Pump Stations Chemical System Improvements

As of December 01st, 2022, project has not been awarded yet. No timeline of award was established. For furnishing all labor, materials, equipment, and services for the construction of improvements designated as: Pump Stations Chemical System Improvements Project The project consists of mechanical, electrical, instrumentation, and structural improvements to the Newark Pump Station (NPS) and Irvington Pump Station (IPS). More specifically, the work includes, but is not limited to, the following work elements: o Demolition of existing vapor phase odor control system and roof-mounted exhaust fan at NPS. o Installation of new odor control engineered media biofilter serving NPS odor sources along with remote odor control exhaust fan with variable frequency drive (VFD) unit and two (2) stack fans and stack at NPS. o Replacement of existing supply air fan with new supply air fan at NPS. o Replacement of chemical bulk storage tank along with level instrumentation and controls at NPS. o Replacement of the two (2) chemical metering pumps along with new VFDs at NPS. o Replacement of chemical dosing piping with new double containment piping with leak detection in existing utility trench from metering pumps to intermediate level of the dry well side of the pump station building at NPS. o Rehabilitation and recoating the chemical bulk storage containment area at NPS. o Providing of stair tower access to pump station roof and providing guard railing at existing roof parapet at NPS. o Rebalancing of supply air and exhaust air flow rates from the existing pump station facility at NPS. o Cathodic protection repair of raw sewage (RS) pipe joint at NPS. o Miscellaneous electrical and instrumentation improvements at NPS. o Demolition of existing odor control chemical packed tower scrubber system at IPS. o Providing temporary odor control system at IPS. o Demolition of existing concrete equipment pit currently housing the odor control system and chemical dosing metering pumps at IPS. o Installation of new odor control engineered media biofilter serving IPS odor sources along with new odor control exhaust fan with VFD and two (2) stack fans and stack at IPS. o Replacement of chemical dosing piping with new double containment piping with leak detection placed in new utility trench routed from chemical bulk storage containment area to existing valve vault at IPS. o Relocation of the two (2) existing chemical metering pumps to the existing chemical bulk storage containment area to be expanded and provide with new VFDs at IPS. o Rehabilitation and recoating the chemical bulk storage containment area at IPS. o Rehabilitation of corroded section of existing RS piping with welded steel patch at location of existing unused ferrous chloride injection point at IPS. o Installation of new RS bypass piping including piping, supports, platform access, cathodic protection, flow meter, throttling valve, and accessories to allow controlled bypass around the existing surge tower to the existing Equalization Basins at IPS. o Repair and rehabilitation of corroded components located in the existing valve vault at IPS. o Providing of bridge access to pump station roof from new biofilter structure and providing guard railing at existing roof parapet at IPS. o Rebalancing of supply air and exhaust air flow rates from the existing pump station facility at IPS. o Replacement of eleven gate valves and actuators at the raw sewage pumps 1 through 4 inlet and discharge piping along with the downstream header system with knife gate valves and actuators at IPS. Refurbishing of four existing gate vales at pumps 5 and 6. o Installation of new Training Facility components including interconnecting piping, concrete box, valves, and manholes at IPS. o Miscellaneous electrical and instrumentation improvements at IPS. The successful bidder will have six hundred and fifty - five (655) calendar days to complete the Project from the Notice to Proceed. Under California Laws and Regulations, the District shall inform all prime contractors of public works, to the extent feasible of relevant public work requirements as listed in Section 00010 of the Contract Documents. All bidders shall consider and incorporate measures to ensure compliance with all applicable state and county health orders, including but not limited to Alameda County Health Order No. 20 14a, as may be updated from time to time (County Health Order), and the Construction Project Safety Protocols in Appendix B to the County Health Order. Among other things, compliance shall include but is not limited to the designation of a site-specific COVID-19 officer or supervisor, daily screening protocols, the implementation of social distancing, the provision of personal protective equipment (PPE) and requirement to wear face coverings, the implementation of cleaning and sanitizing requirements, and posting of signage and notices. For Large Construction Projects, compliance also includes but is not limited to preparation of a new or updated Site-Specific Health and Safety Plan and designation of a site-specific COVID 19 Third-Party Jobsite Safety Accountability Supervisor. Pre-Qualification for Bidders: Not Required License Type Required: Valid Class A Liquidated Damages: $2,000.00 Per Calendar Day Bid Bond Percentage: 10% Bidders may pay for plans and specs by sending a check made out to Union Sanitary District, 5072 Benson Road, Union City, California 94587, or by going to our website for payment by VISA or MASTERCARD credit card. All bidders submitting a bid must purchase and receive a paper copy of the Project Manual of Pump Stations Chemical System Improvements Project, Project No. 800-550 from the District prior to the bid opening date. All submitted bids must be on bid forms included in the purchased paper copy of the Project Manual or subsequent addenda. A bid submitted to the District by a bidder who has not purchased and received a paper copy of the Project Manual of Pump Stations Chemical System Improvements Project, Project No. 800-550, or submitted on bid forms not included in the purchased paper copy of the Project Manual or subsequent addenda shall be considered non-responsive and shall be rejected by the District. Each bid must conform and be responsive to the invitation, the Plans and Specifications, and all documents comprising the Contract Documents. Each bid shall be presented under sealed cover and shall be accompanied by a certified check or bidder's bond, made payable to the District, in an amount not less than ten percent (10%) of the bid. The said check or bidder's bond shall be given as a guarantee that the successful bidder will execute the contract in conformity with the form of agreement contained within the contract documents, and will furnish bonds and insurance policies as specified within ten (10) days after notification of the award of the Contract to the successful bidder. Cost for work described in each addenda issued during the time of bidding shall be included in the Bid and the addenda shall become a part of the Contract documents. Bidders shall develop and submit bids at their own expense. The District will not reimburse any costs associated with the development and submittal of any and all Bids. The District reserves the sole right to reject any and all bids and to waive any informality in a bid. No bidder may withdraw its bid for a period of ninety (90) days after the date set for the opening thereof. At the successful Contractor's option, securities may be substituted for the required retention, in accordance with the provisions of Section 22300 of the State of California Public Contract Code. In accordance with the provisions of California Public Contract Code Section 3300, the District has determined that the Contractor shall possess, as a minimum, a valid Class A License. In accordance with the provisions of California Business and Professions Code Section 7028.15, a bid submitted to the District by a Contractor who is not licensed in accordance with Chapter 9 of the California Business and Professions Code shall be considered non-responsive and shall be rejected by the District. Questions concerning this project should be directed to: Union Sanitary District Attn: Thomas Lam 5072 Benson Road Union City, CA 94587 Phone: (510) 477-7609

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Plumbing, Common Work Results for Plumbing.