Well Water in York County: What to Test and Why

High Risk
Testing Strongly Recommended 216483 samples analyzed
Top Concerns in This County
Manganese Iron Radon

Why This Happens Here

Your well draws water from hard crystalline rock deep underground. This rock is very old and full of tiny cracks and fractures. Water seeps down through soil and into these fractures where it stays for a long time.

The dense, fractured nature of this rock keeps contamination out. Surface pollutants like road salt and farm chemicals cannot easily travel down through the solid stone to reach the water below. The rock acts as a natural filter and barrier.

Specific mineral content data for your area is not available, but crystalline-rock aquifers in this region generally produce water with natural minerals from the stone itself. You may notice changes in water color or taste over time, so testing your well every few years is smart. Talk to your county health department if you have concerns about your water quality.

What This Means for You

Your well water shows no detected contaminants that exceed EPA health standards. This is good news for your family's drinking water right now. However, the routing category suggests there may be concerns worth investigating further. Testing your water gives you the full picture of what's coming from your well.

Without mineral data available, we cannot identify any staining, scaling, taste, or odor problems at this time. Your water quality depends on your specific well location and depth. A certified lab test will show whether minerals or other substances are present in amounts that could affect your family over time.

Get your well tested by a state-certified lab to confirm these results and check for any hidden concerns. A basic health screen for bacteria and nitrate costs about fifty to one hundred dollars. A comprehensive metals and minerals panel runs two hundred to four hundred dollars and gives you complete peace of mind about your family's water.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Manganese 5 75% 40% · 0% · 60% Low High
Radon 47 66% 30% · 4% · 66% Moderate High
Iron 16 53% 38% · 12% · 50% Moderate High
Fluoride 3 50% 67% · 0% · 33% Low High
Chloride 99 12% 79% · 9% · 12% Moderate Moderate
Sulfate 60 5% 80% · 15% · 5% Moderate Moderate
Uranium 21 0% 100% · 0% · 0% Moderate Low
Arsenic 14 0% 86% · 14% · 0% Low Low
Fecal Coliform 1 Low Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
Sodium 76 Moderate Low
pH 14 Low Low
Total Coliform 1 0% 100% · 0% · 0% Low Safe
Lead 1 0% 100% · 0% · 0% Low Safe
Nitrate 1 0% 100% · 0% · 0% Low Safe
Nitrite 1 0% 100% · 0% · 0% Low Safe
Nitrate 40 Moderate Low
Nitrite 39 Moderate Low
Hardness 21 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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