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File #: ID 19-0342    Version: 1 Name: Backwash CO
Type: Resolution Status: Passed
File created: 4/30/2019 In control: City Council
On agenda: 5/21/2019 Final action: 5/21/2019
Title: Resolution Approving Change Order in the Amount of $144,800 to Contract 2016-0580 with CDM Smith Inc. for the Mitchell Water Treatment Plant Filter Backwash Pump Replacement and System Improvements
Indexes: District 3, WR Contracts
Attachments: 1. BWP Amendment 1 Letter 2019-04-17.pdf, 2. MWBE Memo for 2015-079A Mitchell WTP Backwash Pump Amendment 1.pdf, 3. 19-0342 Resolution CO CDM 2016-0580.pdf
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Title
Resolution Approving Change Order in the Amount of $144,800 to Contract 2016-0580 with CDM Smith Inc. for the Mitchell Water Treatment Plant Filter Backwash Pump Replacement and System Improvements

Body
Department: Water Resources
Council District: 3

Public Hearing: N/A
Advertising Date/By: N/A

Contact 1 and Phone: Steven D. Drew, 336-373-7893
Contact 2 and Phone: Kristine Williams, 336-373-2656

PURPOSE:
Water Resources is requesting a change order to contract 2016-0580 related to the Mitchell Water Treatment (WTP) Plant Filter Backwash Pump Replacement and System Improvements project to provide additional design services and construction administration tied to the construction of electrical improvements and upgrades at the Mitchell WTP. In order to provide adequate design services, approval of a contract change order is requested.

BACKGROUND:
The City authorized professional services contract 2016-0580 with CDM Smith Inc., in the amount of $364,500, on August 16, 2016 to provide design services for Mitchell Water Treatment Plant Filter Backwash Pump Replacement and System Improvements project. The existing backwash pumps at the Mitchell WTP are reaching the end of their useful service life and the accessibility to the pumps in the lower level of the filter plant for maintenance purposes is challenging. The filter backwash system is a key component in the treatment process to purify water for potable use. The gravity media filters remove impurities and use backwash pumps to provide the motive force for cleaning the media by removing the trapped impurities.

Change Order No. 1 includes additional coordinating efforts and engineering design work associated with combining this project with the Mitchell Major Electrical Improvements project. The length of construction has been extended which increased the need for contract administration which was included in the original proposal. The construction administration and inspection team for the filter b...

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