C150307 Final Supplimental Impact Statement

• Contract/PO #: C150307
• Contractor Name: Animas La Plata
• Contract Type: Loan
• Loan Projects - Doc Type: Report

TABLE OF CONTENTS(continued)
Chapter Page No.
3.7 SPECIAL STATUS SPECIES 3-109
3.7.1 Introduction 3-109
3.7.2 Evaluation Methodology 3-109
3.7.2.1 Methodology 3-110
3.7.2.2 Significance Criteria 3-110
3.7.3 Affected Environment 3-111
3.7.3.1 Federally Listed Plants 3-111
3.7.3.1.1 Mancos Milk-vetch 3-111
3.7.3.1.2 Knowlton's Cactus 3-112
3.7.3.1.3 Mesa Verde Cactus 3-112
3.7.3.1.4 Sleeping Ute Milk-vetch 3-112
3.7.3.2 Federally Listed Animals 3-112
3.7.3.2.1 Terrestrial Wildlife 3-112
_ 3.7.3.2.2 Fish 3-114
3.7.4 Environmental Consequences and Mitigation 3-116
3.7.4.1 Refined Alternative 4 3-116
3.7.4.2 Refined AIternative 6 3-120
3.8 GEOLOGY AND SOILS 3-122
3.8.1 Introduction 3-122
3.8.2 Evaluation Methodology 3-122
3.8.2.1 Geology 3-122
3.8.2.1.1 Methodology 3-122
3.8.2.1.2 Significance Criteria 3-123
3.8.2.2 Soils 3-123
3.8.2.2.1 Methodology 3-123
3.8.2.2.2 Significance Criteria 3-124
3.8.3 Affected Environment 3-124
3.8.3.1 Geology 3-124
3.8.3.1.1 Structural Components 3-124
3.8.3.2 Soils 3-129
3.8.3.2.1 Structural Components 3-129
3.8.3.2.2 Non-Structural Component 3-130
3.8.3.2.3 Non-Binding M&I Water End Uses and Distribution
Systems 3-132
3.8.4 Environmental Consequences and Mitigation 3-133
3.8.4.1 Refined Alternative 4 3-133
3.8.4.1.1 Geology 3-133
3.8.4.1.2 Soils 3-135
3.8.4.2 Refined Alternative 6 3-136
3.8.4.2.1 Geology 3-136
3.8.4.2.2 Soils 3-137
3.8.4.3 No Action Alternative 3-138
3.9 CULTURAL AND PALEONTOLOGIC RESOURCES 3-139
3.9.1 Introduction 3-139
3.9.2 Evaluation Methodology 3-139
3.9.2.1 Cultural Resources 3-139
3.9.2.1.1 Methodology 3-139
3.9.2.1.2 Significance Criteria 3-140
3.9.2.2 Paleontologic Resources 3-141
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