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Well Water Filtration Systems in Southern NH

A.J. LeBlanc Heating collects a water sample for independent laboratory testing, then designs well-water treatment around the results. Our licensed New Hampshire plumbers install systems for arsenic, iron, manganese, sulfur odor, sediment, hardness, and confirmed bacteria.

Licensed NH Plumbers
Well Water Specialists
Three-tank well water filtration system with copper plumbing and manual control valves installed by A.J. LeBlanc Heating in a Southern NH basement
Well Water Treatment Specialists

Custom Well Water Treatment for Southern NH

Private well water in Southern NH may contain arsenic, radon, iron, manganese, sulfur odors, sediment, hardness, or bacteria. Naturally occurring arsenic and radon are well documented in New Hampshire bedrock groundwater, which is why the New Hampshire Department of Environmental Services (NHDES) includes both in its recommended private-well testing. A.J. LeBlanc Heating collects water samples for an independent laboratory and uses the results to recommend treatment for concerns within our scope, including arsenic, iron, manganese, sulfur odors, sediment, hardness, and bacteria. If the laboratory confirms radon in the water, we can provide contact information for an independent radon-mitigation company.

Arsenic treatment system for well water installed by A.J. LeBlanc Heating in a Southern NH home, with a clear sediment pre-filter and copper plumbing feeding a fiberglass arsenic filter media tank
Arsenic & Sediment Pre-Filtration

Multi-Stage Arsenic Removal for NH Well Water

Arsenic cannot be seen, smelled, or tasted, so laboratory testing is the only way to know whether it is present. The system shown here treats the home's water in stages. A sediment pre-filter captures grit, rust, and fine particles before they reach the arsenic-treatment media. We size each stage from the reported laboratory results and the household's water demand.

Why Choose LeBlanc

A Trusted Choice in Southern NH, Family-Owned Since 1928

Well Water Specialists

We install treatment for arsenic, iron, manganese, sulfur odors, hardness, sediment, and confirmed bacteria. For radon in water, we provide contact information for an independent mitigation company.

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 collect a water sample and send it to an independent laboratory before recommending treatment. A fee applies unless you provide recent laboratory results.

Readers' Choice Winner

A Readers' Choice plumbing winner with New Hampshire homeowners every year since 2013.

Well Water Treatments

Common Well Water Treatment Systems

Iron and Manganese Removal

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
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Sulfur and Sediment Treatment

Sulfur Odor and Sediment Removal

A rotten-egg odor may come from hydrogen sulfide, sulfur bacteria, the water heater, or another condition. We use the independent laboratory result and where the odor appears to identify the likely source before recommending treatment. Sediment filtration is selected separately when sand, silt, or other particles are present.

  • 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
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Arsenic Treatment & Radon Referrals

Arsenic Treatment and Radon Test Results for NH Wells

Arsenic and radon can occur naturally in New Hampshire groundwater, which is why NHDES includes both in its recommended private-well testing. A.J. LeBlanc Heating can collect a sample for an independent laboratory and install arsenic treatment selected for the result. If the laboratory confirms radon in the water, we can provide contact information for an independent radon-mitigation company.

  • Point-of-use reverse osmosis at the kitchen sink for drinking and cooking
  • Whole-home arsenic filter media, including granular ferric oxide and other iron-based options
  • Treatment matched to arsenic III vs. arsenic V chemistry
  • Independent radon-mitigation company referrals when testing shows they are needed
  • Water samples collected and sent to an independent laboratory before treatment is selected
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Ready to Fix Your Well Water?

Free Well Water Treatment Estimate

Call or fill out the form. We will assess your water quality issues and recommend the right treatment system.

Common Questions

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?

A rotten-egg odor may come from hydrogen sulfide, sulfur bacteria, or the water heater. We test the water and confirm where the odor appears before recommending treatment, which may include oxidation and filtration when hydrogen sulfide is the cause.

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. NHDES includes arsenic and radon in its recommended testing for New Hampshire bedrock wells. A.J. LeBlanc Heating can collect a sample and send it to an independent laboratory. We install treatment for arsenic, and if the result confirms radon in the water, we can provide contact information for an independent radon-mitigation company.

How do you treat arsenic in well water?

Arsenic can be treated at the point of use with a reverse osmosis system at the kitchen sink for drinking and cooking water. Whole-house options use arsenic-specific media, such as granular ferric oxide or another iron-based treatment. The right approach depends on the arsenic concentration, whether the sample contains arsenic III or arsenic V, and how the home uses water. We use the independent laboratory result to recommend and install the appropriate arsenic-treatment system.

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