Animas-La PLata Project Environmental Impact Statement

TABLE OF CONTENTS (continued)
Cha ter
Page No.
KMA
3.15.3.1 Federal Highways ...... ............................... 3 -236
3.15.3.2 State Routes .......... ...............................
3 -236
3.15.3.3 County Roads ......... ...............................
3 -237
3.15.3.3.1 County Road 125 ..........................
3 -237
3.15.3.3.2 County Road 141 ..........................
3 -237
3.15.3.3.3 County Road 211 ..........................
3 -237
3.15.3.3.4 County Road 212 ..........................
3 -237
3.15.3.3.5 County Road 213 ..........................
3 -238
3.15.4
Environmental Consequences and Mitigation .......................
3 -238
3.15.4.1 Refined Alternative 4 ... ...............................
3 -238
3.15.4.2 Refined Alternative 6 ... ...............................
3 -244
3.15.4.2.1 Structural Components .....................
3 -244
3.15.4.3 No Action Alternative .. ...............................
3 -245
3.16 AIR QUALITY ........... .......... ..............................3
-246
3.16.1
Introduction ................... ...............................
3 -246
3.16.2
Methodology .................. ...............................
3 -246
3.16.2.1 Evaluation Methodology ......... .....................
3 -246
3.16.2.2 Significance Criteria .... ...............................
3 -246
3.16.3
Affected Environment ..........: ...............................
3 -247
3.16.3.1 Climate
.............. ............................... 3 -247
3.16.3.2 Local Ambient Air Quality .............................. 3 -247
3.16.3.3 Regional Ambient Air Quality ........................... 3 -248
3.16.4
Environmental Consequences and Mitigation .......................
3 -249
3.16.4.1 Refined Alternative 4 ... ...............................
3 -249
3.16.4.1.1 Structural Component Impacts ...............
3 -249
3.16.4.1.2 Non - Binding Water End Use and Conveyance
Impacts.... ..............................3
-251
3.16.4.2 Refined Alternative 6 ... ...............................
3 -253
3.16.4.2.1 Structural Component Impacts ...............
3 -253
3.16.4.2.2 Non - Structural Component Impacts ...........
3 -254
3.16.4.2.3 Non- Binding End Use and Conveyance Impacts ..
3 -255
3.16.4.3 No Action Alternative .................................
3 -255
3.17 NOISE
3.17.1
.............................. ..............................3
Introduction
-255
................... ...............................
3 -255
3.17.2
Methodology ................... ..............................3
-256
3.17.2.1 Evaluation Methodology ...............................
3 -256
3.17.2.2 Significance Criteria .... ...............................
3 -256
3.17.3
Affected Environment ........... ...............................
3 -257
3.17.3.1 Structural Components of Refined Alternative 4 .............
3 -258
3.17.3.1.1 Durango Pumping Plant and Ridges Basin Inlet
Conduit ... ..............................3
3.17.3.1.2 Ridges Basin Dam and Reservoir ..............
-258
3 -258
3.17.3.1.3 Navajo Nation Municipal Pipeline ............
3 -258
3.17.3.2 Structural Components of Refined Alternative 6 .............
3 -258
3.17.3.2.1 Lemon Dam and Reservoir ..................
3 -258
3.17.3.2.2 Navajo Nation Municipal Pipeline ............
3 -259
3.17.3.3 Non - Binding End Uses and Conveyance Systems ............
3 -259
3.17.4
Environmental Consequences and Mitigation .......................
3 -259
3.17.4.1 Refined Alternative 4
3
... ...............................
-259
KMA