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Consent

Brentwood City Commission Agenda

Meeting Date:	03/11/2019
Resolution 2019-25 - Agreement with Barge Design Solutions for Sewer Rehabilitation Program Engineering Assistance
Submitted by:	Chris Milton, Water & Sewer
Department:	Water & Sewer

Information

Subject

Resolution 2019-25 - Agreement with Barge Design Solutions for Sewer Rehabilitation Program Engineering Assistance.

Background

Water Services Department staff is recommending approval of the attached engineering services agreement with BARGE Design Solutions (formerly Barge Waggoner Sumner and Cannon, Inc.) for the ongoing sewer rehab. program and sewer system Capacity Management, Operations and Maintenance (CMOM) plan.

In May of 2006, Metro-Nashville and the City of Brentwood jointly received an Agreed Order from the State of Tennessee requiring the two agencies to prepare a Corrective Action Plan/Engineering Report (CAP/ER) for eliminating overflow events that occur at the Brentwood/Metro Pump Station (Little Harpeth River Basin) during rain events up to a two-year storm. This set in motion a multi-phased, multi-year sewer rehabilitation program outlined by CDM Engineering, the firm hired by both agencies to prepare the CAP/ER report which included recommendations for rehabilitation projects. CDM developed the program plan that included multiple project recommendations ranging in cost from $30 million to over $140 million. Metro and the Brentwood, with TDEC’s approval, selected the $30 million cost alternative for implementation. The selected alternatives required for the City to make upgrades to the Metro/Brentwood pumping station, ensure rehabilitation of system components including lines, manholes and customer services, and construct a storage facility to contend with the infiltration of rain water up to a two-year storm--the acceptable TDEC standard. To date, the sewer rehabilitation program has been successful in removing over 700 million gallons of rain water from the system annually during storm events, reducing costs of transportation and treatment and meeting the overall objectives of the plan. The only remaining work to be completed under the recommendations of the CAP/ER is to construct a storage facility near the Metro/Brentwood pumping station. Staff is currently working with the project engineer developing concepts and also discussing land purchase options.

With that said, future sewer rehabilitation beyond the CAP/ER work will be a function of the department’s operation and maintenance program proposed at a much lower financial commitment than was completed under the CAP/ER program. It is very important that the program continue to be proactive to reduce future infrastructure repair and maintenance costs. Under the department’s current C.I.P., funds have been programmed for around one-half million dollars annually to continue to evaluate conditions system-wide and make repairs and complete rehabilitation projects when identified.

In order to provide the Water Services Department continued sewer rehabilitation program assistance and appropriate expertise as we move forward into the next phase of the sewer rehabilitation program, staff is recommending that the City authorize an agreement with Barge Design Solutions. Barge Design Solutions has been chosen by the department to help staff in providing this expertise as a result of their familiarity with the City’s sewer system and CAP/ER efforts as Barge previously was under contract with the City to provide program assistance for the first phase of the CAP/ER project. Many of the same Barge team members will be participating in this next phase of the rehab program including the project manager for the initial development of the CAP/ER. As the Sewer Rehabilitation Program consultant, Barge will perform the following services:

In general, provide assistance with the City’s ongoing Sewer Rehabilitation Program, CAP/ER and CMOM.
Conduct detailed, standardized analysis of flow and rainfall monitoring data from monitoring sites using the method accepted by TDEC for analyzing and quantifying such data.
Develop and recommend a system for prioritizing sewer rehabilitation projects and make project recommendations to the City using this system.
Develop standard specifications, project contract documents for bidding, inspection services and construction administration for sewer rehabilitation projects.
Prepare materials and attend meetings of the City’s Board of Commissioners, the State of Tennessee and Nashville Metro Water Services as needed.
Prepare a CAP/ER for the Owl Creek sewer basin as directed by Nashville Metro Water Services and the City of Brentwood Sewage Trunk and Transportation agreement.
Recommend updates to sewer design criteria for sewer system.
Provide assistance with general GIS data management including but not limited to analysis of GIS data generated by the Sewer Rehabilitation Program and CMOM activities.
Provide other Program Management assistance as needed and requested.

Accordingly, staff recommends approval of the enclosed agreement with Barge Design Solutions. The cost for annual services are determined annually during budget preparation based on the work expectations for the upcoming fiscal year. The agreement is proposed for a period of one year, with up to four one-year renewals available to be approved by staff and the engineer.

Should you have any questions, please contact Chris Milton, Water Services Director.

Staff Recommendation

Staff recommends approval.

Previous Commission Action

Res. 2006-20: Agreement with CDM for the development of the Metro Water Services/City of Brentwood CAP/ER for TDEC approval.
Res. 2007-44: Agreement with Barge Waggoner Sumner Cannon for Phase 1-2 CAP/ER program assistance.
Res. 2015-21: Agreement with CH2M Hill for Pase 3 CAP/ER program assistance.

Fiscal Impact

Amount :	Per Annual Budg
Source of Funds:	Water & Sewer Fund
Account Number:	412-16700-8023

Fiscal Impact:

The annual cost of these services over the life of the contract will vary based on the scope of work in any given year, but is expected to average between $75,000 - $100,000.

Attachments
Resolution 2019-25
Contract No. 2019-024
Signed Resolution