Report Prepared by: Ken F. Elwin, PE, Director of Public Works
Title
SUBJECT: Approval of a Seventh Amendment to the Professional Services Agreement with Stantec Consulting Services, Inc., for the Wastewater Collection System Master Plan (WCSMP) Update Environmental Impact Report (EIR) Project CP130059 for a not to Exceed Additional Amount of $75,000 for a Total Contract not to Exceed Amount of $1,022,850
REPORT IN BRIEF
Considers approving a seventh amendment to an agreement with Stantec Consulting Services, Inc., to include preparation of a draft and final Recirculated Environmental Impact Report (REIR).
RECOMMENDATION
City Council - Adopt a motion:
A. Approving a seventh amendment to professional services agreement with Stantec Consulting Services, Inc., in the additional amount of $75,000 for the City of Merced Wastewater Collection System Master Plan Update Environmental Impact Report (EIR); and,
B. Authorizing the City Manager or the Deputy City Manager to execute the necessary documents.
Body
ALTERNATIVES
1. Approve, as recommended by staff; or,
2. Approve, subject to conditions other than recommended by staff (identify specific findings and/or conditions amended to be addressed in the motion); or,
3. Deny; or,
4. Refer to staff for reconsideration of specific items (specific items to be addressed in the motion); or,
5. Continue to a future meeting (date and time to be specified in the motion).
AUTHORITY
Charter of the City of Merced, Section 200 et seq.
Services with an estimated value greater than $36,000.00 are made by written contract in accordance with Merced Municipal Code, Title 3 - Revenue and Finance, Chapter 3.04.
CITY COUNCIL PRIORITIES
As provided for in the Fiscal Year 2023/2024 Adopted Budget.
DISCUSSION
In April 2013, the City of Merced (City) authorized Stantec Consulting Services, Inc. (Stantec) to prepare an update to the City’s 2007 Draft Sewer Master Plan. The scope of that effort included the following major tasks:
1. Update New Land Use Assumptions (2030 Vision General Plan) and Wastewater Flows;
2. Assess Available Capacity in Sewers;
3. Determine Sewer System Needs at General Plan Buildout;
4. Develop Interim Service Plan;
5. Develop Sewer Repair and Replacement Program;
6. Develop Industrial Waste Acceptance Decision Matrix;
7. Project Meetings;
8. Prepare Draft and Final Master Plan Report; and,
9. Project Management and Administration.
Amendment No. 1 also placed on hold the following tasks as originally described in the Agreement:
• Develop Sewer Repair and Replacement Program - Task 5
• Prepare Draft and Final Master Plan Report - Task 8
Funding for the modifications to Tasks 3, 4, 6, 7 and 9 was made available through Amendment No. 1, by reducing the authorized budgets for Task 5 and 8, which were placed on hold. The end result of Amendment No. 1 was no net increase or decrease in the originally authorized budget ($112,000).
Amendment No. 2 provided for finalizing the Sewer Master Plan, as well as additional tasks requested by City staff. With regards to the additional tasks in Amendment No.2, there are two that should be highlighted that deals with (1) the coordination and review of satellite pretreatment facilities engineering evaluation, and (2) the associated CEQA Environmental documentation.
Amendment No. 3 included modifications to some of the existing approved tasks, as well as additional tasks, including an evaluation of satellite treatment plants, an evaluation of the potential expansion of the Wastewater Treatment Facility (WWTF), including an opinion of potential cost, and looking at financing options for the implementation of the recommendations in the final Draft Sewer Master Plan.
Amendment No. 4 included additional costs for Tasks 15 through 20 associated with CEQA document development and preparation, development of cost estimates for the two WWTRF location options added to the report, updates to the previously developed system hydraulic model to address comments provided by both City staff and stakeholders, update of previously developed simulation scenarios, and additional effort for field studies in support of a project specific evaluation of specific potential construction impacts with regards to Plan A. This amendment also included additional effort required for preparation of a second draft report (Final Draft Master Plan), which included among others, the addition of three additional sections and an executive summary section, as well as, changing the name of “Sewer Master Plan” to the ”Wastewater Collection System (WCS) Master Plan” and adjusted task budgets to allow for additional costs due to scope creep of the previously approved amendments and included additional evaluation of a satellite treatment facility and additional stakeholder meetings as well as additional City Council workshops regarding input to the draft plan.
Amendment No. 5 included additional effort related to Task 9 (Project Management and Administration), Task 17 (Preparation of the Draft EIR), and Task 24 (Assessment District Formation Assistance). Stantec was originally scoped to prepare a Programmatic EIR to support the City in 2015. After discussion with the City team there was an interest in trying to streamline future utility extensions for development, so the decision was made to have the EIR evaluate both a Program and Project level impacts. This was a change that required reformatting and revisions of the analysis to address this sweeping change that affected each of the resource considerations. Additionally, in order to address the Project level nature in the EIR one resource consideration that needed a revised approach specifically was the Air Quality and GHG sections that needed to be remodeled to account for the Project level details and the December 2018 OPR Climate Change Advisory. Because of the unanticipated time delays related to the project description and associated project components, the schedule became protracted beyond what was anticipated in the original contract and scope of work; as such, the consultant’s team required additional funds for management and meetings to continue work.
Amendment No. 6 included tasks to assist in updating the per capita wastewater flow design criteria, analyzing flow monitoring data, updating the Sewer Collection Hydraulic Model, performing a capacity analysis, and additionally preparing an updated Draft Wastewater Collection System Master Plan.
Amendment No. 7
The City adopted its latest Wastewater Collection System Master Plan (WCSMP) at its February 9, 2023, Council meeting. The plan included sewer flow revisions based on field monitoring conducted in 2021. The established average wastewater gallons per capita per day (gpcd) flow was reduced from 85 gpcd to 65 gpcd, a reduction of approximately 24%. This change resulted in a longer planning horizon for needed improvements to service future growth. As a result of this revised WCSMP, the City needs to also update the work that was done on previous draft Environmental Impact Reports to align with this new Master Plan.
The seventh amendment includes major work tasks to determine the changes in the Project Description and submit a revised Project Description, to make appropriate revisions to these documents and incorporate revised analysis related to changes on the WCSMP at both the Program and Project level. Then to prepare a Recirculated Draft Environmental Impact Report (RDEIR) and after public comments prepare the Final Recirculated EIR.
The total cost for performing the work associated with this amendment is $139,000 however, there is approximately $64,000 remaining in the previously approved contract tasks that will be reallocated to this environmental report task and therefore requiring $75,000 of additional funding ($139,000 - $64,000 = $75,000).
The City has prepared and approved to form the amendment to professional services agreement, and it is signed by the consultant (Attachment 1).
History and Past Actions
The Wastewater Collection System (Sewer) Master Plan is designed to evaluate and help the City plan and expand its wastewater collection sewer system to meet the needs of its growing population.
As part of a prior contract, Stantec Consulting Services, Inc., previously known as ECO:LOGIC, was hired to update the North Merced Sewer Master Plan. Later, amendments to the contract added work for the South Merced Sewer Master Plan, and subsequently to develop a comprehensive Merced Sewer Master Plan based on the existing 2015 SUDP/SOI.
During 2006-2007, new development boundaries were being proposed as part of the General Plan Update. As a result of the uncertainty of the SUDP/SOI boundary during the General Plan evolution, it was decided to postpone the finalization of Sewer Master Plan since it was directly tied to the City's overall growth boundary. Subsequently, a 2007 Draft Sewer Master Plan was prepared by the Consultant based on the wastewater system analysis up to that point. It was the intent that once the Merced Vision 2030 General Plan was adopted, the Draft Sewer Master Plan would be finalized and submitted for formal adoption by the City Council.
With the adoption of the City's Merced Vision 2030 General Plan, it was decided that the 2007 Draft Sewer Master Plan needed to be finalized based on the new 2030 Specific Urban Development Plan/Sphere of Influence (SUDP/SOI).
At the April 1, 2013, City Council meeting, Council approved an $112,000 contract with Stantec Consulting Services, Inc., to resume the update of the wastewater collection system model and Sewer Master Plan work that was put on hold in 2007 to include the proposed 2030 SUDP/SOI.
At the June 16, 2014, City Council meeting, Council approved a no cost First Amendment with Stantec Consulting Services, Inc., for a scope of work change to include the development of additional servicing alternatives not originally included in the agreement.
Task 4 of the agreement was also modified to include additional interim servicing plans that involved both UC Merced and the UC Campus Communities North and South.
Task 6 of the agreement was modified with Amendment No. 1 to include evaluation of remaining WWTF capacity. This was undertaken in the context of the potential to serve one or more significant industrial users, while still meeting existing City service commitments. The effort associated with Task 6 and the projection of future WWTF influent flows described as part of Task 3 (see above) were discussed in a summary report entitled Merced WWTF Industrial Waste Acceptance Evaluation (May 2014, Stantec).
In addition, more effort was desired in the form of Stantec participation in City Council and stakeholder meetings. The intent of these meetings was to present alternative sewer servicing concepts to the City Council and stakeholders to allow for input and direction allowing Stantec to produce a master plan document. This additional effort was reflected in Task 7, project meetings.
A small increase in the allowance for Task 9, Project Management and Administration was authorized with Amendment No. 1 as well, to account for the additional time the system evaluation would require beyond the schedule in the original Agreement authorization.
Amendment No. 1 also placed on hold the following tasks as originally described in the Agreement:
• Develop Sewer Repair and Replacement Program - Task 5
• Prepare Draft and Final Master Plan Report - Task 8
Funding for the modifications to Tasks 3, 4, 6, 7 and 9 was made available through Amendment No. 1, by reducing the authorized budgets for Task 5 and 8, which were placed on hold. The end result of Amendment No. 1 was no net increase or decrease in the originally authorized budget ($112,000).
Approved April 20, 2015, Amendment No. 2, dealt primarily with the addition of the task for the preparation of the Draft EIR and some other minor amendments to the existing tasks. The end result of Amendment No. 2 was a net increase in the originally authorized budget ($324,000).
Approved April 17, 2017, Amendment No. 3 focused on financing options for a potential Assessment District, as well as evaluated the concept of a satellite treatment facility and expansion of the City’s WWTF. Amendment No. 3 was a net increase of $201,650.
Approved September 4, 2018, Amendment No. 4 allowed for additional CEQA/EIR related efforts, updates to the Wastewater Collection System Master Plan, including additional stakeholder and staff input on the draft plan, as well as further specific task evaluation(s). Amendment No. 4 was a net increase of $130,400.
Approved June 15, 2020, Amendment No. 5 included additional CEQA/EIR related efforts, including development of a second administrative draft environmental impact report, addressing the project level nature approach specifically relating to the air quality and greenhouse gas (GHG) sections and additional efforts related to the potential assessment district formation. Amendment No. 5 was a net increase of $61,500.
Approved November 1, 2021, Amendment No. 6 included updating flow design criteria and the Sewer collection System Hydraulic Model, as well as preparing an updated Draft Wastewater Collection System Master Plan. Amendment No. 6 was a net increase of $118,300.
IMPACT ON CITY RESOURCES
Project CP130059 contains sufficient funding for the contract amendment.
ATTACHMENTS
1. Seventh Amendment
2. Original Contract
3. First Amendment
4. Second Amendment
5. Third Amendment
6. Fourth Amendment
7. Fifth Amendment
8. Sixth Amendment