Remediation & Restoration

Regulatory


EPA organized the remediation work into three operable units (OUs):



Milestones


Cleanup and restoration accomplishments at the site include:



Marsh


The marsh has significantly improved over the last 20 years, as a result of remediation work done by Honeywell and its partners.
Examining Fish from River and Creeks

Honeywell is voluntarily conducting its third study of fish that live in the waters around the LCP site for the Georgia Dept. of Natural Resources (DNR). Samples of 11 species of fish from Turtle River, Purvis Creek and Gibson Creek are being collected and analyzed.

Honeywell scientists collect fish according to DNR protocols, and send them to a certified laboratory for analysis. Fish quality has steadily improved since the first fish around the LCP site were studied in 1991 and 1992.

The data help DNR compile its Guidelines for Eating Fish from Georgia Waters.

Honeywell's last fish sampling was completed in 2011. Study results have shown steady improvement over the years in the quality of most of the fish tissue collected around the LCP site.

Net Fishing Turtle River Alex Testoff, an environmental engineer working for Honeywell, nets fish at daybreak on the Turtle River.

After an extensive environmental investigation of the tidal marsh adjacent to the former LCP site, the U.S. Environmental Protection Agency (EPA) issued its approval of a cleanup plan in September 2015. The approved remedy, which will address 24 acres of marshland, will reduce risks to human health, mammals, fish and the benthic community.

A consent decree between Honeywell, Georgia Power, EPA, and the U.S. Department of Justice (DOJ) was finalized in July 2017. This final approval was delayed by nearly a year to allow the EPA and DOJ to respond to a challenge filed by the Glynn Environmental Coalition.

Honeywell is now drafting a design plan that will detail how the cleanup will be done. Once the construction work begins, it will take approximately two years to complete.

Investigation, Public Input, and Remediation Cleanup work performed shortly after LCP Chemical went bankrupt in 1991 accomplished the excavation, disposal and restoration of approximately 13 acres of contaminated marsh flats and 2,650 feet of tidal channels.

Before deciding on the current cleanup plan, the EPA sought input from the public during two public sessions: a public meeting on December 4, 2014, and a public availability session on February 26, 2015. At these meetings, the EPA explained the scientific and technical basis for the proposed remedy.

The remedy will include:

The cleanup plan reflects years of scientific investigations and engineering analyses.

Honeywell is committed to remediating and restoring the marsh and returning the LCP site to productive use that will benefit the Brunswick economy.



Groundwater


A system of sparging wells treated the groundwater successfully.

More than 150 groundwater monitoring wells check the movement and conditions of groundwater beneath the site. Data is collected and analyzed from an upland area that housed a variety of manufacturing facilities over 75 years.

An important milestone was reached in 2016 with the completion of carbon dioxide (CO2) treatment of an area within the footprint of an old manufacturing building impacted by caustic brine. Honeywell utilized an innovative treatment technology, injecting or "sparging" CO2 into the sub-surface to reduce the levels of pH (alkaline) and mercury.

The CO2 treatment occurred in three phases over several years, and deployed 209 sparging wells. The pH reduction and mercury stabilization are permanent and not changed by natural conditions such as storms or flooding.

Testing over time has demonstrated that local drinking water supplies are not affected by the site groundwater.



Upland soils


The PRPs have submitted a technical memorandum to EPA for the upland soils and expect to complete the feasibility study once the technical memorandum has been reviewed and approved by EPA.