BOARD AGENDA MEMORANDUM
SUBJECT:
Title
Report of Bids Received and Award of Construction Contract to C. Overaa & Co., for the Santa Teresa Water Treatment Plant Air Wash Pipeline Replacement Project, Project No. 93764004, Contract No. C0662 (San Jose, District 7).
End
RECOMMENDATION:
Recommendation
A. Ratify Addenda No. 1, 2, and 3 to the Contract Documents for the Santa Teresa Water Treatment Plant Air Wash Pipeline Replacement Project;
B. Award the Construction Contract to C. Overaa & Co. in the sum of $1,457,000; and
C. Approve a contingency sum of $145,700 and authorize the Chief Executive Officer or designee to approve individual change orders up to the designated amount.
Body
SUMMARY:
The Santa Teresa Water Treatment Plant (STWTP) is the largest of Santa Clara Valley Water District's (Valley Water) three potable water treatment plants, delivering up to 100 million gallons of water per day to retailers, businesses, and residents within Valley Water's service area. The plant supplies most of South San Jose, including Almaden Valley, Blossom Valley and Santa Teresa. It also has ability to supplement the demands of Penitencia Water Treatment Plant when needed.
The objective of the STWTP Air Wash Pipeline Replacement Project (Project) is to extend the useful life and increase the reliability of the plant's water filtration system. The air wash system scours the debris off of the filter media allowing the filters to be systematically cleaned in an efficient manner.
The Project scope consists of the rehabilitation, removal and replacement of the existing air wash pipelines. This includes replacement of approximately 900 LF of above-ground 12-inch stainless steel pipe and relining of approximately 670 LF of underground 12-inch steel pipe at the east and west filter basins and galleries. Phasing of this work in two stages will be necessary to maintain water production.
Addenda Ratification
Three addenda (Attachment 1) were issued during the bid perio...
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