Tap WaterIndex

← Georgia

Tap water quality report

Marietta, GA

EPA monitoring detected 5 contaminants across the 3 water suppliers serving Marietta. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

3
water suppliers
755,100
people served
5
contaminants found
Georgia rankings Lead in Georgia PFAS in Georgia

What was found in Marietta's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Pfba
0.0065 µg/L
No EPA limit set
 1/3 UCMR-5
Pfhxa
0.0044 µg/L
No EPA limit set
 2/3 UCMR-5
PFBS
0.0042 µg/L
No EPA limit set
 1/3 UCMR-5
Pfpea
0.0038 µg/L
No EPA limit set
 1/3 UCMR-5
Lead
0.0029 mg/L 19%
of the EPA limit 0.0150 mg/L
 3/3 LCR
Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Marietta

SupplierPopulation served
COBB COUNTY 695,000
MARIETTA BOARD OF LIGHTS AND WATER 60,100
COBB CO.-MARIETTA WATER AUTH. 0

Frequently asked questions about Marietta tap water

Is Marietta tap water safe to drink?

EPA testing detected 5 contaminants in the water serving Marietta. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Marietta?

3 public water suppliers report drinking-water monitoring for Marietta, Georgia to the EPA. Each is listed above with its population served.

What contaminants are in Marietta's water?

The contaminants EPA monitoring detected in Marietta include Pfba, Pfhxa, PFBS, Pfpea, Lead. The full list, with the highest level found and the data source, is in the table above.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.