WSPC03885

• File Number: 8200.700
• Description: Colorado River Basin General Publications - Augmentation-Weather Modification
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 2/1/1993
• Author: DOI-BOR
• Title: Validation of Precipitation Management by Seeding Winter Orographic Clouds in the Colorado River Basin - Draft
• Water Supply Pro - Doc Type: Report/Study

003177

APPENDIXES-Continued

Appendix

6, Discussion and conclusions
7, References . . . . . . . . .'

B Comparisons of snowfall and supercooled liqwd water between the Grand Mesa
of Colorado and the Wasatch Plateau of Utah . . . . , . , . . . .
1, General considerations ...............,....,.
2, Comparison of daily snowfall frequency and seasonal snowpack
3, Comparison ofSLW observations
4, SLW flux estimates . .
4.1 Tushar Mountains. . .
4.2 Wasatch Plateau. . , .
4.3 Grand Mesa . . . . , .
5. Summary and conclusions .
6, References . . . . , , . . .

C Preliminary estimates of increased runoff from additional high elevation snowfall
in the Upper Colorado River Basin. . . .
1, Introduction . . . , . , . . . . . . . . . . . . .
2, Observations and evaluation procedures , . . .
3. Results and discussion , . . . . . . . . . . . . .
3.1 Seasonal runoffrelationships . . . . . . . .
3.2 Snow course and pillow representativeness .
3.3 Similarities and differences among drainages
3.4 Annual runoff relationships . . . . . . . . . .
4, Runoff predictions from additional watersheds .
4.1 Predictions from two small Uinta mountain watersheds . . . .
4.2 Predictions from two small Colorado experimental watersheds.
5, Summary . . . . . . . . . . . . . . - . .
6, References . . . , . . . . . . . . . . . .

D Environmental compliance scope of study .
1. Introduction . . . . . . . . . . . . . , . . . . .
1.1 Purpose and need for environmental compliance and monitoring
1.2 Scope ofthis plan of study.
1.3 Assumptions . . . . . . . . .
2. NEPA compliance . . . . . . . .
2.1 Background .........
2.2 Decisionmaking and timing .
2.3 Limitations on actions . . . .
2.4 Levels of NEP A compliance .
2.4.1 Categorical exclusion . .
2.4.2 Environmental assessment.
2.4.3 Environmental Impact Statement
2.5 Fonnat and content . . . . . . . . . .
2.5.1 Categorical exclusion . . . . . . .
2.5.2 Environmental assessment. . . .
2.5.3 Environmental Impact Statement
2.6 Recommended compliance. . . . . . .
3, Key elements of the NEPA process . . , .
3.1 Detennination oflead agency and cooperating agencies.
3.2 Fonnation of an interdisciplinary team ......,..
3.2.1 Proposed interdisciplinary team and areas of responsibility
3.3 Public involvement ......
3.3.1 Objectives. . . , . . . . .
3.3.2 Public involvement plans.

LX

Page

71
72

73
74
74
76
78
78
80
82
86
88

90
91
91
93
. 93
95
100
101
102
102
102
103
104
105
106
106
106
106
107
107
107
107
108
108
108
109
109
109
109
110
110
111
111
111
111
113
113
113