Well Water in Greensville County: What to Test and Why

High Risk
Testing Strongly Recommended 2979 samples analyzed
Top Concerns in This County
Manganese Iron Nitrite

Why This Happens Here

Groundwater in Greensville County contains manganese, iron, arsenic, nitrite, and radon at levels that exceed EPA health standards. These contaminant levels are serious enough to require action by well owners.

The Northern Atlantic Coastal Plain aquifer system here is made up of sand and clay layers that sit above older rock. Iron and manganese dissolve naturally from these sediments and minerals as water moves through the ground. Arsenic and nitrite enter groundwater through natural geological sources and human activities like agriculture and wastewater. Radon seeps into water from uranium decay in the rock below.

Groundwater in this county is soft, but it contains elevated iron that gives the water its notable character. Iron concentration in the ground here reflects the sediment composition of the coastal plain aquifer. This elevated iron signature shows up in many wells throughout the county.

What This Means for You

Wells in Greensville County contain arsenic, radon, nitrite, and elevated iron and manganese at levels that exceed EPA health standards. Arsenic accumulates in your body over time and increases the risk of cancer and organ damage. Radon is a radioactive gas that causes lung cancer when breathed in over years. Nitrite prevents your blood from carrying oxygen properly, especially in babies and young children. Iron and manganese at high levels can harm your organs with long-term exposure.

The high iron in county wells causes orange or brown staining on fixtures, laundry, and dishes. It creates a metallic or bitter taste in your water and can clog pipes and screens. Your water heater and other appliances may wear out faster because of the mineral buildup. The county's soft water means scale buildup is less of a problem than in harder areas.

We recommend a comprehensive metals and minerals panel to find out exactly what is in your well, since every well in this county is different and yours could have much higher or lower levels than average. Testing costs between $200 and $400 and is the only way to know what treatment your water actually needs. Radon requires venting systems, while arsenic, nitrite, and excess iron can be removed with filtration or other treatment methods matched to your specific results.

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 12 100% 8% · 0% · 92% Low High
Iron 31 74% 13% · 13% · 74% Moderate High
Radon 2 50% 50% · 0% · 50% Low High
Arsenic 3 50% 67% · 0% · 33% Low High
Nitrite 8 14% 88% · 0% · 12% Low Moderate
Chloride 14 0% 100% · 0% · 0% Low Low
Sulfate 18 0% 100% · 0% · 0% Moderate Low
Chloride 14 0% 100% · 0% · 0% Low Low
Sulfate 18 0% 100% · 0% · 0% Moderate Low
Uranium 1 0% 100% · 0% · 0% Low Low
Nitrate 8 0% 100% · 0% · 0% Low Low
PFBS ⓘ municipal 4 100% · 0% · 0% Low Safe
pH 13 Low Low
Sodium 19 Moderate Low
Fluoride 1 0% 100% · 0% · 0% Low Safe
Fecal Coliform 1 0% 100% · 0% · 0% Low Safe
Lead 1 0% 100% · 0% · 0% Low Safe
Hardness 25 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.

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

Order a Tap Score Test →

Population Health Context

Population-level CDC data. Not individual risk prediction.

5.5%
Cancer Prevalence
(state avg: 6.7%)
3.5%
Kidney Disease Rate
(state avg: 3.1%)

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