Site work for a civil project in Carrboro, North Carolina. Conceptual plans call for site work for a water / sewer project.

Your firm is hereby invited to submit a written statement of qualifications to provide professional engineering services for the Jones Ferry Road Water Treatment Plant (WTP) Electrical Distribution Improvements and New Clearwell project. OWASA will conduct a QualificationBased Selection process to identify the best qualified firm, or team of firms, with which to negotiate a contract. All firms or teams submitting qualifications must have demonstrated experience and expertise in design and construction services for electrical systems and clearwells. The primary objectives of the project are to: Electrical Distribution Improvements: a) Upgrade the electrical system (gear and equipment) by eliminating the existing 2300VAC system and shifting the entire WTP to 480VAC system. b) Provide closed transition automatic transfer for both plant generators, including paralleling of the two generators. c) Create redundant loop for main service feed and both plant generators. d) Utilize previous planning and design documents for the electrical system improvements. e) Coordinate with other capital projects and operations ongoing throughout the WTP. f) Relocate components and demo existing "cube" power zone center. New Clearwell and Finished Water Pump Station: a) Design and construct a new clearwell and Finish Water Pump Station (FWPS) to meet the 20 MGD rated capacity and redundancy and resiliency needs of the WTP operations, with the ability to expand to 30 MGD in the future. b) FWPS to may include electrical room that could include relocated components from the existing "cube" power zone center. c) Incorporate ancillary systems like backwash pumping, as necessary, into the new clearwell and FWPS designs and construction. d) Utilize previous planning documents for the clearwell and conceptual 30 MGD facility site layout as a starting place. e) Coordinate with other capital projects and operations ongoing throughout the WTP. Electrical Distribution Improvements: In 2013, OWASA retained the services of Hazen & Sawyer (H&S) to complete an evaluation of the WTP switchgear for automatic transfer to standby power generators. The results of the H&S evaluation focused on identifying options that would provide WTP the ability to automatically transfer to back-up generator power in the event of a loss of the main electrical utility service to the plant. From this report, OWASA completed a short-term option recommended by H&S; however, the H&S report had identified a long-term solution to eliminate the 2300VAC service, shift the plant's entire electrical service to 480VAC, and provide a closed transition automatic transfer to both generators. In 2018, OWASA retained the services of CH2MHill to complete a Reliability and Risk Assessment of the WTP to identify potential improvements to mitigate risk of a system failure. One of the highest priority projects identified by this assessment was the removal of the 2300VAC gear and equipment and conversion over to 480VAC. In 2021, OWASA retained AECOM to design and construct the replacement of Finish Water Pump (FWP) No. 5, which removed the remaining piece of process equipment operating on the 2300VAC system. In 2019, OWASA retained H&S to complete the evaluation and design of the electrical distribution system improvements. In 2021, Hazen completed what was considered to be a 100% design submission for the scope that was envisioned at that time. The new electrical distribution system design includes a new electrical building and duct banks, coordination with Duke Energy to replace the existing electrical service with new 480VAC transformer, and included extensive investigation into and planning for the replacement of localized electrical panels across the entire WTP. In conjunction with the design process, OWASA and H&S submitted multiple applications seeking SRF funding but were not selected and after three attempts OWASA chose to pursue other funding sources. OWASA would have moved forward with the plans as previously developed, but in 2022 it was determined that the existing clearwell was facing significant structural failures/challenges requiring near-term construction of a new clearwell, and this impacted the ability for the electrical distribution improvements project to continue as originally designed. This project will focus on taking the existing H&S drawings and reevaluating the electrical routing, need to relocate the generator building, and coordinating the additional needs of a new clearwell, finished water pump station, and a future per- and polyfluoroalkyl substances (PFAS) removal facility (discussed below in "Other Challenges Concurrent at the WTP"). Significant coordination is expected with the PFAS project which is planned to occur within the same time period as the design and construction of the electrical system upgrades (and the new clearwell discussed below), however, it is OWASA's intention to utilize as much of the previous work by H&S as possible. The engineering services required for this project are expected to be completed to meet the objective outlined above and in general accordance with a scope of services as needed to accomplish the tasks listed below. However, the final scope of services will be negotiated with the selected engineering firm and may include modified and/or additional tasks. Electrical System Improvements: 1. Design services may include: a. Evaluation of existing plans for new route alternatives away from the existing clearwell b. Final design of electrical system improvements c. Re-permitting of final design d. Review and update previous maintenance of operations planning e. Review and update construction contract documents and technical specifications f. Updated cost estimation g. Bid assistance, potentially including contractor prequalification. 2. Construction services may include*: a. Construction inspection b. Construction administration c. Assistance with stakeholder engagement and communications d. Preparation of Record Drawings and other closeout information New Clearwell and Finished Water Pump Station: 1. Planning services may include: a. Preliminary engineering / alternatives evaluation b. Risk, operations engagement, planning 2. Design services may include: a. Design and permitting b. Maintenance of operations planning c. Development of construction contract documents and technical specifications d. Cost estimation e. Bid assistance, potentially including contractor prequalification 3. Construction services may include*: a. Construction inspection b. Construction administration c. Assistance with stakeholder engagement and communications d. Preparation of Record Drawings and other closeout information *Please note that at the time of this RFQ, OWASA anticipates bidding the clearwell and electrical project as one construction project. The draft and final plans, reports, etc. will be provided in electronic and hard copy formats in a manner acceptable to and usable by OWASA. The actual list and format of deliverables will be negotiated with the selected firm. Vishnu Gangadharan will be OWASA's primary point of contact for all consultant selection matters relating to this project. All questions regarding this Request for Qualifications must be emailed on or before Thursday, January 18, 2024 to Mr. Gangadharan at vgangadharan@owasa.org. The following information will be made available upon email request to vgangadharan@owasa.org: a. CH2M Hill Reliability and Risk Assessment Report b. OWASA WTP FMEA Mitigation FINAL-Electrical Distribution c. AECOM Finished Water Pump No. 5 Replacement Preliminary Engineering Report d. Hazen and Sawyer Jones Ferry Rd WTP Electrical Improvements PER e. Hazen and Sawyer WTP Electrical Distribution Improvements Drawings12102021 f. Hazen and Sawyer WTP Electrical Distribution Improvements Specifications12102021 g. Risk Register - WTP Electrical Distribution Improvements h. WTP Clearwell Schematic Size and Location Note that a Sensitive Information Request Form must be submitted with the request for any of the supplemental information documents. Submittals (including resumes) shall be limited to a maximum of 10 double-sided pages (i.e., 20 pages printed double-sided onto 10 sheets of 8-1/2"x11" paper). Please note that all Submittals shall become public documents upon delivery to OWASA. If there is sensitive or confidential information that cannot be shared publicly, please include additional documentation along with your submittal.