Slover

Victoria

Arlington

Tyler

Central

Iow

a

Magnolia

La Sierra

Riv

ersi

de

Van Buren

Limonite

Barton

Adams

Mai

n

Mar

ket

Mission

Hole

Wells

Oran

ge

Broc

kton

Wat

erm

an

Locu

st

Palm

Alessandro

Dewey

Was

hing

ton

3rd

Pierce

Grand

la C

aden

a

Arm

stro

ng

Bellegrave

Mou

nt V

erno

n

Holmes

Monroe

68th

7th

Colorado

Marlborough

Hills

ide

Redw

ood

Pigeon Pass

Rub idoux

Hermosa

Cloverdale

Park

Martin Luther King

Schleisman

Valley

Cridge

Etiw

anda

Riverview

Avon

Remington

Mer

idia

n

Fairm

ount

Mountain View

Linden

Merrill

Mer

idia

nM

erid

ian

Mou

nt V

erno

n

Barton

Limonite

Monroe

Barton

Pigeon Pass

Mag

nolia

Van Buren

Iow

a

Etiw

anda

Bellegrave

Slover

Magnolia

Alessandro

Washington

Mission

Bellegrave

Palm

Washington

Van Buren

Monroe

§̈¦10

§̈¦15

§̈¦215

§̈¦215

·|}þ91

·|}þ60

·|}þ60

·|}þ60

LegendHighway

Roads

Model Boundary

Santa Ana River

Active Model Cells - Layer 3

Figure 6Active Model Cells

Layer 3

²0 1 2 3 40.5

Miles

Cross Section B-B’Figure 8

April 2010

0

200

400

600

800

1000

1200

Elev

ation

(fe

et)

N Main St. I-215SARB B’

Rows

Layer 2Upper Alluvium

Layer 3Lower Alluvium

Bedrock

Layer 1River Deposits

21 25 29 33 37 41 45 49 53 57 61 65 69 73 77 81 85 89 93 97 101

105

109

113

117

121

125

129

133

137

141

145

149

153

157

161

165

169

173

177

181

185

189

193

197

201

205

209

213

0

10

20

30

40

50

60

10

15

20

25

Long‐Term  Average Annual Rainfall = 10.3 inches

Model CalibrationPeriod (1965 ‐ 2007)Average Annual Rainfall = 10.3 inches

-30

-20

-10

0

5

1880

1890

1900

1910

1920

1930

1940

1950

1960

1970

1980

1990

2000

Annual Rainfall Cumulative Departure from Annual Mean Rainfall

Annual Rainfall At Riverside Station 179April 2010

Data Source: Riverside County Flood Control and Water Conservation District

Figure 9

!'!'

!'

!'

Slover

Victoria

Arlington

Tyler

Central

Iow

a

Magnolia

La Sierra

Riv

ersi

de

Van Buren

Limonite

Barton

Adams

Mai

n

Mar

ket

Hole

Wells

Oran

ge

Mission

Broc

kton

Wat

erm

an

Locu

st

6th

Palm

Was

hing

ton

Alessandro

Dewey

3rd

Pierce

Grand

la C

aden

a

Arm

stro

ng

Bellegrave

Mou

nt V

erno

n

H olmes

Monroe

68th

7th

Colorado

Marlborough

Hills

ide

Redw

ood

Pigeon Pass

Rubid oux

Hermosa

Park

Martin Luther King

Valley

Cridge

Etiw

anda

Schle isman

Riverview

Avon

Mockingbird Canyon

Mer

idia

n

Fairm

ount

Mountain View

Linden

Merrill

Mer

idia

nM

erid

ian

Mou

nt V

erno

n

Barton

Limonite

Monroe

Barton

Pig eon Pass

Mag

nolia

Van Buren

Iow

a

Etiw

anda

Bellegrave

Slover

Magnolia

Washington

Alessandro

Mission

Bellegrave

Palm

Washington

Van Buren

Monroe

§̈¦10

§̈¦15

§̈¦215

§̈¦215

·|}þ91

·|}þ60

·|}þ60

Warm CR11060400

Lytle CR11065000

Santa Ana River at E Street11059300

Santa Ana River at MWD Crossing11066460

RIX

Rialto WWTP

Legend

kj Rainfall Station 179

!' Stream Gage

Highway

Reference Roads

Santa Ana River

Active Model Cells

Figure 10Rainfall and

Streamflow Stations

²0 1 2 3 40.5

Miles

Data Sources:Rainfall Station - Riverside County Flood Control and Water ConservationDistrictStream Gage - USGS

kj

179

2.15'' 2.17''

1.69''

0.75''0.83''

1.51''

0 75

1.00

1.25

1.50

1.75

2.00

2.25

2.50

2.75

3.00

Ave

rage

Mon

thly

Rai

nfal

l (in

.)

0.29''

0.05'' 0.04''0.16''

0.24''

0.47''

0.00

0.25

0.50

0.75

Jan

Feb

Mar

Apr

May Jun Jul

Aug Sep

Oct

Nov Dec

A

Average Monthly Rainfall at Riverside Station 179

Data Source: Riverside County Flood Control and Water Conservation District

(1880 to 2008 Hydrological Conditions)April 2010

Figure 11

Santa Ana River Annual Inflows and Outflow, (AFY)Figure 12

April 2010

0

50,000

100,000

150,000

200,000

250,000

300,000

350,000

400,000

1965

1967

1969

1971

1973

1975

1977

1979

1981

1983

1985

1987

1989

1991

1993

1995

1997

1999

2001

2003

2005

2007

Flow

, AFY

Water Year

Inflow Colton WWTP Rialto WWTP RIX Outflow

(Inflow is the sum of streamflows measured at USGS gages at Lytle Cr, Warm Cr, and E St. Outflow is measured at MWD Crossing.)

Slover

Victoria

Arlington

Tyler

Central

Iowa

MagnoliaRiv

erside

La Sierra

Van Buren

Limonite

Barton

Adams

Main

Marke

t

Mission

Hole

Wells

Orang

e

Water

man

Brockt

on

Locu

st

Palm

Alessandro

Dewey

Wash

ington

3rd

Pierce

Grand

la Ca

dena

Armstro

ng

Bellegrave

6thMo

unt V

ernon

H olmes

Monroe

68th

7th

Colorado

Marlborough

Hillsid

e

Redw

ood

Pigeon Pass

Rub idouxHermosa

Cloverdale Park

Martin Luther King

Schleisman

Valley

Cridge

Etiwa

nda

Riverview

Avon

Remington

Merid

ian

Mockingbird Canyon

Fairm

ount

Mountain View

Linden

Merrill

Merid

ianMe

ridian

Moun

t Vern

on

Barton

Limonite

Monroe

Barton

Pigeon Pass

Magn

olia

Van Buren

Iowa

Etiwa

nda

Bellegrave

Slover

Magnolia

Alessandro

Washington

MissionBellegrave

Palm

Washington

Van Buren

Monroe

§̈¦10

§̈¦15

§̈¦215

§̈¦215

·|}þ91

·|}þ60

·|}þ60

·|}þ60

LegendHighwayRoadsModel Boundary

Groundwater Elevation650 - 680681 - 710711 - 740741 - 770771 - 800801 - 830831 - 860861 - 890891 - 920921+

Figure 13Initial Model Groundwater

Elevations

²0 1 2 3 40.5

MilesData Sources•Groundwater Elevations Developed from Spring 1965Water Level Data

Slover

Victoria

Arlington

Tyler

La Sierra

Central

Iow

a

Magnolia

Riv

ersi

de

Van Buren

Limonite

Barton

Adams

Mai

n

Mar

ket

Mission

Wat

erm

an

Hole

Wells

Was

hing

ton

Oran

ge

Broc

kton

Locu

st

6th

Palm

Alessandro

Dewey

3rd

Pierce

Grand

la C

aden

a

Arm

stro

ng

Bellegrave

Mou

nt V

erno

n

Holmes

Monroe

68th

7th

Colorado

Marlborough

Hill

side

Mockingbird Canyon

Redw

ood

Pigeon Pass

Rubidoux

Hermosa

Cloverdale Park

Martin Luther King

Schleis man

Valley

Cridge

Etiw

anda

Harley John

Riverview

Avon

Remington

Mer

idia

n

Fairm

ount

Mountain View

Linden

Mer

idia

nM

erid

ian

Mou

nt V

erno

n

Barton

Limonite

Monroe

Barton

Pigeon Pass

Mag

nolia

Van Buren

Iow

a

Etiw

anda

Bellegrave

Magnolia

Alessandro

Mission

Washington

Bellegrave

Washington

Palm

Van Buren

Monroe

§̈¦10

§̈¦15

§̈¦215

§̈¦215

·|}þ91

·|}þ66

·|}þ60

·|}þ30

·|}þ60

·|}þ60

LegendHighway

Roads

Boundary Condition TypeModel Grid - Active Cells

Constant Head

General Head

Horizontal Flow Barrier

Injection Wells

River

Extraction Wells

Figure 14Boundary

Conditions

²0 1 2 3 40.5

Miles

§̈¦215

§̈¦10

Riverside Narrows

Hole Lake

Arlington Narrows

Rialto Basin

Rialto-Colton Fault

San Jacinto Fault

Constand Head

River

§̈¦10

Chino Basin

Rialto-Colton Fault

Bunker Hill Basin

94

8990

92

86

3

1

2

5

93

85

30

103

26

9

82

34

91

109

70

43

95

87

60

50

24

17

77

19

21

18

810

76

112

7

67

16

75

48

32

96

23

41

64

78

11

25

44

66

69

79

38

62

49

6

73

45

4

53

46

22

33

42

58

35

56

71

65

29

100

47

28

52

63

55

59

54

102

36

37

84

72

57

51

40

31

13

106

98

68

88

15

97

111

113

12

74

14

107

27

61

39

80

110

20

108

104

81

99

83

105

101

§̈¦10

§̈¦15

§̈¦215

§̈¦215

·|}þ91

·|}þ60

·|}þ60

·|}þ60

Figure 15Subregions

and Small Watersheds

²0 1 2 3 40.5

Miles

LegendHighway

1969 Judgment Boundaries

Active Model Cells

Subregions

Santa Ana River

Small Watersheds

Stream and Flood Control Structure

9

1

6

3

32

2

0

1

78

22

1517

#7

#2#1

#7

10

#23

#21

#24

MILL

#18A

NO 1

CR #4

LV #2LV #1LV #3

RN #7

CR 4-A

RN #22RN #21

RN #20

RN #17

MEEKS 1

RUSSELL

BRUNTON

DEBERRY

FLUME 5

FLUME 2

FLUME 3

FLUME 6

FLUME 4

1 HOUSE

VAUGHN 1

JURUPA 1GARNER D

GARNER CGARNER B

CIT ST 2 PALMYRTA

JURUPA 3

JURUPA 7

350" #5

DISPOSAL

PALM AVE

PICO #64

JOHNSON 1

Russell C

#3 28TH ST

Irrigation

AGUA MANSA

1 AND HALF

HIGHGROVE 3

PLANT NO 25

PLANT NO 26

PLANT NO 19

Dom Pellisi

PALMYRITA #2

Main Pellisi VAN BUREN #2VAN BUREN #1

Riv Canal 60

Sunnyslope #5

PEARSON MUTAL

#8, HIGHGROVE

#41

#4, Old Skotty

ELECTRIC Street

TWIN BUTTE # 6

Moore Griffith #1

NO 1, W Riv Mutual

PL 18/Slover Mutual

PL 29 / Cram-Wright

§̈¦10

§̈¦215

§̈¦215

·|}þ66

LegendHighway

Active Model Cells

Model Boundary

Santa Ana River

Model Area Wells by Agency_̂ City of Colton

#* Private Pumpers

Riverside Highland

" City of Riverside

$+ Rubidoux CSD

%, Water Agencies with Min. Pumping

G West Valley Water Dist.

Service AreasColton

Rialto

RPU

Jurupa

Riverside Highland

Rubidoux

Terrace WC

West Valley

Figure 16Groundwater

Extraction WellsRiverside North Basin

Rialto-Colton Basin

²0 0.5 1 1.5 20.25

Miles

City of Rialto

West Valley Water District

City of Colton

Riverside Highland Water Company

City of Riverside

Rubidoux CSD

TerraceWater

Company

1

63

32

#4 Old Skotty

1

1

HQ

#7

#2 #1

#2

10

#18#17

#21

POLK

NO 1MORI

FILL

NO 1

NO 1

RN#6

LV #2LV #1

#8, HIGHGROVE

RN #7

GARNER C

HOLE 1

DALY 1

HOLE 2

ARMY 3ARMY 1

DALY 2

MEGGSN

OLD #4

JENSEN

1ST ST

RN #22RN #21

RNCH 1

RUSSELL, RUSSELL B, RUSSEL C

BRUNTON

11TH STFREEWAY

DEBERRY

TWIN SPRINGS 1&2

1 HOUSE

ISELIN 2ISELIN 1

SANITARY

LEMONA 1MULBERRY

JURUPA 1GARNER D

GARNER B

CUNHAM 2

GURNEY 1

PALMYRITA #2

PALM AVE

PICO #64

PIC LAK 8

HENDRICKS

GARNER #1 (T&G)

#3 28TH ST

#2, Troyer

PIC LAK 14

Irrigation

AGUA MANSA

1 AND HALF

#7, Daly #2

Olivewood 3Olivewood 2

Olivewood 1

HIGHGROVE 3

Edmunds "D"

Dom Pellisi

#1-CRESTMORE

#14, 46th St

#13 HUNTER 6

#12, Airport

ORANGE ACRES

1, Palmyrita

Main Pellisi VAN BUREN #2 VAN BUREN #1

Sunnyslope #5

PEARSON MUTAL

1 (Rio Rancho)

#8, 34th & Daly

LINCOLN HEIGHTS

ELECTRIC Street

Moore Griffith #1

FAIRMOUNT PARK #1

NO 1, W Riv Mutual

#20 2-Ft Fremont SW#11 CLEMENTS (OLD 4)

§̈¦215

§̈¦215

·|}þ91

·|}þ60

·|}þ60

LegendHighway

Active Model Cells

Model Boundary

Santa Ana River

Model Area Wells by Agency#* Private Pumpers

Riverside Highland

" City of Riverside

$+ Rubidoux CSD

%, Water Agencies with Min. Pumping

Service AreasColton

RPU

Jurupa

Riverside Highland

Rubidoux

West Valley

Figure 17Groundwater

Extraction WellsRiverside South Basin

²0 0.5 1 1.5 20.25

Miles

Jurupa CSD

Rubidoux CSD

West Valley Water District

City of Colton

Riverside HighlandWater Company

City of Riverside

City of Colton

#*

#*

#*

#*

#*

"

"

"

"""

#*

#*

#*

#*

#*

#*#*#*#*

#*

#*

#*

#*#*

#*

#*

#*

#*

#*

"

"

"""

"

""

"

"

""

"

"

"

XX

X

XX

POLK

HOLE 1

DUNLOP

WALTON

DALY 1

HOLE 2

ARMY 3

ARMY 1

DALY 2

ISELIN 2

ISELIN 1

WMWD-DS #1

WMWD-DS #2

WMWD-DS #5

WMWD-DS #3

WMWD-DS #4

BUCHANAN #2

BUCHANAN #1

Olivewood 3

Olivewood 2

Olivewood 1

ORANGE ACRES

HARRISON WASH

TWIN BUTTES 1

LINCOLN HEIGHTS

·|}þ91

LegendHighway

Active Model Cells

Model Boundary

Santa Ana River

Model Area Wells by Agency#* Private Pumpers

" City of Riverside

X Western Municipal Water Dist.

Service AreasCorona

RPU

Home Gardens

WMWD

Figure 18Model Well Locations

Arlington Basin

²0 0.5 10.25

Miles

City of Corona

City of Riverside

Home Gardens CSD

Western Municipal Water District

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

1965

1967

1969

1971

1973

1975

1977

1979

1981

1983

1985

1987

1989

1991

1993

1995

1997

1999

2001

2003

2005

2007

Ann

ual P

umpi

ng (a

f)

Year

Groundwater Production from Wells in Rialto Colton Basin

Riverside Highland Colton Riverside Private

April 2010Figure 19

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

1965

1967

1969

1971

1973

1975

1977

1979

1981

1983

1985

1987

1989

1991

1993

1995

1997

1999

2001

2003

2005

2007

Ann

ual P

umpi

ng (a

f)

Year

Annual Groundwater Extraction from Wells in Riverside North Basin

Riverside (RPU) Riverside HighlandWest Valley Water Agencies with Minumal Annual ProductionPrivate Meeks & DaleyColton RIX Extraction

April 2010

Figure 20

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

1965

1967

1969

1971

1973

1975

1977

1979

1981

1983

1985

1987

1989

1991

1993

1995

1997

1999

2001

2003

2005

2007

Ann

ual P

umpi

ng (a

f)

Year

Annual Groundwater Extraction from Wells in Riverside South Basin

Private Rubidoux Riverside Highland Riverside (RPU)

April 2010Figure 21

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

1965

1967

1969

1971

1973

1975

1977

1979

1981

1983

1985

1987

1989

1991

1993

1995

1997

1999

2001

2003

2005

2007

Ann

ual P

umpi

ng (a

f)

Year

Groundwater Production from Wells in Riverside Basin

RIX Extraction Water Agencies with Minimal Annual ProductionPrivate West ValleyRubidoux Riverside HighlandRiverside

April 2010Figure 22

0

2,000

4,000

6,000

8,000

10,000

12,000

1965

1967

1969

1971

1973

1975

1977

1979

1981

1983

1985

1987

1989

1991

1993

1995

1997

1999

2001

2003

2005

2007

Ann

ual P

umpi

ng (a

f)

Year

Annual Groundwater Extraction fromWells in Arlington Basin

Western (WMWD) Riverside (RPU) Private

April 2010Figure 23

0

20,000

40,000

60,000

80,000

100,000

120,000

140,000

1965

1967

1969

1971

1973

1975

1977

1979

1981

1983

1985

1987

1989

1991

1993

1995

1997

1999

2001

2003

2005

2007

Ann

ual P

umpi

ng (a

f)

Year

Groundwater Production from Wells in Model Area

Riverside North Riverside South Arlington Rialto-Colton RIX Extraction

April 2010

Figure 24