FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
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DIGESTER P AND R DOME TENDON REPAIR, CONTRACT NO. P2-137A
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION:
A. Approve a Professional Construction Services Agreement with CDM Smith Inc. to provide construction support services for Digester P and R Dome Tendon Repair, Contract No. P2-137A, as part of Digesters Rehabilitation at Plant No. 2, Project No. P2-137, for a total amount not to exceed $209,000; and
B. Approve a contingency of $20,900 (10%).
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BACKGROUND
CDM Smith Inc. was selected as part of a competitive, qualifications-based solicitation process to design Digesters Rehabilitation at Plant No. 2, Project No. P2-137. At the time of the solicitation, the Orange County Sanitation District (OC San) documented its intent to award a subsequent agreement to the design consultant for continuation of engineering services during construction.
During design, it was discovered that immediate dome repairs were required for Digesters P and R; therefore, a separate contract, Contract P2-137A, was created as part of Digesters Rehabilitation at Plant No. 2, Project No. P2-137. The repairs involve adding a new post-tensioned tendon system to replace the corroded tendon system that supports the domes for Digesters P and R. To complete the repairs, conflicting utilities, and appurtenances on the exterior of the digesters need to be removed, damaged concrete around the dome base needs to be replaced, and new tendons need to be installed and tensioned.
RELEVANT STANDARDS
* Comply with California Government Code Section 4526 to engage the best qualified firm "on the basis of demonstrated competence and qualifications" and "negotiate fair and reasonable fees"
* Ensure the public's money is wisely spent
* Sound engineering and accounting practices, complying with local, state, and federal laws
PROBLEM
This project requ...
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