Groundwater in Essex County contains manganese, iron, and lead at levels high enough to exceed EPA health standards. These contaminants are present at concerning concentrations that well owners should monitor and test for.
The rocks beneath Essex County naturally contain iron and manganese minerals that dissolve into groundwater over time. Lead enters water through older pipes and plumbing fixtures rather than from the rock itself. These contaminants are common in this region because the local rock type readily releases iron and manganese when water flows through it.
Groundwater in Essex County is hard, driven mainly by calcium and magnesium dissolved from the rock. The same geological conditions that create hardness also allow iron and manganese to enter the water as it moves underground. Hard water with elevated iron and manganese is widespread across wells throughout the county.
Wells in Essex County sometimes have chloride, iron, lead, and manganese above EPA health standards. Lead can harm children's brain development and cause learning problems. Manganese affects the nervous system, especially in young children. Chloride and iron also pose health risks when present at elevated levels. Testing your well is the only way to know what you are actually dealing with.
Hard water is common in county wells and can leave white crusty buildup on faucets and shower heads. You may notice staining from iron on sinks and toilets. The hardness can shorten the lifespan of water heaters and dishwashers over time. Some people also notice a slightly salty taste in their water.
We recommend a comprehensive water test since several contaminants exceed health standards in this county. Every well is different, and your water may have higher or lower levels than what is typical here. A full panel usually costs between two hundred and four hundred dollars and is the only way to know exactly what needs treatment. Iron filters and water softeners can address multiple concerns in county wells.
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 ⓘ |
|---|---|---|---|---|---|
| Manganese | 53 | 19% | Moderate | High | |
| Iron | 26 | 12% | Moderate | Moderate | |
| Lead | 239 | 2% | High | Low | |
| Chloride | 124 | 1% | High | Low | |
| Arsenic | 122 | 0% | High | Safe | |
| Fluoride | 138 | 0% | High | Low | |
| Nitrate | 172 | 0% | High | Low | |
| Nitrite | 151 | 0% | High | Low | |
| Radon | 2 | 0% | Low | Low ⓘ | |
| Sulfate | 3 | 0% | Low | Low ⓘ | |
| Uranium | 95 | 0% | Moderate | Low | |
| Sodium | 26 | — | Moderate | Low | |
| pH | 23 | — | Moderate | Low | |
| Hardness | 27 | — | 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.
* 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.
Order a Tap Score Test →Population-level CDC data. Not individual risk prediction.
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