Wastewater Treatment Plant Operation and Maintenance at Joint Base Charleston

The purpose of this amendment is to: (1) Extend the solicitation close date in Section (vii) to Friday, March, 27, 2026 at 12:00PM EDT. All other terms and conditions remain unchanged. _________________________________________________________ Amendment 3 The purpose of this amendment is to: (1) Incorporate Atch-01 WWTP O&M Services PWS dated

12 Mar 2026 to reflect changes made to reduce the number of backflow preventers in use from three (3) to one (1). (2) Incorporate Atch-01 PWS Atttachemnt 8.9 Short Stay WWTP PMI Spreadhseet - Rev 1 to reflect changes made to reduce the number of backflow preventers in use from three (3) to one (1) and add the Effluent Flow Meter as an annual calibration requirement. (3) Incorporate Atch-05 WWTP List of Repairs spreadhseet. (4) Incorporate Atch-06

Questions and Answers document. All other terms and conditions remain unchanged. ________________________________________________________________________ Amendment 2 The purpose of this amendment is to: (1) Incorporate an updated Attachment 4 RFQ

Pricing Workbook, dated

05 March 2026 to remove security restrictions. (2) Incorporate Atch-01 PWS Attachment 8.8.4. Digital Analyzer US - Field Service Report. All other terms and conditions remain unchanged. _________________________________________________________________________ Amendment 1 The purpose of this amendment is to clarify the Government's requirement. (1) Require interested offerors who plan to attend the site vist scheduled for Wednesday,

11 Mar 2026 at 1000 AM EST to contact Madison Nerenberg, Contract Specialist, at (843) 963-5158, email address [email protected] or Taylor McDaniel,