RFQ#2026-28 Kellogg Creek Influent Pump Station Headworks Pipe Replacement

RFQ#2026-28 Kellogg Creek Influent Pump Station Headworks Pipe Replacement Kellogg Creek Influent Pump Station Headworks Pipe Replacement Revised 4/2026 Page 1 _____________________________________________________________________________________________ REQUEST FOR QUOTES (RFQ) #2026-28 Issue Date: April 21, 2026 Project Name: Kellogg Creek Influent Pump Station Headworks Pipe Replacement Quote Due Date/Time: May 20, 2026, 2:00 PM PST Procurement Analyst: Tralee Whitley Email: TWhitley@clackamas.us SUBMIT QUOTES VIA EQUITY HUB’S BID LOCKER LOCATED AT https://bidlocker.us/a/clackamascounty/BidLocker. P LEASE NOTE: EMAIL SUBMISSIONS WILL NOT BE ACCEPTED. 1. ANNOUNCEMENT AND SPECIAL INFORMATION Quoters are required to read, understand, and comply with all information contained within this Request for Quotes (“RFQ”). All quotes are binding upon Quoter for sixty (60) days from the Quote Due Date/Time. Quotes received after the Quote Due Date/Time may not be considered. If authorized in the RFQ and resulting contract, travel and other expense reimbursement will only be reimbursed in accordance with the Clackamas County Travel Reimbursement Policy in effect at the time the expense is incurred. The Policy may be found at https://www.clackamas.us/finance/terms.html. RFQ Documents can be downloaded from OregonBuys at the following address: https://oregonbuys.gov/bso/ Document No. S- C01010-00016669. Prospective Quoters will need to sign in to download the information and that information will be accumulated for a Plan Holder's List. Prospective Quoters are responsible for obtaining any addenda or clarifying questions from OregonBuys. Submitting Quotes: Bid Locker Quotes will only be accepted electronically via a secure online submission service, Bid Locker. Email submissions to Clackamas County email addresses will no longer be accepted. A. Completed quote documents must arrive electronically via Bid Locker located at https://bidlocker.us/a/clackamascou nty/BidLocker. B. Bid Locker will electronically document the date and time of all submissions. Comp leted documents must arrive by the deadline indicated above or as modified by Addendum. LATE QUOTES WILL NOT BE ACCEPTED. C. Quoters must register and create a profile for their business with Bid Locker in order to submit for this project. It is free to register for Bid Locker. D. Quoters with further questions concerning Bid Locker may review the Vendor’s Guide located at https://www.clackamas.us/how-to-bid-on-county-projects . A ll questions regarding this RFQ are to be directed to the Procurement Analyst named above. Quoters may not communicate with County employees or representatives about the RFQ during the procurement process until the Procurement office has notified Quoters of the selected Quoter. Communication in violation of this restriction may result in rejection of a Quoter. 2 . B ACKGROUND Procurement Division Public Services Building 2051 Kaen Road Oregon City, OR 97045 (503) 742-5444 (Office) Revised 4/2026 Page 2 The Kellogg Creek Water Resource Recovery Facility (“WRRF”) is in Milwaukie, Oregon, and is owned and operated by Clackamas Water Environment Services (“WES”). The facility’s pump station and headwork was originally constructed in 1977 and conveys influent flow from the collection system into the plant headworks for primary treatment. The influent pump station contains four (4) pumps, each discharging through a 24-inch pipe that runs horizontally between two concrete walls before discharging through a flap gate into the screenings channel. The existing discharge pipes are original to the 1977 construction and were designed as concrete- encased ductile iron. The pipes were originally buried but have since been excavated and are now exposed and accessible via hatches, with bare soil remaining below the pipe corridor. WES has identified active leakage and deterioration on the discharge pipes. The pipes convey unscreened influent flow containing grit and abrasive solids, which over nearly 50 years of service has worn down the interior pipe wall. The concrete encasement that originally provided exterior corrosion protection is no longer intact, and the reduced wall thickness combined with exposure to the humid, hydrogen sulfide- bearing pump station atmosphere has resulted in through-wall failure. WES is therefore seeking contractor services to remove and replace all four discharge pipes. The 90- degree drop elbows at the pump discharge connections were recently replaced under a separate project and are in good condition; they are excluded from this scope. The existing Hydro Gate cast iron flap gates at the discharge end of each pipe are functional and will be refurbished and reinstalled. 3. SCOPE The purpose of this RFQ is to purchase contractor services for the removal and replacement of four (4) existing 24-inch discharge pipes at the Kellogg Creek Influent Pump Station, located at the Kellogg Creek Water Resource Recovery Facility in Milwaukie, Oregon. The existing discharge pipes are approximately 10 feet in length and run horizontally between two concrete walls, with pipe segments cast into the walls on both sides. The pipes are currently exposed and accessible via hatches above the pipe corridor. Bare soil exists below the excavated pipe area. The existing 90-degree drop elbows at the pump discharge were recently replaced under a separate project and are in good condition; they are not within the scope of this work. The work includes the following: 1. Demolition and Removal. Remove and dispose of four (4) existing 24-inch discharge pipes, including the pipe segments cast into the concrete walls on both sides of each pipe run. Contractor shall core, cut, or otherwise remove the concrete as necessary to extract the existing embedded pipe sleeves and wall penetrations. 2. Pipe Replacement. Furnish and install four (4) new 24-inch discharge pipes from wall penetration to wall penetration, including new wall sleeves or penetration seals, flange connections, flexible couplings, and pipe supports as required to match the original design intent shown on the record drawings. The base quote pipe material shall be lined ductile iron with a shop-applied exterior corrosion protection system suitable for continuous exposure to a humid, hydrogen sulfide-bearing pump station atmosphere and incidental soil contact. Quoters are encouraged to also provide alternative pricing for 316L stainless steel and/or coated carbon steel as described in Section 4. Contractor shall submit pipe material specifications, including interior lining and exterior coating/protection system details, shop drawings, and product data for Owner approval prior to fabrication or procurement. 3. Concrete Wall Restoration. Patch and restore all concrete wall penetrations to a watertight condition. New penetration seals or sleeves shall be suitable for the environment (humid, potentially corrosive pump station atmosphere). Concrete repair materials and methods shall be submitted for Owner approval. 4. Flap Gate Refurbishment and Reinstallation. Remove four (4) existing Hydro Gate cast iron flap gates at the discharge end of each pipe. Clean and inspect each gate, including the bronze seating faces on the frame and cover, hinge pins, link bushings, linkage arms, and cotter pins. Replace hinge pins, link bushings, and cotter pins if worn. Clean all debris from seating contact Revised 4/2026 Page 3 surfaces and verify seating with a 0.004-inch feeler gauge. Adjust top pivot points per manufacturer’s instructions to achieve proper seat contact. Lubricate all pivot points and moving parts. Reinstall gates upon completion of pipe installation. Contractor shall notify the Owner of any condition issues — including worn or pitted bronze seating faces — that would warrant gate replacement. 5. Flow Management During Construction. A minimum of two (2) discharge pipes shall remain in service at all times during construction. The Owner’s preferred flow management method is as follows: a. Install flow-through plugs on the two (2) discharge pipes that will remain in service during each phase of work. b. Route temporary piping from the plugged pipes around the active work area and discharge into the screenings channel. c. This approach is intended to maintain flow using the existing pumps without requiring temporary bypass pumps. Contractor may propose an alternative flow management method if it can be demonstrated to provide equivalent or better protection of treatment capacity and is approved by the Owner. Regardless of method, the Contractor is solely responsible for maintaining the required minimum flow capacity throughout construction. Any damage or disruption to plant operations resulting from inadequate flow management shall be the Contractor’s responsibility. 6. Testing. Leak-test all new pipe installations prior to final acceptance. Contractor shall propose a testing method and acceptance criteria for Owner approval. At a minimum, all flanged joints and wall penetrations shall be visually inspected under operating conditions for a period of not less than 24 hours. 7. Site Restoration. Restore all disturbed areas, hatches, grating, and access points to pre- construction condition or better. Remove all temporary piping, plugs, and construction materials from the site upon completion. Prevailing Wage Rates requirements apply to this project because the maximum compensation for all owner-contracted work is more than $50,000. The selected contractor and all subcontractors shall comply with the provision of ORS 279C.800 through 279C.870, relative to the Prevailing Wage Rates and the required public works bond. PREVAILING WAGE RATES for Public Works Contracts in Oregon, January 5, 2026 and amended on April 5, 2026, which can be downloaded at the following web address: http://www.oregon.gov/boli/WHD/PWR/Pages/pwr_state.aspx. The Work will take place in Clackamas County, Oregon. Contract is inclusive of general conditions

• Performance and payment bonds will be required part of the final contract.
• Should quotes exceed $100,000, a bid bond must accompany submitted quote.

Project Estimate: $150,000.00 Key Dates: Work must be performed during a dry weather / low flow period and must be substantially completed no later than September 30, 2026. Contractor shall coordinate the construction schedule with the Owner to avoid periods of forecasted rain or high influent flow. The following items are included and incorporated within this RFQ:

• Record Drawings — CH2M Hill Sheets 19, 20, and 21: Building Floor Plan, Pump/Motor

Floor Plans, and Mechanical Sections & Details (3 sheets) Revised 4/2026 Page 4 2. SAMPLE CONTRACT Submission of a Quote in response to this RFQ indicates Quoter’s willingness to enter into a contract containing substantially the same terms of the below referenced contract, which can be found at: https://www.clackamas.us/finance/terms.html, with the below indicated requirements. No action or response to the sample contract is required under this RFQ. The applicable sample contract is the: Public Improvement Contract Clackamas County General Conditions for Public Improvement Contracts (dated 11/21/2024) (“General Conditions”) https://www.clackamas.us/finance/terms.html 3. QUOTE Quotes should be short and concise with the following information: A. Company experience in pipe replacement, mechanical piping, or similar construction work at wastewater treatment facilities. Provide at least three (3) project references for comparable work, including project name, owner contact information, contract value, and year completed. B. Flow management plan. Describe the proposed approach for maintaining a minimum of two (2) discharge pipes in service at all times during construction. If proposing the Owner’s preferred method (flow-through plugs with temporary piping to the screenings channel), provide plug type/manufacturer, temporary pipe size and routing, and a phasing plan showing the sequence of pipe replacement. If proposing an alternative method, provide sufficient detail to demonstrate equivalence. C. Experience of key staff that will work on the project, including the project superintendent and any specialty subcontractors (e.g., concrete coring, pipe welding/fabrication). D. Not-to-exceed price to complete the project. Quoters shall provide pricing as follows: Base Quote (Required): Provide a not-to-exceed price using lined ductile iron pipe with exterior corrosion protection, with a line-item breakdown that separately identifies at minimum: a. Mobilization / demobilization b. Flow management (plugs, temporary piping, phasing) c. Demolition and removal (pipe removal and concrete cutting) d. Pipe furnishing and installation (material, fabrication, supports, installation) e. Concrete wall restoration f. Flap gate refurbishment (cleaning, inspection, wear part replacement, adjustment, reinstallation) g. Testing h. Site restoration Alternative Quote 1 (Optional): Provide a not-to-exceed price using 316L stainless steel pipe, with the same line-item breakdown as the base quote. Quoter shall identify the specific product, manufacturer, and wall thickness proposed, and provide supporting product data. Alternative Quote 2 (Optional): Provide a not-to-exceed price using coated carbon steel pipe, with the same line-item breakdown as the base quote. Quoter shall identify the specific coating system proposed (interior and exterior), manufacturer, and provide supporting product data. Revised 4/2026 Page 5 The Owner will evaluate all quotes on a best-value basis considering price, proposed material suitability for the service environment, and expected service life. The Owner reserves the right to select any combination of Quoter and pipe material that represents the best overall value. E. Proposed construction schedule, including estimated total project duration, anticipated duration of each construction phase, and the proposed constructio