WSP09693

• File Number: 8220.106
• Description: Animas-La Plata
• State: CO
• Basin: San Juan/Dolores
• Water Division: 7
• Date: 7/1/2000
• Title: Final Supplemental Environmental Impact Statement - Volume 1
• Water Supply Pro - Doc Type: EIS

TABLE OF CONTENTS (continued)

Chanter Pal!"e No.

3.13.3.1.1 State of Colorado ......,.,..... ............3-217
3.13.3,1.2 La Plata County .......,................... 3-218
3.13.3.1.3 West Durango Land Use Planning District. . . .. . 3-218
3.13.3.1.4 City of Durango ...............,........... 3-219
3.13.3.1.5 State of New Mexico. . . . . . . . . . . . . . . . . . . . . . . 3-220
3.13.3.1.6 San Juan County ..........................3-221
3.13.3.1.7 CityofFannington........................ 3-221
3.13.3.2 Non-Binding Water End Uses and Conveyance Systems ...... 3-222
3.13.3.2.1 Florida Road Land Use Planning District '" . . . . 3-222
3.13.3.2.2 Florida Mesa Land Use Planning District. . . . . . . 3-222
3.13.4 Environmental Consequences and Mitigation ....................... 3-223
3.13.4.1 RefinedAltemative4.........,.,............,......... 3-223
3.13.4,1.1 Structural Component...................... 3-223
3.13.4.1.2 Non-Binding End Uses and Water Conveyance .. 3-224
3.13.4.2 Refmed Alternative 6 ........ . . . . .. . . . . . . . . . . , .. . . . . .. . 3-225
3.13.4.2.1 Structural Components .......,...,......... 3-225
3.13.4.2.2 Non-Binding Water End Uses and Conveyance

Systems ..............................." 3-225
3.13.4.3 NoActionAlternative .............,...................3-226
3.14 HAZARDOUS MATERIALS. ' . . . . . . . , . . . . . . . , . . , . . . . . . . . . . . . . . . . . . . . . 3-226

3.14.1 Introduction........,....,........................,.....,...., 3-226
3.14.2 MethodOlogy................................................. 3-226
3,14.2.1 Evaluation Methodology ..........,.......,............3-226
3.14.2.2 Significance Criteria. .. . . . .. . .. . .. . . .. . . . . . . . .. . .. . .. . . 3-227
3.14.3 Affected Environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . , . . . . . . . . . 3-227
3.14.3.1 Structural Components of Refined Alternative 4 . . . . . . . . . . . , . 3-227
3.14.3.1.1 Durango Pumping Plant and Ridges Basin
Inlet Conduit ...............,............. 3-227
3.14.3.1.2 Ridges Basin Dam and Reservoir .:........... 3-228
3.14.3.1.3 Navajo Nation Municipal Pipeline .......,....3-228
3.14.3.2 Structural Components of Refined Alternative 6 . . . . . , . . . . , . . 3-228
3.14.3.2.1 Increased Capacity of Lemon Reservoir ........ 3-228
3.14.3.2.2 Navajo Nation Municipal Pipeline ............ 3-228
3.14.3.3 Non-Binding End Uses and Conveyance Systems. . . . . . . . . . . . 3-228
3.14.4 Environmental Consequences and Mitigation ....,.............,..,. 3-229
3.14.4.1 Refined Alternative 4 , , . . . . . . . . . . . . . . . . . . . . . .. . . .. . . . . . 3-229
3.14.4.1.1 Structural Component Impacts ..........,.... 3-229
3.14.4.1.2 Non-Binding Water End Use Impacts. . . . . . . . , . 3-232
3.14.4.2 Refmed Alternative 6 . . .. . .. . . , . . . . . . . . . . . . . . . . . . . , . . . . 3-232
3.14.4.2.1 Structural Components ..................... 3-232
3.14.4.2.2 Non-Binding Water End Uses and Conveyance .. 3-233
3.14.4.3 No Action Alternative ...........,....,................ 3-233
3.15 TRANSPORTATION. . . . . . . . . . , . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . 3-233
3.15.1 Introduction.............................,.................... 3-233
3.15.2 Methodology...,...................,......................... 3-233
3.15.2.1 Construction IlIIpacts Evaluation. . . . . . . . , . . . . . . . . . . . . . . . . 3-234
3.15.2.2 Recreation Operation and Maintenance Impacts Evaluation, . . . 3-234
3.15.2.3 Significance Criteria. . . . . . . . . . . . . . . . . . . . .. . .. .. . . . . . . .. 3-236
3.15.3 Affected Environment. . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-236

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