Main Wastewater Treatment Plant Secondary Clarifier Rehabilitation Phase 4 project, SD-459.
Work includes:
(1) Rehabilitating Clarifiers 4 and 11 by replacing the clarifier equipment, refurbishing the
bridge, resurfacing the concrete surfaces, rebuilding drives, refurbishing influent gates, and
replacing electrical equipment,
(2) installing new sump pits at 5 clarifiers,
(3) installing new sump pumps at 6 clarifiers,
(4) providing new 120V, 208V, and 480V and control wiring for Clarifiers 8, 11, and 12,
(5) inspecting clarifier return activated sludge pipeline and providing Cure-In-Place Piping
rehabilitation if required for 2 clarifiers,
(6) inspecting the closed conduit secondary effluent channel,
(7) regrading and replacing the soil adjacent to the clarifiers with new material, and
(8) replacing actuators on the influent gates at 8 clarifiers.
This project will require multiple trades and types of work; for example (note: this list is not all inclusive): demolition, saw-cutting, Cast-in-Place Concrete, concrete coring, hazardous materials handling, grading, excavation, fill, concrete, concrete reinforcement, grouting, structural steel, metal fabrications, flange bolting, anchor systems, expansion joints, Glass-Fiber-Reinforced Plastic, painting & coatings, bolting, welding, mechanical, electrical, Electric Valve Actuator, pipeline, plumbing, Submersible Sump Pumps, excavation, utilities, landscaping, Secondary Clarifier Equipment, process integration, and other required work and trades. For additional description and information, see Document 00 41 01 – Bid Form, Document 00 41 05 – Description of Bid Items, Section 01 11 00 – Summary of Work, and the remaining contract documents.
All work covered by the contract shall be completed within three hundred (300) calendar days after the issuance of the Notice to Proceed
EBMUD Contract Equity Program is in effect on this project. District contracting objectives are: Construction 25% White Men; 9% White Women, 25% Ethnic Minorities (Men and Women).
