Well Water in Fulton County: What to Test and Why

High Risk
Testing Strongly Recommended 26294 samples analyzed
Top Concerns in This County
Iron Radon Arsenic

Why This Happens Here

Your well water comes from old limestone rock beneath Fulton County. This rock sits in valleys and ridges that fold through the land. Water fills cracks and spaces inside these rocks, and your well taps into this underground supply.

Radon, iron, and arsenic all come from the rock itself. Radon is a radioactive gas trapped inside the limestone. Iron dissolves out naturally when water sits in contact with the rock. Arsenic also comes from minerals in the stone. The folded, fractured nature of the limestone means water moves slowly through it, giving these elements time to enter your water.

Your water is extremely hard, with very high levels of iron, sodium, and sulfate. Hard water leaves white crusty buildup on pipes and fixtures. The iron causes orange-brown stains on sinks and laundry. You need a water test to know your levels and what treatment makes sense for your home.

What This Means for You

Your well water in Fulton County contains arsenic, radon, and iron all at levels that exceed EPA health standards. This is a serious concern that requires prompt testing and action. Arsenic and radon are invisible contaminants with no taste or smell, making professional testing essential to protect your family.

Long-term exposure to arsenic can damage your organs and increase cancer risk. Radon breathed in from shower steam and water use enters your lungs and raises lung cancer risk. High iron will stain your sinks, toilets, and laundry orange-brown, and the extremely hard water will leave white crusty buildup on pipes and fixtures.

Contact a state-certified lab immediately for a comprehensive metals panel including arsenic, radon, and other minerals—expect costs between $200 and $400. Once you have results, a water treatment professional can recommend a system to remove arsenic and reduce radon, iron, and hardness.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Radon 7 43% 29% · 29% · 43% Low High
Iron 67 42% 43% · 15% · 42% Moderate High
Arsenic 6 20% 67% · 17% · 17% Low High
Fluoride 5 0% 100% · 0% · 0% Low Low
Sulfate 53 0% 94% · 6% · 0% Moderate Low
Chloride 49 0% 100% · 0% · 0% Moderate Low
Uranium 6 0% 100% · 0% · 0% Low Low
Lead 31 0% 100% · 0% · 0% Moderate Low
Nitrite 5 0% 100% · 0% · 0% Low Low
Nitrate 3 Low Low
Hardness 9 Low Low
Manganese 1 0% 100% · 0% · 0% Low Safe
Fecal Coliform 1 Low Safe
Total Coliform 1 0% 100% · 0% · 0% Low Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
Nitrate 1 0% 100% · 0% · 0% Low Safe
pH 8 Low Low
Sodium 36 Moderate Low

MCL = Maximum Contaminant Level (EPA limit for public water; used as benchmark for private wells). Distribution shows % of sampled wells in each concentration band. Methodology.

Population Health Context

Population-level CDC data. Not individual risk prediction.

397.3%
Cancer Incidence Rate
(state avg: 448.6%)
8.2%
Cancer Prevalence
2.7%
Kidney Disease Rate

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