HomeMy WebLinkAboutUtilities 2009-05-27 Item 3C - Change Order #5 - Standby Power Upgrades Year One with Ebenal GeneralCity of Tukwila
To: Mayor Haggerton
Utilities Committee
INFORMATIONAL MEMORANDUM
From: Public Works Director
Date: May 14, 2009
Subject: Standby Power Upgrades —Year One
Project No. 06 -BG01, Contract 08 -086
Change Order No. 5
ISSUE
Approve Change Order No. 5 to Contract Number 08 -086.
BACKGROUND
Jim Haggerton, Mayor
Ebenal General, Inc. was awarded the construction contract for the Standby Power Upgrades
Year One Project and Notice to Proceed was issued October 6, 2008. This contract was for four
standby generators to be installed at City Hall and Fire Stations 52, 53 and 54 for $480,000 plus
sales tax with a 10% contingency of $52,300.
The Fire Stations generators have been installed and tested with four change orders totaling
$14,742 (without tax). Upon closer analysis of the proposed City Hall generator location on the
west side of City Hall, it was discovered that the site was within a stream buffer and would
require a significant amount of mitigation.
ANALYSIS
It was determined that a new City Hall site, not located near the stream, was needed. Several
new sites were evaluated and design plans were revised with a location on the sloped lawn area
in front of City Hall, however, the costs associated with that site were extremely prohibitive. A
final site was chosen in the furthest west parking stall of the lower City Hall parking lot (near the
lunchroom deck). This is the closest feasible location to the existing electrical facilities.
After negotiations with Ebenal General, Change Order No. 5 will add $50,565.03 and 76
calendar days to the original contract. The new contract total will be $545,307.03 (without sales
tax). The cost increase for all change orders is over the authorized 10% construction
contingency of $52,300 and Change Order No. 5 will require Council approval.
RECOMMENDATION
The Council is being asked to approve Change Order No. 5 for the Standby Power Upgrades
Year One Project with Ebenal General, Inc., in the amount of $50,565.03 for consideration at
the June 8, 2009 Committee of the Whole meeting and subsequent June 15, 2009 Regular
Meeting.
Attachment: Change Order No 5
W \PW Eng\ PROJECTS \A- BG Projects \068G01 Stand -by Power Upgrade \Construction \Ebenal \Info Memo CO P5 CH 5 -14 -09 Final doc