Wastewater Treatment Plant Preliminary Engineering Contract Amendment No. 6
Purpose The purpose of this agenda bill is to seek City Council’s approval of Amendment Number 6 to the Consultant Agreement with Carollo Engineers for preliminary design of the new Wastewater Treatment Plant in the Windjammer Vicinity. 2 3/19/2013
Project Need Existing treatment facilities are outdated and nearing capacity. Increasingly stringent water quality standards Both outfalls have major problems Marsh surrounding lagoons reclaimed in 2009 Requirement of National Pollution Discharge Elimination System (NPDES) permit 3 3/19/2013
Project Goals Provide reliable wastewater treatment Meet high water quality standards Phasing opportunities Deliver a plan that keeps on track to start the new treatment plant by the end of 2017 4 3/19/2013
Objective of Preliminary Design Complete Value Engineering Finalize Location of WWTP within the Windjammer Vicinity Procure Major Process Equipment Membranes UV disinfection 30 % Design Delivery Method Design / Bid / Build Design Build General Contractor / Construction Manager (GC/CM) 5 3/19/2013
Project Team Subconsultant Role ESA Environmental / Cultural Enviroissues Public Meeting Support Michael Willis Architects Architectural GeoEngineers Geotechnical Design Bruce Dees & Assoc Landscape Design Webster Environmental Odor Control Cosmopolitan Engineering Outfall Design Harmsen Associates Survey 6 3/19/2013
City Contract Responsibility City Retains Control Over the Following Contracts Value Engineering Facilitator and T eam Property Acquisition Expert Cultural Resource Investigator Parks / Open Space Planner Transportation Planner Commercial Real Estate Advisor Charrette Facilitator GC/CM Advisor 7 3/19/2013
Scope of Services Task 100 – Project Management Management Plan Monitoring and Reporting Management Meetings Task 200 – Value Engineering (VE) Support Conceptual level design Participation in VE workshop Recommendations 8 3/19/2013
Scope of Services Task 300 – Public Process Support Participation in charrettes Workshops Working groups City Council Task 400 – WWTP Preliminary Design Major equipment procurement Membranes UV Disinfection 30% design documents 9 3/19/2013
Scope of Services Task 500 – Project Delivery Analysis Provide comparison of delivery methods Task 600 – Outfall Design 100% design of new outfall Permitting Task 700 – Management Reserve Allows City Engineer to make minor adjustments as needed 5% of contract amount 10 3/19/2013
Summary by Task Task Cost Task 100 – Project Management $69,978 Task 200 – Value Engineering Support $289,417 Task 300 – Public Process Support $198,610 Task 400 – WWTP Preliminary Design $964,416 Task 500 – Project Delivery Analysis $14,498 Task 600 – Outfall Design $262,363 Carollo Fee $159,152 Subconsultant Markup $23,650 Subtotal $1,982,065 Task 700 – Management Reserve (5%) $99,103 T otal $2,081,168 11 3/19/2013
Summary by Activity Task Cost “Traditional” Preliminary Design $1,511,644 Additional Services -Value Engineering $60,698 - Public Process $130,037 - Outfall Design and Permitting $279,686 Subtotal $470,421 Management Reserve $99,103 T otal $2,081,168 12 3/19/2013
Project Schedule 13 3/19/2013
Facilities Plan Project Schedule Preliminary Design Final Design Construction Start up 14 3/19/2013
Project Schedule 15 3/19/2013
Verification of Scope and Cost Industry Guidelines Water Environment Federation (WEF) WA Office of Financial Management 2012 CA Multi-Agency CIP Benchmarking Study Similar Projects Other MBR treatment plants in our region Other City Projects Gun Club Road North Reservoir SE Pioneer Way 16 3/19/2013
Verification of Scope and Cost Studies Typically Address Total Cost Preliminary Design = $2,081,168 Final Design = TBD Total = 10% of Total Construction Cost 17 3/19/2013
Total Design Cost California Multi-Agency Benchmarking Study – 2012 San Francisco Sacramento Oakland San Jose Los Angeles Long Beach San Diego 18 3/19/2013
Studies 19 3/19/2013
Total Design Cost Similar Projects Gallons per Day vs. % of Total Construction Cost (TCC) 18.0% Shelton 16.2% % of Total Construction Cost (TCC) 16.0% 14.0% King County Blaine 12.0% 10.9% 10.7% Everett 10.0% 10% 10.7% Oak Harbor Salem 8.0% 8.0% Bellingham 6.6% 6.0% 4.0% 2.0% 0.0% 0 20 40 60 80 100 120 140 160 180 Millions of Gallons per Day (GPD) 20 3/19/2013
Summary of Design Costs Preliminary Design = $2,081,168 Total Costs Estimated T otal Construction Cost = $60 to $67 million Design Cost = ±10% of T otal Construction Cost Design Cost = $6 to $6.7 million Final Design Contract = $4 to $4.7 million Approximately 1 year from now 21 3/19/2013
Summary Tasks include “Traditional” and supplemental services Does not include contracts where it is in the City’s best interest Design cost is included in “$93.5 million” Design Effort Cost Timing Preliminary Design $2,081,168 Today Final Design $4 to $4.7 million 1Year Total $6 to $6.7 million 22 3/19/2013
Funding Water Fund Included in current rate structure 23 3/19/2013
Requested Action A motion to authorize the Mayor to sign Consultant Agreement Amendment Number 6 with Carollo Engineers in the amount of $2,081,168 for preliminary design related to a new wastewater treatment plant. 24 3/19/2013
25 3/19/2013
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