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<br />TABLE OF CONTENTS (continued)
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<br />Cbaoter
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<br />Pal!'e No.
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<br />3.15,3.1 Federal Highways .,...,...............................3-236
<br />3.15.3.2 State Routes ,........................,........,...,..3-236
<br />3.15.3.3 County Roads ...................................,...,3-237
<br />3.15.3.3.1 County Road 125 . . . .. . .. . . ' . . . .. . .. . . . . . .. 3-237
<br />3.15.3.3.2 County Road 141 ........ . . . .. . . . . .. . . . . . . . 3-237
<br />3.15.3.3.3 County Road 211 ..................,....... 3-237
<br />3.15.3.3.4 County Road 212 .."...,.............. . ... 3-237
<br />3.15.3.3.5 County Road 213 .......................... 3-238
<br />3.15.4 Environmental Consequences and Mitigation ....................... 3-238
<br />3.15.4.1 Refined Alternative 4 .................................. 3-238
<br />3.15.4.2 Refined Alternative 6 .. . . . . . . . . . . .. . . . . . . .. . . . .. , . . . . , . 3-244
<br />3.15.4.2.1 Structural Components ...,....,...,........ 3-244
<br />3.15.4.3 No Action Alternative .,........,...,.................. 3-245
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<br />3.16 AIR. QUALITY .....................,............................... 3-246
<br />3.16.1 Introduction,..................................,.............. 3-246
<br />3.16,2 Methodology....,.......,...................."...,.......... 3-246
<br />3.16.2.1 EvaluationMethodology .......,.......,............... 3-246
<br />3.16.2.2 Significance Criteria.. .... .....,.. ............. ........ 3-246
<br />3.16.3 MfectedEnvironment.......................................... 3-247
<br />3.16.3.1 Climate..........,......................,........... 3-247
<br />3.16.3.2 Local Ambient Air Quality .................,...,....,... 3-247
<br />3.16.3.3 Regional Ambient Air Quality. . . . . . . . . . . . . . . . . . . . , . . . . . . 3-248
<br />3.16.4 Environmental Consequences and Mitigation..............,........ 3-249
<br />3.16.4.1 RefmedAlternative4............,.............,....... 3-249
<br />3.16.4.1.1 Structural Component Impacts ...,........... 3-249
<br />3.16.4.1.2 Non-Binding Water End Use and Conveyance
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<br />hnpacts . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . 3-251
<br />3.16.4.2 Refined Alternative 6 . .. . . . . . . . .. .. .. .. . . .. . . . . . .. .. . .. 3-253
<br />3.16.4.2.1 Structural Component Impacts ............... 3-253
<br />3.16.4.2.2 Non-Structural Component hnpacts .........., 3-254
<br />3.16.4.2.3 Non-Binding End Use and Conveyance hnpacts . . 3-255
<br />3.16.4.3 No Action Alternative ........................"....... 3-255
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<br />3.17 NOISE...........,.................,...,.................,........ 3-255
<br />3.17.1 Introduction,...,..............,...........................,.. 3-255
<br />3.17.2 Methodology.....................,........................... 3-256
<br />3.17.2.1 EvaluationMethodology ...,...................,.......3-256
<br />3.17.2.2 Significance Criteria, . . .. . . . . . .. .. .. .. .. , . . . . . . .. . .. .. . 3-256
<br />3.17.3 Affected Environment. . . . . . . . . . . . . . . . . .. . .. . .. . . , . . . . . . .. . . . . .. 3-257
<br />3.17.3.1 Structural Components of RefmedAltemative4 .............3-258
<br />3.17.3 .1.1 Durango Pumping Plant and Ridges Basin Inlet
<br />Conduit .......,......................... 3-258
<br />3.17.3.1.2 Ridges Basin Dam and Reservoir ,............ 3-258
<br />3.17.3.1.3 Navajo Nation Municipal Pipeline ............ 3-258
<br />3.17.3.2 Structural Components of Refmed Alternative 6 . , . . . . . . . . . , . 3-258
<br />3.17.3.2.1 Lemon Dam and Reservoir .................. 3-258
<br />3.17.3.2.2 Navajo Nation Municipal Pipeline .....,....,. 3-259
<br />3.17.3.3 Non-Binding End Uses and Conveyance Systems. . . . . . . . . . . . 3-259
<br />3.17.4 Environmental Consequences and Mitigation ..............,........ 3-259
<br />3.17.4.1 RefinedAlternative4.................................. 3-259
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