Well Water in Hocking County: What to Test and Why

High Risk
Testing Strongly Recommended 9264 samples analyzed
Top Concerns in This County
Manganese Iron Sulfate

Why This Happens Here

Groundwater in Hocking County contains manganese, iron, and sulfate at levels that exceed EPA health standards. These contaminant levels are serious and require attention from well owners.

The rock beneath Hocking County naturally holds these minerals. As groundwater moves slowly through cracks and spaces in the limestone and shale below, it dissolves manganese and iron from the rock itself. Sulfate forms when water contacts minerals in these layers over long periods of time.

Groundwater in this county is hard, driven by elevated calcium and magnesium from the limestone bedrock, along with high iron and sulfate content. Water sitting in contact with iron-rich rock layers releases these metals directly into the water. Hard water with these mineral characteristics is widespread across wells throughout Hocking County.

What This Means for You

Wells in Hocking County commonly contain chloride, iron, manganese, and sulfate at levels exceeding EPA health standards. Manganese can damage how your brain and nervous system work, especially in children and over long periods of time. Chloride at high levels is a concern for people on low-sodium diets and can affect blood pressure. Iron and sulfate themselves are not direct health risks at the levels found here, but they contribute to the overall water quality picture in the county.

Beyond health concerns, wells in this county show hard water that leaves thick white scale buildup on pipes, fixtures, and inside appliances. Iron causes orange-brown or rust-colored stains on sinks, toilets, and laundry. You may notice a bitter or unpleasant taste from the sulfate, and some people detect a rotten-egg smell. The extremely hard water can shorten the lifespan of water heaters, dishwashers, and other appliances that use hot water.

We recommend testing your well to find out exactly what is in it, since every well is different and your water may have higher or lower levels than what is common in the county. Testing is the only way to know what treatment your family actually needs. A comprehensive metals and minerals panel typically costs between $200 and $400. Treatment options like whole-house water softeners combined with iron and manganese filters can address multiple concerns at once.

Not sure if your well is affected? Get certified results in 5–7 days.

Test Your Well Water with Tap Score →

Contaminant Detection Data

Contaminant Samples % Above MCL Distribution Confidence Risk
Manganese 18 88% 6% · 11% · 83% Moderate High
Iron 53 62% 26% · 13% · 60% Moderate High
Sulfate 77 34% 52% · 14% · 34% Moderate High
Chloride 62 10% 79% · 11% · 10% Moderate Moderate
Fluoride 22 0% 100% · 0% · 0% Moderate Low
HFPO-DA (GenX) ⓘ municipal 2 0% 100% · 0% · 0% Low Safe
PFNA ⓘ municipal 2 0% 100% · 0% · 0% Low Safe
PFOS ⓘ municipal 2 0% 100% · 0% · 0% Low Safe
PFOA ⓘ municipal 2 0% 100% · 0% · 0% Low Safe
PFHxS ⓘ municipal 2 0% 100% · 0% · 0% Low Safe
Uranium 1 0% 100% · 0% · 0% Low Low
Radon 1 0% 0% · 100% · 0% Low Low
Arsenic 4 0% 100% · 0% · 0% Low Low
pH 18 Moderate Low
Fecal Coliform 1 0% 100% · 0% · 0% Low Safe
Total Coliform 1 0% 100% · 0% · 0% Low Safe
Hardness 38 Moderate Low
PFBS ⓘ municipal 2 100% · 0% · 0% Low Safe
Sodium 59 Moderate Low
Nitrate 1 0% 100% · 0% · 0% Low Safe
Nitrite 1 0% 100% · 0% · 0% Low Safe
E. coli 1 0% 100% · 0% · 0% Low Safe
Lead 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.

Data shows potential risk — a certified test confirms whether your water is affected.

Order a Tap Score Test →

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