Cobb, GA
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Cobb in Georgia · Population: 769,152
TRI sites such as McDonough/atkinson Steam Electric Generating Plant; Oldcastle Infrastructure - Acworth; Ajay Na LLC; SDWIS systems such as COBB COUNTY; MARIETTA BOARD OF LIGHTS AND WATER; SMYRNA anchor Cobb, GA's EPA extract. Derived burden score 49/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Health-flagged SDWIS rows in Cobb include VENTURA VILLAGE, while McDonough/atkinson Steam Electric Generating Plant leads reported TRI pounds among local Form R filers. AQS median AQI 48 / peak 86 in 2024.
Burden score 49/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Cobb -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Cobb, GA: EPA TRI 2023 reporting year
Same facilities, both years
+1.5%
26 facilities that filed in 2022 and 2023
Whole inventory
+1.4%
721.3 thousand lb → 731.1 thousand lb, every facility that filed
Between the two reporting years, 2 facilities filed for the first time and 2 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Cobb, GA's total reported releases rose from 718.4 thousand lb in 2022 to 729.0 thousand lb in 2023, based on EPA TRI filings.
- Cobb, GA's land releases fell from 16 lb in 2022 to 0 lb in 2023, based on EPA TRI filings.
- Cobb, GA's water releases fell from 849 lb in 2022 to 97 lb in 2023, based on EPA TRI filings.
- Cobb, GA's off-site transfers fell from 71.4 thousand lb in 2022 to 62.9 thousand lb in 2023, based on EPA TRI filings.
Air Quality History (2020–2024)
EPA Air Quality Index (AQI) data showing how many days per year fall into each air quality category.
| Year | Good | Moderate | Unhealthy (SG) | Max AQI |
|---|---|---|---|---|
| 2024 | 202 (55%) | 162 | 0 | 86 |
| 2023 | 215 (67%) | 105 | 3 | 125 |
| 2022 | 231 (81%) | 53 | 1 | 105 |
| 2021 | 218 (76%) | 67 | 0 | 80 |
| 2020 | 243 (85%) | 42 | 0 | 91 |
Source: EPA Air Quality System (AQS) Annual AQI by County AQI categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), Hazardous (301+)
For real-time air quality readings and pollutant breakdowns in Georgia, see the EPA's AirNow.gov.
Water Systems (10)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| COBB COUNTY | 695,000 | 0 |
| MARIETTA BOARD OF LIGHTS AND WATER | 60,100 | 0 |
| SMYRNA | 40,508 | 0 |
| AUSTELL | 7,774 | 0 |
| FSI GREEN PARK SOUTH PROPERTY LLC | 888 | 0 |
| YES SOUTHGATE, LLC | 315 | 0 |
| WATERFALL COUNTRY CLUB WATER SYSTEM | 156 | 0 |
| VENTURA VILLAGE | 100 | 1 |
| FISH HOOK POINT SUBDIVISION | 52 | 0 |
| COBB CO.-MARIETTA WATER AUTH. | 0 | 0 |
TRI Facilities (31)
Cities in Cobb (7)
Frequently Asked Questions
What is the environmental risk level in Cobb, Georgia? ▼
Are there Superfund sites in Cobb? ▼
How many toxic release facilities are in Cobb? ▼
What is the air quality in Cobb? ▼
Is the drinking water safe in Cobb? ▼
What environmental agencies cover Cobb? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.