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HomeMy WebLinkAbout04.a. Receive presentation on pre-selection process for key equipment in support of the Solids Handling Facility Improvements Project Page 1 of 11 Item 4.a. Central Contra Costa Sanitary District June 20, 2018 TO: ENGINEERING AND OPERATIONS COMMITTEE FROM: NATHAN HODGES, SENIOR ENGINEER REVIEWED BY: EDGAR J. LOPEZ, CAPITAL PROJECTS DIVISION MANAGER JEAN-MARC PETIT, DIRECTOR OF ENGINEERING & TECHNICAL SERVICES SUBJECT: RECEIVE PRESENTATION ON PRE-SELECTION PROCESS FOR KEY EQUIPMENT IN SUPPORT OF THE SOLIDS HANDLING FACILITY IMPROVEMENTS PROJECT The Solids Handling Facility Improvements Project(Solids Project)will make improvements to nearly all solids handling processes found in the Solids Conditioning Building (SCB). These processes include sludge blending, dewatering, furnaces, and air pollution control equipment. Central San's design consultant, Black& Veatch, recently completed the 10-percent Pre-design phase and one of the outcomes of that effort was the recommendation to select critical equipment early in the Design phase. The equipment to be pre-selected are the centrifuges, cake pumps, and wet scrubbers. These specific pieces of equipment were identified in both the Comprehensive Wastewater Master Plan and Black& Veatch's pre-design as nearing the end of their useful life and in need of replacement.Also, in the case of the wet scrubber, the existing equipment will not meet upcoming regulations. Black& Veatch's recommendation to pre-select equipment brings advantages to the project: • Construction drawings and specifications will be based on the actual equipment • Utilizing 3D model will detect conflicts, confirm access, and maintain operation during construction • Improve cost estimates during design • Reduce change orders Black& Veatch and staff are finalizing the Basis of Design Memoranda and technical specifications for this equipment. The memoranda summarize the design objectives and document the performance criteria that will be used to select the equipment. The specifications will be included in the procurement documents. Staff has met, and continues to meet, with Legal Counsel to review the pre-selection process and ensure that selection complies with public procurement code. The centrifuges and cake pumps will be selected using an open request for proposal (RFP)followed by low-bid selection. The RFP will be posted on Central San's website, proposals will be evaluated against pre-established criteria, and those manufacturers that meet these criteria will move on to the final bid selection phase. Final selection of the centrifuges and cake pumps will be based on the lowest, responsive bid.A purchase order(PO)will be issued to the manufacturer only for the cost of up front engineering and shop drawings preparation. The June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 9 of 30 Page 2 of 11 equipment manufacturing, delivery, and payment will be assigned to the General Contractor. The wet scrubber is recommended to be procured via a sole source process.A position paper will be brought to the E&O Committee and the Board of Directors for authorization. If authorized, a PO will be issued to the manufacturer only for the cost of up front engineering and shop drawings preparation. The equipment manufacturing, delivery, and payment will be assigned to the General Contractor. Coordination of the front end documents for equipment selection and construction is critical so that there are no conflicts. Staff is working with Black& Veatch and Legal Counsel to ensure that Central San is protected. Staff has hired a third party consultant with extensive experience in construction document preparation to assist in the preparation of the front end documents. Jean-Marc Petit, Director of Engineering and Technical Services, will present a summary of the Solids Project Key Equipment Pre-Selection. GOAL TWO: Strive to Meet Regulatory Requirements Strategy 1 - Strive to Achieve 100% Permit Compliance in Air, Water, Land and Other Regulations GOAL THREE:Be a Fiscally Sound and Effective Water Sector Utility Strategy 2- Manage Costs GOAL FIVE:Maintain a Reliable Infrastructure Strategy 2- Facilitate Long-term Capital Renewal and Replacement ATTACHMENTS: 1. Presentation June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 10 of 30 Page 3 of 11 .�. w t. : , I.;.L SOLIDS HANDLING FACILITY IMPROVEMENTS PROJECT - DP 7348 KEY EQuIPMENT PRE-SELECTION Jean-Marc Petit ` Director of Engineering & Technical Services Engineering & Operations Committee June 20, 2018 5 4 4 MEETING PURPOSE • Present the equipment selection process • Present the equipment selection schedule Where Are We 4 Where Are We Going • Present technical items and approach .q: 2 :l CENTRALSAN 1 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 11 of 30 Page 4 of 11 RECOMMENDED IMPROVEMENTS FROM PRE= DESIGN EFFORT FOR SOLIDS HANDLING PROJECT 1 2 7 4 5 8 3 6 a imp 1 2 3 4 5 6 SLUDGE BLENDING/STORAGE LIMEADDITION CENTRIFUGE DEWATERING MULTIPLE HEARTH AIR POLLUTION SCBSEISMIC ASH HANDLINGAND EMERGENCY SLUDGE SYSTEM FURNACES CONTROL RETROFIT LOADOUT LOADOUT O Elements to be Pre-Selected 3 44!NL CENTRALSAN KEY EQUIPMENT TO BE PRE-SELECTED _M4 Centrifuges - �L � i (4) Cake Pumps O ll Air Pollution Control _- Equipment - Systems(2) 4 __ 5 z 4CENTRAL SAN =1 - EdR 2 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 12 of 30 Page 5 of 11 PROJECT SCHEDULE 544!- ' CENTRALSAN ANTICIPATED DESIGN AND CONSTRUCTION SCHEDULE Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Equipment Procurement RFP and Equipment Selection Equipment Procurement r Shop Drawings and Fabrication Final Design (30%60%9516,100%) Bidding Bid and Award Construction Installation and Commissioning Procurement Phase: January 2018—August 2019 Design Phase: April 2018—October 2019 Bid &Construction Phase: October 2019—December 2022 CENTRALSAN 3 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 13 of 30 Page 6 of 11 ANTICIPATED CASH FLOW FOR PROJECT .1refflMm a Enginer.,bB PrArnhary sign fN1o[Teming IL Ce"rel Sin MurjprnqML lb9MIN ■Con%iiImnr of ti gfijCdmlruuiarr Mans$cmrnr 1944Ll m - 6 ggWpmerit Prxur#m Ent 5 ')]Q F1'20V-1a if 20MIS P.T 201 0 N 2.0=1 FV 2021-22 FT 3022-23 7 CENTRALSAN ESTIMATED CASH FLOW FOR EQUIPMENT PRE—SELECTION Procurement FY 2017- FY 2018-19 FY 2019-20 FY 2020-21 FY 2021-22 Subtotals Centrifuges Procurement $ 285,000 1,282,500 $ 1,282,500 $ 2,850,000 Cake Pumps Procurement $ 180,000 $ 810,000 $ 810,000 $ 1,800,000 Wet Scrubbers Procurement $ 215,000 $ 967,500 $ 967,500 $ 2,150,000 Total $- $ 680,000 $ 3,060,0001 $ 3,060,0001 $ 6,800,000 \""" ,j Estimated Commitment 8 4 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 14 of 30 Page 7 of 11 PRE-SELECTION OF EQUIPMENT IMPROVES COLLABORATION AND DESIGN ACCURACY Customizes final drawings and specifications based on actual equipment Drives high quality design n Interference detection and avoidance "Walk through"for Central San review of operations access and maintenance space and hoisting provisions High level coordination with Electrical, _ - Instrumentations,and Controls Leverage 3D model to develop construction phasing and help maintain plant operations Facilitates cost estimating for final installation Reduces Change Orders 9 CENTRALSAN SLUDGE DEWATERING IMPROVEMENTS SCOPE New Dewatering Centrifuges Four new high efficiency centrifuges New Sludge Cake Pumps - - Four new cake pumps with flow metering Next Steps Prepare documents for procurement of dewatering centrifuges and cake pump. Final design based on selected equipment 4 _ 5 z 10 l CENTRAL SAN5 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 15 of 30 Page 8 of 11 AIR POLLUTION CONTROL IMPROVEMENTS New Wet Scrubbers New MHF Emergency Bypass Next Steps Prepare documents for procurement of P � , f wet scrubbers It FA Include elements in design layout for f potential additional modules that may be required by future regulations ° A a, CENTRALSAN - „ BACKGROUND Centrifuge and cake pump pre-selection Procurement of wet scrubber Combined RFQ-RFP document • Equipment selection progress summary rinrmw Questionnaires sent to vendors and responses received Completed Site visits and summary notes Draft Basis of Design Memos(BDM),Draft front end documents Completed,in CS review Draft technical Specifications(Division 1—16) Completed,in CS review Finalize BDMs Mid June 2018 Front end document workshop Mid/Late June 2018 Final equipment selection document Mid July 2018 Open SOQs and Bids Award Contract to selected manufacturers � 5 =.� 12 l CENTRALSAN6 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 16 of 30 Page 9 of 11 CENTRIFUGES AND CAKE PUMPS 0 0 4 0 O O� 1. Issue SOQ and Bids for equipment 2. Open Bid for qualified equipment only 3. Award to most qualified and lowest responsible manufacturer for four centrifuges and for four cake pumps 4. Issue PO for shop drawings only and pay when completed 5. Actual equipment purchase will be assigned to General Contractor for later manufacturing and delivery when needed based on bid price(*) V (*)adjusted for inflation 13 CENTRALSAN WET SCRUBBER EQUIPMENT © © O 1. Issue Sole Source for equipment: Envirocare 2. Award to Envirocare for wet scrubber equipment 3. Issue PO for shop drawings only and pay when completed 4. Actual equipment purchase will be assigned to General Contractor for later manufacturing and delivery when needed based on bid price(*) (*)adjusted for inflation 4 _ 5 z 14 1 : CENTRAL SAN 7 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 17 of 30 Page 10 of 11 NEXT STEPS AND RECOMMENDATIONS V 15 — CENTRALSAN NEXT STEPS Advertise procurement documents Bring Position Paper back to E&O Committee and Board of Directors for approval to sign purchase orders • Finalize Design of Phase 1 Solids Handling Facility Improvements Project: April 2018—October 2019 i I � j 5 16 e[l CENTRALSAN 8 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 18 of 30 Page 11 of 11 QUESTIONS? V 17 CENTRALSAN 9 June 20, 2018 Special EOPS Committee Meeting Agenda Packet- Page 19 of 30