Air Force Plant 6 Remediation Assistance Program
Assist U.S. Air Force with environmental remediation activities at Air Force Plant 6 in Marietta, Georgia.
Introduction

United States Air Force (USAF), Aeronautical System Center (ASC) is conducting environmental remediation activities at Air Force Plant 6 (AFP6) in Marietta, Georgia. These activities include addressing complex ground-water contamination, primarily the result of long–term manufacturing processes. Significant contamination of ground water by Dense Non-Aqueous Phase Liquids (DNAPL), that were employed as degreasing solvents, and metals above regulatory limits exist on and adjacent to USAF property. Remediation is extraordinarily difficult because of numerous historic point and non-point contamination sources, and most importantly by an extremely complex ground-water flow system, characterized by non-porous media flow in fractured and weathered metamorphic and igneous bedrock.
To support and enhance environmental remediation activities at AFP6, the U.S. Geological Survey (USGS) is conducting hydrogeologic investigations that characterize ground-water flow and contaminant movement in fractured crystalline rock. This includes providing technical guidance to ASC and assisting and advising ASC contractors, as well as conducting specific characterization and delineation efforts that directly support remediation.
Plans for FY-2008 (October 1, 2007-September 30, 2008)
Bedrock remediation monitoring and database activities. This information is being used to assess effectiveness of remediation strategies.
- Collect and analyze water samples for VOCs and degradation by-products on a semi-annual basis from a network of wells (includes analyses for natural attenuation parameters).
- Assess changes in contaminant discharge to Rottenwood Creek by deploying diffusion samplers and analyzing for TCE and degradation by-products.
- Operate 8-well continuous water-level monitoring network.
- Ensure that various well, geophysical, aquifer test, and water quality data collected during the project are properly archived into USGS databases.
Bedrock remediation support in the B4 area in the vicinity of offsite bedrock monitoring well MWOS2R, in which high levels of TCE (greater than 2,500 micrograms per liter) have been detected and are increasing. This information will be used to guide remediation strategy in fractured crystalline bedrock.
- Conduct tracer studies to assess ground-water flowpaths and rates of flow.
- Evaluate surficial and subsurface geology by mapping and evaluating existing borehole geophysical data.
Continue to provide ASC technical support, including evaluation of contractor performance, and representation to GaEPD.
Prepare and publish reports summarizing a variety of topics that support remedial activities, including water-quality and geophysical data tabulations, water-quality trends, hydrogeologic characterization in the B4 & offsite area, aquifer-test results, and packer-test results. This information is being used to guide remediation strategies and assess their effectiveness.
Presentations
- Tracer Results Jan. 2008, PPT file.
- Tracer Results May 2008, PPT file.
USGS Research Sites: Contamination in Fractured Rock Aquifers
- Mirror Lake Research Site, New Hampshire
- Naval Air Warfare Center (NAWC) Research Site, West Trenton, NJ
Georgia Water Resources Conference Proceedings
- Gonthier, G. J, 2007a, Estimates of barometric efficiency using a graphical method on nearly continuous data: in 2007 GWRC Proceedings, CD-ROM, also online at GWRC 2023 – Georgia Water Resources Institute
- Gonthier, G. J, and Mayer, G.C., 2003, Slug-test results from a well completed in fractured crystalline rock, U.S. Air Force Plant 6, Marietta, Georgia: in 2003 GWRC Proceedings, CD-ROM, also online at Gonthier-GWRC2003.pdf
- Waddell, J.P., and Mayer, G.C., 2003, Effects of Fenton's reagent and potassium permangante applications on indigenous subsurface microbiota-A literature review: in 2003 GWRC Proceedings, CD-ROM, also online at Waddell-GWRC2003.pdf
Quarterly Progress January 2008
PROJECT PROGRESS REPORT-For the Period Ending: January 11, 2008
PROGRESS DURING QUARTER
- Offsite remediation-Ongoing tracer study at B4 area. Tracer detected in several downgradient wells
- Database management
- QW data into their ITEMS/ERPIMS database-Need to evaluate "bad QW" data and link to specific site in header file. No Progress
- Geophysical database-Need to add flow meter, ATV, OTV data and to generate layouts. No Progress.
- Aquifer test data-Need to put approved slug test data into GWSI. No Progress.
- WL data-QA/QC and entry of data for 8 wells. Data is being prepared for download to ADAPs.
- Began development of project web page. This will serve as a repository for geophysical, qw, and water-level data, and for published reports.
- Letter report to ASC describing all databases and data availability-Pending completion of other tasks.
- Monitoring well construction
- All retrofits completed with the exception of RW203-On hold until tracer tests completed.
- B4 Remediation evaluation monitoring -Reevaluated network and frequency of sampling. Met with Amy Potter to discuss in December. See attached table.
- B4 Water level network - Processing and QA/QC of data is still lagging.
MEETINGS
- 12/17/07 JSC met with Amy Potter regarding scope of USGS water-quality monitoring activities. Network has been revised (see above).
PLANS FOR NEXT QUARTER
- Offsite remediation-Continue to monitor tracers near South Cobb Drive remediation area.
- Database management
- QW data into their ITEMS/ERPIMS database-Complete this quarter. Need to evaluate "bad QW" data and link to specific site in header file.
- Geophysical database-Add flow meter, ATV, OTV data; prepare for web layout
- Aquifer test data archive-Ensure consistent with Gonthier report, add slug tests to GWSI
- WL data-Complete QA/QC of all data for 8-site network.
- Project WEB page--Continue development. Incorporate geophysical log archive, water-level and qw data.
- B4 Remediation evaluation monitoring - Collect next series of samples in March
- B4 Water level network - Service recorder network in January.
- Reports:
- Continue progress on reports (see table)
- Other:
- Partnering meeting, February 7 (tentative)
- Need to schedule meeting with new Air Force coordinator, John Doepker (Feb 6?)


Quarterly Progress April 2008
PROJECT PROGRESS REPORT-For the Period Ending: April 28, 2008
PROGRESS DURING QUARTER
- Offsite remediation-Ongoing tracer study at B4 area. Tracer detected in several downgradient wells
- Database management
- QW data-Steve Lawrence has taken lead entering all USGS analyses into USGS QWDATA database. Has completed "routine" network samples, and will begin entry of packer samples next.
- Geophysical database-Lester Williams has developed WEB interface for access of project data. Need to resolve database security issues and have review completed.
- Aquifer test data-Working on entering approved slug test data into GWSI. Packer tests have been re-analyzed by Elliott Jones and submitted for review.
- WL data-QA/QC and entry of data for 8 wells. Data is being prepared for download to USGS ADAPs database. Jaime Painter has worked with Lester Williams to reformat well data for ADAPS entry. Data still needs to be corrected in ADAPS.
- Continued development of project web page. This will serve as a repository for geophysical, qw, and water-level data, and for published reports.
- Letter report to ASC describing all databases and data availability-Pending completion of other tasks.
- Monitoring well construction
- All retrofits completed with the exception of RW203-tentative plans are to complete RW203 before end of fiscal year.
- B4 Remediation evaluation monitoring
- B4 Water level network
MEETINGS
- January 5th - Met with new Air Force program manager (Robin Stankoff), John Doepker (USAF), and Rob Darner (USGS-USAF liaison) to discuss current and planned USGS program at AFP6
- January 7th - AFP-6 partnering meeting. Lester Williams provided briefing on tracer study results.
PLANS FOR NEXT QUARTER
- Offsite remediation-Continue to monitor tracers near South Cobb Drive remediation area approximately every 5 weeks.
- Database management
- QW data-Complete entry of data into QWDATA. Includes packer data and passive diffusion sample data from Rottenwood Creek
- Geophysical database-Add flow meter, ATV, OTV data; prepare for web layout
- Aquifer test data archive-Ensure consistent with Gonthier report, add slug tests to USGS GWSI database
- WL data-Complete QA/QC of all data for 8-site network.
- Project WEB page-Complete initial development and go public before Partnering meeting on May 20th.
- B4 Remediation evaluation monitoring -No activity until September.
- B4 Water level network-Continue servicing network. Keep up to date on records processing.
- Reports:
- Continue progress on reports (see table)
- Other:
- Partnering meeting, May 20th
REPORT STATUS

Design and Operation of a Borehole Straddle Packer for Ground-Water Sampling and Hydraulic Testing of Discrete Intervals at U.S. Air Force Plant 6, Marietta, Georgia Design and Operation of a Borehole Straddle Packer for Ground-Water Sampling and Hydraulic Testing of Discrete Intervals at U.S. Air Force Plant 6, Marietta, Georgia
A graphical method for estimation of barometric efficiency from continuous data: Concepts and application to a site in the Piedmont, Air Force Plant 6, Marietta, Georgia A graphical method for estimation of barometric efficiency from continuous data: Concepts and application to a site in the Piedmont, Air Force Plant 6, Marietta, Georgia
Assist U.S. Air Force with environmental remediation activities at Air Force Plant 6 in Marietta, Georgia.
Introduction

United States Air Force (USAF), Aeronautical System Center (ASC) is conducting environmental remediation activities at Air Force Plant 6 (AFP6) in Marietta, Georgia. These activities include addressing complex ground-water contamination, primarily the result of long–term manufacturing processes. Significant contamination of ground water by Dense Non-Aqueous Phase Liquids (DNAPL), that were employed as degreasing solvents, and metals above regulatory limits exist on and adjacent to USAF property. Remediation is extraordinarily difficult because of numerous historic point and non-point contamination sources, and most importantly by an extremely complex ground-water flow system, characterized by non-porous media flow in fractured and weathered metamorphic and igneous bedrock.
To support and enhance environmental remediation activities at AFP6, the U.S. Geological Survey (USGS) is conducting hydrogeologic investigations that characterize ground-water flow and contaminant movement in fractured crystalline rock. This includes providing technical guidance to ASC and assisting and advising ASC contractors, as well as conducting specific characterization and delineation efforts that directly support remediation.
Plans for FY-2008 (October 1, 2007-September 30, 2008)
Bedrock remediation monitoring and database activities. This information is being used to assess effectiveness of remediation strategies.
- Collect and analyze water samples for VOCs and degradation by-products on a semi-annual basis from a network of wells (includes analyses for natural attenuation parameters).
- Assess changes in contaminant discharge to Rottenwood Creek by deploying diffusion samplers and analyzing for TCE and degradation by-products.
- Operate 8-well continuous water-level monitoring network.
- Ensure that various well, geophysical, aquifer test, and water quality data collected during the project are properly archived into USGS databases.
Bedrock remediation support in the B4 area in the vicinity of offsite bedrock monitoring well MWOS2R, in which high levels of TCE (greater than 2,500 micrograms per liter) have been detected and are increasing. This information will be used to guide remediation strategy in fractured crystalline bedrock.
- Conduct tracer studies to assess ground-water flowpaths and rates of flow.
- Evaluate surficial and subsurface geology by mapping and evaluating existing borehole geophysical data.
Continue to provide ASC technical support, including evaluation of contractor performance, and representation to GaEPD.
Prepare and publish reports summarizing a variety of topics that support remedial activities, including water-quality and geophysical data tabulations, water-quality trends, hydrogeologic characterization in the B4 & offsite area, aquifer-test results, and packer-test results. This information is being used to guide remediation strategies and assess their effectiveness.
Presentations
- Tracer Results Jan. 2008, PPT file.
- Tracer Results May 2008, PPT file.
USGS Research Sites: Contamination in Fractured Rock Aquifers
- Mirror Lake Research Site, New Hampshire
- Naval Air Warfare Center (NAWC) Research Site, West Trenton, NJ
Georgia Water Resources Conference Proceedings
- Gonthier, G. J, 2007a, Estimates of barometric efficiency using a graphical method on nearly continuous data: in 2007 GWRC Proceedings, CD-ROM, also online at GWRC 2023 – Georgia Water Resources Institute
- Gonthier, G. J, and Mayer, G.C., 2003, Slug-test results from a well completed in fractured crystalline rock, U.S. Air Force Plant 6, Marietta, Georgia: in 2003 GWRC Proceedings, CD-ROM, also online at Gonthier-GWRC2003.pdf
- Waddell, J.P., and Mayer, G.C., 2003, Effects of Fenton's reagent and potassium permangante applications on indigenous subsurface microbiota-A literature review: in 2003 GWRC Proceedings, CD-ROM, also online at Waddell-GWRC2003.pdf
Quarterly Progress January 2008
PROJECT PROGRESS REPORT-For the Period Ending: January 11, 2008
PROGRESS DURING QUARTER
- Offsite remediation-Ongoing tracer study at B4 area. Tracer detected in several downgradient wells
- Database management
- QW data into their ITEMS/ERPIMS database-Need to evaluate "bad QW" data and link to specific site in header file. No Progress
- Geophysical database-Need to add flow meter, ATV, OTV data and to generate layouts. No Progress.
- Aquifer test data-Need to put approved slug test data into GWSI. No Progress.
- WL data-QA/QC and entry of data for 8 wells. Data is being prepared for download to ADAPs.
- Began development of project web page. This will serve as a repository for geophysical, qw, and water-level data, and for published reports.
- Letter report to ASC describing all databases and data availability-Pending completion of other tasks.
- Monitoring well construction
- All retrofits completed with the exception of RW203-On hold until tracer tests completed.
- B4 Remediation evaluation monitoring -Reevaluated network and frequency of sampling. Met with Amy Potter to discuss in December. See attached table.
- B4 Water level network - Processing and QA/QC of data is still lagging.
MEETINGS
- 12/17/07 JSC met with Amy Potter regarding scope of USGS water-quality monitoring activities. Network has been revised (see above).
PLANS FOR NEXT QUARTER
- Offsite remediation-Continue to monitor tracers near South Cobb Drive remediation area.
- Database management
- QW data into their ITEMS/ERPIMS database-Complete this quarter. Need to evaluate "bad QW" data and link to specific site in header file.
- Geophysical database-Add flow meter, ATV, OTV data; prepare for web layout
- Aquifer test data archive-Ensure consistent with Gonthier report, add slug tests to GWSI
- WL data-Complete QA/QC of all data for 8-site network.
- Project WEB page--Continue development. Incorporate geophysical log archive, water-level and qw data.
- B4 Remediation evaluation monitoring - Collect next series of samples in March
- B4 Water level network - Service recorder network in January.
- Reports:
- Continue progress on reports (see table)
- Other:
- Partnering meeting, February 7 (tentative)
- Need to schedule meeting with new Air Force coordinator, John Doepker (Feb 6?)


Quarterly Progress April 2008
PROJECT PROGRESS REPORT-For the Period Ending: April 28, 2008
PROGRESS DURING QUARTER
- Offsite remediation-Ongoing tracer study at B4 area. Tracer detected in several downgradient wells
- Database management
- QW data-Steve Lawrence has taken lead entering all USGS analyses into USGS QWDATA database. Has completed "routine" network samples, and will begin entry of packer samples next.
- Geophysical database-Lester Williams has developed WEB interface for access of project data. Need to resolve database security issues and have review completed.
- Aquifer test data-Working on entering approved slug test data into GWSI. Packer tests have been re-analyzed by Elliott Jones and submitted for review.
- WL data-QA/QC and entry of data for 8 wells. Data is being prepared for download to USGS ADAPs database. Jaime Painter has worked with Lester Williams to reformat well data for ADAPS entry. Data still needs to be corrected in ADAPS.
- Continued development of project web page. This will serve as a repository for geophysical, qw, and water-level data, and for published reports.
- Letter report to ASC describing all databases and data availability-Pending completion of other tasks.
- Monitoring well construction
- All retrofits completed with the exception of RW203-tentative plans are to complete RW203 before end of fiscal year.
- B4 Remediation evaluation monitoring
- B4 Water level network
MEETINGS
- January 5th - Met with new Air Force program manager (Robin Stankoff), John Doepker (USAF), and Rob Darner (USGS-USAF liaison) to discuss current and planned USGS program at AFP6
- January 7th - AFP-6 partnering meeting. Lester Williams provided briefing on tracer study results.
PLANS FOR NEXT QUARTER
- Offsite remediation-Continue to monitor tracers near South Cobb Drive remediation area approximately every 5 weeks.
- Database management
- QW data-Complete entry of data into QWDATA. Includes packer data and passive diffusion sample data from Rottenwood Creek
- Geophysical database-Add flow meter, ATV, OTV data; prepare for web layout
- Aquifer test data archive-Ensure consistent with Gonthier report, add slug tests to USGS GWSI database
- WL data-Complete QA/QC of all data for 8-site network.
- Project WEB page-Complete initial development and go public before Partnering meeting on May 20th.
- B4 Remediation evaluation monitoring -No activity until September.
- B4 Water level network-Continue servicing network. Keep up to date on records processing.
- Reports:
- Continue progress on reports (see table)
- Other:
- Partnering meeting, May 20th
REPORT STATUS
