!!!!!!!
!!
!!!
!!!
!!!
!!!
!
!!
!!!
!!!
!
Hayfield Valley
Central Project Area
AR
IZO
NA
AR
IZO
NA
Eagle Tank Springs
Hayfield Summit Spring
Hayfield Spring
Buzzard Springs
EAST SALTON SEA
ARROYO SECO VALLEY
CHOCOLATE VALLEY
OROCOPIA VALLEY
PALOVERDEVALLEY
PALO VERDE MESACHUCKWALLAVALLEY
PINTO VALLEY
RICE VALLEY
VIDAL VALLEYDALE VALLEY CADIZ VALLEY
WARD VALLEY
QUIENSABEPOINT
VALLEY
IMPERIAL COUNTY
SAN BERNARDINO COUNTY
RIVERSIDE COUNTY
RIVERSIDE COUNTY
|ÿÿÿ78
|ÿÿÿ62|ÿÿÿ62
|ÿÿÿ111
|ÿÿÿ177
£¤95
§̈¦10
§̈¦10
Salton Sea
Spring
Creek, Stream, etc.
Major River
!!! !!! Water Supply Pipeline (buried)
Transmission Route
Playa
County
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.Springs Near Project Area
SOURCE: Groundwater Basins from CA Departmentof Water Resources, Bulleting 118, v. 3 (date).
June 2010 Figure 3.3-1
01-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-1_
Spr
ings
.mxd
S
EW
¯0 7 14Miles
Hayfield Valley
Central Project AreaEagle Tank Springs
Hayfield Summit Spring
Hayfield Spring
Buzzard Springs
ARROYO SECO VALLEY
CHOCOLATE VALLEY
OROCOPIA VALLEY
PALO VERDE MESACHUCKWALLAVALLEY
PINTO VALLEY
RICE VALLEY
WARD VALLEY
78
177
10
02-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-2W
ellL
ocat
ions
.mxd
SE
W
0 5 10Miles
Well
Well With DWR Log
Spring
Creek, Stream, etc.
Colorado River Aqueduct
Water Supply Pipeline (buried)
Transmission Route
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.WELL LOCATIONS
June 2010 Figure 3.3-2
P-9
C-10
CW#4
CW#3
CW#2
CW#1P-12
P-11P-10
5/16-7M2
5/15-1L1
5/15-13B1 5/16-17P1
4/16-31D1
4/15-13C1
6/19-33A1
5/17/33N1
5/17-30F15/14-24R1
T6SR20E33
T5SR16E14
T4S15E36A
5/16-8K1
A
C
B
A'
C'
B'
02-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_.m
xd
SE
W
0 4 8Miles
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.GEOLOGIC PROFILE LOCATIONS
June 2010 Figure 3.3-3
Thrust Fault (barbs on upper plate;dashed where approximately located,dotted where concealed)
Fault (dashed where approximatelylocated, dotted where concealed)
Geologic Contact (dashedwhere approximately located)
SOURCE: Jennings, 1967
Qs
Qya
Qya
Qs
?
? ? ?
??
?
?
?
??
?gr
gr
T05S.R17E 30F1
T05S.R17E 30F1
T05S.R16E 7P1
SECTION C
-C’
T05S.R17E 33N1
T06S.R19E 33A1
T06S.R20E 33
5S/16E-7
M2
Well 3
T05S.R14E 24R1
100’
0’
-100’
300’
200’
NW
A
SE
A’DIRECTION
DIRECTION
Elev
atio
n (f
eet
MSL
)
-400’
-300’
-200’
-500’
-800’
-1000’
-900’
-700’
-600’
400’
1800’
1700’
1600’
1500’
1400’
1300’
1200’
1100’
1000’
900’
800’
700’
600’
500’
100’
0’
-100’
300’
200’
-400’
-300’
-200’
-500’
-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’
-900’
-1000’
-700’
-600’
400’
1800’
1700’
1600’
1500’
1400’
1300’
1200’
1100’
1000’
900’
800’
700’
600’
500’
EAGLE MOUNTAINCROSS-SECTION A-A’
CHUCKWALLA VALLEYHAYFIELD VALLEY
Bend
Bend
T06S.R12E 19K1
?
Qc
Qc
Qc
Qc
Qc
Qc
Qc
QcQc
gr
gr
grgr
gr
Qc?Qc?
Qc?
Qc?
Qc?
?
?
?
?
?
?
?
?
?
?
?
??
??
gr
gr
19331961
1961
PALO VERDE
= 5000’
LEGENDSANDS
GRAVELS
SILT OR CLAY
BASEMENT= 5000’
Horizontal Scale
= 200’
Vertical Scale
Water level
VOLCANICS
Qc = Pleistocene nonmarineQc = Quaternary AlluviumQl = Quaternary Lake DepositsQs = Dune SandQpv b = Pleistocene Volcanicgr = Mesozoic Granitic rocksms = Pre-Cretaceous Metamorphic Rocks
57 MILES
5S/16E-8
K1
5S/16E-8
F1
5S/16E-1
4
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.CROSS-SECTION A-A’
June 2010 Figure 3.3-4
1964
1992
Qal
Qc
Qc?
Qc?
Qc
ms
ms
Qs
gr
gr
P-9
P-11
P-12
CW-1
SECTION C
-C’
P-10
CW-3
100’
0’
-100’
300’
200’
W
B B’
EDIRECTION DIRECTION
Elev
atio
n (f
eet
MSL
)
-400’
-300’
-200’
-500’
-800’
-1000’
-900’
-700’
-600’
400’
1800’
1700’
1600’
1500’
1400’
1300’
1200’
1100’
1000’
900’
800’
700’
600’
500’
100’
0’
-100’
300’
200’
-400’
-300’
-200’
-500’
-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’
-900’
-1000’
-700’
-600’
400’
1800’
1700’
1600’
1500’
1400’
1300’
1200’
1100’
1000’
900’
800’
700’
600’
500’
EAGLE MOUNTAINCROSS-SECTION B-B’
LEGENDSANDS
GRAVELS
SILT OR CLAY
BASEMENT
= 2000’
Horizontal Scale
= 200’
Vertical Scale Water level
VOLCANICS
Qc = Pleistocene nonmarineQc = Quaternary AlluviumQl = Quaternary Lake DepositsQs = Dune SandQpv b = Pleistocene Volcanicgr = Mesozoic Granitic rocksms = Pre-Cretaceous Metamorphic Rocks
10 MILES
Qc?
Bald Eagle Canyon Fault
East Pit
FaultColora
do River A
queduct
Fault A ??
??
Sheephole Fault
Model Area
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.CROSS-SECTION B-B’
June 2010 Figure 3.3-5
5S/15E-13B1
5S/15E-1L1
4S/15E-36A
4S/16E-31D1
4S/15E-13C1
4S/15E-11
CW - 4
CW - 2
SECTION A
- A’
Section B - B
’
C - 10
Pinto Basin
5S/16E-7
M2
Well 2
CW-3 Airport
CHUCKWALLA VALLEY
17 MILES
100’
0’
-100’
300’
200’
N
C
S
C’
DIRECTION DIRECTION
Elev
atio
n (fe
et M
SL)
-400’
-300’
-200’
-500’
-800’
-1000’
-900’
-700’
-600’
400’
-1400’
-1100’
-1200’
-1300’
1400’
1300’
1200’
1100’
1000’
900’
800’
700’
600’
500’
100’
0’
-100’
300’
200’
-400’
-300’
-200’
-500’
-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’-800’
-900’
-1000’
-700’
-600’
400’
-1400’
-1100’
-1200’
-1300’
1400’
1300’
1200’
1100’
1000’
900’
800’
700’
600’
500’
EAGLE MOUNTAINCROSS-SECTION C-C’
Qs
Qal
Qal
Qal
Qc
Qc
Qc?
gr
gr
gr
Qc?
Qc?
Qs
Qs
19641961
LEGENDSANDS
GRAVELS
SILT OR CLAY
BASEMENT
= 5000’
Horizontal Scale
Water level
VOLCANICS
Qc = Pleistocene nonmarineQc = Quaternary AlluviumQl = Quaternary Lake DepositsQs = Dune SandQpv b = Pleistocene Volcanicgr = Mesozoic Granitic rocksms = Pre-Cretaceous Metamorphic Rocks
5S/16E-8
K1
Qc?
Qpv b
ModelArea
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.CROSS-SECTION C-C’
June 2010 Figure 3.3-6
480
530
20000
25000
30000
vatio
n (fe
et m
sl)
ing)
(AFY
)
FIGURE 3.3-7DESERT CENTER GROUND WATER LEVELS
330
380
430
0
5000
10000
15000
1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Gro
undw
ater
Sur
face
Ele
v
Out
flow
(pum
pi
Date
Outflow (pumping near Desert Center)
5S/16E-7P1
5S/15E-12N1
5S/16E-7P2
estimated basin perennial yield
350
400
480
530
sl) -
Mes
a Ve
rde
Wel
l
-C
huck
wal
la B
asin
Wel
ls
FIGURE 3.3-8UPPER CHUCKWALLA VALLEY AND PALO VERDE MESA GROUND WATER LEVELS
200
250
300
330
380
430
1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Gro
undw
ater
Sur
face
Ele
vatio
n (ft
ms
Gro
undw
ater
Sur
face
Ele
vatio
n (ft
msl
)
Date
5S/16E-7P1
5S/16E-7P2
7S/20E-28C1 - Chuckwalla
7S/20E-18H1 - Chuckwalla
7S/21E-15A1 - Palo Verde Mesa
900
950
480
530
msl
) -Pi
nto
Bas
in W
ell
sl) -
Chu
ckw
alla
Bas
in W
ells
FIGURE 3.3-9DESERT CENTER AREA AND PINTO VALLEY GROUND WATER LEVELS
750
800
850
330
380
430
1950 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010
Gro
undw
ater
Sur
face
Ele
vatio
n (ft
m
Gro
undw
ater
Sur
face
Ele
vatio
n (ft
ms
Date
5S/16E-7P15S/16E-7P23S/15E-4J1 - Pinto Basin
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
1974 GROUNDWATERCONTOURS USED TO IDENTIFY
REGIONAL FLOW DIRECTION
SOURCE: Modified from California Department of Water Resources Bulletin 91-27, Figure 7 (1979)
June 2010 Figure 3.3-10
10
177
525
500
500475
450
425
400
300
275
DesertCenter
Blythe
Colora
do Ri
ver
ARIZONA
CHUCKWALLA MOUNTAINS M
ULE
MOUNTA
INS
McCOY M
OUNTAINS
PALEN M
OU
NTA
INS
CHUCKWALLA VALLEYPALO
VERDE
MESA
CADIZ VALLEY
EAG
LE M
OU
NTA
INS
PINTO
VALLEY
HAYFIELD VALLEY(OROCOPIA BASIN)
0 2 4 6 8 10 MILES
BASIN BOUNDARY (from California Dept. of Water Resources (1964b))
WATER-LEVEL CONTOUR Elevation of groundwater above mean sea level. (from W.R. Moyle, Jr. (1974))
DIRECTION OF GROUNDWATER FLOW
PROJECT SITE
LEGEND
500
R. 14 E. R. 15 E. R. 16 E. R. 17 E. R. 18 E. R. 19 E. R. 20 E. R. 21 E. R. 22 E. R. 23 E.
T.2 S.
T.3 S.
T.4 S.
T.5 S.
T.6 S.
T.7 S.
T.8 S.
115°30’ 115°00’
34°00’
33°30’
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
GROUNDWATER CONTOURSNEAR PROJECT SITE
June 2010 Figure 3.3-11
SOURCE: GSI/Water (1992) from GeoSyntec (1992)
177
1010
1986 Land UseCrop Type
Jojoba
Jojoba/Asparagus
Asparagus
Citrus
Dates/Palms
Vines
Peaches
Melons
Open Water
Greenhouses
Row Crops
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
1986 CROP LAND USENEAR DESERT CENTER
June 2010 Figure 3.3-12
02-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-12
_Cro
ps19
86.m
xd
SE
W
0 1 2Miles
Area of Detail
62
177
1010
62
Eagle Mountain
177
1010
1992 Land UseCrop Type
Jojoba
Jojoba/Asparagus
Asparagus
Citrus
Dates/Palms
Vines
Peaches
Melons
Open Water
Greenhouses
Row Crops
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
1992 CROP LAND USENEAR DESERT CENTER
June 2010 Figure 3.3-13
02-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-13
_Cro
ps19
92.m
xd
SE
W
0 1 2Miles
Area of Detail
62
177
1010
62
Eagle Mountain
177
1010
1996 Land UseCrop Type
Jojoba
Jojoba/Asparagus
Asparagus
Citrus
Dates/Palms
Vines
Peaches
Melons
Open Water
Greenhouses
Row Crops
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
1996 CROP LAND USENEAR DESERT CENTER
June 2010 Figure 3.3-14
02-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-14
_Cro
ps19
96.m
xd
SE
W
0 1 2Miles
Area of Detail
62
177
1010
62
Eagle Mountain
SOURCE: USGS DOQQ, 1996.
177
1010
2005 Land UseCrop Type
Jojoba
Jojoba/Asparagus
Asparagus
Citrus
Dates/Palms
Vines
Peaches
Melons
Open Water
Greenhouses
Row Crops
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
2005 CROP LAND USENEAR DESERT CENTER
June 2010 Figure 3.3-15
02-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-15
_Cro
ps20
05.m
xd
SE
W
0 1 2Miles
Area of Detail
62
177
1010
62
Eagle Mountain
SOURCE: USDA NAIP Aerial Photo, 2005.
177
1010
2007 Land UseCrop Type (field verified)
Jojoba
Jojoba/Asparagus
Asparagus
Citrus
Dates/Palms
Vines
Peaches
Melons
Open Water
Greenhouses
Row Crops
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
2007 CROP LAND USENEAR DESERT CENTER
June 2010 Figure 3.3-16
02-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-16
_Cro
ps20
07.m
xd
SE
W
0 1 2Miles
Area of Detail
62
177
1010
62
Eagle Mountain
SOURCE: USDA NAIP Aerial Photo, 2005.
! !! !! !! !! !! !! ! !! ! !
! !! !! !! !! !! !! ! !! ! !
! !! !! !! !! !! !! ! !! ! !
! !! !! !! !! !! !! !! !
! !! !! !! !! !! !! !! !
!!!!!!
!!!
!!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!
!
")
#*
%,
%,
#*%,
#*
")
#*
DesertCenter
CHUCKWALLA VALLEY
PINTO VALLEY
OROCOPIA VALLEY
WARD VALLEY
§̈¦10
§̈¦10
|ÿÿÿ177
C-9
EXT-2
EXT-1
MW-111
MW-110
MW-112
MW-109
3S/15E-4J1
5S/16E-25F1
WSdc3
WSdc2
WSdc1
%, Existing Monitoring Well
#* New Monitoring Well
") Proposed Extensiometer
Proposed Water Supply Well
Fault (Proctor 1992)
Certain
Approximately located
Inferred
Concealed
! ! ! ! ! ! Water Supply Pipeline (buried)
Colorado River Aqueduct
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
Project Reservoir
Township and Range
CHUCKWALLA VALLEY
OROCOPIA VALLEY
PINTO VALLEY
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
WATER SUPPLYMONITORING NETWORK
June 2010 Figure 3.3-17
03-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-17
_WS
_Mon
itor.m
xd
SE
W
¯0 3 6Miles
Brine Pond
P-8P-7
P-5
P-4
P-2
P-1P-13
MW-6
MW-5MW-4
MW-2
MW-12
MW-10
MW-8 (new)MW-8 (old)
School Well
P-9
P-3
P-12
P-11P-10
MW-9
MW-7
P-1R
MW-11
MW-5R
MW-4R
MW-102
MW-103
MW-101
MW-104
SRW-13
SRW-12
SRW-11
SRW-10
SRW-09
SRW-08
SRW-07SRW-06
SRW-04
SRW-05
SRW-03SRW-02
SRW-01
MW-105
MW-106
MW-109
MW-108
MW-107
MW-10R
Kaiser MW
East Pit Fault
Fault "B"
fault in pit
possible fault
Bald Eagle Canyon Fault
Charpied
4/15-16G1
03-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-18
_See
pRec
ovN
et.m
xd
S
EW
0 0.5 1Miles
Existing Well to be used for monitoring
Proposed New Monitoring Well
Seepage Recovery Well
Proposed New Extensiometer
Existing Well
Transmission Route
Water Supply Pipeline (buried)
Colorado River Aqueduct
Fault (Proctor 1992)
Certain
Approximately located
Approximately located, queried
Inferred
Inferred, queried
Concealed
Concealed, queried
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
MITIGATION ANDMONITORING NETWORK
June 2010 Figure 3.3-18
-10
0
10
20
30
Dra
wdo
wn
in F
eet
FIGURE 3.3-19 50-YEAR PROJECT PUMPING AFFECTS
Initial Fill Pumping Annual Make-up Water Pumping
40
50
600 10 20 30 40 50 60
Years Since Pumping Started
Upper Chuckwalla CRA (OW03)
Desert Center Centroid Well (CWdc)
Pinto Basin (OW18)
Orocopia Basin CRA (OW15)
! !! !! !! !! !! !! ! !! ! !
! !! !! !! !! !! !! ! !! ! !
! !! !! !! !! !! !! ! !! ! !
! !! !! !! !! !! !! !! !
! !! !! !! !! !! !! !! !
!!!!!!
!!!
!!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!!
!!
!
!(
!(
!(
!(
!(
!(!(
!(
!( !(
!(
!(
!(!(
!(
!(
!(
!(
!?
!(
!(
!.
!.
!.
!(
!(
!(
DesertCenter
CHUCKWALLA VALLEY
PINTO VALLEY
OROCOPIA VALLEY
WARD VALLEY
§̈¦10
§̈¦10
|ÿÿÿ177
2.8
3
3.3
5
4.23.5
4.3
4.13.9
3.73.63.5
3.63.7
3.8
3.9
4
4.2
4.2
4.3
5.3
5.4
6
5
10
!( Observation Point (OW)
!( Proposed Water Supply Well (WS)
!? Water Supply Centroid Well (CWdc)
!. Water Supply Image Well (IWdc)
Well
Colorado River Aqueduct
! ! ! ! ! ! Water Supply Pipeline (buried)
Groundwater Contour (ft of drawdown)
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
! ! !! ! !! ! !! ! !! ! !! ! !! ! ! !! ! ! !
Project Reservoir
CHUCKWALLA VALLEY
OROCOPIA VALLEY
PINTO VALLEY
Eastern Riverside County, California
Environmental Impact Reportprepared for State Water Resources Control Board
by GEI Consultants, Inc.
DRAWDOWN AFTER50 YEARS OF
PROJECT OPERATION
June 2010 Figure 3.3-20
03-J
un-2
010
Z
:\Pro
ject
s\08
0472
_Eag
leM
tn_f
rom
Den
ver\E
IR_F
igur
es\F
igur
e_3_
3-20
_50y
rDra
wdo
wn.
mxd
S
EW
¯0 3 6Miles