Chris Muriset

The meeting covered administrative updates, including a review of action items from the previous meeting and updates to the Master Meeting and Document Schedule. Current projects were discussed, such as the Treatment Plant Operation and Maintenance Update, which included performance data for the South Base Boundary Groundwater Treatment Plant, Central Groundwater Treatment Plant, LF007C Groundwater Treatment Plant, and ST018 Groundwater Treatment Plant. Presentations were given on the SBBGWTP SCADA Upgrade and a program update covering completed, in-progress, and planned documents and activities. The team was informed about the upcoming Optimized Remediation Contract Request for Proposals. Updates on Land Use Control Sites and the PFOS/PFOA Program status were provided. The SRS PFOS/PFOA contract was discussed, including presentations on the PFAS Remedial Investigation and Environmental Sequence Stratigraphy.

The meeting included discussions on administrative updates, master meeting and document schedule review, and updates on land use control sites and PFAS. Concerns were raised regarding potential human health exposures to PFAS off-Base, particularly through effluent from groundwater treatment systems to Union Creek and potential groundwater migration. The need for a more robust conceptual site model to understand PFAS migration off-Base was emphasized. Updates were provided on groundwater treatment plants, including issues with system shutdowns and exceedances of discharge limits. The Optimized Remediation Contract and Offline Recirculation Systems were also discussed, along with an update on the Phase I Remedial Investigation of AFFF sites.

The meeting covered updates on treatment plant operations and maintenance, including the South Base Boundary Groundwater Treatment Plant, the Central Groundwater Treatment Plant, the LF007C Groundwater Treatment Plant, and the ST018 Groundwater Treatment Plant. Discussions included optimization activities, system performance, and VOC removal. A Triad discussion on the Site TA500 Data Gap Investigation was presented, focusing on fluoride fate and transport, investigation history, and aquifer conditions. There was also a review of field work conducted during the 2017 field season and a program update on completed, in-progress, and upcoming activities.

The meeting covered administrative items such as the approval of previous meeting minutes and a review of action items. Discussions included updates on perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), the status of the SBBGWTP, and investigations into TPHD/MO detections at LF007CGWTP. The Travis AFB Master Meeting and Document Schedule was reviewed, with updates on various documents and their schedules. Current projects were discussed, including treatment plant operation and maintenance updates for South Base Boundary Groundwater Treatment Plant, Central Groundwater Treatment Plant, LF007C Groundwater Treatment Plant, and ST018 Groundwater (MTBE) Treatment Plant. A program update was presented, covering completed, in-progress, and planned documents and fieldwork. Technology demonstration projects were also reviewed, including SS014, Multisite Bioaugmentation, SD034, FT005, FT004, and SD031.

The meeting covered updates on various treatment plants, including the South Base Boundary Groundwater Treatment Plant (SBBGWTP), the Central Groundwater Treatment Plant (CGWTP), the LF007C Groundwater Treatment Plant, and the ST018 Groundwater (MTBE) Treatment Plant. Discussions included operational data, maintenance activities, and analytical results. The status of Land Use Control (LUC) sites and the PFOS/PFOA program were reviewed. An update was provided on the Phase I Remedial Investigation (RI) of AFFF sites, including the initial groundwater sampling event. There was also discussion regarding the transition of Mr. Duke to a new position and the impact on the program.