Title
Proposed Change Order No. 2
GLWA-CON-183
Detroit River Interceptor Construction
(CIP# 222002)
Body
Agenda of: February 27, 2019
Item No.: 2019-043
Amount: Original Contract Price $ 2,159,925.00
Change Order No. 1 2,424,009.90
Change Order No. 2 0.00
New Contract Total $ 4,583,934.90
TO: The Honorable
Board of Directors
Great Lakes Water Authority
FROM: Sue F. McCormick
Chief Executive Officer
Great Lakes Water Authority
DATE: February 6, 2019
RE: Proposed Change Order No. 2
Contract No. GLWA-CON-183
Detroit River Interceptor Construction
Vendor: Inland Waters Pollution Control, Inc.
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-183 Change Order No. 2 "Detroit River Interceptor Construction" with Inland Waters Pollution Control, Inc., at a cost not to exceed $4,583,934.90 with an increased duration of 161 days for a total contract duration of 578 days; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.
BACKGROUND
The GLWA Wastewater Conveyance System consists of a network of sewers which collect and transfer wastewater through major interceptors to the Water Resource Recovery Facility (WRRF). There are three major interceptors - Detroit River Interceptor (DRI), North West Interceptor (NWI), and North Interceptor East Arm (NIEA). The DRI runs parallel to the Detroit River. The pipe size varies from 8 ft. to 16 ft. in diameter and carries about 36% of the total flow to the WRRF. The NWI runs parallel to the Rouge River. The pipe sizes are up to 13.5 ft. and carries about 35% of the flow. The NIEA is 15 miles long. The pipe size varies from 12 ft. to 17.5 ft. and it carries about 29% of the flow.
The DRI is the oldest of the three interceptors, constru...
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