Well Water in Harrison County: What to Test and Why

High Risk
Testing Strongly Recommended 51835 samples analyzed
Top Concerns in This County
Manganese Iron Sulfate

Why This Happens Here

The water under your well sits in fractured layers of dark shale and sandstone left behind from ancient swamps. These rocks are part of a system that stretches across five counties in eastern Ohio. Water fills the cracks and spaces between the rock grains, moving slowly downward as you pump.

Iron, manganese, lead, and sulfate come straight out of the rock itself. The shale layers contain minerals that dissolve when water passes through them. Coal mining in the region added chloride and other salts to groundwater over decades. Radon gas seeps from the rock because it contains trace amounts of uranium that break down naturally.

Your water is extremely hard and carries high levels of sodium and sulfate. You will see orange or brown staining on sinks and laundry from iron and manganese. The water may taste metallic or slightly salty. Pipes and water heaters will build up heavy white crusty scale. Get your well tested for all five contaminants and talk to a water treatment professional about a whole-house system.

What This Means for You

Lead, manganese, and iron all exceed EPA health standards in Harrison County well water. Radon, chloride, and sulfate also exceed EPA limits. This is a serious health situation that needs your attention right away.

Long-term exposure to lead damages the brain and kidneys, especially in children. Manganese can harm your nervous system over time. Iron at these extreme levels will stain your sinks, toilets, and laundry orange or brown. Your water will taste metallic and smell bad. The water is extremely hard and will leave thick white buildup on pipes and fixtures.

Get your well tested by a certified lab immediately. A basic health screen for bacteria and nitrate costs fifty to one hundred dollars. A comprehensive metals and minerals panel costs two hundred to four hundred dollars. You need the full panel because your water has multiple serious contaminants. A whole-house treatment system combining aeration, iron filtration, and water softening may help, but talk to a treatment professional first about what your water needs.

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Lead 2 100% 50% · 0% · 50% Low High
Manganese 45 89% 7% · 7% · 87% Moderate High
Iron 91 52% 37% · 11% · 52% Moderate High
Radon 2 50% 50% · 0% · 50% Low High
Sulfate 75 43% 44% · 13% · 43% Moderate High
Chloride 60 8% 78% · 13% · 8% Moderate Moderate
Arsenic 4 0% 100% · 0% · 0% Low Low
Fluoride 19 0% 100% · 0% · 0% Moderate Low
Uranium 2 0% 100% · 0% · 0% Low Low
E. coli 1 0% 100% · 0% · 0% Low Safe
Fecal Coliform 1 Low Safe
Hardness 49 Moderate Low
Nitrate 1 0% 100% · 0% · 0% Low Safe
Nitrate 1 Low Safe
Nitrite 1 0% 100% · 0% · 0% Low Safe
pH 10 Low Low
Sodium 62 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.

9.9%
Heart Disease Rate

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