rio hondo/san gabriel river water quality group...san gabriel river = lead determine required...

18
Introducing our EWMP Rio Hondo/San Gabriel River Water Quality Group A presentation by:

Upload: others

Post on 27-Aug-2020

2 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Introducing our EWMP

Rio Hondo/San Gabriel River Water Quality Group

A presentation by:

Page 2: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Proposed control measures

Background Water quality priorities

Overview

Early action projects Cost and potential funding strategies Outreach events Local support

Page 3: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Our Water Qual i t y Group’s S tory

Presenter
Presentation Notes
Discuss location of the group and that it is located within two major watersheds. Discuss why this group formed (foothills versus coastal – can monitor before it hits the beach) -Sawpit is our ocean -Group supports clean water/environment
Page 4: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Water Quality Priorities

We capture pollutant with the highest load or

that is most difficult to treat

All other water quality priorities are addressed

Limiting Pollutant Concept

Then

If

Limiting Pollutants

Los Angeles River = Zinc San Gabriel River = Lead

Page 5: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Determine required

volume/load reduction

Select and implement

control measures

Collect monitoring

data through CIMP

Calibrate model using water quality

data

Control Measures and RAA

Presenter
Presentation Notes
Used LSPC component of WMMS. Calibrated hydrologic parameters along with water quality parameters. Verified calibration by comparing modeled values to historical data. Required load/volume reduction is based on the 85th percentile, 24-hour storm event or the 90th percentile load event Use this slide to discuss lack of monitoring data
Page 6: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Proposed Control Measures

Presenter
Presentation Notes
Discuss regional BMP implementation schedule Complete all projects in LAR Watershed before first milestone (50% metals in 2024) Complete 2 projects in SGR Watershed before second milestone (35% metals in 2020) and 2 before next milestone (65% metals in 2023) Note first deadline is in 2017 (10% metals) – address with distributed BMPs
Page 7: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Subsurface Infiltration

Baldwin Lake Aboveground Infiltration

Recreation Park Sierra Vista Park

Royal Oaks Trail (LAR) L. Garcia Park

Eisenhower Park

Arboretum of LAC LADWP Easement

Encanto Park Memorial Park

Royal Oaks Trail (SGR)

Example Regional BMPs

Page 8: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Regional BMPs – Arboretum of LAC

Presenter
Presentation Notes
Discuss potential partnerships and support. Emphasize multi-benefits (recreation, education, stormwater, etc.)
Page 9: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Early Action Projects Monrovia Station Square

Detention Basin Permeable Pavers Green Streets Permeable Sidewalks

Storm Chambers

Presenter
Presentation Notes
Monrovia Station Square/Transit Village Multi-Benefit Park and Greenway Project – estimated to be completed by fall 2015 Also drought resistant plants near Caltrans ROW and storm drain vaults installed along Duarte (close to 210 Freeway)
Page 10: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Early Action Projects Azusa Metro Gold Line

Presenter
Presentation Notes
Metro Gold Line infiltration project
Page 11: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Early Action Projects Arcadia City Hall Parking Lot

Presenter
Presentation Notes
This project went above and beyond the early action projects identified in the NOI (Monrovia and Azusa only)
Page 12: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Early Action Projects Sierra Madre Dry Wells

Presenter
Presentation Notes
Drywells and landscaping in Sierra Madre This project went above and beyond the early action projects identified in the NOI (Monrovia and Azusa only)
Page 13: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Committed to Implementation

EWMP + CIMP Development

$790,000

3 years of CIMP Implementation

$2,371,580

$3,161,580+ Invested

LID Ordinances

Green Street Policy

Trash Screens

Early Action Projects

Presenter
Presentation Notes
CIMP monitoring will cost more after the first three years
Page 14: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Implementation Cost

776 acre-feet of capture = 3 Rose Bowls

$0

$20

$40

$60

$80

$100

$120

$140

$160

$180

$200

2016 2018 2020 2022 2024 2026 2028 2030 2032 2034 2036 2038 2040 2042

Ann

ual C

ost

(Mill

ions

)

Implementation Year

Annual Cost for RH/SGRWQG EWMP Implementation

Capital Cost O&M CostAll costs subject to change based on conceptrevisions and green street implementation modifications.

$1.4 Billion (Capital Cost)

Page 15: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Funding Strategies

GRANTS LOANS FEES & CHARGES

LEGISLATIVE & POLICY

PARTNERSHIPS INVESTMENT OPPORTUNITIES

Presenter
Presentation Notes
Grants – Prop 84, Prop 1B Loans – Clean Water State Revolving Fund, Infrastructure State Revolving Fund Fees and Charges – Mitigation Bank, Stormwater Utility Fee, Increase Taxes Legislative and Policy – Lobby MWD to evaluate LRP management, pursue pollutant source control (like SB 346) Partnerships – private, public Investment Opportunities – WER study to reduce required implementation
Page 16: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Outreach Events May 5, 2014

39 Participants LACDPW

March 9, 2015

95 Participants Arboretum of LAC

Presenter
Presentation Notes
Outreach events were held in collaboration with the Upper SGR groups and included NGOs, assembly member representatives, Regional Board staff, other interested stakeholders, news reporters, and consultants Allowed interested stakeholders to comment on project selection process and concepts
Page 17: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Local Support

Members have been authorized to submit the

EWMP and are committed to doing what can feasibly be

afforded

Presenter
Presentation Notes
Discuss adoption of LID ordinances and green street policies
Page 18: Rio Hondo/San Gabriel River Water Quality Group...San Gabriel River = Lead Determine required volume/load reduction Select and implement control measures Collect monitoring data through

Questions? Any