Title
Proposed Change Order No. 1
GLWA-CON-288
Electrical Tunnel Rehabilitation Lake Huron Water Treatment Plant
CIP# 111004 / BCE Score: 38.6
Body
Agenda of: June 26, 2019
Item No.: 2019-221
Amount: Original Contract: $3,888,000.00
Change Order No. 1: 0.00
Total Contract Amount: $3,888,000.00
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Sue F. McCormick
Chief Executive Officer
Great Lakes Water Authority
DATE: June 4, 2019
RE: Proposed Change Order No. 1
Contract No. GLWA-CON-288
Electrical Tunnel Rehabilitation at Lake Huron Water Treatment Plant
Vendor: Clark Construction Company
MOTION
Upon recommendation of Cheryl Porter, Chief Operating Officer - Water and Field Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Chief Executive Officer (CEO) to enter into Contract No. GLWA-CON-288 Change Order No. 1 "Electrical Tunnel Rehabilitation at Lake Huron Water Treatment Plant" with Clark Construction Company, at a cost not to exceed $3,888,000.00 for an increased duration of 157 days for a total contract duration of 522 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The primary power feed to the Lake Huron Water Treatment Plant (LHWTP) is provided through two redundant transformers referred to as Transformer Nos. T-1 and T-2. The first primary power feed is conveyed through a set of five existing medium-voltage cables that directly connect Transformer No. T-2 to the plant switchgear building. The second primary power feed is similarly conveyed through another set of five existing medium?-voltage cables that connect Transformer No. T-1 to the standby generators and the plant switchgear building. This routing configuration assures that in the event of total primary power loss to both transformers, that the standby generators are automatically activated, and the local switc...
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