosystems.. 33
a. Spruce-Fir Ecosystem 35
b. Lodgepole Pine Ecosystem 35
c. Aspen Ecosystem 35
d. Douglas Fir Ecosystem 36
e. Riparian Ecosystem 36
f. Meadow Ecosystem 36
g. Mountain Grassland Ecosystem 36
h. Shrub Ecosystem 36
i. Marsh Ecosystem 36
6. Flora 37
7. Fauna 39
a. Big Game 39
b. Small Mammals and Birds 40
c. Endangered Species 40
d. Fish 40
8. land Use, Aesthetics, and Human Interest 42
9. Physical and Socio-Economic Patterns 43
a. In the Vicinity of the Project Area 43
b. In the Region . . . 45
i. Rapid Urbanization 45
ii. Population Imbalance 45
iii. Economic Decline in Rural Areas 46
iv. Disproportionate Commitment of Resources. 46
B. PROBABLE FUTURE ENVIRONMENT
WITHOUT PROPOSAL .. 47
1. In the Vicinity of the Project Area 47
2. In the Region . . . . 48

V.

ENVIRONMENTAL IMPACTS 49
A. Evaluation System 49
1. Quantity Factors 49
2. Quality Factors . 50
3. Human Influence Factors 50
B. I n The Project Area 51
1. Open Space 51
a. Quantity Factors 51
b. Quality Factors 53
c. Human Influence Factors 53