rio hondo/san gabriel river (rh/sgr) water quality group revised ewmp and progress update · 2018....
TRANSCRIPT
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Rio Hondo/San Gabriel River (RH/SGR) Water Quality Group
Revised EWMP and Progress Update
May 10, 2018
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RH/SGR: Presentation Overview
• Managed dialogue surrounding MS4 Permit issues
• Embraced collaboration and transparency
• Observed water quality improvements
• Identified multi-benefit opportunities
• Adapted our EWMP into a more rapid, actionable plan
• Scheduled to meet clean water goals
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Introduction and History
Santa Anita Wash
Sawpit Wash
Rio Hondo San Gabriel River
Arcadia Wash
Little Dalton Wash
Big Dalton Wash
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Introduction and History
• The RH / SGR Water Quality Group includes 6 cities and LA County / LACFCD in foothills of the San Gabriel Valley
2013 2015 2016 2018 2020
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Green Streets
Regional
Enhanced MCMs
RedevelopmentLID
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EWMP Outcomes and Drivers to Adapt
• Our initial pathway to clean water (i.e., EWMP) included the following components:▪ Enhanced MCMs▪ Redevelopment LID▪ 10 regional projects▪ 436 miles of green streets
(80% of total cost)
• Initial Price Tag: $1.4B
How can we Adaptto Achieve Clean Water Faster and Cheaper?
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Regional Concerns About MS4 Permit
• Across the San Gabriel Valley, there have been widespread concerns from policy makers and local government jurisdictions regarding various elements of the MS4 Permit
• More specifically, those concerns have generally been related to the following items:
▪ Will implementation of the projects identified in the WMPs / EWMPs result in MEANINGFUL improvements to water quality?
▪ If the projects outlined in the WMPs / EWMPs are instituted, will the resulting water quality improvements be MEASUREABLE?
▪ Given the significant costs associated with constructing and maintaining the projects included in the WMPs / EWMPs, are plans actually ACHIEVABLE?
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Against That Backdrop… We Got To Work!
Collaborate, AdaptBetter EWMP• Meaningful Clean Water• Measurable Clean Water• Achievable Clean Water
EWMPClean Water… maybe???
Do Nothing
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We Started By Talking With The Regulators…
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…Which Evolved Into Further Discussions…
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…Resulting in Collaboration and Total Transparency with Members of the Clean Water Ecosystem!
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Efforts Engaged to Create an Ecosystem in our Region to Support Clean Water
• Additional efforts have been engaged to create regional support for clean water▪ Lobbied in Washington to
preserve WRDA grant for watershed restoration projects
▪ Revived Arboretum Work Group▪ Led watershed outreach events▪ Supported LID and urban
greening policies
• …but not everyone has been supportive.
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And Our Team Took Another Look At The Data
• Our group has been actively monitoring water quality through our Coordinated Integrated Monitoring Program (CIMP) framework
• The data we had collected illustrated improvements thanks to minimum control measures
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• Our group has been actively monitoring water quality through our Coordinated Integrated Monitoring Program (CIMP) framework
• The data we had collected illustrated improvements thanks to minimum control measures
• This new data was used to help drive the development of a new and enhanced watershed model
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And Our Team Took Another Look At The Data
TRASH METALS
SEDIMENT ORGANIC MATTER
IMPROVING IMPROVING
IMPROVINGIMPROVING
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A Convergent Pathway to Clean Water:Our Revised EWMP (rEWMP) Philosophy
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rEWMP
BetterBMP
Understanding
EngagedStakeholder
Input
EnhancedWatershed
Model
SmarterCompliance
Analysis
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Multi-Benefit rEWMP Outcomes
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Example Project: Arcadia Wash Ecosystem Restoration and Groundwater Recharge Project
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Multi-Benefit rEWMP Outcomes
SQUARE MILES MANAGED ACRE-FEET INFILTRATED PER YEAR
WATERSHED EDUCATION SITESACRES NEW HABITAT
32 1,632
7.3 3
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Clear Pathway to Cleaner Water: Rio Hondo
ConstructionDesign, Permitting, BidPlanningTimeline Legend
Enhanced Minimum Control Measures and Re-Development LID
2018rEWMP
2028Final Deadline
202450% Milestone
Continued Adaptive Mgmt
Rio Hondo Ecosystem Restoration Project and Arcadia Wash Water Conservation Diversion
$8.3M
$105M
2019 2020 2021 2022 2023 2025 2026 2027
$80.8M*Pollu
tant
Loa
d O
ver T
ime
PHASE 1PHASE 2
Distributed BMPs
$15.8MArcadia Wash Ecosystem Restoration and Groundwater Recharge Project
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Clear Pathway to Cleaner Water: San Gabriel River
ConstructionDesign, Permitting, BidPlanningTimeline Legend
Enhanced Minimum Control Measures and Re-Development LID
2018rEWMP
202035% Milestone
Continued Adaptive Mgmt
$2.5M$5.4M
2019 2021 2022 2024 2025
Pollu
tant
Loa
d O
ver T
ime Enhancements to Basin 3E at Santa Fe Spreading Grounds
$2.9M
Encanto Park Stormwater Capture Project
202365% Milestone
2026Final Deadline
PHASE 2PHASE 1
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Clear Pathway to Cleaner Water: Big Dalton Wash
ConstructionDesign, Permitting, BidPlanningTimeline Legend
Enhanced Minimum Control Measures and Re-Development LID
2018rEWMP
202035% Milestone
Continued Adaptive Mgmt
$11.4M
2019 2021 2022 2024 2025
Pollu
tant
Loa
d O
ver T
ime
Distributed BMPs
202365% Milestone
2026Final Deadline
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Next Steps and Ongoing Adaptation
• Expect to continue seeing improved water quality
• Pursuing rEWMP projects
• Upcoming actions:▪ Project feasibility studies▪ Continued outreach,
engagement, transparency▪ Collaborative adaptive
management studies
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Thank You
Gloria Crudgington, Monrovia City [email protected]
Oliver Chi, Monrovia City Manager([email protected])