Well Water in Adams County: What to Test and Why

High Risk
Testing Strongly Recommended 13540 samples analyzed
Top Concerns in This County
Manganese Iron Sulfate

Why This Happens Here

Your well water in Adams County comes from old rock layers deep underground that have cracks and small spaces holding water. These rock formations are the same ones found in neighboring counties to the north and south. Water moves slowly through tiny fractures in this bedrock to reach your well.

Radon, manganese, and sulfate all come from the rock itself. As water sits in contact with this bedrock over time, it dissolves minerals and radioactive elements naturally present in the stone. This is not pollution from farming or industry—it is the water's natural chemistry shaped by the geology beneath your land.

Your water is extremely hard and loaded with minerals. You will see white crusty buildup on faucets and inside pipes, and iron will stain your sinks and laundry orange or brown. Sulfate gives the water an unpleasant taste and can damage pipes over time. Test your well now through a state-certified lab and talk to a licensed water treatment specialist about what system fits your home.

What This Means for You

Radon, manganese, and sulfate in Adams County wells all exceed EPA health standards. Radon is a radioactive gas that builds up in homes and increases lung cancer risk. Manganese harms brain development in children and can damage the nervous system in adults. These are serious concerns that need immediate attention.

Long-term exposure to manganese causes problems with memory, attention, and movement. High sulfate levels cause diarrhea and stomach problems. The extremely high iron, sodium, and sulfate levels will stain your fixtures orange, leave white crusty buildup on pipes and appliances, and make water taste bad. Your water is extraordinarily hard, which damages water heaters and shortens appliance life.

Get your well tested immediately by a state-certified lab. A comprehensive metals and minerals panel costs $200–400 and will tell you exactly what you're dealing with. You will likely need multiple treatment systems—a radon mitigation system paired with a water softener and iron filter to address these overlapping problems.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Radon 1 100% 0% · 0% · 100% Low High
Manganese 8 57% 25% · 25% · 50% Low High
Sulfate 37 19% 73% · 8% · 19% Moderate High
Iron 11 10% 82% · 9% · 9% Low Moderate
Chloride 41 10% 88% · 2% · 10% Moderate Moderate
Arsenic 4 0% 100% · 0% · 0% Low Low
Fluoride 6 0% 100% · 0% · 0% Low Low
Lead 2 0% 100% · 0% · 0% Low Low
Uranium 1 0% 100% · 0% · 0% Low Low
Sodium 37 Moderate Low
pH 10 Low Low
Nitrite 1 0% 100% · 0% · 0% Low Safe
Nitrate 4 Low Low
E. coli 1 0% 100% · 0% · 0% Low Safe
Nitrate 1 0% 100% · 0% · 0% Low Safe
Hardness 39 Moderate Low
Total Coliform 1 0% 100% · 0% · 0% Low Safe

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.

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