DISCUSSION AND POSSIBLE ACTION REGARDING
BEACH CITIES WATERSHED MANAGEMENT
GROUP’S ENHANCED WATERSHED
MANAGEMENT PROGRAM (EWMP) & REPORT ON
NEXT STEPS FOR IMPLEMENTATION
CITY COUNCIL MEETING
JULY 19, 2022
What is the Beach Cities EWMP?
• Planning document aimed at improving and protecting
the beach and other surface water quality
• Required by the Los Angeles County MS4 Permit
(“Stormwater Permit”)
• Collaborative effort among the Beach Cities Group
• Evaluates opportunities for multi-benefit projects
• If feasible, demonstrate full capture of a specified design storm
• If infeasible, demonstrate via a Reasonable Assurance Analysis (RAA) that all applicable water quality goals will be met
• First Beach Cities EWMP approved in 2016
Why Was the EWMP Updated?
• Stormwater Permit requires all EWMPs to be updated by June 30, 2021
• Significant advancements since the first EWMP:
• New county-wide RAA modeling tool
• Water quality and flow data collected by the Beach Cities Group (CIMP)
• Safe Clean Water (Measure W) funding availability
• Identification of new multi-benefit regional projects
City of Redondo Beach
• Fulton Playfield Infiltration Project
• Retrofit of underground detention basin to add infiltration • Addition of other beneficial elements (e.g., ocean-friendly gardens, exercise equipment)
• 26 acre-ft
• Target completion date: 2026
• Redondo Beach Herondo Distributed Infiltration Project • Implementation of a series of distributed infiltration BMPs (e.g., drywells, porous gutters, bioswales, etc.) within the Herondo (SMB 6-1) watershed. • 17.6 acre-ft
• Target completion date: 2026
• Beach Cities Green Streets Project
• On Anita St, near GoodmanAve.
• Residential areas along Belmont Ln, Pullman Ln, Ford Ave, Goodman Ave, and Steinhart Ave
• Currently in design
• Target completion date: 2026
Fulton
Playfield
Multi-Benefit
Infiltration
Project
K ey Pro j ec t B en efit
Water
Quality
Benefits
29 ac-ft 24-hour management capacity
81% Bacteria Removal
82% Trash Removal
A Beach Cities EWMP Project
Community
Investment
Naturebased
Solutions
✓ Flood Management
✓ Park Enhancement
✓ Recreational Opportunities
✓ Greening of School
✓ Heat Island Effect Reduction
✓ Mimic natural
process
✓ Imper. surface
removal
✓ Native vegetation
Fulton Playfield Multi-Benefit Infiltration Project
• Retrofit of underground detention basin to
add infiltration, treating 465 acres
• Addition of other beneficial elements (oceanfriendly gardens, exercise equipment) • 29 acre-ft stormwater
management capacity
• construction
<6 months
Beach Cities Green Streets Project Herondo Watershed
Beach Cities Green Streets Project
• 77 trees will be
planted in Redondo
as part of this
project
• Installation of up
21 dry wells
CURRENT PROJECT : BERYL STREET CIP PROJECT – GREEN STREET FEATURES Future Project: Glen Anderson Park Regional Project
Implement green stormwater infrastructures to
achieve regional water quality improvement goal
➢ Infiltration Drywells
➢ Bioretention Planters
➢ Tree Filter Cells
➢ Pedestrian Friendly ADA-Compliant
Pervious Surface Crosswalk
Project Footprint
Glen Anderson Park - Surface Site Layout
Surface
City of Redondo Beach
Redondo Beach Unified School District
1 2
1. Parking Lot Retrofit
– Pervious Pavement
– Tree Filter Cells
– Bioretention Planters
2. May Ave. Green Streets
– Pedestrian Friendly Pervious Surface
– Bioretention Planters
RECOMMENDATION:
RECEIVE AND FILE PRESENTATION REGARDING
BEACH CITIES WATERSHED MANAGEMENT
GROUP’S ENHANCED WATERSHED
MANAGEMENT PROGRAM & REPORT ON NEXT
STEPS FOR IMPLEMENTATION
THANK YOU
QUESTIONS?