Silicon Valley Clean Water Commission Meeting

May 12, 2016

Agenda Item 8A Flo-Beast Waste Receiving Unit

Agenda Item 8A Flo-Beast Waste Receiving Station

• Piloted Equipment –

Performance Successful

• Cleans FOG of inorganic

material

• Recommend purchase at

$185,082 (+ shipping)

• Lead time is 4-6 months

• Continue to use pilot unit in

the meantime

Agenda Item 8A Flo-Beast Waste Receiving Station

• Current FOG rate = $0.05/gal

• Grant funding will cover majority of purchase cost

Agenda Item 8A Recommendation

Approve Purchase of Enviro-Care Flo-Beast Waste Receiving Unit – $185,082

Agenda Item 8B Electrical-Instrumentation-Controls Consulting Services – Technical Edge

Agenda Item 8B Automation Consulting Services

Field Equipment sends info to PLCs

Field-Level PLCs reads equipment information and sends to HMI

computer

Operator responds to information from Control Room

Agenda Item 8B Electrical-Instrumentation-Controls Consulting Services – Technical Edge

• Technical Edge assists with all aspects

• Relieves need for a consulting firm

– Estimated project cost reductions >$200k

– Rate is $125/hr; comparable to $170-$190/hr

• Authorization Requested - $360,000

Agenda Item 8B Recommendation

Move approval of Task Order to Technical Edge for Automation Services - $360,000

Agenda Item 8C Emergency Force Main Repairs

Construction Contract Change Order

Agenda Item 8C Emergency Force Main Repair CCO

• Pipe replacement ongoing since November 2015

• Unforeseen conditions encountered:

– Unforeseen Utilities

– Isolation Gate and Emergency Connection

– Pump Discharge Manifold Compromised Pipe

Agenda Item 8C Emergency Force Main Repair CCO

Unforeseen Utilities • 30 utilities (vs 5) • Serves County and City • Crosses P.S. Site • Est. Cost = $310k

Agenda Item 8C Emergency Force Main Repair CCO

Isolation Valve Est. Cost = $96k

Emergency Connection Est. Cost = $66k

Pump Discharge Manifold

P#1 P#2 P#6 P#5 P#4 P#3

Agenda Item 8C Emergency Force Main Repair CCO

Discharge Manifold • Pipe Thicknesses Measured • Extremely Thin • Est. Cost = $460k

Pipe wall thickness measurements

0.07

0.09 0.07

0.31

0.31

Agenda Item 8C Emergency Force Main Repair CCO

• Additional Costs due to unforeseen conditions:

– Utilities - $310,000

– Isolation Valve - $162,000

– Discharge Manifold - $460,000

• Increase to contract cost = $932,200

• Less available contingency @ $200,000

• Total authorization requested = $732,200

Agenda Item 8C Recommendation

Approve Construction Contract Change Order to Force Main Emergency Repair - $732,200

Thank you

20

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Agenda Item 8B Conveyance System Program

Preliminary Design Authorizations

Agenda Item 8B Recommendation

Move approval of Task Orders for

Preliminary Designs Conveyance System Components Total Authorization of $8,406,883

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Agenda Item 8B Conveyance System Predesign

All Components Required

Collection Systems to

Pump Stations to

Gravity Pipe to

Lift Station to

Headworks to

Treatment Plant

Member Agency

Sewage to SVCW TP

Gravity Pipe

Pump Stations

Receiving Lift

Station

Headworks

Collection Systems

Agenda Item 8B Conveyance System Predesign

• CEQA Status

– Public Comments on NOP minimal and routine

– Minimal risk for major project description changes

• Risks of Non-Action

– Conveyance system failures

– Higher costs: • SRF vs Bonds

• Payback on planning loan accelerated

• Construction inflation

Agenda Item 8B Conveyance System Predesign

Risks to Delay • Conveyance system failures

– In past 4 years, 7 pipe leaks (4 not on 48-in FM) and 2 pump station failures

– Effectiveness of “Bandage” fixes is diminishing

• Higher cost impacts

– SRF monies over-subscribed • If projects are not funded via SRF, over a 30-year term, this adds $234

million in nominal debt service payments (= NPV of $108 million)

– Planning loan repayment shortens to 10 years (vs 30 years) • Affects user rates

– Ongoing repairs to failing facilities

Agenda Item 8B Conveyance System Predesign

• Recommendations to move program forward:

– Allow Program to move into Preliminary Design

– Allow Final Design to proceed • If necessary, hold until Commission approves bidding

• If necessary, capture EIR mitigation measures

– Immediately begin preparing SRF loan application • Including approaching member agency staff for finance package

approvals