# Notice of Intent to Sole Source Maintenance Agreement Meso Scale Diagnostic MESO QuickPlex SQ 120 Canonical: https://abierto.us/opportunities/noisolesourcemaintenanceagreementmesoscalediagnosticmesoquickplexsq120 - Solicitation number: NOI_Sole_Source_Maintenance_Agreement_Meso_Scale_Diagnostic_MESO_QuickPlex_SQ_120 - Notice type: Special notice - Status: Closed. Deadline was October 2, 2026 at 3:00 PM EDT - Department: Environmental Protection Agency - Contracting office: Water, Tribal & Science Division (68HERW) - First posted: September 28, 2026 - Last posted: September 28, 2026 - SAM.gov: https://sam.gov/workspace/contract/opp/32d470c2c77e4ecca48a0ba8ec48ce37/view ## Description Notice of Intent to Sole Source Title of Procurement: Maintenance Agreement Meso Scale Diagnostic MESO QuickPlex SQ 120 Type of Notice: Special Notice – Notice of Intent to Sole Source Procurement Office: US Environmental Protection Agency’s (EPA) Office of Finance and Administration (OFA), Office of the Chief Procurement Officer (OCPO), Water, Tribal & Science Division (WTSD) Agency Point of Contact: Contracting Officer: Kareen Mansfield, Mansfield.Kareen@epa.gov Contract Specialist: Lemile Chandler, Chandler.Lemile@epa.gov Set Asides: None NAICS: 811219 - Other Electronic and Precision Equipment Repair and Maintenance Responses Due: October 2, 2026 The Environmental Protection Agency’s (EPA) Office of Chemical Safety and Pollution Prevention (OCSPP) has a requirement to purchase a Meso Scale Discovery Silver MesoAdvantage Plan Maintenance Agreement for the MESO QuickPlex SQ 120. The MESO QuickPlex SQ120 is highly specialized equipment that OCSPP scientists use for chemical screening and evaluating associated effects on human health and the environment. This maintenance agreement ensures that the instrument is operating properly and is serviced with Original Equipment Manufacturer (OEM) parts. The Agency intends to negotiate a sole-source Purchase Order (PO) with Meso Scale Discovery in accordance with Revolutionary FAR Overhaul (RFO) 12.102(a), with a twelve-month base period and four twelve-month option periods. Evaluation and award will be in accordance with RFO 12.2. Due to the proprietary nature of the equipment and its maintenance, this procurement is planned to be awarded without full and open competition. It is imperative that the manufacturer, Meso Scale Discovery, maintain the equipment using company-certified technicians. Meso Scale Discovery does not have authorized resellers, and there are no known third-party vendors able to service the equipment without voiding warranty agreements. Meso Scale Discovery is the only company with the requisite technology and skillset to repair and maintain the equipment without risking additional repair costs to the Agency. This notice of intent is not a request for quote therefore, no solicitation will result from this announcement. Notwithstanding, any firm that believes it is capable of meeting EPA's requirement as stated herein may submit a capability statement by the response due date indicated above. Timely responses will be considered. Responses to this posting must be in writing and provide clear and convincing evidence that competition would be advantageous to the Government. A determination not to compete the procurement based upon the responses to this notice is solely within the discretion of the Contracting Officer. All questions should be directed to Kareen Mansfield, Mansfield.Kareen@epa.gov, and Lemile Chandler, Chandler.Lemile@epa.gov – telephone calls will not be accepted. ## Attachments - [Special Notice (MESO) Notice of Intent to Sole Source.pdf](https://sam.gov/api/prod/opps/v3/opportunities/resources/files/0b6054767db54ba3a33eef386ab1d45f/download) ## Publications - September 28, 2026: Special notice, due October 2, 2026 at 3:00 PM EDT. Notice 32d470c2c77e4ecca48a0ba8ec48ce37. https://sam.gov/workspace/contract/opp/32d470c2c77e4ecca48a0ba8ec48ce37/view ## Points of contact - Lemile Chandler, Chandler.Lemile@epa.gov, 9195413693 - Mansfield, Kareen, Mansfield.Kareen@epa.gov, 9195414817 --- Source: SAM.gov Contract Opportunities bulk extract. Confirm deadlines on SAM.gov before responding. Cite https://abierto.us/opportunities/noisolesourcemaintenanceagreementmesoscalediagnosticmesoquickplexsq120.