Site work for a water / sewer project in Hamilton, Ontario. Completed plans call for site work for a water / sewer project.

Bidders eligible to submit for this Request for Tenders have been previously selected through the process of Request for Prequalifications, issued under C14-11-23 which closed on January 26, 2024. The scope of work for Dundas Wastewater Treatment Plant (WWTP) includes but is not limited to the following: 1. Repair concrete spalls, scaling and cracks on boardwalks and slabs throughout the plant; 2. Repair steel beam fireproofing in the basement of control building for Plant B; 3. Apply epoxy coating to the concrete within the ferric chemical containment area; 4. Replace the existing steel guardrail within the digester building, control buildings, and throughout Plant A with a new fiberglass reinforced plastic (FRP) guardrails that meets the current OBC requirements; 5. Install a new FRP guardrail around the plant inlet chamber; 6. Upgrade the existing aluminum railing throughout the plant to ensure it meets the OBC requirements including base plate modifications and kick plate installation; 7. Replace the four existing wooden baffles within the primary clarifier of Plant B with equivalent FRP baffles; 8. Replace the eight existing wooden baffles within the secondary clarifier of Plant B with equivalent FRP baffles; 9. Replace the entire existing wooden baffle within the grit building with an equivalent FRP baffle; 10.Replace the existing wooden baffle within the chlorine contact tank of Plant A with an equivalent FRP baffle; 11.Replace the existing handwheel actuated scum collection system within the primary clarifier of Plant B with a new lever actuated scum collection system; 12.Replace the existing return sludge piping above the aeration tanks in Plant B including the pipe hangers and two manually operated valves; 13.Replace the two exiting access hatches above the basement of the Plant B control building with new access hatches that require a key/tool for external entry; 14.Install new railing mounted hatch locking system above six access hatches for buried chambers throughout the plant as identified in the contract documents; 15.Install steel clips to secure walkway grating throughout the plant; 16.Review completed DSS report and provide and implement a designated substance removal/ safe work plan 17.Remove the asbestos cladding on the outside of the digester valve building. 18.Replace the existing diffusers and associated piping in the Aeration Tanks of both Plant A and B including pipe/diffuser supports and isolation valves; 19.Provide temporary bypass pumping to support concrete repairs; 20.Provide temporary RAS piping to support aeration tank isolations; 21.Replace screening building inlet gate; 22.Replace sluice gate isolation valve between cell 1 and cell 2 of Plant A Aeration tanks; 23.Replace Plant A inlet channel slide plate; 24.Replace Plant B inlet channel slide plate; 25.Install aluminum stairs from the driveway to the west side of the Ferric building, inside the Ferric Building and within the Plant B control building; and 26.Replace the aluminum staircases in the basement of Plant B Control building. Documents can be obtained at: https://hamilton.bidsandtenders.ca Question Deadline: Tue Jan 21, 2025 11:59:00 PM (EST) Generally, the Work under this Contract includes, but is not limited to, the following: .1 Repair concrete spalls, scaling and cracks on boardwalks and slabs throughout the plant. Repair steel beam fireproofing in the basement of control building for Plant B. Apply epoxy coating to the concrete within the ferric chemical containment area. Replace the existing steel guardrail within the digester building, control buildings, and throughout Plant A with a new fiberglass reinforced plastic (FRP) or aluminum guardrails that meets the current OBC requirements. Install a new FRP guardrail around the plant inlet chamber. Upgrade the existing aluminum railing throughout the plant to ensure it meets the OBC requirements including base plate modifications and kick plate installation. .7 .8 .9 CITY OF HAMILTON C13-32-24 DUNDAS WASTEWATER TREATMENT PLANT (WWTP) HEALTH AND SAFETY IMMEDIATE NEEDS AND STRUCTURAL REPAIR UPGRADES 01100 SUMMARY OF WORK Page 2 of 7 Replace the four existing wooden baffles within the primary clarifier of Plant B with equivalent FRP baffles. Replace the eight existing wooden baffles within the secondary clarifier of Plant B with equivalent FRP baffles. Replace the entire existing wooden baffle within the grit building with an equivalent FRP baffle. . 10 Replace the existing wooden baffle within the chlorine contact tank of Plant A with an equivalent FRP baffle. .11 Replace the existing handwheel actuated scum collection system within the primary clarifier of Plant B with a new lever actuated scum collection system. .12 Replace the existing return sludge piping above the aeration tanks in Plant B including the pipe hangers and two manually operated valves. . 13 Replace the two exiting access hatches above the basement of the Plant B control building with new access hatches that require a key/tool for external entry. .14 Install new railing mounted hatch locking system above six access hatches for buried chambers throughout the plant as identified in the X contract documents. .15 Install steel clips to secure walkway grating throughout the plant. .16 Review completed DSS report and provide and implement a designated substance removal/ safe work plan. .17 Replace the existing diffusers and associated piping in the Aeration Tanks of both Plant A and B including pipe/diffuser supports and isolation valves. .18 Provide temporary bypass pumping to support concrete repairs. .19 Provide temporary RAS piping to support aeration tank isolations. .20 Replace screening building inlet gate. .21 Replace sluice gate isolation valve between cell 1 and cell 2 of Plant A Aeration tanks .22 Replace Plant A inlet channel slide plate. .23 Replace Plant B inlet channel slide plate. .24 Install aluminum stairs, inside the Ferric Building and within the Plant B control building .25 Install aluminum stairs from the driveway to the west side of the Ferric building. .26 Replace light fixtures within the Digester Valve building .27 Removal, safe disposal and replacement of existing expansion joint per the inlet channel west of the Plant B Primary Clarifier building (Provisional Item 4.1). .28 Draining & cleaning of each isolated cell prior to the existing condition inspection including any sludge removal and disposal. .29 Additional Vacuum Truck Services including haulage and disposal. As directed by the Engineer. Over and above what is specified within these specifications (Provisional Item 4.2).