James e quarles water treatment plant taste & odor

The Cobb County-Marietta Water Authority is requesting sealed bids for taste and odor process improvements at the James E. Quarles Water Treatment Plant, with bids due August 31, 2021 and a mandatory pre-bid conference on August 9, 2021. Only bids including pre-qualified Instrumentation and Control System Integrators and approved electrical subcontractors will be considered — MR Systems, Inc. is the sole pre-qualified I&C integrator, and approved electrical subcontractors are Cleveland Electric Company, Crowder Construction Company, and Excel Electrical Technologies, Inc.

The scope encompasses installation of a 13-foot diameter PAC storage silo with 3,250 cubic feet capacity, a PAC slurry tank, three PAC slurry feed pumps with adjustable frequency drives, a CMU block and brick facade equipment and electrical building (approximately 400 square feet), ancillary instrumentation, PAC feed lines and injection assemblies to active raw water force mains, potable water backflow preventers for the entire site, replacement of the existing potable water meter vault with an H-20 traffic-rated vault, rerouting of existing storm water drainage pipes and utilities, system start-up and commissioning, SCADA system integration, and site civil improvements including landscaping and fence replacement. The work will be awarded in one contract.

Bidders must be Georgia-licensed utility and general contractors with supervisory personnel trained in Level 1A Georgia Erosion and Sediment Control. Each bid must include a 5% bid bond, notarized non-collusion affidavit, contractor's license certification, and security and immigration compliance certification. The successful bidder must furnish performance and payment bonds and comply with Georgia pre-construction oath and subcontractor affidavit requirements. Substantial completion is due within 360 consecutive calendar days and final completion within 390 consecutive calendar days from commencement. Contract documents were available for a non-refundable $20 fee.