McClellan CERCLA Remedial Investigation and Response Actions - PIEE

09 Aug 2023 - Attached to this amendment are draft government responses, draft Synopsis and SOW. The SF330 submission date is extended to 25 August 2023. Final documents will be posted soon (Minimal if any charges are expected).The contractor shall provide A-E Services for the Air Force Civil Engineer Center (AFCEC) environmental projects and are expected to complete activities such as:? Developing and updating of plans documenting the methods and procedures that will be used to conduct the remedial investigation including defining the nature and extent of PFAS contamination ? Collecting and analyzing geologic, geophysical, hydrogeological, ecological, chemical, physical and hydrologic data? Collecting and analyzing environmental samples such as groundwater, soil, surface water, sediment, tissue, and drinking water ? Managing and disposing of investigation derived waste and other waste generated during the execution of the activities ? Refining the Conceptual Site Model using validated environmental data to identify migration and sample pathways by which populations may be exposed to contaminants? Performing a source strength assessment of PFAS impacted vadose zone sources? Conducting a CERCLA Baseline Risk Assessment to evaluate the risk to human health and the environment? Conducting removal actions to respond to imminent threats to human health and the environment such as hot-spot soil removals, providing alternate water including bottled water and treatment systems? Evaluating preliminary remedial alternative options to support RI scoping and response actions ? Designing and implementing interim remedial actions to manage/prevent migration of known contamination or stabilize the site ? Preparing CERCLA documents such as remedial investigation, time critical removal actions, non-time critical removal actions (Engineering Evaluation/Cost Analysis [EE/CA], Action Memorandum, and Workplan), and other decision documents such as an Explanation of Significant Differences, interim proposed plans and interim Record of Decision? Supporting meetings such as public, stakeholder, and regulatory interface ? Updating the CERCLA administrative record and information repository with applicable work products and reports? Preparing and presenting expert testimony

The contractor shall provide A-E Services for the Air Force Civil Engineer Center (AFCEC) environmental projects and are expected to complete activities such as:? Developing and updating of plans documenting the methods and procedures that will be used to conduct the remedial investigation including defining the nature and extent of PFAS contamination ? Collecting and analyzing geologic, geophysical, hydrogeological, ecological, chemical, physical and hydrologic data? Collecting and analyzing environmental samples such as groundwater, soil, surface water, sediment, tissue, and drinking water ? Managing and disposing of investigation derived waste and other waste generated during the execution of the activities ? Refining the Conceptual Site Model using validated environmental data to identify migration and sample pathways by which populations may be exposed to contaminants? Performing a source strength assessment of PFAS impacted vadose zone sources? Conducting a CERCLA Baseline Risk Assessment to evaluate the risk to human health and the environment? Conducting removal actions to respond to imminent threats to human health and the environment such as hot-spot soil removals, providing alternate water including bottled water and treatment systems? Evaluating preliminary remedial alternative options to support RI scoping and response actions ? Designing and implementing interim remedial actions to manage/prevent migration of known contamination or stabilize the site ? Preparing CERCLA documents such as remedial investigation, time critical removal actions, non-time critical removal actions (Engineering Evaluation/Cost Analysis [EE/CA], Action Memorandum, and Workplan), and other decision documents such as an Explanation of Significant Differences, interim proposed plans and interim Record of Decision? Supporting meetings such as public, stakeholder, and regulatory interface ? Updating the CERCLA administrative record and information repository with applicable work products and reports? Preparing and presenting expert testimony