CC 2015-11-10 Investment Analysis Presentation_Arroyo Grande_Draft_v2Presentation of
Investment Analysis for the Recycled Water Facilities Planning Study
November , 2015
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Presentation Overview
Project Background/Overview
Investment Analysis
Recommendations/Next Steps
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Project Background
SSLOCSD WWTP Redundancy Project
Additional reliability
Enhanced treatment for future permit requirements
Water Supply
Variable water supply reliability
Need for more resilient sources
Recycled water identified as priority initiative by NCMA TG
Permitting Challenges
Potential flood risk at existing WWTP
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Proposed Project
Evaluation of a Satellite Water Resource Recovery Facility
Potential to reduce size of Redundancy Project
Located outside the Coastal Zone
Close proximity to Ag demand
Recycled Water Facilities Planning Study (RWFPS)
Planning Grant
SSLOCSD & City of Arroyo Grande
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RWFPS Project Overview
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Investment Analysis
Evaluate preliminary SWRRF treatment and beneficial reuse alternatives
Estimate potential Redundancy Project cost savings
Compare unit costs with other supplemental supply options
Develop recommendations for RWFPS
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SWRRF Alternatives
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Agriculture Irrigation Alternatives
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Groundwater Recharge Alternatives
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Alternatives w/o Redundancy Savings
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Redundancy Project Savings
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Alternatives w/ Redundancy Savings
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Supplemental Supply Alternatives
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Conclusions
SWRRF unit cost estimates in high end of range with other potential supplemental supplies
Potential to realize Redundancy Project savings, but they do not significantly reduce RW unit costs
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Recommendations & Next Step
Based on input received from SSLOCSD Board and the NCMA TG it is recommended
Form a Sustainable Water Working Group to re-scope the RWFPS
Staff from SSLOCSD and NCMA agencies
Take advantage of existing grant funding
Leverage previous SSLOCSD recycled water evaluation
Identify a SSLOCSD project that aligns with SWRCB’s priorities for water sustainability
Putting wastewater to beneficial reuse and creating reliable supplemental source of supply
Incorporates the Redundancy Project requirements
Positions SSLOCSD for future funding opportunities (e.g. Prop 1, IRWM, SWRF, WRFP)
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Potential RWFPS Scope Elements:
Evaluate potential reuse projects
Existing WWTP
Permitting Feasibility
Offsite tertiary or advanced water treatment facility alternative
Regional opportunities to combine with Pismo RW Project
Outreach with agriculture representatives
Alignment with the Sustainability Groundwater Management Act
Coordination with Santa Maria Groundwater Basin Model Development
Funding & Financing screening and development of capture plans
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Questions?
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