OSWER/OSRTI Washington, DC 20460



## N ATIONAL 

## P RIORITIES 

## L IST 

## (NPL)

***Final Site*** September 2011


### ARMSTRONG WORLD INDUSTRIES Macon, Georgia

Bibb County

 **Site Location :**  The Armstrong World Industries s ite consists of two areas in the south ern portion of Macon, Georgia. The first area of

concer n is located on the Armstrong World Industries property, lo cated at 4520 Broadway Street. The second is a remote landfill on the southern portion of the Armstrong property near Rocky Creek, and partially owned by the City of Macon Water Authority.

 **Sit e History:** 
Since 1948, Armstrong World Industries has operated an acoustic ceiling tile ma nufacturing plant at the site. Three t ypes of Armstrong ceiling tiles manufactured in 1969 and 1970 were coated with a commercial formulation of polychlorinated biphe nyls ( PCBs ) , and were recalled

. Although these tiles were not manufactured in Macon, the plant is believed to have been used at some point to recycle the recalled tiles. Armstrong began disposing of general and industrial trash, old equipment and excess ba rk and scrap wood in the Armstrong remote landfill in the mid

- 1960s. The fo rmer Macon Naval Ordnance Plant (FMNOP), which operated during World War II on property adjacent to the Armstrong facility, also disposed of sol id wastes, ordnance, used parts and construction debris in the remote landfill

. This landfill area lies in the flood plain of Rocky Creek, and the landfills are eroded and are often partially submerged by Rocky Creek floodwaters. The FMNOP encompassed approximately 433 acres and manufactured flares, small primers, detonators and other triggering mechanisms during World War II.

 **Site Contamination/Contaminants:**
High levels of PCBs have been found in the w astewater treatment plant landfill loca ted on the Armstrong property. The drainage pathwa ys from this area and the adjacent Rocky Creek have become contaminated with high levels of PCBs, and a PCB fish consumption advisory has been placed on Rocky Creek. In addition, soil samples from the remote landfill area contained elevated concentrations of semi -vol atile organic c ompounds, pesticides, PCBs and metals.

 **Potential Impacts on Surrounding Community/Environment :** 
PCBs and metals contamination has been detected in Rocky Creek, and a PCB fish consumption advisory has been placed on Rocky Creek in the area of the s ite.

 **Response Activities (to date):**
Several investigations have been conducted by EPA, the State of Georgia, and the U.S. Army Corp s of Engineers at the s ite.

 **Need for NPL Listing:**

The S tate of Georgia referred th e site to EPA because of the extent of contamination of onsite soils and the PCB contamination in Rocky Creek

. EPA received a letter from the s tate supporting listing of the site on the NPL.

[The description of the site (release) is based on information available at the time the site was evaluated with the HRS. The description may change as additional information is gathered on the sources and extent of contamination.]

For more information about the hazardous substances identified in this narrative summary, including general information regarding the effects o f exposure to these substances on human health, please see the Agency for Toxic Substances and Disease Registry (ATSDR) ToxFAQs. AT SDR ToxFAQs can be found on the Internet

at http://www.atsdr.cdc.gov/toxfaq.html or by telephone at 1

- 888

- 42

- ATSDR or 1

- 888

- 422

- 8737.