Crescenta Valley County ParkCrescenta Valley County ParkCrescenta Valley County ParkCrescenta Valley County ParkMultiMulti--use Projectuse Project

Presented byCrescenta Valley Water DistrictCrescenta Valley Water District

February 24, 2009

Project ScopeProject Scope•• Storm Water RechargeStorm Water Recharge

–– Capture storm water at Crescenta ValleyCapture storm water at Crescenta ValleyCapture storm water at Crescenta Valley Capture storm water at Crescenta Valley Park to recharge the Verdugo Basin to Park to recharge the Verdugo Basin to maintain groundwater levelsmaintain groundwater levels

•• Water Conservation EducationWater Conservation Education–– Utilize an area of the park for a water Utilize an area of the park for a water

conservation demonstration gardenconservation demonstration garden•• Upgrading Parking Lot for Zero RunoffUpgrading Parking Lot for Zero Runoff

–– Reconfigure parking area to capture storm Reconfigure parking area to capture storm water onwater on--site and reduce to zero runoffsite and reduce to zero runoff

Crescenta Valley Water DistrictCrescenta Valley Water District•• CVWD formed CVWD formed -- 1950 as 1950 as

“County” Water District“County” Water DistrictCounty Water DistrictCounty Water District•• Provides water & sewer Provides water & sewer

service to 32 000service to 32 000service to 32,000 service to 32,000 residents with 8,000 residents with 8,000 connectionsconnectionsconnectionsconnections

•• Serves La Crescenta Serves La Crescenta d ti f Ld ti f Land portions of La and portions of La

Canada Flintridge, Canada Flintridge, Gl d l d M tGl d l d M tGlendale and MontroseGlendale and Montrose

StakeholdersStakeholdersStakeholdersStakeholders•• Crescenta Valley Water DistrictCrescenta Valley Water Districtyy•• City of GlendaleCity of Glendale•• Los Angeles County, Department of Parks & Los Angeles County, Department of Parks & g y, pg y, p

RecreationRecreation•• Los Angeles County, Department of Public Los Angeles County, Department of Public

W k W t h d Di i iW k W t h d Di i iWorks, Watershed DivisionWorks, Watershed Division•• ULARA Watermaster’s OfficeULARA Watermaster’s Office•• Los Angeles and San Gabriel WatershedLos Angeles and San Gabriel Watershed•• Los Angeles and San Gabriel Watershed Los Angeles and San Gabriel Watershed

CouncilCouncil•• Crescenta Valley Town CouncilCrescenta Valley Town CouncilCrescenta Valley Town CouncilCrescenta Valley Town Council

Miles

CVWD Water Supply SourcesCVWD Water Supply SourcesLocal Groundwater Local Groundwater ––Verdugo BasinVerdugo Basin

12 GW ll l t d l12 GW ll l t d l•• 12 GW wells located along 12 GW wells located along Verdugo WashVerdugo Wash

•• Provides 4.0 MGD maxProvides 4.0 MGD max•• TodayToday 60% of water demand60% of water demand•• Today Today –– 60% of water demand60% of water demand•• Dry Years Dry Years –– 50% of water demand50% of water demand

Imported WaterImported Water –– FMWD/MWDFMWD/MWDImported Water Imported Water FMWD/MWDFMWD/MWD•• Provides 5.9 MGD max Provides 5.9 MGD max •• Today Today -- 40% of water demand40% of water demand•• Dry YearsDry Years 50% of water demand50% of water demand•• Dry Years Dry Years –– 50% of water demand50% of water demand

Groundwater Cost Groundwater Cost -- $300/ac$300/ac--ftftFMWD C tFMWD C t $960/$960/ ftftFMWD Cost FMWD Cost -- $960/ac$960/ac--ftft

Preliminary Studies

•• CVWD received three (3) AB 303 grants CVWD received three (3) AB 303 grants for $785,000 from DWRfor $785,000 from DWR

–– 20032003 -- Installed 3 Monitoring WellsInstalled 3 Monitoring Wells–– 2003 2003 -- Installed 3 Monitoring WellsInstalled 3 Monitoring Wells

–– 2005 2005 -- Verdugo Basin Recharge and Verdugo Basin Recharge and Conjunctive Use StudyConjunctive Use Study

20062006 G h i l St d f thG h i l St d f th–– 2006 2006 -- Geophysical Study of the Geophysical Study of the Verdugo BasinVerdugo Basin

Storm Water Recharge

Crescenta Valley Crescenta Valley County ParkCounty Park::

1.0 1.0

1.0

1.0

6.0 11.0

11.0

16.0

CVWD # 2

CVWD # 9

VD-VPB-06

VD-VPB-07

LegendChange in WLE

18.0019.0020.00

County ParkCounty Park::• Starting in April 1984• Recharge about 340

1.0

6.0

6.0

CVWD # 7

CVWD # 1CVWD # 5

CVWD # 12

CVWD # 8

CVWD # 10

CVWD # 15

CVWD # 6

CVWD # 11

CVWD # 14

VD-VPB-01

VD-VPB-02

VD-VPB-05

12.0013.0014.0015.0016.0017.0018.00g

AF/Yr over about 40 acres at CV Park

• GWL increased by 20

VD-VPB-04

5.0006.0007.0008.0009.00010.0011.00• GWL increased by 20

feet in recharge area• GWL increased from 5

t 18 f t i ll fi ld

CVWD Wells

5000 feet

VD-VPB-03

1.0002.0003.0004.0005.000

5000 feet

to 18 feet in well field area

• Based on April 1984 to CVWD Verdugo Basin - Stress Period 259, Time Step 7884.0, Layer 1 CVWD Verdugo Basin - Stress Period 259, Time Step 7884.0, Layer 1

pDec 2002 water levels:

Crescenta Valley W ater Distric tAnnual Rainfa ll T ota l - 1983/84 through 2007/08

60

50

55

60

Annual Average R ainfall from

35

40

45Annual Average R ainfall from

October to S ept. - 83/84 to 07/08 - 22.38"

25

30

35

ches

10

15

20 In

0

5

08070605040302010099989796959493929190898887868584

07/0

06/0

05/0

04/0

03/0

02/0

01/0

00/0

99/0

98/9

97/9

96/9

95/9

94/9

93/9

92/9

91/9

90/9

89/9

88/8

87/8

86/8

85/8

84/8

83/8

Rain fall Year

Crescenta Valley W ater D istrictG d t P d ti 83/84 t 07/08 ( ft/ )G roundw ater Production - 83/84 to 07/08 (ac-ft/yr)

6,500

7 ,000

7 ,500

7 150 ft/

5 ,000

5 ,500

6 ,000

6 ,5007,150 ac-ft/yrSafe Yield T otal

3 ,500

4 ,000

4 ,5003,294 ac-ft/yr - CVW D

2,000

2 ,500

3 ,000

0

500

1 ,000

1 ,500

007-08

06-07

05-06

04-05

03-04

02-03

01-02

00-01

99-00

98-99

97-98

96-97

95-96

94-95

93-94

92-93

91-92

90-91

89-90

88-89

87-88

86-87

85-86

84-85

83-84

Area 1 Area 1 ––Landscape Landscape

Area 2 New

ppgarden and garden and infiltration infiltration galleriesgalleries

Area 2 – New parking lot with

infiltration galleries

PROJECT LOCATION MAPPROJECT LOCATION MAP

Crescenta Valley County ParkCrescenta Valley County Park

Dunsmuir Channel

Verdugo Wash

Infiltration GalleriesInfiltration Galleries

Water Conservation Water Conservation D i G dD i G dDemonstration GardenDemonstration Garden

Area 1:Area 1:Area 1:Area 1:•• Restoration with native and heritage plants Restoration with native and heritage plants

gardengardengg•• Provide examples of water conservation for Provide examples of water conservation for

the local communitythe local communityyyArea 2: Area 2: •• Redesigned to incorporate nativeRedesigned to incorporate nativeRedesigned to incorporate native Redesigned to incorporate native

landscaping into large parking arealandscaping into large parking area•• Capture surface water to achieve 0% runoffCapture surface water to achieve 0% runoffCapture surface water to achieve 0% runoff Capture surface water to achieve 0% runoff

to the channel to the channel

Water Conservation Water Conservation Demonstration GardenDemonstration Garden

Project ScheduleProject ScheduleTask Start D ate End D ate

P relim inary P lanning June 2009 O ctober 2009

C EQ A - Environm ental A ssessm ent A ugust 2009 January 2010

P relim inary D esign January 2010 July 2010

F inal D esign July 2010 D ecem ber 2010

B idding D ecem ber 2010 F ebruary 2011

Start C onstruction F ebruary 2011 M arch 2011y

End C onstruction/ P roject C loseout M arch 2011 O ctober 2011

Project Cost EstimateC rescenta Valley Water D istrict

C rescenta Valley C ounty P ark M ulti-use P rojectProject Cost EstimateAre a 1 Unit Cos t Cos t

Infiltration Galle rie s 1 LS $909,500Play Are a 1 LS $216,000

QuantityP re lim inary Cost Estim ate

y y j

y $ ,Lands cape Are a 1 LS $100,500

Subtotal $1,226,000Are a 2 Unit Cos t Cos t

Infiltration Galle rie s 1 LS $661,000Quantity

Parking Are a 1 LS $94,750Lands cape Are a 1 LS $118,250

Subtotal $874,000Cons truction Subtotal $2,100,000

20% C i $420 00020% Continge ncy $420,000Cons truction Total $2,520,000

Planning/D e s ign & Cons truction M anage me ntConce ptual Planning 1.5% $37,800CEQA 1 0% $25 200CEQA 1.0% $25,200Surve y 2.0% $50,400Soils Engine e r 3.0% $75,600Engine e ring 7.5% $189,000Cons truction M anage me nt 5.0% $126,000g ,Continge ncy 7.8% $196,000

Total Planning/D e s ign & Cons truction M anage me nt $700,000Total Cos t Es timate $3,220,000

Project StatusProject Status•• Conceptual Concept Conceptual Concept –– needs to be discussed needs to be discussed

further with stakeholdersfurther with stakeholdersfurther with stakeholdersfurther with stakeholders•• Funding Funding –– cost sharing by stakeholders and cost sharing by stakeholders and

through IRWMP grantthrough IRWMP grantthrough IRWMP grantthrough IRWMP grant•• The benefits include:The benefits include:

Capturing storm water to benefit the VerdugoCapturing storm water to benefit the Verdugo–– Capturing storm water to benefit the Verdugo Capturing storm water to benefit the Verdugo BasinBasin

–– Utilizing portions of the park for public educationUtilizing portions of the park for public education–– Reducing runoff and pollutants from the park Reducing runoff and pollutants from the park

•• Project is not a benefit for disadvantaged Project is not a benefit for disadvantaged communitycommunity

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