Rosebud Lift Station Construction for Sewage and Waste Facilities

Amendment 6: 1. The purpose of this solicitation amendment A06 is to: a. Extend the offers due date. b. Update specifications. 2. The offers due date is extended to 03/23/2026. 3. The following

questions and answers affect the specifications: a. I was looking to bid this job and just had a question on sheet 10 it says to bring a conduit to the onsite generator. Is this pipe just stubbed out as a spare or is there a generator onsite? - Answer : The documents indicate a conduit connection to a generator; however, the existing power configuration for the lift station is not currently confirmed. At the start of construction, the contractor shall verify the existing power source serving the lift station and provide the necessary means and methods to establish electrical service to the new lift station. b. D.5 - Calls out an alternating relay J.9. Called out alternation on SCADA system - do they want a physical alternator or a PLC alternator - can't have both. - Answer : PLC Alternator c. K. Level Transmitter - calls out a level transmitter to the PLC, but I. says level control based on floats. Do they want level control based on floats or a transducer? Usually, we do a level transducer as the main control with floats as backup. They would be wired to the same PLC - Answer : Transducer Main and Float back-up. d. J. - SCADA System. The SCADA system called out is a Sensaphone SCADA 3000. I would change this to an Allen Bradley CompactLogix 5069 series PLC. More systems use this platform and brand of PLC. This will give them more options for support. Also would use Cloud 9 SCADA as the application for the SCADA system. This will allow Dakota Pump remote access for help troubleshooting the system remotely as well as give the operators access and alarm call-outs. This cloud 9 system would be supplied with a Cellular modem, which would include SCADA access, alarm call-outs and cellular data for the system. If we go this route, we could get rid of section L. Telephone communication. - Answer : The Allen‑Bradley CompactLogix 5069 Series PLC would be a suitable modification for this application, offering a more widely supported control platform that improves long-term serviceability, integration capability, and technical support options for the Service Unit. e. K. Would like to use a Dwyer 4-20 PBLT2 transducer. 0-15 PSI with 60' of cable. - Answer : This is fine. f. D. & F. - Pilot devices. Would use Siemens 22MM devices. Oil-tight NEMA 4 rated on the inside of the panel on the dead front door. All pilot devices and lights would be 22MM and Siemens brand. - Answer : This is fine. g. My controls and Scada team is going through the specifications and they are not finding page 13 in the plans that is referenced in the picture attached. Was this page not published? It appears there are only 12 pages of plans. - Answer : Actually should refer to sheet 10. 4. Remember to acknowledge all amendments. Block 11 of the

• SF-30 provides instructions for acknowledging amendments; it is acceptable to acknowledge on block 19 of the SF-1442. 5. All other terms and conditions remain unchanged. Amendment 5: 1. The purpose of this solicitation amendment A05 is to: - Extend the offers due date. - Change the pump description. 2. The offers due date is extended by one week to 03/16/2026. 3. The solicitation identified the Vaughan V3V pump as a submersible pump. A bidder notified the Government that this designation is incorrect. The Vaughan V3V is a vertical pump, not a submersible model. The solicitation is hereby amended as follows: - DELETE: Reference to the “Vaughan V3V” pump as a submersible pump. - REPLACE WITH: “Vaughan S3P” as the brand name or equal submersible pump model for this requirement. This correction aligns the specification with the Government’s intended pump type for the project. Offerors shall base their proposals on the corrected pump specification provided in this amendment. 4. Remember to acknowledge all amendments. Block 11 of the
• SF-30 provides instructions for acknowledging amendments; it is acceptable to acknowledge on block 19 of the SF-1442. 5. All other terms and conditions remain unchanged. Amendment 4: 1. The purpose of this solicitation amendment A04 is to: a. Extend the offers due date. b. Update attachment “J02b Consolidated QA RLSC” with the answers to

questions received after Amendment 3 up to the deadline of 02/23/2026. c. Add the SF-30 for Amendment 1 which was not included at that time. d. Remove the licensing requirement from Volume 1 -Technical Proposal, Factor 1 - Technical. 2. The offers due date is extended by one week to 03/09/2026. 3. Attachment “J02b Consolidated QA RLSC” is updated with the answers to

questions received after Amendment 3 up to the deadline of 02/23/2026. Added Q&A 16 to 24. 4. Added the

• SF-30 for Amendment 1 which was not included at that time. Added “MB01-A01 Replace Attachment”. 5. The licensing requirement is removed from Volume 1 -Technical Proposal Factor 1. The following text is removed "License. Demonstrate that is licensed by providing a copy of the Sewer and Water Contractor/Installer license." 6. Remember to acknowledge all amendments. Block 11 of the
• SF-30 provides instructions for acknowledging amendments; it is acceptable to acknowledge on block 19 of the SF-1442. 7. All other terms and conditions remain unchanged. Amendment 3: 1. The purpose of this solicitation amendment A03 is to: a. Post the conformed version of the RFP changing the following:
• - Replace the original “B01 RFP RLSC 75H70126R00018” with “B01-A03 Conformed RFP RLSC 75H70126R00018”. Changes are highlighted. - Amend block 11 of the
• SF-1442 changing the POP to 240 days. - Amend Section C, paragraph C to read 240 days. - Amend Section C to add paragraph I Notes on the Vaughan Model V3V/V3VR brand name or equal requirement. - Amend paragraph F.2(a) to read 240 calendar days. b. Add attachment J02a RB Geotech Report from 300 feet away. c. Replace attachment “J01 Plans RLSC 30Jan2026” with “J01 Plans RLSC 13Feb2026” fixing the coversheet. d. Add attachment “J02b Consolidated Q&A RLSC” posting the