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Proposition O –Clean Water BondProjects Update(CF 10‐0221‐S1)
Mar Vista Recreation Center Stormwater ProjectPenmar Park Stormwater ProjectWestchester (LAX Northside) Stormwater Project
December 5, 2012
Purpose
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Respond to Council Motion ‐ CF 10‐0221‐S1 (Rosendahl – Reyes)Address issues raises by Channel 2 CBS NewsUpdate on optimization at Mar Vista Project
Prop O has Extensive Oversight
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Administrative Oversight Committee (AOC) –Meets monthlyCitizen Oversight Advisory Committee (COAC) – Meets Monthly
Mar Vista Park Stormwater BMPLocated Near Sawtelle Blvd. and Palms Blvd.
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Project Purpose and Benefits
Comply with water quality standards.Reduce stormwater trash and bacteria pollution entering Ballona Creek and Santa Monica Bay.Reuse water where feasible.
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New innovative project – in need of extensive optimization.
270 acre watershed tributary area consisting of high‐density residential and commercial corridor.
Treatment Train:Trash collection, hydrodynamic separator, retention chamber, and disinfection facility.
Storage tank of 260,000 gallons.
Mar Vista Project Description
STORMWATER FLOW AND TREATMENT
Trash racks
Separator
Storage TankDisinfection Building
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TOTAL BUDGET $4.46 M‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐Multiple Sources of Funding:•Federal ARRA $1.78 M•State Water Resources $0.30 M•City LA Prop O $1.23 M‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐TOTAL COST $3.31 M‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐TOTAL SAVINGS $1.15 M
Project Savings of $1.15 million by leveraging other funding resources
Mar Vista Project Budget and Savings
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Mar Vista Project Issues
Facility was shutdown due to safety concernsSingle sample showed high bacteria levelsNo reuse of waterEligibility for reimbursement from State
Disinfection Building.
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Optimization & Corrective Actions
Implementing enhanced safety measures for Disinfection Building.Developed Standard Operating Procedures and training.Facility to be back online January 2013 Disinfection Building.
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Installed storage for chlorine tables outside the building to minimize exposure to chlorine fumes. Project uses solid chlorine tablets for disinfection.
Tablets stored in tubs and in locked blue container outside the building.
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Optimization & Corrective Actions
Installed a portable eyewash. Portable eyewash has fresh water to flush eyes if exposed to chlorine. Permanent system is being installed.
Portable eyewash
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Optimization & Corrective Actions
Installed a mechanical fan to improve ventilation and air circulation in disinfection building.
New fan
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Optimization & Corrective Actions
Improved access to building to eliminate obstructions and trip hazards.
Some pipes will be re-located
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Sides of the building were opened
Optimization & Corrective Actions
High Bacteria Level
Single sample is March 2012 showed high bacteria levels.This is expected since disinfection system was offline due to the safety issues.Project’s primary goal is to address bacteria in runoff.
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Mar Vista Project Water Use
Reuse was not included in initial project due to lack of reuse guidelines.With new guidelines in place, a second phase is being designed to use clean water will be use for park irrigation by July 2013.
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Eligibility of Reimbursement from State
Cost was fronted from City’s Prop O funds.State conducted final inspection and accepted the project in September 2011.State provided close out letter That City fulfilled all grant requirements in July 2012.State provided final reimbursement in September 2012.Correction underway are part of any normal construction project. 17
Penmar Stormwater Project
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Penmar Stormwater Project Status
March 2007: Concept Report prepared by Bureau of Sanitation
November 2008: Pre‐design Report prepared by Brown and Caldwell and Bureau of Engineering
July 2010: Construction began
October 2012: Formed Start‐up team
January 2013: Complete Construction
July 2013: Schedule of post‐construction to complete
January 2012 – September 2015: Phase II work to provide disinfection system for beneficial uses at park.
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Westchester Stormwater Project
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Westchester Stormwater Project Status
March 2007: Concept Report prepared by Bureau of Sanitation
July 2008: Pre‐design Report prepared by Geosyntec and Bureau of Engineering
Currently: LAWA working on agreement to transfer land to Bureau of Sanitation.
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