Well Water in Snyder County: What to Test and Why

High Risk
Testing Strongly Recommended 32950 samples analyzed
Top Concerns in This County
Iron Manganese Radon

Why This Happens Here

Your well water comes from fractured layers of shale, sandstone, and old limestone buried deep underground in the Valley and Ridge. These rock layers are folded and cracked, creating spaces where water flows. The water sits in contact with these rocks for a long time, picking up whatever is dissolved in them.

Iron and manganese seep out of the dark shale and sandstone as groundwater moves through. Radon comes from tiny amounts of uranium and radium in the rock that decay naturally and release gas into the water. The sulfate in your water forms when rainwater contacts minerals like pyrite in these rock layers, breaking them down chemically.

Your water is extremely hard, with very high levels of iron, sodium, and sulfate. This means white crusty buildup appears on fixtures, and reddish-brown staining shows up in sinks and toilets. You need a treatment system to remove these minerals and metals before using the water for drinking and cooking.

What This Means for You

Iron, manganese, and radon in Snyder County well water all exceed EPA health standards. This is a high-urgency situation that needs your attention right now. Your water has serious contamination from naturally occurring minerals in the bedrock beneath your property.

Long-term exposure to manganese can harm your brain and nervous system, especially in children. Iron at these extreme levels stains your sinks, toilets, and laundry dark brown or orange. Your water is also extremely hard and leaves crusty white buildup on fixtures. The sulfate in your water gives it a bitter taste and strong odor.

Get your well tested immediately through a state-certified lab—a basic bacteria and nitrate screen costs fifty to one hundred dollars, while a comprehensive metals and radon panel runs two hundred to four hundred dollars. A whole-house treatment system combining aeration, filtration, and water softening can address these multiple problems.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Iron 6 60% 50% · 0% · 50% Low High
Manganese 70 58% 31% · 11% · 57% Moderate High
Radon 11 46% 36% · 18% · 46% Low High
Chloride 39 0% 100% · 0% · 0% Moderate Low
Arsenic 2 0% 100% · 0% · 0% Low Low
Uranium 3 0% 100% · 0% · 0% Low Low
Nitrite 12 0% 100% · 0% · 0% Low Low
Sulfate 46 0% 94% · 6% · 0% Moderate Low
Sodium 42 Moderate Low
pH 13 Low Low
Fluoride 1 0% 100% · 0% · 0% Low Safe
Lead 1 0% 100% · 0% · 0% Low Safe
Nitrate 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
Hardness 18 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.

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