SOQ for Professional Services for Wastewater Treatment Facility Alternatives & Upgrades

Location:	North Dakota
Posted:	Feb 6, 2026
Due:	Mar 6, 2026
Agency:	Mandan city
Type of Government:	State & Local
Category:	C - Architect and Engineering Services - Construction S - Utilities and Training Services
Publication URL:	To access bid details, please log in.

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Request for Statement of Qualiﬁcations (SOQ)

For: Professional Services for Wastewater Treatment Facility (WWTF) Alternatives and Upgrades

Issued by: City of Mandan, North Dakota

Date: February 6th, 2026

Introduction

The City of Mandan (City) is requesting Statements of Qualifications (SOQs) from qualified consulting

engineering firms to provide professional engineering services for evaluating, designing, and

administering the construction of upgrades to the City’s existing Wastewater Treatment Facility

(WWTF).

The City’s WWTF has been operating for over 50 years and as a mechanical treatment plant since 1996.

The WWTF is critical to the community’s health, safety, and environmental stewardship. The facility has

undergone multiple improvements throughout its lifetime, and its current operation relies heavily on

efficient liquid and solids handling, robust instrumentation and control (I&C) systems, and the expertise

of its staff to maintain functionality and compliance in the absence of system redundancy. As the City

evaluates future treatment needs, maintaining continuity and operational efficiency is a top priority.

This project will use the Construction Manager at Risk (CMAR) delivery method, which requires strong

collaboration among stakeholders. The selected firm must demonstrate a deep understanding of the

existing WWTF’s facilities, operational workflows, and the unique challenges associated with Mandan’s

wastewater infrastructure.

Since 2023, the City has been engaged in WWTF Master Plan updates and long-range financial planning.

Through these efforts, the City has established and confirmed the project need and magnitude.

Project Scope

The scope of services may include, but is not limited to:

1. WWTF Evaluation and Design

a. Treatment process alternative analysis, including conventional and advanced treatment

methods.

b. Design and implementation of the selected treatment system to replace or enhance

existing treatment processes. Design services shall include all necessary ancillary

disciplines needed for the successful construction of the new WWTF.

c. Address integration with the WWTF’s solids handling and odor control systems.

2. Instrumentation and Control (I&C)

a. Evaluate the existing I&C system and recommend upgrades to enhance monitoring,

automation, and operational efficiency.

b. Provide improvements compatible with the City’s existing I&C systems, which are

integral to day-to-day operations.

3. CMAR Collaboration

a. Assisting the City with the procurement of the CMAR for the project.

b. Provide planning, design and construction services tailored to the CMAR delivery

method, including early contractor involvement, alternatives analyses, value

engineering, and efficient project delivery.

4. Construction Administration

a. Provide construction administration, engineering and on-site services during

construction, including submittal reviews, RFI/RFC responses, pay application reviews,

design change reviews and documentation (as necessary), construction oversight and

documentation, etc.

5. Permitting and Regulatory Compliance

a. Navigate the complex permitting requirements associated with wastewater treatment

upgrades or new construction.

6. Financial and Funding Support

a. Identify and support funding opportunities to minimize the financial burden on the City.

b. Provide financial analyses to support decision-making and ensure the long- term

sustainability of the selected solution.

7. Community Engagement

a. Assist the City in communicating project objectives and benefits to stakeholders and the

public.

8. Owner’s Advisor

a. To accomplish the objectives listed in this solicitation, the City may elect to include

additional project management or administrative support services that supplement City

staff during the CMAR process. These services may be provided by the selected Engineer

or by a separate consultant, at the City’s discretion, and are intended to support

coordination, documentation, and procurement activities rather than duplicate design

responsibilities.

Selection Criteria

Firms will be evaluated based on the following criteria:

1. Knowledge of the Existing WWTF and Operations

a. Demonstrates understanding of the current plant’s operations, including solids handling,

I&C systems, and hydraulic processes.

b. Experience working with similar facilities and addressing operational challenges while

implementing upgrades or alternatives.

2. Project Approach and Responsiveness

a. Clear and comprehensive approach to evaluating the existing WWTF and future

treatment alternatives, including the establishment of a conventional baseline and the

advantages of alternative treatment methods.

b. Proximity to Mandan and demonstrates ability to respond promptly to the City’s needs

throughout the contract duration.

c. Willingness to meet time and budget requirements.

3. Relevant Experience and Expertise

a. Proven experience analyzing treatment alternatives, designing and implementing

wastewater treatment systems, with specific examples of successful integration into

existing facilities.

b. Comprehensive knowledge of I&C system design and optimization.

c. Experience delivering projects using the CMAR method, including early collaboration

with contractors and stakeholders that led to value-engineering savings on large-scale

projects.

d. Expertise in mechanical dewatering, disposal strategies, and long-term facility planning

that account for emerging regulatory trends.

4. Team Qualifications

a. The ability of key project team personnel, particularly in areas critical to this project.

b. Demonstrated ability to provide hands-on support throughout the project lifecycle.

c. Recent, current and projected workloads.

5. Financial and Funding Capabilities

a. Expertise in securing grants and low-interest loans to offset project costs.

b. Proven track record of developing financial strategies for municipal projects.

c. Demonstrates project delivery strategies that would substantiate the long-term financial

benefit of a selected alternative.

Submission Requirements

Interested firms shall submit a detailed SOQ that includes the following:

1. Cover Letter: Introduction and statement of interest.

2. Project Understanding and Approach: Narrative outlining the firm’s understanding of the

existing WWTF and proposed approach to upgrades and alternatives.

3. Experience and Expertise: Summary of the firm’s background and relevant project experience.

4. Team Qualifications: Identify key personnel, their location and project roles, including

subconsultants, if applicable.

5. Financial Capabilities: Overview of funding strategies and success stories.

6. References: Contact information for at least three clients from similar projects.

Submission Deadline and Instructions

Submission Deadline: To be considered, the SOQ shall be submitted by 4:00 p.m. (CT) on Friday, March

6th, 2026.

Submission Format: The SOQ is limited to fifteen (15) pages, and the main body should be delineated to

clearly satisfy the above Submission Requirements. The cover letter will not be counted as one of the

fifteen pages. If necessary, appendices are allowed to include resumes (max 2 pages per), references,

and additional related project information that support the firm’s capability. The appendices will not be

counted against the fifteen-page limit. For consideration, submit one (1) electronic copy to:

City of Mandan

engineering@cityofmandan.com

Engineering Office

205 2nd Avenue NW

Mandan, ND 58554

Contact Information: Questions should be directed to jarek.wigness@cityofmandan.com and include the

text “WWTF SOQ Inquiry” in the subject line. The City will make a reasonable effort to respond to

inquiries from interested parties, depending on the nature and timing of the communication received.

Additionally, firms may request a 1-hour meeting with City staff to ask questions about the project prior

to submission.

The estimated schedule is as follows:

Start Date

February 3

February 6

March 6

March 20

March 30

April 1

April 7

April 8

April 13

April 29

May 5

Length

28 days

14 days

2 days

14 days

Milestone

Commission Approval

RFQ Published

Submittal Deadline and City Review

Notify Shortlisted Firms

Interviews & Selection

Commission Agenda Deadline

Commission Approval to Proceed with Contract Negotiations

Contract Scoping

Contract Negotiations

Commission Agenda Deadline

Commission Approval of Contracts

Background Information

Most background information is available through master planning documents that are stored in the

following shared drive:

Mandan WWTF Supporting Documents

(https://mandannd-

my.sharepoint.com/:f:/g/personal/jarek_wigness_cityofmandan_com/IgAThNufBi56T4Rm59p6yYKHAW

o3W0MLsUuNjTyig-SzhJc?e=QXVuVw)

If there are issues with this delivery method or additional documentation is required, the City will make

documents available upon request.

Evaluation Process

The City will evaluate submissions based on the outlined criteria and reserves the right to reject any or

all SOQs. Shortlisted firms may be invited for interviews or presentations. The City may elect to hire one

or multiple firms for certain phases of the project, as determined to be in the best interest of the City.

Conclusion

The City values the continued operation of its existing WWTF and seeks a firm capable of addressing

both immediate needs and long-term goals. Firms are encouraged to highlight their understanding of

the current plant’s systems, expertise in liquid treatment and solids handling systems, and ability to

collaborate on a CMAR delivery project.

This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

SOQ for Professional Services for Wastewater Treatment Facility Alternatives & Upgrades

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