TO: Board of Supervisors
FROM: Steven Lederer - Director of Public Works
REPORT BY: Nate Galambos - Engineering Manager
SUBJECT: Approval of Contract Change Order to Construction Contract with Rainbow Waterproofing and Restoration Co. for Admin Waterproof Injection project, PW24-12.
RECOMMENDATION
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Approve and authorize a contract change order to the Admin Waterproof Injection, PW24-12 construction contract with Rainbow Waterproofing and Restoration Co. for a not to exceed amount of $14,950 to perform necessary work to prepare a basement wall to accept paint coating. (Fiscal Impact: $14,950 Expense; Property Management Fund; Budgeted; Discretionary)
[4/5 vote required]
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BACKGROUND
The Public Works' Property Management division has been managing minor water intrusion in select areas of the Administration building basement walls over the years with moderate success. However, the water intrusion in room B-20 (formerly Risk Management Services, but now occupied by PBES staff) that occurred this winter required work outside the scope of general maintenance.
Therefore, Public Works staff sole sourced a California Uniform Public Construction Cost Account Act (CUPCCAA) contract with Rainbow Waterproofing and Restoration Co. (Rainbow) for $30,465 to perform waterproof epoxy injection on the basement wall. Rainbow was sole sourced based on their unique, specialty service that has proven to be high quality and very reliable on their past projects performed on County facilities such as the Library, Hall of Justice elevator pit, and Jail kitchen floor, resolving water intrusion issues. In the past, the County has had difficulty attracting bidders for this type of work due to its specialty nature. For example, the County solicited bids for epoxy injection work on the Jail kitchen floor with 11 contractors showing interest and signed up to evaluate the project, however, only one contractor submitted a bid, Rainbow. The past work performed by Rainbow has resolve...
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