Well Water in Ector County: What to Test and Why

Low Risk
Informational — Low Risk Detected 385 well tests on record
Top Concerns in This County
Arsenic Iron Nitrate

Why This Happens Here

Groundwater in Ector County contains arsenic, iron, nitrate, fluoride, manganese, and uranium. Several of these contaminants exceed EPA health standards and warrant attention.

These metals and minerals come from the rock layers that make up the High Plains aquifer beneath this area. As water moves slowly through sand and sediment, it dissolves naturally occurring arsenic, uranium, and fluoride from the surrounding rock. Nitrate enters from agricultural activities and other land uses on the surface that allow it to seep down into the water below.

Groundwater in this county is marked by moderate iron content along with elevated levels of arsenic, uranium, fluoride, and manganese. These elements dissolve naturally from the sand, gravel, and mineral deposits in the aquifer as water sits in contact with the rock. Iron appears in many wells across the county, while arsenic and uranium are also widespread enough to be a common concern.

What This Means for You

Wells in Ector County contain arsenic, fluoride, uranium, and nitrate at levels that exceed EPA health standards. Arsenic can harm the kidneys and increase cancer risk over time. Fluoride at elevated levels can damage tooth enamel in children. Uranium and nitrate also pose health concerns with long-term exposure. These contaminants occur naturally in the groundwater across the county.

Iron and manganese in county wells create rust-colored or brown staining on fixtures, laundry, and skin. The water may have a metallic taste or smell. These minerals build up inside pipes and can reduce the lifespan of water heaters and dishwashers.

Every well in Ector County is different, and your well may have much higher or lower levels than what is common countywide. Testing is the only way to know what is actually in your water so you can treat it properly. We recommend a comprehensive metals and minerals panel, which typically costs $200 to $400. Treatment options like reverse osmosis or ion exchange can help reduce many of these contaminants.

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

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Contaminant Detection Data

Contaminant Samples ⓘ % Above MCL ⓘ Distribution ⓘ Confidence ⓘ Risk ⓘ
Arsenic 95 23%
Moderate High
Iron 100 17%
High High
Nitrate 15 13%
Moderate Moderate
Manganese 96 11%
Moderate Moderate
Uranium 34 6%
Moderate Moderate
Fluoride 377 3%
High Moderate
Elevated concentration, not % above limit
HFPO-DA (GenX) ⓘ municipal 6 0%
Low Safe ⓘ
Lead 95 0%
Moderate Low
PFHxS ⓘ municipal 6 0%
Low Low ⓘ
PFNA ⓘ municipal 6 0%
Low Safe ⓘ
PFOA ⓘ municipal 6 0%
Low Safe ⓘ
PFOS ⓘ municipal 6 0%
Low Safe ⓘ
PFBS ⓘ municipal 6 —
Low 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.
* Microbial contaminants (E. coli, coliform) reflect only samples from the last 10 years.

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

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Population Health Context

Population-level CDC data. Not individual risk prediction.

4.5%
Cancer Prevalence
(state avg: 6.1%)
2.8%
Kidney Disease Rate
(state avg: 3.3%)

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