ballona creek ewmp...city of inglewood city of west hollywood city of santa monica 2 presentation...

Ba llona Cre e k EWMPSusie Santile naJuly 12, 2018

Ba llona Cre e k Wa te rshe d Ma na g e m e nt Grou pCity of Los Ange le sCounty of Los Ange le s Los Ange le s Flood Control Distric t City of Be ve rly Hills City of Culve r CityCity of Ing le wood City of We st Hollywood City of Santa Monica

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Pre se n t a t ion Ou t line● Watershed Background

● EWMP Implementation○ LID Progress

○ Green Streets

○ Project Highlights

○ Program Highlights

Wa te rshe d At t rib u t e s8 agencies

128 square m ile s

Highly urbanize d :

60% Re side ntia l

16% Com m e rcial

540 acre s of we tlands

7 applicab le TMDLs

3Watershed Background

Re g iona l Boa rdIssu e d

MS4 Pe rm itDe c 28, 2012

EWMP De ve lop m e nt

Ba llona Cre e kEWMP

Ap p rove dAp r 20 , 2016

Cu rre nt MS4 Pe rm it Exp ire d

De c 28, 2017

2012EWMP a nd CIMP Im p le m e nta t ion

ROWD su b m it t e d

June 27, 2017

Wa t e rshe d His tory

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2017 2018

TSO for Dry We a the r Ba c t e ria

Issu e dMa y 14, 2015

2013 2014 2015 2016

Watershed Collaboration:

• Management group established in 2007

• Meets monthly

• Agencies collaborate on and cost -share watershed efforts

Watershed Background

5EWMP Implementation

● LID ordinances adopted by all agencies

● Over 1750 LIDs constructe d 2012-2017

● Capacity: 15 ac-ft

Low Im p a c t De ve lop m e nt

Tra sh TMDL

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● Over 16,000 catch basins re trofitte d

● Institutional m e asure s

● Im ple m e nting TMRP

o 3 Re ce iving Wate r Monitoring Site s

o 2 Tributary Monitoring Points

● Com pliance s ta tus: 100%

EWMP Implementation

Gre e n St re e t s

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● Green Street Policies adopted by all agencies

● City of Los Angeles: Green Street Prioritization

● County of Los Angeles: Green Street Task Force

● Beverly Hills: Stormwater Compliance Master Plan

● Culver City: Median Project

● Inglewood: Greening red curbs

● West Hollywood: Complete Streets

● Santa Monica: Permeable Alley Surfaces EWMP Implementation

PROJECT Highlights

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• Regional Projects• Green Streets• TSO Projects

● Capacity: Up to 33 cfs

● Drainage Area: 2,500 acres

● Estimated Cost: $1.7 M● Components:

○ Diversion for treatment and return

● Status: Completed ○ Evaluating Phase II feasibility

● Completion Date: 2006

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We st s id e Wa te r Qua lit y Im p rove m e nt Pro je c t

Project Highlights

Santa Monica

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La d e ra Pa rk Re g iona l Storm w a te r Ca p tu re Pro je c t

● Capacity: 5.1 acre-ft

● Drainage Area: 110 acres

● Estimated Cost: $10 M ● Components:

○ Pretreatment system

○ Re-irrigation system

○ Recreation & aesthetic enhancements

○ Demonstration garden

○ Educational signage

● Status: Design

● Completion Date: Fall 2019

Project Highlights

County of Los Angeles

● Capacity: 24 acre-ft

● Drainage Area: 578 acres● Estimated Cost: TBD

● Components:○ Capture & treat/divert to sewer

● Status: Feasibility Study● Completion Date: TBD

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La Cie ne g a Pa rk Proje c t & Fra nk Fe nton Fie ld

Project Highlights

Beverly Hills

● Capacity: 20 acre-ft● Drainage Area: 303 acres in Culver City

● Estimated Cost: $12-16M

● Components:○ Storage: 8 acre-ft

○ Treatment Volume: 11.66 acre -ft

○ Diversion to Harter Ave Drain

○ Diversion to Sepulveda Blvd Drain

● Status: Design

● Completion Date: Late 2020

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Culve r Bou le va rd Pro je c t

Project Highlights

Culver City

● Capacity: TBD

● Drainage Area: TBD

● Estimated Cost: $ 4 M

● Components:○ Infiltration BMPs

○ Transit and bicycle routes

○ Street lighting and furniture

○ Pedestrian safety/access

● Status: Planning/Concept

● Completion Date: Fall 2019

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Me lrose Ave Com p le t e St re e t Pro je c t

Project Highlights

West Hollywood

● Capacity: 9 acre-ft

● Drainage Area: 248 acres

● Estimated Cost: $9.8 M● Components:

○ Storm drain diversion○ Bioswales along 3 mile

stretch of median○ Treatment and reuse

○ Phase 1: 4 ac-ft / yr ($3.0 million)

○ Phase 2: 5 ac-ft / yr ($6.8 million)

● Status: Design

● Completion Date: Fall 2019

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Burton Wa y Me d ia n Gre e n St re e t Pro je c t

Project Highlights

Beverly Hills

● Capacity: 1 acre-ft

● Drainage Area: 13 acres

● Estimated Cost: $500 k● Components:

○ Infiltration

○ Treatment

○ Flood Control

○ 3200 ft of green street

● Status: Construction

● Completion Date: Fall 2018

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Sa nta Monic a Bou le va rd Gre e n St re e t s Pro je c t

Project Highlights

Beverly Hills

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Monte ith Pa rk & Vie w Pa rk Gre e n Alle y Storm w a te r Ca p tu re Pro je c t

Project Highlights

● Capacity: 9.3 acre-ft

● Drainage Area: 228 acres

● Estimated Cost: $3.7 M● Components:

○ Pretreatment system

○ Recreation & aesthetic enhancements○ Green alley with drought tolerant

landscaping○ 16 infiltration wells

○ Educational signage

● Status: Planning/Concept

● Completion Date: Fall 2021

County of Los Angeles

● Capacity: 7,700 cf● Drainage Area: TBD

● Estimated Cost: $9 M● Components:

○ Bioretention

● Status: Design

● Completion Date: 2019

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La Bre a Gre e n St re e t Pro je c t

Project Highlights

Inglewood

● Capacity: 300 acre -ft /year

● Drainage Area: 2,400 acres

● Estimated Cost: $5.4 M● Components:

○ Storm drain diversion

○ 2 parallel vegetated swales (1,400 ft )

○ Native vegetation

○ Restoration of riparian habitat

○ Educational signage

● Status: Design

● Completion Date: Fall 2020

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We stw ood Ne ig hb orhood Gre e nw a y Pro je c t

Project Highlights

Los Angeles

● Capacity: 0.23 acre-ft

● Drainage Area: 209 acres

● Estimated Cost: $600 K● Components:

○ 35 rain gardens

○ Replenishes groundwater through

infiltration

○ Beautification in DAC

○ Community education on LID

● Status: Completed

● Completion Date: 2017

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Unive rs it y Pa rk Ne ig hb orhood Ra in Ga rd e ns Pro je c t

Project Highlights

Los Angeles

● Capacity: TBD

● Drainage Area: 39 acres

● Estimated Cost: $3.7 M● Components:

○ Median biofilter

○ Green alley

○ Green street standard plans

○ Beautification in DAC

● Status: Design● Completion Date:

○ Phase I- June 2019

○ Phase II- February 2021

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Ve rm ont Ave . Storm w a te r Ca p tu re & Gre e n St re e t Pro je c t

Project Highlights

Los Angeles

Ba c te ria TSO

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3 Regional Projects:● LFTF-1 on Ballona Main Stem○ ≤ 6 MGD for ozone treatment

○ ≤ 23 MGD diversion to HWRP

● LFTF-2 on Sepulveda Channel○ ≤ 1.3 MGD for ozone treatment

● Mesmer LFD on Centinela Creek○ ≤ 1.0 MGD conveyed to HWRP

Design started May 2018.

EIR certified June 2018.

Estimated Cost: $31.3 M

Project Highlights

PROGRAM Highlights

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• CIMP Implementation• Measure CW

Wa te rshe d Monitoring

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● 5 new monitoring sites as a result of the CIMP:

○ 3 Stormwater Outfalls

○ 2 Non-Stormwater Outfalls

● 1 Shoreline Station

● 2 NSWO screenings of 2 sig. outfalls

Program Highlights

MonitoringType Frequency

Wet Weather Events 3x / year

Dry Weather Events 2x / year

Bacteria TMDL Weekly

Metals TMDL Monthly

Estuary Bed Sediment Annually

Mussel Tissue Annually

Fish Tissue Annually

Plastic Pellets Monitoring 2x / year

Me a su re CW Cu lve r City

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● The Clean Water, Clean Beach Parcel Tax passed in Culver City (November 2016)

● Set annual parcel tax for:○ Single family residential $99

○ Multi -family dwelling unit $69 ○ $1,096 per acre for

non-residential

● A dedicated funding for Culver City’s Water Quality Programs

● Measure V: Santa Monica

Program Highlights

Tha nk YouAny questions?susie.santilena@lacity.org

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