Well Water Filtration Systems in Southern NH
Custom well water treatment for arsenic, iron, manganese, sulfur, sediment, hardness, and bacteria. Sized and configured for the high-arsenic bedrock geology of Southern NH private wells.
Custom Well Water Treatment for Southern NH
Private well water in Southern NH often contains arsenic, radon, iron, manganese, sulfur odors, sediment, hardness, or bacteria that city water does not. New Hampshire's granite bedrock leaves the state with some of the highest naturally occurring arsenic and radon levels in the country, and state guidance recommends every private well be tested. A.J. LeBlanc Heating arranges testing and treats each issue with systems sized for your specific water chemistry (radon aeration is coordinated through a trusted mitigation partner), never a one-size-fits-all approach.
Multi-Stage Arsenic Removal for NH Well Water
Arsenic is one of the few well water contaminants you cannot see, smell, or taste, so it often goes unnoticed until a water test finds it, even as long-term exposure carries real health risks. The system in this Southern NH home treats it in stages: water from the well first passes through the clear sediment pre-filter, which captures grit, rust, and fine particles before they reach the arsenic media. That pre-filtration protects the arsenic tank from clogging and fouling, so it keeps removing arsenic consistently and lasts longer between service visits. We size every stage to your specific water test, so the system is built around exactly what your well contains.
A Trusted Choice in Southern NH, Family-Owned Since 1928
Well Water Specialists
We have extensive experience with local well water issues including arsenic, radon, iron, manganese, sulfur, hardness, and sediment.
Licensed NH Plumbers
Our licensed master and journeyman plumbers handle every well water treatment installation, with proper sizing and configuration for your well and home.
Water Testing Available
We can arrange water testing to identify exactly what is in your well water before recommending treatment.
Readers' Choice Winner
A Readers' Choice plumbing winner with New Hampshire homeowners every year since 2013.
Common Well Water Treatment Systems
Iron and Manganese Filtration
Iron is one of the most common well water problems in our area. It causes orange staining on fixtures, laundry, and appliances, while manganese causes black staining. The right filtration system, sized to your water test, helps reduce both.
- Iron filter media systems for dissolved iron
- Oxidation and filtration for ferric iron
- Manganese removal media
- Helps reduce orange and black staining on fixtures and laundry
- Sized to your well's flow rate and iron concentration
Sulfur Odor and Sediment Removal
A rotten egg smell in well water is caused by hydrogen sulfide gas, a common issue in New Hampshire wells. Sediment filters remove sand, silt, and particulates that can damage appliances and clog fixtures.
- Aeration and carbon treatment for sulfur odor
- Oxidizing filters for hydrogen sulfide
- Whole-house sediment pre-filters
- Protects water heaters, fixtures, and appliances
- Combined iron, sulfur, and sediment packages available
Arsenic & Radon Treatment for NH Wells
New Hampshire's granite bedrock makes naturally occurring arsenic and radon two of the most common (and most under-tested) well water concerns in Southern NH. State guidance recommends every private well be tested. A.J. LeBlanc Heating arranges testing, installs arsenic treatment matched to your water's chemistry, and partners with radon mitigation specialists when aeration is needed.
- Point-of-use reverse osmosis at the kitchen sink for drinking and cooking
- Whole-home arsenic-specific adsorption media (granular ferric oxide, iron-based)
- Treatment matched to arsenic III vs. arsenic V chemistry
- Radon-in-water aeration coordinated through our radon mitigation partners
- Water testing arranged before any treatment is recommended
Free Well Water Treatment Estimate
Call or fill out the form. We will assess your water quality issues and recommend the right treatment system.
Frequently Asked Questions
How do I know what is wrong with my well water?
Common signs include orange staining (iron), black staining (manganese), rotten egg smell (hydrogen sulfide), cloudy water (sediment), or scale buildup (hardness). A water test gives you exact concentrations. We can help arrange testing before recommending a system.
What causes the rotten egg smell in well water?
The smell is caused by hydrogen sulfide gas, which is naturally occurring in some New Hampshire groundwater. It is not a health hazard at typical levels but is unpleasant. Aeration systems or oxidizing filters help reduce it.
Can you treat iron in well water?
Yes. Iron treatment systems use oxidation and filtration to remove both dissolved and particulate iron. The right approach depends on your iron concentration and whether you also have manganese or sulfur issues.
Do well water filters need maintenance?
Yes. Most well water treatment systems require periodic backwashing, media replacement, or salt addition depending on the system type. We will explain what your specific system needs.
Should I test my Southern NH well for arsenic and radon?
Yes. New Hampshire has one of the highest rates of naturally occurring arsenic and radon in private well water in the country due to bedrock geology, with elevated levels common in granite-rich towns. State guidance recommends every private well be tested. A.J. LeBlanc Heating can help arrange a state-approved water test and recommend treatment if arsenic or radon levels are elevated.
How do you treat arsenic in well water?
Arsenic is treated either at the point of use with a reverse osmosis system at the kitchen sink for drinking and cooking water, or whole-home with arsenic-specific adsorption media such as granular ferric oxide or iron-based filtration. The right approach depends on the arsenic concentration, whether it is arsenic III or arsenic V, and how the home uses water. We test, recommend, and install the appropriate system.
Get in Touch
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Contact Information
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Evenings & Weekends: Emergency Service
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