Renovation of a water / sewer project in Diamond Springs, California. Completed plans call for the renovation of a water / sewer project.

Question Deadline 08/11/2025 at 5:00 PM PT Pre-bid communications and RFI are to be submitted to the email shown in online portal #9606804 "Project Q&A", emailed to: tyler.prince@edcgov.us with BID #2025-0107 - RFI as the subject, or in hard copy delivered to: County of El Dorado, Procurement & Contracts, 330 Fair Lane, Placerville, California 95667, BID #2025-0107 - RFI. Electrical, Buildings Rehabilitation/Renovation, Buildings/Public, Electrical and Controls, Electrical Equipment & Supplies, Construction, Electrical Installation/Construction, Control Panels Replacement/Repair/New Installation, Conduit/Electrical/Telemetry, Buildings Commercial and Private, Maintenance, Mechanical Systems, Materials, Equipment and Supplies, Miscellaneous, Instrumentation, Metal Fabrication. The fabrication of two (2) new control panels for the two (2) existing GEA Westfalia centrifuges, installation of the control panels, providing auxiliary equipment wiring to the control panels, programming, and testing for proper operation. The project is located at 5700 Union Mine Road, El Dorado, California 95623. The Work to be done as described in the Contract Documents generally consists of at a minimum: furnishing of all labor, materials, and equipment to fabricate, install, program, and test two (2) "complete" new control panels for GEA Model CA 450-00-02 existing decanters. The serial numbers are 8002-042 and 8003-630. The software must include functioning auto torque, clean in place flushing, and auto stop/ start functions as the originals were supplied with. In coordination with the County's Contract Administrator, the successful Bidder shall: _ Remove and dispose of the two (2) existing control panels. _ Fabricate and furnish (2) "like" control panels. The panels shall be NEMA 4X same as the originals, with most current logix controllers, panel view operator interface, variable frequency drives for scroll control, all necessary breakers, relays, and components, new drawings with bill of materials, and copies of new control panel programs for the County. All control panel components shall be new and include the most current technology available. Control panels shall be able to be controlled in automatic and manual modes. _ Install the two (2) new control panels. The project location has an overhead crane that the successful Bidder can use to set each control panel. _ Wire centrifuges to control panels and all auxiliary equipment including at a minimum, vibration detection, bearing temperature sensors, flush water, feed flowmeters, polymer injection, knife gates, and feed pump variable frequency drives. The successful Bidder shall use the existing wiring except that new wiring will be required for each bowl drive motor, each scroll drive motor, and each polymer system. _ Test centrifuges to ensure the new equipment is functioning properly, and that the programming controls all the equipment. Adjust program as needed for proper control. Attachment B, Centrifuge #1 Existing Control Panel Drawings and Attachment C, Centrifuge #2 Existing Control Panel Drawings, have been included in the bid documents to allow Bidders to view the existing designs for both panels. Attachment D, Photos of Existing Control Panels has been included in the bid documents to allow Bidders to view the existing set up and size of both panels. Attachment E, Prominent Poly Feeder Drawing has been included in the bid documents to ensure the successful Bidder fabricates and designs the control panels to communicate with the polymer injection systems. Event Pre Bid Meeting Description: The Bidder's representative will be required to sign an attendance sheet and provide the name of the firm being represented. The County will post on the online such Addenda as the County in its discretion considers necessary in response to questions arising and information presented at the Pre-Bid Site Visit. Oral statements shall not be relied upon and will not be binding or legally effective. Addenda issued as a result of the Pre-Bid Site Visit shall constitute the sole and exclusive record and statement of the results of the Pre-Bid Visit. Doc note: To access the electronic bid form, download the project/request documents and click the online bidding button at the top of the advertisement screen. Physical paper copies of the Contract Documents may be examined by appointment at the County of El Dorado, Chief Administrative Office, Procurement and Contracts Division located at 330 Fair Lane, Placerville, California 95667; however, the Chief Administrative Office will no longer issue paper copies of the Contract Documents to bidders. To view the Contract Documents in person, contact Tyler Prince by phone at 530-621-6438 or by email at tyler.prince@edcgov.us. By paying for and downloading the digital Contract Documents, interested bidders are automatically included on the online List. The list of online will be available on online." Those downloading the Contract Documents assume responsibility and risk for completeness of the downloaded Contract Documents. To be eligible to bid, interested parties must be included on the online List. ONLY CONTRACT DOCUMENTS DOWNLOADED FROM online AND SUBMITTED BY A BIDDER INCLUDED ON THE PLANHOLDERS LIST WILL BE CONSIDERED FOR BID SUBMITTAL. Westfalia Separator Project No: 900127/652355416