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HomeMy WebLinkAboutItem 10_11 PPP 12-05-18 Ops Committee - J-117 B Awards Lai 50, AN xi J-117B Out a I Low Flow Pump Station Construction Contract and Professional Construction Services Agreement LL ! rr► Project Elements • New Outfall Low Flow Pump Station • Four 300-hp, 40 million gallon per day pumps • New Plant Water Pump Station • Required for GWRS Final Expansion • Ocean Outfall Booster Station Rehabilitation • Four 2650-hp, 120 million gallon per day pumps • CenGen Switchgear replacement • SCADA System Upgrades (formerly P2-107) • New Industrial Control System Network • New Load Shedding System J =1 1 7B Project Area ( Plant 2 0 Ak 'd ............... 0 11 T r r '� T a Outfall Low Flow Pump Station and Plant Water Pump Station 1 N _,r4 L :iiON TO JUNCTION - FUTURE TFrSC _ EFFLUENT STRUCTURE SUPPLY LINE— 36'3TL SE _ ELECTRICAL I TRANSFORMERS 8' TL PW = _ I BATTERY ROOM HLC F'CI-'L4ib=1N IQ PSI VCPVC I NAOCL) ---- I COMMON _t_ 2 I P TW PLANT ELECTRICAL �= '-1-------- WATER ROOM ICI PIP PUMP STATInN — r0c0 84' STL li STRAINERS LUFLO f� PUMP -'g:HrF'Y��Tg1.lj_;: (t+ - STATION 4. 2'x12'PIPE CHASE RATED OR H-20 TRAFFIC LOADING I I v ♦♦ I I --21*00_ -- CONS* 18"STRM&INLET \` �� —— �• JOIN TO EXIST STRM SYSTEM �\` \\'\ �� 24'STL(PW�) k CONST 8'DI POTW ♦ WALL PENETRATION ka JOIN TO EXIST POTW SYSTEM ♦♦♦ BELOW GRADE OOBS Rehabilitation • Rehabilitate 4 of 5 pumps, - - remove fifth pump • Rehab ancillary facilities � '; • Replace electrical equipment and switchgear -�-° CenGen Switchgear Replacement _ _ _ _ _ _ _ CENTRAL GENERATIONSWITCH_GEAR • Existing switchgea r _ BNsA BusGl BusG2 Bus I . 11_ _ . _ _ - - - - - nearing end of life Loads 1 Central Generatorss s Loads OCEAN OUTFALL BOOSTER STATION SWITCHGEAR • Addresses critical �- � - � - � - � -BuSA �_- � - � - � - � �- � - � - � -_� BusB- � - � - � - � L . _ . _ . _ . _ . _ _ I _ . _ . _ . _ . _ - single point of failure 1 2 EPSASTANDBYPOWER 3 4 °OBs o 0 0 0 °°Bs • Well suited for - - - - - - - - - - (4)2MW — . - . - . - . - . - - - - - - - - - -- Bus A Bus B included in same L - - - - - - - - - - - - - - - ' _ _ . _ . _ . _ . _ . _ . _ . _ . ; 1 2 0 0 3 ° 0 0 contract as O O B S LOW FLOW PUMPS PLANT WATER PUMPS LOW FLOW PUMPS PLANT WATER PUMPS Rehab P2 =1 07 SCADA System Upgrades • Monitoring and control of power distribution equipment • New fiber backbone for Industrial Control System network • Plant-wide loading shedding network • Contractor-provided hardware sole-sourced to Schweitzer Engineering Laboratories • Network configuration and programming by Schweitzer Engineering Laboratory through Professional Services Agreement Schedule C=r Mr Construction Award Dec 2018 OCWD's GWRS rt uompletiuii Dec 2022 Plant Water Pump Station Complete Aug 2023 Contract Final Completion July 2024 Bid Tabulation . . - Bid Amount Engineer's Estimate $90,772,263 Schimmick Construction Co., Inc. $90,200,000 PCL Construction, Inc. $96,899,792 Flatiron West, Inc. $99,858,000 Kiewit Infrastructure West Co. $110,248,000 OHL USA, Inc. $117,100,000 aV S MI i> 4 � N 9 n h �cr/' TMF ENv\Po� Requ 'ired Board Professional Construction Services Agreement (Brown & Caldwell) $8,563,913 Dec 2018 Construction Contract $90,200,000 Dec 2018 Load Shedding Services (Schweitzer Engineering Laboratories) In negotiation TBD Builders All Risk Insurance (if needed) <$500,000 TBD Recommendations • Approve a Professional Construction Services Agreement with Brown and Caldwell to provide construction support services for Ocean Outfall System Rehabilitation, Project No. J -117, Outfall Low Flow Pump Station, Contract No. J-117B, for a total amount not to exceed $8,563,913; and • Approve a contingency of $856,391 (10%) Recommendations • Receive and file Bid Tabulation and Recommendation for the Outfall Low Flow Pump Station, Contract No. J-11713; • Receive and file Orange County Sanitation District's Notice of Intent to Award dated November 20, 2018; • Award a Construction Contract to Shimmick Construction Company, Inc. for the Outfall Low Flow Pump Station, Contract No. J-117B, for a total amount not to exceed $90,200,.000; and • Approve a construction contract contingency of $7,216,000 (8%).