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File #: 2021-478    Version: 1 Name:
Type: Resolution Status: Passed
File created: 12/1/2021 In control: Board of Directors Workshop Meeting
On agenda: 12/8/2021 Final action: 12/8/2021
Title: Proposed Amendment No. 1 Contract 1802543 Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines CIP # 211008
Sponsors: Navid Mehram
Indexes: Wastewater Operations


Proposed Amendment No. 1

Contract 1802543

Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines                     

CIP # 211008



Agenda of:                     December 8, 2021

Item No:                     2021-478

Amount:                     Original Contract Price                                           $2,322,045.00

Proposed Amendment No. 01                                     0.00

New Contract Total                                                                $2,322,045.00


TO:                     The Honorable

                     Board of Directors

                     Great Lakes Water Authority


FROM:                     Suzanne R. Coffey, P.E.

                     Interim Chief Executive Officer

                     Great Lakes Water Authority


DATE:                     December 1, 2021


RE:                                          Proposed Amendment No. 1

                     Contract No. 1802543

                     Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines

                     Vendor:  Hazen & Sawyer



Upon recommendation of Navid Mehram, Chief Operating Officer - Wastewater Operating Services, the Board of Directors (Board) of the Great Lakes Water Authority (GLWA), authorizes the Interim Chief Executive Officer (ICEO) to enter into Contract No. 1802543 Proposed Amendment No. 1 “Rehabilitation of Ferric Chloride Feed System at PS-1 and Complex B Sludge Lines” with Hazen & Sawyer, with no increase in cost, for a total cost not to exceed $2,322,045.00, and an increased duration of 438 days for a total contract duration of 1,415 days; and authorizes the ICEO to take such other action as may be necessary to accomplish the intent of this vote. 


Hazen & Sawyer was awarded the original contract with a start work date of May 22, 2019, for a total contract amount not to exceed $2,322,045.00 for a duration of 976 days. The main objective of the Hazen & Sawyer contract was to provide design and construction assistance services for a new Ferric Chloride feed system originating in PS-2 and PS-1, and rehabilitation of SCB-30 Thickened Waste Activated Sludge (TWAS) Line which conveys liquid sludge from Complex B to Complex A at WRRF. The current final completion date of contract 1802543 for Hazen & Sawyer’s engineering services is January 21, 2022.

On April 5, 2021, Weiss Construction, LLC was given the Notice to Proceed on the associated construction Contract No. 2002190, which is the contract to construct the design completed by Hazen & Sawyer described above. This construction contract (2002190) has a duration of 24 months, with an established final completion date of April 5, 2023.


A time extension is needed to provide the required engineering services for the remaining construction contract time associated with Contract No. 2002190, which is ongoing between PS-2 & PS-1, and Complex A & Complex B at WRRF.

Contract No. 2002190, which is the construction contract for the new Ferric Chloride feed system is expected to reach final completion by April 5, 2023. The contractual substantial completion date for Contract No. 2002190 is established as of October 5, 2022.

It is GLWA’s recommendation  to extend the final completion date of Contract No. 1802543 from January 21, 2022, to April 5, 2023, to match the associated construction contract. Hazen & Sawyer submitted a time extension request and a zero-cost proposal to GLWA on April 5, 2021. No additional money is requested through Amendment No. 1.



Original Contract time                                                                976 days (5/22/19 - 1/21/22)

Proposed Amendment No.1 time                                          439 days (1/22/22 - 4/5/23)

New Contract time                                                                                             1,415 days (5/22/19 - 4/5/23)



Original Contract Price                                                                                     $2,322,045.00

Proposed Amendment No. 01                                                                     0.00

New Contract Total                                                                                                          $2,322,045.00



Summary: Sufficient funds are provided in the financial plan for this project.            


Funding Source: Sewer Construction Fund


Cost Center: Wastewater Engineering


Expense Type: Design (5421-892211.000-617950-211008)


This is a time extension amendment. There will be no financial impact.



This item was presented to the Operations and Resources Committee at its meeting on December 8, 2021. The Operations and Resources Committee unanimously recommended that the GLWA Board adopt the resolution as presented.


This item does not impact the shared services agreement between GLWA and DWSD.