FROM: Robert Thompson, General Manager
Originator: Mike Dorman, Director of Engineering
SUBJECT:
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HEADQUARTERS COMPLEX AT PLANT NO. 1, PROJECT NO. P1-128
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GENERAL MANAGER'S RECOMMENDATION
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RECOMMENDATION: Recommend to the Board of Directors to:
A. Approve a project budget increase of $1,500,000 for Headquarters Complex at Plant No. 1, Project No. P1-128 for a new total project budget of $171,000,000; and
B. Approve a contingency increase of $1,538,175 (1.5%) to the existing construction contract with Swinerton Builders for Headquarters Complex at Plant No. 1, Project No. P1-128A, for a total contingency of $6,665,424 (6.5%).
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BACKGROUND
The Orange County Sanitation District (OC San) is constructing a new Headquarters Building under Project No. P1-128A. The new Headquarters Building will house administrative, technical, and engineering staff. Construction started in July 2021 and is scheduled for completion in mid-2024. The construction is approximately 98% complete.
RELEVANT STANDARDS
* Ensure the public's money is wisely spent
* Provide a safe and collegial workspace
PROBLEM
As construction nears completion, the projected cost of change orders to the construction contract is nearing the Board approved contingency amount. The changes to date have largely been related to design changes, unknown conditions, utility conflicts, and compliance with outside agency requirements that were not anticipated.
Examples of these large changes that were not anticipated include: (1) waterline conflicts during the installation of a new storm drain along Ellis Avenue; (2) implementation of a distributed antenna system which is required by police and the fire department; (3) change to night work by the City of Fountain Valley for all work along Ellis Avenue due to conflicts with the on-going nearby 405 freeway Caltrans/OCTA construction project; and (4) structural framing support changes that were omitted in the d...
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