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File #: 2018-989    Version: 1 Name:
Type: Resolution Status: Passed
File created: 11/6/2018 In control: Board of Directors
On agenda: 11/28/2018 Final action: 11/28/2018
Title: Proposed Change Order No. 1 GLWA-CON-183 Detroit River Interceptor Construction
Sponsors: Cheryl Porter
Indexes: Water Operations
Attachments: 1. GLWA-CON-183 CO 1 DRI Alignment Map
Proposed Change Order No. 1
Detroit River Interceptor Construction

Agenda of: November 28, 2018
Item No.: 2018-989
Amount: Original Contract $ 2,159,925.00
Proposed Change Order No. 1 2,424,009.90
Total Revised Contract $ 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: November 7, 2018

RE: Proposed Change Order No. 1
Contract No. GLWA-CON-183
Detroit River Interceptor Construction Emergency Repairs
Vendor: Inland Waters Pollution Control, Inc.

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. 1 "Detroit River Interceptor Construction" with Inland Waters Pollution Control, Inc., at an increased cost of $2,424,009.90 for a total cost not to exceed $4,583,934.90 and for an increased contract length of 5 months for a total contract duration of 14 months; and authorizes the CEO to take such other action as may be necessary to accomplish the intent of this vote.

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...

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