Addendum No. 1 to ITB No. 26-2957-5EAR – Water Treatment Facility VFD Replacements

This is an addendum document issued by Henrico County, Virginia for ITB No. 26-2957-5EAR concerning the removal, disposal, and replacement of one Variable Frequency Drive (VFD) at the Raw Water Pump Station located at 1201 South Gaskins Road, Henrico, VA 23238. The scope of work includes provision and installation of a new VFD, all required electrical and control wiring and conduit, field verification and testing of existing field wires, and complete startup, testing, and commissioning of the new system. A non-mandatory pre-bid conference and site visit were scheduled for May 21, 2026 at 10:00 a.m. at the project site. Sealed bids were originally due June 10, 2026 at 3:00 p.m. but were extended to June 17, 2026 at 3:00 p.m. via subsequent addenda. Bids must be submitted through Henrico County's ProcureWare electronic portal, and bidders are required to acknowledge receipt of all addenda on their bid forms; failure to do so may result in bids being declared non-responsive.

The addendum clarifies technical requirements regarding control system integration, specifying that while most input/output points are existing with no additional control system integration required, each VFD requires integration of a new motor/pump vibration signal into the plant control system as identified on Drawing I-601. Henrico County will provide assistance to contractors in confirming the functionality of existing controls prior to and after VFD removal and installation per Specification 17441. Bid documents and drawings are available through ProcureWare at https://henrico.procureware.com/home. Technical questions should be submitted in writing through the Questions function in ProcureWare, with Eric Rosen, VCO Procurement Analyst III, serving as the primary contact at ros074@henrico.gov.