HomeMy WebLinkAbout07. (Handout) Construction Update on DP 7285Item No. 7
Construction Update:
Primary Renovations Project
DP 7285
February 11, 2014
Project Information
• NTP July 15, 2013
• 840 Calendar Days to complete all work
• Contractor, WM Lyles (General) and Steiny
(Electrical sub)
• Designer, HDR
• District staff - Clint Shima (PM), Noe Meza,
and Paul Fuentes
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Background
• Primary Tanks constructed in mid 60s and
early 70s.
• Scope of work:
— Replace grit system with new washers (Huber)
— Renovate primary equipment and scum thickener
— New MCC and electrical
— Rehab two Primary Effluent Pumps and install
VFDs
— Rehabilitation of existing primary effluent valve
Grit Washer
• Winter installation
• Huber Technology
• Two Units
(400 gpm /ea.)
• 304 stainless steel
Unloading grit equipment
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Grit Equipment
Coating Grit Piping
Screw Conveyors
Primary Sedimentation Tank
Equipment
• Starting in May 2014
• Replace 3W Sprays
• Replace scum skimmers
• Replace sludge shafts
and drives
• Install baffles
• Replace MCC and RIO
Panel
• Next winter replace
Walker Process Scum
Thickener
Temporary MCC
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Primary Effluent Pumps
• Two 600 -hp Flowserve
pump rehab
• Siemens Robicon VFD
• Pump equipment
scheduled to arrive
mid -April
VFD Room (Old Electric Shop)
Cogeneration Generator
The generator weighs 11 -tons and required electrical and mechanical work to allow
clearance. This is change order work.
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• Original Contract amount:
• Change Orders:
• Total Contract amount:
• Payment to WM Lyles:
$ 10,277,000
$ 29,124
$ 10,306,124
$ 1,310,000 (13 %)
• Original Schedule showed project spending
$ 2.9 million to 1/31/14. Actual spending is
$ 1.6 million. Construction off to slow start.
Questions?
2/10/2014
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