Solicitation for multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 697DCK-25-R-00354

Multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 512 Division Street, Farmington, MN 55024 ATTENTION: This overall project will consist of multiple projects at the same facility. Contractors can bid on all, one, or some of the line items found within the solicitation. Award or multiple awards will be made based on Lowest Priced Technically Acceptable (LPTA). The Projects are defined by the Contract Documents and consist of the following: 1. Replace Two (2) Chilled Water Flow Control Valves and One (1) Condenser Water Flow Control Valve. 2. Remove and replace Epoxy Floor in the Boiler Room. 3. Remove and replace four (4) exterior doors in Power Service Building and Maintenance Garage. 4. Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 5. Remove and replace HU-380 Humidifier. 6. Remove and replace AHU-12 and AHU-13 Humidifiers. 7. Remove existing red-light and white strobe lights and replace with new dual LED lighting system. 8. Remove and replace power panels. 9. Remove and replace two (2) boiler vent stacks. 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue 10. Resurface Exterior Concrete Floor and Adjust Concrete Curb. Requests to attend site visit are due: Noon Central Time on July 08, 2025 Site Visit is being held on: July 09, 2025 @ 9AM Central Time Questions are due by: July 14, 2025 at Noon Central Time Proposals are due by: July 31, 2025 at Noon Central time

Amendment 01: Purpose of Amendment 01 is to remove 6 of the 10 projects from this solicitation moving forward: FIRST: The following projects are no longer apart of this solicitation and zero proposals will be received for them: 1. 00001 Replace two (2) Chilled Water Flow Control Valves and one (1) Condenser Water Flow Control Valve. 2. 00004 Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 3. 00005 Remove and replace HU-380 Humidifier 4. 00006 Remove and replace AHU-12 and AHU-13Humidifiers 5. 00008 Remove and replace power panels 6. 00009 Remove and replace two (2) boiler vent stacks 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue ***************************** SECOND: Due to FIRST above, the following attachments are no longer applicable: 1. J-1a, ZMP Chilled Water Valve Replacement Specifications 2. J-1b, ZMP Chilled Water Valve Replacement Drawings 3. J-1c, ZMP Chilled Water Valve Replacement EOSH Impacts 4. J-4a, ZMP PSB Gas Unit Heater Replacement Specifications 5. J-4b, ZMP PSB Gas Unit Heater Replacement Drawings 6. J-4c, ZMP PSB Gas Unit Heater Replacement EOSH Impacts 7. J-5, ZMP Humidifier HU-380 remove and replace 8. J-6a, ZMP AHU-12 and AHU-13 Humidifiers remove and replace specifications 9. J-6b, ZMP AHU-12 and AHU-13 Humidifiers remove and replace drawings 10. J-6c, ZMP AHU 12 13 EOSH Impacts 11. J-8a, ZMP Replace Electrical Panels specifications 12. J-8b, ZMP Replace Electrical Panels drawings 13. J-8c, ZMP Various Power Panel Replace EOSH Impacts 14. J-9a, ZMP Replace 2 Boiler Vent Stacks Scope of Work 15. J-9b, ZMP Replace 2 Boiler Vent Stacks specification 16. J-9c, ZMP Replace 2 Boiler Vent Stacks Drawing 1 17. J-9d, ZMP Replace 2 Boiler Vent Stacks Drawing 2 18. J-9e, ZMP Replace 2 Boiler Vent Stacks EOSH Impacts 19. J-11, FAA Std 019 Lightning and Surge Protection, etc. 20. J-12, FAA-C-1217H Chg 2 Electrical Work Premises Wiring ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. Multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 512 Division Street, Farmington, MN 55024 ATTENTION: This overall project will consist of multiple projects at the same facility. Contractors can bid on all, one, or some of the line items found within the solicitation. Award or multiple awards will be made based on Lowest Priced Technically Acceptable (LPTA). The Projects are defined by the Contract Documents and consist of the following: 1. Replace Two (2) Chilled Water Flow Control Valves and One (1) Condenser Water Flow Control Valve. 2. Remove and replace Epoxy Floor in the Boiler Room. 3. Remove and replace four (4) exterior doors in Power Service Building and Maintenance Garage. 4. Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 5. Remove and replace HU-380 Humidifier. 6. Remove and replace AHU-12 and AHU-13 Humidifiers. 7. Remove existing red-light and white strobe lights and replace with new dual LED lighting system. 8. Remove and replace power panels. 9. Remove and replace two (2) boiler vent stacks. 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue 10. Resurface Exterior Concrete Floor and Adjust Concrete Curb. Requests to attend site visit are due: Noon Central Time on July 08, 2025 Site Visit is being held on: July 09, 2025 @ 9AM Central Time Questions are due by: July 14, 2025 at Noon Central Time Proposals are due by: July 31, 2025 at Noon Central time

Amendment 02 Purpose of amendment 02 is release the official Question and Answer (Q&A) and additional attachment as described below: FIRST: The official Q&A is hereby released for this solicitation as attachment J-16. ******************************* SECOND: Due to FIRST above, attachment J-17, Excerpt_ZMP_RCLR_ID01922_Tower Assessment Report_2024_DNC is hereby included in this opportunity. ******************************* THIRD: All other terms and conditions remainunchanged and in full effect. ***************************************************************************************** Amendment 01: Purpose of Amendment 01 is to remove 6 of the 10 projects from this solicitation moving forward: FIRST: The following projects are no longer apart of this solicitation and zero proposals will be received for them: 1. 00001 Replace two (2) Chilled Water Flow Control Valves and one (1) Condenser Water Flow Control Valve. 2. 00004 Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 3. 00005 Remove and replace HU-380 Humidifier 4. 00006 Remove and replace AHU-12 and AHU-13Humidifiers 5. 00008 Remove and replace power panels 6. 00009 Remove and replace two (2) boiler vent stacks 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue ***************************** SECOND: Due to FIRST above, the following attachments are no longer applicable: 1. J-1a, ZMP Chilled Water Valve Replacement Specifications 2. J-1b, ZMP Chilled Water Valve Replacement Drawings 3. J-1c, ZMP Chilled Water Valve Replacement EOSH Impacts 4. J-4a, ZMP PSB Gas Unit Heater Replacement Specifications 5. J-4b, ZMP PSB Gas Unit Heater Replacement Drawings 6. J-4c, ZMP PSB Gas Unit Heater Replacement EOSH Impacts 7. J-5, ZMP Humidifier HU-380 remove and replace 8. J-6a, ZMP AHU-12 and AHU-13 Humidifiers remove and replace specifications 9. J-6b, ZMP AHU-12 and AHU-13 Humidifiers remove and replace drawings 10. J-6c, ZMP AHU 12 13 EOSH Impacts 11. J-8a, ZMP Replace Electrical Panels specifications 12. J-8b, ZMP Replace Electrical Panels drawings 13. J-8c, ZMP Various Power Panel Replace EOSH Impacts 14. J-9a, ZMP Replace 2 Boiler Vent Stacks Scope of Work 15. J-9b, ZMP Replace 2 Boiler Vent Stacks specification 16. J-9c, ZMP Replace 2 Boiler Vent Stacks Drawing 1 17. J-9d, ZMP Replace 2 Boiler Vent Stacks Drawing 2 18. J-9e, ZMP Replace 2 Boiler Vent Stacks EOSH Impacts 19. J-11, FAA Std 019 Lightning and Surge Protection, etc. 20. J-12, FAA-C-1217H Chg 2 Electrical Work Premises Wiring ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 512 Division Street, Farmington, MN 55024 ATTENTION: This overall project will consist of multiple projects at the same facility. Contractors can bid on all, one, or some of the line items found within the solicitation. Award or multiple awards will be made based on Lowest Priced Technically Acceptable (LPTA). The Projects are defined by the Contract Documents and consist of the following: 1. Replace Two (2) Chilled Water Flow Control Valves and One (1) Condenser Water Flow Control Valve. 2. Remove and replace Epoxy Floor in the Boiler Room. 3. Remove and replace four (4) exterior doors in Power Service Building and Maintenance Garage. 4. Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 5. Remove and replace HU-380 Humidifier. 6. Remove and replace AHU-12 and AHU-13 Humidifiers. 7. Remove existing red-light and white strobe lights and replace with new dual LED lighting system. 8. Remove and replace power panels. 9. Remove and replace two (2) boiler vent stacks. 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue 10. Resurface Exterior Concrete Floor and Adjust Concrete Curb. Requests to attend site visit are due: Noon Central Time on July 08, 2025 Site Visit is being held on: July 09, 2025 @ 9AM Central Time Questions are due by: July 14, 2025 at Noon Central Time Proposals are due by: July 31, 2025 at Noon Central time

Amendment 03 FIRST: The official question and answers (Q&A) are hereby updated and released to include three additional questions. **************************** SECOND: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 02 Purpose of amendment 02 is release the official Question and Answer (Q&A) and additional attachment as described below: FIRST: The official Q&A is hereby released for this solicitation as attachment J-16. ******************************* SECOND: Due to FIRST above, attachment J-17, Excerpt_ZMP_RCLR_ID01922_Tower Assessment Report_2024_DNC is hereby included in this opportunity. ******************************* THIRD: All other terms and conditions remainunchanged and in full effect. ***************************************************************************************** Amendment 01: Purpose of Amendment 01 is to remove 6 of the 10 projects from this solicitation moving forward: FIRST: The following projects are no longer apart of this solicitation and zero proposals will be received for them: 1. 00001 Replace two (2) Chilled Water Flow Control Valves and one (1) Condenser Water Flow Control Valve. 2. 00004 Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 3. 00005 Remove and replace HU-380 Humidifier 4. 00006 Remove and replace AHU-12 and AHU-13Humidifiers 5. 00008 Remove and replace power panels 6. 00009 Remove and replace two (2) boiler vent stacks 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue ***************************** SECOND: Due to FIRST above, the following attachments are no longer applicable: 1. J-1a, ZMP Chilled Water Valve Replacement Specifications 2. J-1b, ZMP Chilled Water Valve Replacement Drawings 3. J-1c, ZMP Chilled Water Valve Replacement EOSH Impacts 4. J-4a, ZMP PSB Gas Unit Heater Replacement Specifications 5. J-4b, ZMP PSB Gas Unit Heater Replacement Drawings 6. J-4c, ZMP PSB Gas Unit Heater Replacement EOSH Impacts 7. J-5, ZMP Humidifier HU-380 remove and replace 8. J-6a, ZMP AHU-12 and AHU-13 Humidifiers remove and replace specifications 9. J-6b, ZMP AHU-12 and AHU-13 Humidifiers remove and replace drawings 10. J-6c, ZMP AHU 12 13 EOSH Impacts 11. J-8a, ZMP Replace Electrical Panels specifications 12. J-8b, ZMP Replace Electrical Panels drawings 13. J-8c, ZMP Various Power Panel Replace EOSH Impacts 14. J-9a, ZMP Replace 2 Boiler Vent Stacks Scope of Work 15. J-9b, ZMP Replace 2 Boiler Vent Stacks specification 16. J-9c, ZMP Replace 2 Boiler Vent Stacks Drawing 1 17. J-9d, ZMP Replace 2 Boiler Vent Stacks Drawing 2 18. J-9e, ZMP Replace 2 Boiler Vent Stacks EOSH Impacts 19. J-11, FAA Std 019 Lightning and Surge Protection, etc. 20. J-12, FAA-C-1217H Chg 2 Electrical Work Premises Wiring ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 512 Division Street, Farmington, MN 55024 ATTENTION: This overall project will consist of multiple projects at the same facility. Contractors can bid on all, one, or some of the line items found within the solicitation. Award or multiple awards will be made based on Lowest Priced Technically Acceptable (LPTA). The Projects are defined by the Contract Documents and consist of the following: 1. Replace Two (2) Chilled Water Flow Control Valves and One (1) Condenser Water Flow Control Valve. 2. Remove and replace Epoxy Floor in the Boiler Room. 3. Remove and replace four (4) exterior doors in Power Service Building and Maintenance Garage. 4. Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 5. Remove and replace HU-380 Humidifier. 6. Remove and replace AHU-12 and AHU-13 Humidifiers. 7. Remove existing red-light and white strobe lights and replace with new dual LED lighting system. 8. Remove and replace power panels. 9. Remove and replace two (2) boiler vent stacks. 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue 10. Resurface Exterior Concrete Floor and Adjust Concrete Curb. Requests to attend site visit are due: Noon Central Time on July 08, 2025 Site Visit is being held on: July 09, 2025 @ 9AM Central Time Questions are due by: July 14, 2025 at Noon Central Time Proposals are due by: July 31, 2025 at Noon Central time

Amendment 04 Purpose of this modification is to offer an additional site visit and update the milestone dates as described in the following: FIRST: A second site visit is being offered on July 28, 2025, at 9:00AM Central Time. Requests to attend are due by July 25, 2025 12:00PM Central Time. A real ID is required by all attendees and will be strictly enforced. ********************************** SECOND: Due to FIRST above, additional questions will be accepted and will be due on July 30th, 2025 at 12:00PM Central Time. Late questions will not be accepted. ********************************** THIRD: Due to FIRST and SECOND above, proposals will be due on August 8th, 2025 at 12:00PM Central Time. Late proposals will not be accepted after this time. ********************************** FOURTH: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 03 FIRST: The official question and answers (Q&A) are hereby updated and released to include three additional questions. **************************** SECOND: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 02 Purpose of amendment 02 is release the official Question and Answer (Q&A) and additional attachment as described below: FIRST: The official Q&A is hereby released for this solicitation as attachment J-16. ******************************* SECOND: Due to FIRST above, attachment J-17, Excerpt_ZMP_RCLR_ID01922_Tower Assessment Report_2024_DNC is hereby included in this opportunity. ******************************* THIRD: All other terms and conditions remainunchanged and in full effect. ***************************************************************************************** Amendment 01: Purpose of Amendment 01 is to remove 6 of the 10 projects from this solicitation moving forward: FIRST: The following projects are no longer apart of this solicitation and zero proposals will be received for them: 1. 00001 Replace two (2) Chilled Water Flow Control Valves and one (1) Condenser Water Flow Control Valve. 2. 00004 Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 3. 00005 Remove and replace HU-380 Humidifier 4. 00006 Remove and replace AHU-12 and AHU-13Humidifiers 5. 00008 Remove and replace power panels 6. 00009 Remove and replace two (2) boiler vent stacks 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue ***************************** SECOND: Due to FIRST above, the following attachments are no longer applicable: 1. J-1a, ZMP Chilled Water Valve Replacement Specifications 2. J-1b, ZMP Chilled Water Valve Replacement Drawings 3. J-1c, ZMP Chilled Water Valve Replacement EOSH Impacts 4. J-4a, ZMP PSB Gas Unit Heater Replacement Specifications 5. J-4b, ZMP PSB Gas Unit Heater Replacement Drawings 6. J-4c, ZMP PSB Gas Unit Heater Replacement EOSH Impacts 7. J-5, ZMP Humidifier HU-380 remove and replace 8. J-6a, ZMP AHU-12 and AHU-13 Humidifiers remove and replace specifications 9. J-6b, ZMP AHU-12 and AHU-13 Humidifiers remove and replace drawings 10. J-6c, ZMP AHU 12 13 EOSH Impacts 11. J-8a, ZMP Replace Electrical Panels specifications 12. J-8b, ZMP Replace Electrical Panels drawings 13. J-8c, ZMP Various Power Panel Replace EOSH Impacts 14. J-9a, ZMP Replace 2 Boiler Vent Stacks Scope of Work 15. J-9b, ZMP Replace 2 Boiler Vent Stacks specification 16. J-9c, ZMP Replace 2 Boiler Vent Stacks Drawing 1 17. J-9d, ZMP Replace 2 Boiler Vent Stacks Drawing 2 18. J-9e, ZMP Replace 2 Boiler Vent Stacks EOSH Impacts 19. J-11, FAA Std 019 Lightning and Surge Protection, etc. 20. J-12, FAA-C-1217H Chg 2 Electrical Work Premises Wiring ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 512 Division Street, Farmington, MN 55024 ATTENTION: This overall project will consist of multiple projects at the same facility. Contractors can bid on all, one, or some of the line items found within the solicitation. Award or multiple awards will be made based on Lowest Priced Technically Acceptable (LPTA). The Projects are defined by the Contract Documents and consist of the following: 1. Replace Two (2) Chilled Water Flow Control Valves and One (1) Condenser Water Flow Control Valve. 2. Remove and replace Epoxy Floor in the Boiler Room. 3. Remove and replace four (4) exterior doors in Power Service Building and Maintenance Garage. 4. Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 5. Remove and replace HU-380 Humidifier. 6. Remove and replace AHU-12 and AHU-13 Humidifiers. 7. Remove existing red-light and white strobe lights and replace with new dual LED lighting system. 8. Remove and replace power panels. 9. Remove and replace two (2) boiler vent stacks. 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue 10. Resurface Exterior Concrete Floor and Adjust Concrete Curb. Requests to attend site visit are due: Noon Central Time on July 08, 2025 Site Visit is being held on: July 09, 2025 @ 9AM Central Time Questions are due by: July 14, 2025 at Noon Central Time Proposals are due by: July 31, 2025 at Noon Central time

Amendment 05 Purpose of amendment 05 is to release the second site visit sign-in sheet and photos of the site as described in the following: FIRST: The second site visit was held on Monday, July 28th and the sign-in sheet (Sign-in Roster_28 July 2025) is hereby release for all perspective bidders. ***************************** SECOND: Due to photos not allowed at the site, the following photos have been released to all perspective bidders: 1. Concrete Curb Photos 2. Epoxy Boiler Room 3. Exterior Doors 4. Exterior Stairs and Concrete Work 5. Tower Lights ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 04 Purpose of this modification is to offer an additional site visit and update the milestone dates as described in the following: FIRST: A second site visit is being offered on July 28, 2025, at 9:00AM Central Time. Requests to attend are due by July 25, 2025 12:00PM Central Time. A real ID is required by all attendees and will be strictly enforced. ********************************** SECOND: Due to FIRST above, additional questions will be accepted and will be due on July 30th, 2025 at 12:00PM Central Time. Late questions will not be accepted. ********************************** THIRD: Due to FIRST and SECOND above, proposals will be due on August 8th, 2025 at 12:00PM Central Time. Late proposals will not be accepted after this time. ********************************** FOURTH: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 03 FIRST: The official question and answers (Q&A) are hereby updated and released to include three additional questions. **************************** SECOND: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 02 Purpose of amendment 02 is release the official Question and Answer (Q&A) and additional attachment as described below: FIRST: The official Q&A is hereby released for this solicitation as attachment J-16. ******************************* SECOND: Due to FIRST above, attachment J-17, Excerpt_ZMP_RCLR_ID01922_Tower Assessment Report_2024_DNC is hereby included in this opportunity. ******************************* THIRD: All other terms and conditions remainunchanged and in full effect. ***************************************************************************************** Amendment 01: Purpose of Amendment 01 is to remove 6 of the 10 projects from this solicitation moving forward: FIRST: The following projects are no longer apart of this solicitation and zero proposals will be received for them: 1. 00001 Replace two (2) Chilled Water Flow Control Valves and one (1) Condenser Water Flow Control Valve. 2. 00004 Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 3. 00005 Remove and replace HU-380 Humidifier 4. 00006 Remove and replace AHU-12 and AHU-13Humidifiers 5. 00008 Remove and replace power panels 6. 00009 Remove and replace two (2) boiler vent stacks 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue ***************************** SECOND: Due to FIRST above, the following attachments are no longer applicable: 1. J-1a, ZMP Chilled Water Valve Replacement Specifications 2. J-1b, ZMP Chilled Water Valve Replacement Drawings 3. J-1c, ZMP Chilled Water Valve Replacement EOSH Impacts 4. J-4a, ZMP PSB Gas Unit Heater Replacement Specifications 5. J-4b, ZMP PSB Gas Unit Heater Replacement Drawings 6. J-4c, ZMP PSB Gas Unit Heater Replacement EOSH Impacts 7. J-5, ZMP Humidifier HU-380 remove and replace 8. J-6a, ZMP AHU-12 and AHU-13 Humidifiers remove and replace specifications 9. J-6b, ZMP AHU-12 and AHU-13 Humidifiers remove and replace drawings 10. J-6c, ZMP AHU 12 13 EOSH Impacts 11. J-8a, ZMP Replace Electrical Panels specifications 12. J-8b, ZMP Replace Electrical Panels drawings 13. J-8c, ZMP Various Power Panel Replace EOSH Impacts 14. J-9a, ZMP Replace 2 Boiler Vent Stacks Scope of Work 15. J-9b, ZMP Replace 2 Boiler Vent Stacks specification 16. J-9c, ZMP Replace 2 Boiler Vent Stacks Drawing 1 17. J-9d, ZMP Replace 2 Boiler Vent Stacks Drawing 2 18. J-9e, ZMP Replace 2 Boiler Vent Stacks EOSH Impacts 19. J-11, FAA Std 019 Lightning and Surge Protection, etc. 20. J-12, FAA-C-1217H Chg 2 Electrical Work Premises Wiring ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 512 Division Street, Farmington, MN 55024 ATTENTION: This overall project will consist of multiple projects at the same facility. Contractors can bid on all, one, or some of the line items found within the solicitation. Award or multiple awards will be made based on Lowest Priced Technically Acceptable (LPTA). The Projects are defined by the Contract Documents and consist of the following: 1. Replace Two (2) Chilled Water Flow Control Valves and One (1) Condenser Water Flow Control Valve. 2. Remove and replace Epoxy Floor in the Boiler Room. 3. Remove and replace four (4) exterior doors in Power Service Building and Maintenance Garage. 4. Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 5. Remove and replace HU-380 Humidifier. 6. Remove and replace AHU-12 and AHU-13 Humidifiers. 7. Remove existing red-light and white strobe lights and replace with new dual LED lighting system. 8. Remove and replace power panels. 9. Remove and replace two (2) boiler vent stacks. 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue 10. Resurface Exterior Concrete Floor and Adjust Concrete Curb. Requests to attend site visit are due: Noon Central Time on July 08, 2025 Site Visit is being held on: July 09, 2025 @ 9AM Central Time Questions are due by: July 14, 2025 at Noon Central Time Proposals are due by: July 31, 2025 at Noon Central time

Amendment 06 Purpose of amendment 06 is to hereby release the Question and Answer (Q&A) as described in the following: FIRST: The Final Q&A entitled, "J-16_QA for ZMP Multiple Project_Final_7.31.2025" is hereby released. ****************************** SECOND: The proposal due date remains unchanged with a date of August 08, 2025, at Noon Central time. ****************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 05 Purpose of amendment 05 is to release the second site visit sign-in sheet and photos of the site as described in the following: FIRST: The second site visit was held on Monday, July 28th and the sign-in sheet (Sign-in Roster_28 July 2025) is hereby release for all perspective bidders. ***************************** SECOND: Due to photos not allowed at the site, the following photos have been released to all perspective bidders: 1. Concrete Curb Photos 2. Epoxy Boiler Room 3. Exterior Doors 4. Exterior Stairs and Concrete Work 5. Tower Lights ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 04 Purpose of this modification is to offer an additional site visit and update the milestone dates as described in the following: FIRST: A second site visit is being offered on July 28, 2025, at 9:00AM Central Time. Requests to attend are due by July 25, 2025 12:00PM Central Time. A real ID is required by all attendees and will be strictly enforced. ********************************** SECOND: Due to FIRST above, additional questions will be accepted and will be due on July 30th, 2025 at 12:00PM Central Time. Late questions will not be accepted. ********************************** THIRD: Due to FIRST and SECOND above, proposals will be due on August 8th, 2025 at 12:00PM Central Time. Late proposals will not be accepted after this time. ********************************** FOURTH: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 03 FIRST: The official question and answers (Q&A) are hereby updated and released to include three additional questions. **************************** SECOND: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 02 Purpose of amendment 02 is release the official Question and Answer (Q&A) and additional attachment as described below: FIRST: The official Q&A is hereby released for this solicitation as attachment J-16. ******************************* SECOND: Due to FIRST above, attachment J-17, Excerpt_ZMP_RCLR_ID01922_Tower Assessment Report_2024_DNC is hereby included in this opportunity. ******************************* THIRD: All other terms and conditions remainunchanged and in full effect. ***************************************************************************************** Amendment 01: Purpose of Amendment 01 is to remove 6 of the 10 projects from this solicitation moving forward: FIRST: The following projects are no longer apart of this solicitation and zero proposals will be received for them: 1. 00001 Replace two (2) Chilled Water Flow Control Valves and one (1) Condenser Water Flow Control Valve. 2. 00004 Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 3. 00005 Remove and replace HU-380 Humidifier 4. 00006 Remove and replace AHU-12 and AHU-13Humidifiers 5. 00008 Remove and replace power panels 6. 00009 Remove and replace two (2) boiler vent stacks 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue ***************************** SECOND: Due to FIRST above, the following attachments are no longer applicable: 1. J-1a, ZMP Chilled Water Valve Replacement Specifications 2. J-1b, ZMP Chilled Water Valve Replacement Drawings 3. J-1c, ZMP Chilled Water Valve Replacement EOSH Impacts 4. J-4a, ZMP PSB Gas Unit Heater Replacement Specifications 5. J-4b, ZMP PSB Gas Unit Heater Replacement Drawings 6. J-4c, ZMP PSB Gas Unit Heater Replacement EOSH Impacts 7. J-5, ZMP Humidifier HU-380 remove and replace 8. J-6a, ZMP AHU-12 and AHU-13 Humidifiers remove and replace specifications 9. J-6b, ZMP AHU-12 and AHU-13 Humidifiers remove and replace drawings 10. J-6c, ZMP AHU 12 13 EOSH Impacts 11. J-8a, ZMP Replace Electrical Panels specifications 12. J-8b, ZMP Replace Electrical Panels drawings 13. J-8c, ZMP Various Power Panel Replace EOSH Impacts 14. J-9a, ZMP Replace 2 Boiler Vent Stacks Scope of Work 15. J-9b, ZMP Replace 2 Boiler Vent Stacks specification 16. J-9c, ZMP Replace 2 Boiler Vent Stacks Drawing 1 17. J-9d, ZMP Replace 2 Boiler Vent Stacks Drawing 2 18. J-9e, ZMP Replace 2 Boiler Vent Stacks EOSH Impacts 19. J-11, FAA Std 019 Lightning and Surge Protection, etc. 20. J-12, FAA-C-1217H Chg 2 Electrical Work Premises Wiring ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 512 Division Street, Farmington, MN 55024 ATTENTION: This overall project will consist of multiple projects at the same facility. Contractors can bid on all, one, or some of the line items found within the solicitation. Award or multiple awards will be made based on Lowest Priced Technically Acceptable (LPTA). The Projects are defined by the Contract Documents and consist of the following: 1. Replace Two (2) Chilled Water Flow Control Valves and One (1) Condenser Water Flow Control Valve. 2. Remove and replace Epoxy Floor in the Boiler Room. 3. Remove and replace four (4) exterior doors in Power Service Building and Maintenance Garage. 4. Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 5. Remove and replace HU-380 Humidifier. 6. Remove and replace AHU-12 and AHU-13 Humidifiers. 7. Remove existing red-light and white strobe lights and replace with new dual LED lighting system. 8. Remove and replace power panels. 9. Remove and replace two (2) boiler vent stacks. 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue 10. Resurface Exterior Concrete Floor and Adjust Concrete Curb. Requests to attend site visit are due: Noon Central Time on July 08, 2025 Site Visit is being held on: July 09, 2025 @ 9AM Central Time Questions are due by: July 14, 2025 at Noon Central Time Proposals are due by: July 31, 2025 at Noon Central time

Amendment 06 Purpose of amendment 06 is to hereby release the Question and Answer (Q&A) as described in the following: FIRST: The Final Q&A entitled, "J-16_QA for ZMP Multiple Project_Final_7.31.2025" is hereby released. ****************************** SECOND: The proposal due date remains unchanged with a date of August 08, 2025, at Noon Central time. ****************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 05 Purpose of amendment 05 is to release the second site visit sign-in sheet and photos of the site as described in the following: FIRST: The second site visit was held on Monday, July 28th and the sign-in sheet (Sign-in Roster_28 July 2025) is hereby release for all perspective bidders. ***************************** SECOND: Due to photos not allowed at the site, the following photos have been released to all perspective bidders: 1. Concrete Curb Photos 2. Epoxy Boiler Room 3. Exterior Doors 4. Exterior Stairs and Concrete Work 5. Tower Lights ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 04 Purpose of this modification is to offer an additional site visit and update the milestone dates as described in the following: FIRST: A second site visit is being offered on July 28, 2025, at 9:00AM Central Time. Requests to attend are due by July 25, 2025 12:00PM Central Time. A real ID is required by all attendees and will be strictly enforced. ********************************** SECOND: Due to FIRST above, additional questions will be accepted and will be due on July 30th, 2025 at 12:00PM Central Time. Late questions will not be accepted. ********************************** THIRD: Due to FIRST and SECOND above, proposals will be due on August 8th, 2025 at 12:00PM Central Time. Late proposals will not be accepted after this time. ********************************** FOURTH: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 03 FIRST: The official question and answers (Q&A) are hereby updated and released to include three additional questions. **************************** SECOND: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Amendment 02 Purpose of amendment 02 is release the official Question and Answer (Q&A) and additional attachment as described below: FIRST: The official Q&A is hereby released for this solicitation as attachment J-16. ******************************* SECOND: Due to FIRST above, attachment J-17, Excerpt_ZMP_RCLR_ID01922_Tower Assessment Report_2024_DNC is hereby included in this opportunity. ******************************* THIRD: All other terms and conditions remainunchanged and in full effect. ***************************************************************************************** Amendment 01: Purpose of Amendment 01 is to remove 6 of the 10 projects from this solicitation moving forward: FIRST: The following projects are no longer apart of this solicitation and zero proposals will be received for them: 1. 00001 Replace two (2) Chilled Water Flow Control Valves and one (1) Condenser Water Flow Control Valve. 2. 00004 Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 3. 00005 Remove and replace HU-380 Humidifier 4. 00006 Remove and replace AHU-12 and AHU-13Humidifiers 5. 00008 Remove and replace power panels 6. 00009 Remove and replace two (2) boiler vent stacks 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue ***************************** SECOND: Due to FIRST above, the following attachments are no longer applicable: 1. J-1a, ZMP Chilled Water Valve Replacement Specifications 2. J-1b, ZMP Chilled Water Valve Replacement Drawings 3. J-1c, ZMP Chilled Water Valve Replacement EOSH Impacts 4. J-4a, ZMP PSB Gas Unit Heater Replacement Specifications 5. J-4b, ZMP PSB Gas Unit Heater Replacement Drawings 6. J-4c, ZMP PSB Gas Unit Heater Replacement EOSH Impacts 7. J-5, ZMP Humidifier HU-380 remove and replace 8. J-6a, ZMP AHU-12 and AHU-13 Humidifiers remove and replace specifications 9. J-6b, ZMP AHU-12 and AHU-13 Humidifiers remove and replace drawings 10. J-6c, ZMP AHU 12 13 EOSH Impacts 11. J-8a, ZMP Replace Electrical Panels specifications 12. J-8b, ZMP Replace Electrical Panels drawings 13. J-8c, ZMP Various Power Panel Replace EOSH Impacts 14. J-9a, ZMP Replace 2 Boiler Vent Stacks Scope of Work 15. J-9b, ZMP Replace 2 Boiler Vent Stacks specification 16. J-9c, ZMP Replace 2 Boiler Vent Stacks Drawing 1 17. J-9d, ZMP Replace 2 Boiler Vent Stacks Drawing 2 18. J-9e, ZMP Replace 2 Boiler Vent Stacks EOSH Impacts 19. J-11, FAA Std 019 Lightning and Surge Protection, etc. 20. J-12, FAA-C-1217H Chg 2 Electrical Work Premises Wiring ***************************** THIRD: All other terms and conditions remain unchanged and in full effect. ***************************************************************************************** Multiple projects located at Air Route Traffic Control Center in Minneapolis, MN 512 Division Street, Farmington, MN 55024 ATTENTION: This overall project will consist of multiple projects at the same facility. Contractors can bid on all, one, or some of the line items found within the solicitation. Award or multiple awards will be made based on Lowest Priced Technically Acceptable (LPTA). The Projects are defined by the Contract Documents and consist of the following: 1. Replace Two (2) Chilled Water Flow Control Valves and One (1) Condenser Water Flow Control Valve. 2. Remove and replace Epoxy Floor in the Boiler Room. 3. Remove and replace four (4) exterior doors in Power Service Building and Maintenance Garage. 4. Demolish existing gas heaters and replace with ten (10) new gas unit heaters. 5. Remove and replace HU-380 Humidifier. 6. Remove and replace AHU-12 and AHU-13 Humidifiers. 7. Remove existing red-light and white strobe lights and replace with new dual LED lighting system. 8. Remove and replace power panels. 9. Remove and replace two (2) boiler vent stacks. 9a. Bid Option 1: Removal and Reinstallation of Dish Washing Room Wall 9b. Bid Option 2: Dishwasher Room Ceiling Repair 9c. Bid Option 3: Replacement of Hot Water Heater Flue 10. Resurface Exterior Concrete Floor and Adjust Concrete Curb. Requests to attend site visit are due: Noon Central Time on July 08, 2025 Site Visit is being held on: July 09, 2025 @ 9AM Central Time Questions are due by: July 14, 2025 at Noon Central Time Proposals are due by: July 31, 2025 at Noon Central time