Site work for a water / sewer project in Holly Ridge, North Carolina. Completed plans call for site work for a one-story above grade water / sewer project.

The work involves the completion of a softener tank rehabilitation at the Dixon Water Treatment Plant. The successful proposer shall provide all permits, materials, equipment, and labor required to: remove and dispose of existing media; perform a visual inspection of the tank with repairs (including spot and patch welding) as needed; prepare and paint interior and exterior surfaces; conduct pressure testing; replace the brine inlet valve and electronic actuator; and install new gravel and media in one steel tank softener vessel. All work will be performed at the Dixon Water Treatment Plant. Work must begin within seven calendar days from the receipt of the Notice to Proceed, and be completed with the tank ready for service within 30 calendar days. Contractors must observe NC General Statutes regarding contractor licensing. Performance and Payment Bonds are required for this project. For informational purposes, the attached drawing illustrates approximate tank dimensions and layout. All work on this project shall conform to the following requirements: 1) GENERAL REQUIREMENTS a) Work shall be performed following all applicable state and local codes and regulations governing this project. b) The contractor shall be responsible for securing and paying for all permits required to complete the project. c) ONWASA shall provide access to an on-site potable water source (hydrant) for use during the work. d) Access to the plant is restricted, so work schedules and material deliveries must be coordinated in advance with the plant operator to ensure adequate access and avoid/minimize impacts to water production activities. e) Conduct operations in such a manner as to avoid damage to other site facilities (controls, building, security gate and fencing, etc.) Any such damage shall be repaired by the Contractor at no additional cost to ONWASA. 2) SOFTENER MEDIA REMOVAL AND DISPOSAL a) Empty and vacuum clean one (1) steel softener tank (9 ft. 6 in. straight shell by 12 ft. OD) of all existing softener and gravel media. b) All removed media shall be hauled and disposed of off-site by the Contractor. c) ONWASA will provide to the Contractor AS w/ TCLP analysis (Exhibit D) and/or MSDS sheets for the media, as required by the landfill, before disposal. Attached at the end of the Scope of Work. 3) TANK PREPARATION AND COATING a) Pressure wash tank interiors and remove any remaining debris. b) Remove the existing 4" PVC brine inlet valve and electronic actuator and replace them with like kind. Wiring and testing of the replacement actuator and brine inlet valve shall be the responsibility of the contractor. Testing of the actuator shall be conducted in front of ONWASA personnel prior to ball valve installation. c) Inspect interior components (underdrain system, surface wash equipment, inlet distributor/brine distributor, air scour equipment, wash water troughs, etc.) and advise ONWASA of any deficiencies discovered before proceeding. Underdrain repairs are not a part of the Scope of Work. d) Sandblast tank interiors to SSPC-SP10/NACE 2 Near White Metal condition. e) Perform a visual inspection of the tank and spot weld or weld patches over defective areas as needed. Spot welds, welding burn through, or welded patches on the exterior will require preparation and application of a two-part epoxy coating certified for potable water service (Tnemec Pota-Pox series or equivalent) following the manufacturer'srequirementsfor application and curing to the full exterior of the vessel once welding is completed. f) Apply Tnemec series 215 (or equivalent) surfacing epoxy following the manufacturer's requirements for application and curing to the interior tank wall from the concrete fill to 30" up the side wall. g) Apply a two-part epoxy coating certified for potable water service (Tnemec Pota-Pox series or equivalent) following the manufacturer's requirements for application and curing. The coating thickness is as follows: o First coat 6.0 - 8.0 dry mils o Stripe coat 3.0 - 5.0 dry mils o Second coat 6.0 - 8.0 dry mils h) Provide an inspection by the epoxy coating manufacturer to verify proper application before tank integrity testing. i) Provide detailed photos of the interior of the vessel after sandblasting is complete and after the coating is applied. Technical questions related to this Request for Proposal shall be addressed to Seth Brown, Deputy Chief Operations Officer (Treatment ORC) at 910-937-7520, or by e-mail to sbrown@onwasa.com. Any questions regarding the RFP or proposed contract must be submitted in writing, at least five (5) business days prior to the submittal date for the proposal and directed to the ONWASA Purchasing Agent. All responses that require a change to this Request for Proposal will be issued in the form of a formal addendum. Question Deadline 11/11/2025 Any questions regarding the RFP or proposed contract must be submitted in writing, at least five (5) business days prior to the submittal date for the proposal and directed to the ONWASA Purchasing Agent. Technical questions related to this Request for Proposal shall be addressed to Seth Brown, Deputy Chief Operations Officer (Treatment ORC) at 910-937-7520, or by e-mail to sbrown@onwasa.com.