LCP Chemicals Georgia
Site Summary ProfileEPA ID: GAD099303182
Location: Brunswick, Glynn County, GA
Lat/Long: 31.189440, -081.508330
Congressional District: 01
NPL Status: Proposed: 10/02/95; Final: 06/17/96
Affected Media: Ground water, sediment and soil
Cleanup Status: Site cleanup activities are underway
Human Exposure Under Control: Yes
Groundwater Migration Under Control: No
Sitewide Ready for Anticipated Use: No
Site Reuse/Redevelopment: The majority of the Site is currently no in use - commercial and idustrial land uses could be located at the Site in the future
Site Manager: Galo Jackson (email@example.com)
Current Site Status
The LCP Chemicals Georgia site includes an area where various industrial facilities operated from the early 1920s until 1994. EPA placed the site on the National Priorities List (NPL) in 1996 because of contaminated ground water, soil and sediment resulting from facility operations. EPA, the Georgia Environmental Protection Division (Georgia EPD) and the Site’s potentially responsible parties (PRPs) are investigating site conditions and are taking steps to clean up the Site in order to protect people and the environment from contamination. Site contamination does not currently threaten people living and working near the Site. By investigating Site conditions, undertaking removal actions and limiting access to contaminated areas, EPA, Georgia EPD and the site’s PRPs continue to protect people and the environment from Site contamination.
The 550-acre site is located north of Brunswick, Georgia, and consists primarily of tidal marsh. The remaining portion of the Site includes former petroleum process buildings, former mercury cell buildings and an administration office. The Site is located near a paper company, a county facility and an estuary. The Site is bordered by the Turtle River marshes to the west and south, and urban populations of Brunswick to the north and east. Several residences are located south of the Site. The Site also includes a 10.5-acre highly alkaline caustic brine pool. Caustic brine is a salty solution that can cause burning or corrosion.
Map 1 shows the boundary of the LCP Chemical property included as part of the site.
Map 2 shows the tidal marsh area included as part of the site.
From the 1920s to 1994, facilities at the site included an oil refinery, a paint manufacturing company, a power plant and a chlor-alkali plant. The companies operating these facilities included Atlantic Refining Company, Georgia Power Company, Dixie Paints and Varnish Company (now the O'Brien Company), Allied Chemical Inc. (now Honeywell International, Inc.), and Hanlin Group subsidiary LCP Chemicals-Georgia, Inc.
Site investigations identified contamination in ground water, soil and sediments that could potentially harm people in the area. The contamination resulted from past manufacturing operations. Contaminants of concern identified include polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons and heavy metals, including mercury, lead, chromium, beryllium, arsenic and vanadium.
Site PRPs fenced areas with soil and sediment contamination to prevent unauthorized access. Although residences are located south of the Site, ground water contamination does not threaten nearby residents because they live uphill from the Site.
PCBs and mercury detected in the estuary near the Site are currently inaccessible. Fishing advisories and signs are in place to discourage people from eating large amounts of certain types of fish from the estuary. EPA also plans to include land use restrictions in the final cleanup plans issued for the Site.
The Agency for Toxic Substances and Disease Registry has prepared several reports and other materials on site-related public health issues.
Investigation and Cleanup Responsibility / Oversight
PRPs lead Site investigation and cleanup activities, with oversight provided by EPA and Georgia EPD.
Site Cleanup Plan
Site investigations and cleanup activities have focused on three areas, which EPA refers to as operable units, or OUs. There areas include OU-1: marsh area; OU-2: ground water contamination; and OU-3: upland soil. In 1995, EPA initiated a remedial investigation/feasibility study (RI/FS). Site PRPs are currently working on an RI/FS for each OU; following the completion of the three RI/FSs, EPA will issue cleanup plans (Records of Decision, or RODs) for the Site.
Between 1994 and 1999, PRPs undertook multiple removal actions, or short-term cleanup actions, to address Site contamination considered the greatest potential threat to people and the environment. PRPs completed a removal action on the 70-acre upland portion of the site. The removal action included the excavation, or digging up, of contaminated soils and industrial process waste from 26 contaminated areas. The removal areas contained material contaminated with petroleum hydrocarbons (volatile organic compounds and semi-volatile organic compounds), mercury, alkaline sludges, PCBs and lead. The PRPs removed approximately 167,000 cubic yards of soil, sediment and waste.
Between 1998 and 1999, Site PRPs extended the removal action cleanup to include approximately 13 acres of marshland and parts of the tidal channels. PRPs also dismantled petroleum process buildings and mercury cell buildings on site.
OU-1: Marsh Area
- Human Health Risk Assessment (HHRA) for the Estuary: EPA and Georgia Environmental Protection (GaEPD) approved the HHRA in November 2011. The Baseline Ecological Risk Assessment (BERA) was approved in April 2011;
- The draft Remedial Investigation Report has been finalized;
- During the spring through spring of 2013, the responsible parties, EPA and GaEPD have met on several occasions for the purpose of preparing the draft feasibility study (FS) for the marsh. The 3rd draft of the FS, which was submitted in June 2014, is currently under review; and
- The Record of Decision (ROD) is anticipated prior to December 2014.
OU-2: Ground Water
- Construction of a caustic brine pool (CBP) extraction and on-site treatment system was completed in January 2010. The system performed far below design expectations and the approach was not felt to be salvageable;
- In 2012, Honeywell evaluated multiple technologies to address the caustic brine pool (CBP) contaminated groundwater, involving extracting the CBP for off-site treatment and disposal, as well as treating it on-site. The off-site options looked promising but had some regulatory challenges and the CBP groundwater extraction was estimated to take many years to accomplish;
- During 2012-2013, Honeywell and its consultants conducted an on-site “Proof of Concept for CO2 Sparging” pilot treatability study on a portion of the CBP to neutralize the pH and precipitate the soluble mercury as a mercury salt. The sparging was performed in-situ and was successful in dropping the pH to 6.5 to 7.0 and significantly reducing the soluble mercury concentrations within the zone of influence of the sparge wells.
- In May 2013, the EPA, in consultation with the State of Georgia, approved the full-scale implementation of CO2 Sparging for the entire CBP. Sixty-four (64) sparging wells were installed throughout the CBP and CO2 sparging was conducted from November 2013 through February 2014. Year-1 results exceeded zone of influence expectations in many of the sparging wells. Eighty (80) additional sparging wells have been installed within the CBP and Year-2 sparging has begun and will run from mid-October 2014 through February 2015;
- The CO2 sparging technology has resulted in an accelerated resolution of the high pH and high soluble mercury concentrations in the CBP groundwater. The CO2 sparging is planned for a three-year time frame (currently in year-2) to fully treat all areas of the CBP. As the CBP groundwater is returned to a neutral pH, evaluation of site-wide groundwater contamination can then proceed.
OU-3: Contaminated Upland Soil
- TheOU3 BERA was approved by EPA, in consultation with GA EPD, during July 2010;
- The revised OU3 HHRA was approved by EPA, in consultation with GAEPD, in February 2012; and
- The draft of the remedial investigation was approved in early 2013; and
- A draft of the FS Technical Memorandum was received in April 2013 and is currently under review.
EPA negotiated legal agreements with site PRPs to investigate and clean up the site. The PRPs funded site cleanup, monitoring and oversight activities. In 1998, EPA agreed to provide funding to assist with removal action efforts, and site PRPs agreed to reimburse EPA for all future costs.
EPA has worked with the community and its state partner to develop a long-term cleanup plan for the site, reflecting the Agency’s commitment to safe, healthy communities and environmental protection. Community engagement and public outreach are core components of EPA program activities.
EPA has conducted a range of community involvement activities to solicit community input and to make sure the public remains informed about site activities throughout the cleanup process. Outreach efforts have included public meetings and public notices regarding major cleanup activities.
The Glynn Environmental Coalition is an active community group engaged at the site. EPA’s site project manager provides quarterly site updates to the group and speaks at their monthly meetings.
It is anticipated that the Records of Decision for OU-1 and OU-3 will be finalized in 2014 and 2015, respectively.
Work of the removal action for the CBP continues.
EPA keeps additional site documents and information in a site information repository at the location below. EPA also posts site documents, when available, on EPA’s CERCLIS Site Profile page. For documents not available on the website, please contact the Region 4 Freedom of Information Office.
Three Rivers Regional Library System
(formerly Brunswick-Glynn County Library System)
208 Gloucester Street
Brunswick, Georgia 31520