East facing photo of drone flying over Terry Creek site.
OU1 Construction Update
Progress being made on excavating the new channel and laying the concrete liner.
OU1 Construction Update
Temporary sheet pile wall installed in Dupree Creek.
Terry Creek Construction Update
Geotextile liner and articulated concrete block are laid to create the surface of the new conveyance channel.
OU1 Construction Update
This week, the first segment of the new channel was lined with geotextile fabric and stone. This provides the foundation for the articulated concrete block.
Terry Creek OU1 Construction Update
Excavation of the re-routed channel for the OU1 remedy began last week. This channel will replace the “Outfall Ditch”.
Hercules to Hit Remediation Milestones in 2023
Hercules is starting the new year with a push to complete its environmental work at the former Hercules plant site, now Pinova, in Brunswick. The Georgia Environmental Protection Division (EPD) approved Hercules’ Corrective Action Plan and renewed the permit necessary for the work to commence. This action follows many years of investigation and remediation performed under earlier phases of the EPD-led remediation work.
Several public meetings and public comment periods were held over the years, most recently in October 2022.
During the past two years, Hercules stabilized 7,000 cubic yards of contaminated soil at the facility, installed 34 groundwater treatment wells, surveyed 35 site buildings to evaluate vapor intrusion, installed three vapor mitigation systems, and retrofitted five additional buildings to eliminate any potential vapor intrusion risk. Soil and groundwater work that builds on this progress is planned for 2023 including removal of 1,500 cubic yards of contaminated soil at the facility and additional groundwater treatment.
In addition to Pinova’s continued operation, an important goal for Hercules is to return eligible portions of the site to the community for redevelopment and reuse.
Also in January, remediation work along Terry Creek will kick off. Motorists along Highway 17 and the causeway may notice staging of construction equipment and crews mobilizing to build a U.S. Environmental Protection Agency interim remedy for the Terry Creek outfall ditch. Construction of the remedy, which will involve capping and eliminating the potential exposure to ditch sediments, should be finished in 2023. Hercules expects that completion of the remedy will help make the property attractive for redevelopment.
Terry Creek OU1 Construction Update
Workers at the Terry Creek site build and install roads and erosion control measures to prepare for implementation of the OU1 remedial action.
Aerobic Biobarrier Well installation
A series of wells was installed to implement the “aerobic biobarrier” to treat groundwater near the Brunswick facility. The interim corrective measure plan can be found here.
Terry Creek OU1 Remedial Action Begins
Crews began initial site work for constructing the Terry Creek Operable Unit 1 (OU1) remedial action. The remedial action work plan can be found here.
EPA hosts public availability session
Old City Hall
USEPA and representatives for several sites in Brunswick gathered in Old City Hall on October 27, 2022 for a public availability session.
The EPA fact sheets for 009 Landfill and Terry Creek can be viewed using these links:
Enhanced monitored natural attenuation at 009 Landfill
Hercules has met all established remedial action objectives at the 009 Landfill as of 1999. A portion of the site is currently being reused by a car dealership to park cars.
In 2022, Hercules voluntarily performed high resolution site characterization and installed additional groundwater monitoring wells. In an effort to enhance the future protectiveness of the established monitored natural attenuation remedy for groundwater impacts at the site, Hercules worked with EPA and EPD to inject aquifer amendments along the eastern, down-gradient boundary of the landfill. The effectiveness of the aquifer amendments at accelerating natural attenuation of impacted groundwater will be measured through quarterly groundwater sampling events through the end of 2023. The library contains the work plan for the pilot test and the expanded pilot test.