Groundwater in Oceana County contains iron, arsenic, and chloride. Iron exceeds EPA health standards in this county's wells, while arsenic and chloride are present at levels below their standards.
These contaminants come from the mixed rock and sediment layers beneath the county. Iron dissolves naturally as groundwater moves slowly through these materials. Arsenic exists in small amounts within certain minerals in the rock. Chloride enters through road salt applied during winter that seeps down into the water below.
Groundwater in this county is hard, driven by elevated calcium and magnesium from the surrounding rock and sediment. As water moves through these layers over time, it picks up these minerals and carries them into wells. Hard water is common across wells in Oceana County.
Iron exceeds EPA health standards in wells across this county. Long-term exposure to elevated iron can affect your organs and cause problems with how your body processes nutrients. Arsenic and chloride are also present in county groundwater at levels worth monitoring.
Hard water is very common in Oceana County wells. You may notice white, crusty scale buildup on faucets and inside pipes. Iron in the water can stain your sinks, toilets, and laundry orange or brown. Over time, this hard water can shorten the lifespan of water heaters and dishwashers.
We recommend testing your well water to find out what is actually in it. Every well is different, and your well may have higher or lower levels than what is common in the county. Testing is the only way to know for certain what needs treatment. A basic health screen typically costs $50-100, while a comprehensive metals and minerals panel runs $200-400. Iron filters or water softeners can help address these concerns.
Not sure if your well is affected? Get certified results in 5–7 days.
Test Your Well Water with Tap Score →| Contaminant | Samples ⓘ | % Above MCL ⓘ | Distribution ⓘ | Confidence ⓘ | Risk ⓘ |
|---|---|---|---|---|---|
| Iron | 8 | 12% | Low | Moderate ⓘ | |
| Arsenic | 8 | 0% | Low | Safe ⓘ | |
| Chloride | 8 | 0% | Low | Low ⓘ | |
| Fluoride | 8 | 0% | Low | Low ⓘ | |
| Lead | 2 | 0% | Low | Safe ⓘ | |
| Manganese | 8 | 0% | Low | Low ⓘ | |
| Nitrite | 34 | 0% | Moderate | Low | |
| Sulfate | 8 | 0% | Low | Low ⓘ | |
| Uranium | 2 | 0% | Low | Low ⓘ | |
| Nitrate | 34 | 0% | Moderate | Low | |
| Hardness | 8 | — | Low | Low ⓘ | |
| pH | 40 | — | Moderate | Low | |
| Sodium | 8 | — | 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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