Cobb County, GA
The federal environmental record for Cobb County (population 776,743): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
20
federal cleanup sites
4
PFAS-detecting water systems
30
TRI facilities
34
open tank releases
Drinking water: PFAS testing
Public water systems serving Cobb with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| AUSTELL GA0670001 | PFBS: 3.6 ng/L | detected |
| COBB COUNTY GA0670003 | PFBA: 6.5 ng/L PFBS: 4.2 ng/L PFHxA: 3.2 ng/L | detected |
| MARIETTA GA0670005 | PFHxA: 4.4 ng/L PFPeA: 3.8 ng/L | detected |
| SMYRNA GA0670007 | PFPeA: 4 ng/L PFHxA: 3.7 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
30 facilities in Cobb filed TRI reports for 2024, totalling 227k lb released. The 25 largest by volume:
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| MCDONOUGH/ATKINSON STEAM ELECTRIC GENERATING PLANT | ATLANTA | Ammonia | 180k lb |
| OLDCASTLE INFRASTRUCTURE - ACWORTH | ACWORTH | Methyl methacrylate, Styrene | 14k lb |
| BLUESCOPE COATED PRODUCTS LLC | MARIETTA | Xylene (mixed isomers), n-Butyl alcohol | 8k lb |
| FIRST AMERICAN RESOURCES CO | MABLETON | Xylene (mixed isomers), Antimony compounds | 6k lb |
| AJAY NA LLC | POWDER SPRINGS | Selenium And Selenium Compounds, Copper And Copper Compounds | 5k lb |
| PRC-DESOTO INTERNATIONAL INC. | KENNESAW | Manganese compounds, Toluene | 3k lb |
| MPLX TERMINALS LLC - POWDER SPRINGS GA TERMINAL | AUSTELL | n-Hexane, Toluene | 3k lb |
| ARYLESSENCE INC. | MARIETTA | 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran | 2k lb |
| AVIENT CORP | KENNESAW | Zinc compounds, Antimony And Antimony Compounds | 2k lb |
| HUDSON TECHNOLOGIES CO | ATLANTA | Chlorodifluoromethane (HCFC-22), 2,2-Dichloro-1,1,1-trifluoroethane (HCFC-123) | 2k lb |
| TIP TOP POULTRY INC | MARIETTA | Peracetic acid | 923 lb |
| KEMIRA WATER SOLUTIONS INC. | MARIETTA | Ammonia, Acrylic acid | 773 lb |
| COMPASS CHEMICAL INTERNATIONAL LLC | SMYRNA | Formaldehyde, Methanol | 584 lb |
| DOW CHEMICAL CO | MARIETTA | Diisocyanates, Toluene diisocyanate (mixed isomers) | 535 lb |
| INTERSPACE/CONCORDE BATTERY GEORGIA CORP | AUSTELL | Lead And Lead Compounds | 76 lb |
| CARAUSTAR MILL GROUP INC AUSTELL BOXBOARD MILLS | AUSTELL | Lead compounds | 51 lb |
| STERIGENICS US LLC-ATLANTA GA FACILITY | ATLANTA | Ethylene oxide | 50 lb |
| ALEX C FERGUSSON LLC | MARIETTA | Certain glycol ethers | 26 lb |
| U.S. DOD USAFR DOBBINS ARB | MARIETTA | Naphthalene | 2 lb |
| QUIKRETE - MARIETTA GA PLANT | MARIETTA | Lead | 1 lb |
| THOMAS CONCRETE - KENNESAW | KENNESAW | Lead And Lead Compounds | 0 lb |
| READY MIX USA LLC - MARIETTA PLANT | MARIETTA | - | 0 lb |
| ILLINOIS TOOL WORKS CONTAMINATION CONTROL ELECTRONICS | KENNESAW | - | 0 lb |
| CHEMSTATION ATLANTA | MARIETTA | - | 0 lb |
| BRENNTAG MID-SOUTH INC. | KENNESAW | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 1,160 tank facilities in Cobb: 1,177 tanks in service and 2,479 closed. 955 fuel releases are on record, of which 34 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Cobb as Zone 1, the highest predicted indoor radon levels (over 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Cobb, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- AMREP INDUSTRIAL FIREMARIETTA
- APOLLO INDUSTRIES INCSMYRNA
- C & S CHEMICALS TANK FAILUREAUSTELL
- COBB COUNTY METH LABSMYRNA
- COSCO INTERNATIONALMARIETTA
- CUSTOM PLASTICS AND INNOVATIONS FIREMABLETON
- DAYTONA ANTIFREEZEMARIETTA
- DOBBINS AIR RESERVE BASEMARIETTA
- FORMER GLOVER MACHINE WORKSMARIETTA
- FORMER WAMA MANUFACTURINGAUSTELL
- HICKS ROAD MERCURYAUSTELL
- LEGENDARY MEATSMARIETTA
- LOCKHEED MARTIN AERONAUTICAL SYSTEMSMARIETTA
- LYNX CHEMICAL GROUP, SMYRNA PLANTSMYRNA
- MARIETTA NAOH RELEASEMARIETTA
- OLD CASTLE - ACWORTHACWORTH
- POWDER SPRINGS ROAD PLATINGAUSTELL
- SIMONIZ CAR WASHMARIETTA
- TORRES TIRE COMPANYROSWELL
- WIGGINS TECHNOLOGYMARIETTA