HomeMy WebLinkAboutItem 10_11 PPP 12-05-18 Ops Committee - J-117 B Awards Lai
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J-117B Out a I Low Flow Pump Station
Construction Contract and
Professional Construction Services Agreement
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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
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Outfall Low Flow Pump Station and
Plant Water Pump Station
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FUTURE TFrSC _
EFFLUENT STRUCTURE
SUPPLY LINE—
36'3TL SE _ ELECTRICAL I
TRANSFORMERS
8' TL PW =
_ I BATTERY ROOM
HLC F'CI-'L4ib=1N IQ
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COMMON _t_ 2 I P TW
PLANT ELECTRICAL �= '-1--------
WATER ROOM
ICI PIP
PUMP
STATInN —
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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
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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
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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%).