Renovation of a water / sewer project in Durango, Colorado. Completed plans call for the renovation of a water / sewer project.

Reference Number 0000345361 Job Location: Santa Rita Water Reclamation Facility The City of Durango Colorado, by and through its Purchasing Administrator, invites interested, qualified bidders, capable of providing the required services, to submit bids for the Santa Rita Water Reclamation Facility (SRWRF) Grit Chamber and East Primary Clarifier Coating and Repair Project. The purpose of this project is to rehabilitate approximately 5,200 square feet of existing Primary Clarifier & Grit Chamber surfaces in an operational wastewater treatment facility. Services to be provided by the Contractor will include, but will not be limited to: existing surface preparation including minor repairs and surfacing, disassembly and re-installation of appurtenances including baffle plates, scum skinner assembly, and Headcell grit settling tray assembly, and installation of a layered coating with a modified polymer and polyurethane/polymeric foam. The contractor shall furnish all labor, materials, equipment, and other items necessary to complete the work in accordance with the contract documents. The purpose of this project is to rehabilitate surface coatings in the East Primary Clarifier and East Grit Chamber in an operational wastewater treatment facility. Work includes: 1. Disassembly and removal of appurtenances that are attached to existing surfaces to be rehabilitated. For the Primary Clarifier this includes scum baffle plates along the weir edge of the perimeter and a scum skimmer assembly (i.e. scum beach) which are typically fastened to concrete anchors. For the Grit Chamber, this includes a Headcell grit settling tray assembly- please refer to the Field Assembly Sequence attachment for details. 2. Surface preparation of interior tank and chamber surfaces to an SSPC-SP13/NACE 6 standard to produce a cleaned, abraded, and sound surface with no evidence of laitance, loose concrete, contaminants, or debris. The sump in the Primary Clarifier and the Effluent Trough outlet must be covered to ensure no foreign material enters piping. 3. Collect, store, and transport spent abrasive material and existing coating to landfill. 4. Apply moisture/chemical barrier specifically developed for corrosive wastewater environments, consisting of silicone modified polyurea to interior tank walls and channel surfaces. 5. Apply surfacer consisting of low viscosity, two-component polyurethane/polymeric blend foam to interior tank and channel surfaces. 6. Apply final/chemical corrosion barrier specifically developed for corrosive wastewater environments, consisting of silicone modified polyurea to interior tank and channel surfaces. 7. The total thickness of the multi-layer liner system shall be a minimum of 500 mils. 8. The contractor will be responsible for providing representative layer and/or total coating thickness measurements. Question Acceptance Deadline 04/11/2024 03:00 PM MT Questions are submitted online Yes, Each bidder, before submitting their bid, shall become fully informed as to the extent and character of work required. All questions must be submitted via website. Notice of Award (Estimated) May 3, 2024 Notice to Proceed (Estimated) May 24, 2024 Number of Construction Days 90 Calendar Days Project Completion (Estimated) August 22, 2024 Buyer Preferences, Guidelines & Requirements Participation Requirements - Business Concern - Disadvantaged Business Enterprise (DBE) - Minority Business Participation - Native American Participation - Small Business Participation - Service-Disabled Veteran Owned - Women-Owned Business Participation General Requirements - Insurance Required Bonding Requirements - Bid Bond 5 % - Performance Bond 100 % - Labor and Materials Bond 100 % The City of Durango reserves the right to reject any and all bids, to waive any informalities and minor irregularities in bids, and to accept the bid deemed, in the opinion of the City, to be in the best interest of the City of Durango.