FIGURE 4Regional Mean Annual Precipitation

7123GROUNDWATER RESOURCES INVESTIGATION REPORT - TIERRA DEL SOL SOLAR FARMNOVEMBER 2013

SOURCE: BING MAPS, USGS PRECIPITATION DATA

0 1 2Miles

MEXICO

LegendTierra del Sol Solar Farm

Tierra Del Sol Precipitation Gage

Campo Precipitation Gage

Boulevard Precipitation Gage

Precipitation Inches

8

9

11

14

18

22.5

Groundwater Resources Investigation Report Tierra del Sol Solar Farm Project

Current General Plan Land UseGROUNDWATER RESOURCES INVESTIGATION REPORT - TIERRA DEL SOL SOLAR FARM

SOURCE: Bing Maps, SanGIS

NOVEMBER 2013

0 1,000500Feet

7123

MEXICO

LegendTierra Del Sol Project Limits

Parcels

0.5-Mile Buffer

Open Space (Conservation)

Public/Semi-Public Facilities

Rural Lands (RL-20)

Rural Lands (RL-80)

Semi-rural Residential (SR-10)

Tribal Lands

FIGURE 5

0.5 Mile

Well B

Groundwater Resources Investigation Report Tierra del Sol Solar Farm Project

Klp

Kih

Jsp

Jsp

MzPzm

Qya

Tj

Ktg

Qya

Kih Ta

Qya

Klp

Qya

Kgm

Jsp

Tj

Qya

Qt

Kih

Ta

Ta

Ta

Ta

Copyright:' 2013 National Geographic Society, i-cubed

Regional Geologic MapGROUNDWATER RESOURCES INVESTIGATION REPORT - TIERRA DEL SOL SOLAR FARM

SOURCE: Bing Maps, SanGIS 2012

NOVEMBER 2013

0 10.5Miles

7123

LegendTierra Del Sol Solar Farm Limits

Geologic Unit, NameQya, Young alluvium

Qt, Terrace deposits

Ta, Anza Formation

Tj, Jacumba Volcanics

Kgm, Tonalite of Granite Mountain

Kih, Indian Hill granodiorite of Parrish and others (19

Klp, Tonalite of La Posta

Ktg, Tonalite and grabbro

Jsp, Migmatitic schist and gneiss of Stephenson Peak

MzPzm, Rocks of Jacumba Mountains

FIGURE 6

Klp

Groundwater Resources Investigation Report Tierra del Sol Solar Farm Project

Soils MapGROUNDWATER RESOURCES INVESTIGATION REPORT - TIERRA DEL SOL SOLAR FARM

SOURCE: Bing Maps, SanGIS 2010

NOVEMBER 2013

0 1,000500Feet

7123

Well 1Well 2Well 3

Well 4

Well A

Well B

MEXICO

Tierra Del Sol Project Limits

0.5-Mile Buffer

Intermittent Stream

Soil UnitAcid igneous rock land, Acg

Kitchen Creek loamy coarse sand, KcC

La Posta rocky loamy coarse sand, LcE2

Mottsville loamy coarse sand, MvC

Tollhouse rocky coarse sandy loam, ToE2

FIGURE 7

WHH-1

GS-1

GS-2

LK-1

RSD-1

GR-1

RM-1

RM-3

RSH-1RSH-3

RSH-2

Well 5

0.5 Miles

KcC

MvCLcE2

KcC

LcE2

LcE2

MvC

MvC

KcC

LcE2

MvC

Acg

ToE2

RM-2

Groundwater Resources Investigation Report Tierra del Sol Solar Farm Project

FIGURE 8

IFSAR DIGITAL ELEVATION MODELGROUNDWATER RESOURCES INVESTIGATION REPORT - TIERRA DEL SOL SOLAR FARM

SOURCE: NOAA

7123

NOVEMBER 2013

0 21Miles

MEXICO

Tierra Del Sol Site Wells

Tierra Del Sol Project Boundary

Klp, Tonalite of La Posta

Water, Water body

Faults (solid where certain, dashed where approximate, dotted where concealed)

Groundwater Resources Investigation Report Tierra del Sol Solar Farm Project

Tierra Del Sol Conceptual Hydrologic Cross Section A-A’GROUNDWATER RESOURCES INVESTIGATION REPORT - TIERRA DEL SOL SOLAR FARM

SOURCE: Crossview 1.1

NOVEMBER 20137123

FIGURE 9

Scale 1 inch = 500 feetNo Vertical Exaggeration

0 1000 2000 3000 4000 5000 6000

2200

2400

2600

2800

3000

3200

3400

3600

3800

4000

4200

4400

4600

4800

5000

5200

5400

Elev

ation

(Fee

t)

Horizontal Distance (Feet)

Well A Well 5 Well 3 Well 2

Well 1Well B

A’A

TD1,000’

TD90’

TD912’

TD492’

TD282’

TD1,311’

LegendWater Elevation Contour. Dashed Where Approximate, Queried Where Inferred.Inferred Contact Between Weathered and Unweathered Tonalite. Dashed WhereApproximate, Queried Where Inferred.

Note: Water Levels Measured on 11/6/2012. Location of cross section shown on Figure 10.

Klp, Weathered La Posta Tonalite

???

???

??

Klp, Unweathered La Posta Tonalite

LAND SURFACE

Groundwater Resources Investigation Report Tierra del Sol Solar Farm Project

On-site and Off-site Well LocationsGROUNDWATER RESOURCES INVESTIGATION REPORT - TIERRA DEL SOL SOLAR FARM

SOURCE: Bing Maps, SanGIS 2010, SANDAG 2009

NOVEMBER 2013

0 1,000500Feet

7123

MEXICO

FIGURE 10

A’

A

Tierra del Sol Project Limits

0.5-Mile Buffer

Rural Residential

Geologic cross-section line(as shown on Figure 9)

County Well Permits

On-Site Wells

Off-Site Wells (Colored byOwner)

Groundwater Resources Investigation Report Tierra del Sol Solar Farm Project

Potential Groundwater-Dependent VegetationGROUNDWATER RESOURCES INVESTIGATION REPORT - TIERRA DEL SOL SOLAR FARM

SOURCE: Bing Maps, SanGIS, Dudek 2012

NOVEMBER 2013

0 500250Feet

7123

MEXICO

FIGURE 11

Tierra del Sol Solar Farm Boundary

Vegetation BSC, Flat-topped Buckwheat

BSC/RSC, Flat-topped Buckwheat/Red Shank Chaparral

BSS, Big Sagebrush Scrub

CC, Granitic Chamise Chaparral

CC/BSC, Granitic Chamise Chaparral/Flat-topped BuckwheatCLOW, Coast Live Oak Woodland

DL, Disturbed Land

GMX, Granitic Mixed Chaparral

GMX/BSC, Granitic Mixed Chaparral/Flat-topped Buckwheat

OW, Open Water RSC, Red Shank Chaparral

SOC, Scrub Oak Chaparral

dBSC, disturbed Flat-topped Buckwheat

CLOW

CLOW

Potential Groundwater-Dependent Habitat

Potential Groundwater-Dependent Habitat

Groundwater Resources Investigation Report Tierra del Sol Solar Farm Project