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Arsenic Removal in Londonderry and Southern New Hampshire
Table of Contents
Arsenic gets into well water the slow way: it dissolves out of the bedrock your well is drilled into. State estimates put roughly one in five private bedrock wells in New Hampshire above the 5 parts per billion limit, and arsenic has no taste, smell, or color to warn you.
At Mainline Plumbing, we test your water, whether it comes from a private well or the town, and install an arsenic water filter matched to the results, so the water your family drinks and cooks with is treated. Arsenic is most common in bedrock wells, but we treat it from any source, and we explain the numbers in plain terms before you spend anything on equipment.
Arsenic Removal Services in Southern New Hampshire
How you treat arsenic depends on how much is in your water and what else comes along with it.
Arsenic Water Testing
A lab test is the only way to know what’s in your well. NHDES recommends checking for the specific form of arsenic before picking treatment, because one form calls for an extra pre-treatment step. We can start with water quality testing so the equipment fits your actual water.
Arsenic Water Filter Installation
Our arsenic filters use adsorption media that hold onto arsenic as water passes through. For most homes, treating the water you drink and cook with is enough, and NHDES guidance reserves whole-house treatment for very high levels. If you want every tap covered, our whole-house water filtration systems can be built around your results.
What to Expect During Arsenic Water Filter Installation
Here’s how the process typically goes from first call to clean water.
- Test the water: We send a sample to a lab or review recent results you already have.
- Review the results: We compare your numbers to the 5 ppb standard and explain what they mean for your household.
- Choose the treatment: We lay out your options, including where the filter will go and what it will handle.
- Install and retest: We install the equipment and recommend a follow-up test to confirm the arsenic is down.
Filter media wears out over time, so we’ll tell you how often to retest and when to replace it.
When to Consider Arsenic Treatment
Arsenic doesn’t change how water looks or tastes, so the reasons to act come from your situation.
- Your well is drilled into bedrock: That’s where naturally occurring arsenic comes from.
- You’ve never tested for arsenic: A single lab test answers the question.
- A past result at or above 5 ppb: The standard is the line where treatment makes sense.
- You’re buying a home with a private well: Testing before closing avoids surprises.
- Young children or someone with a weakened immune system lives in the home: They tend to be more sensitive to arsenic.
Treatment costs depend on your arsenic level and the rest of your water chemistry, so a test result tells us far more than a guess does.
Why Choose Mainline for Arsenic Removal in Southern NH?
We’re a family-owned company in Londonderry, NH, and water quality is one of our core services. Our team includes licensed NH Master Plumbers and state-approved apprentices, so the same people who read your test results can handle the plumbing work.
Homeowners tell us they appreciate clear communication and straight answers about what their water needs. We offer specials and financing for larger treatment installs.
Proudly Serving Londonderry and the Surrounding Area
We install water treatment for homeowners in Londonderry, Bedford, Windham, Pelham, and nearby communities.
Beyond arsenic treatment, we help local homeowners with:
- Well pump services
- Well pump replacement
- Well pump maintenance and annual tune-ups
- Water heater repair
- Water heater replacement
- Tankless water heater services
- Bacteria and radon removal services
- PFAS water filter systems and PFAS water testing
- Water softener services
- Bottleless water coolers
- Emergency plumbing services
Testing for several contaminants at once saves a trip and gives you the full picture.
Schedule Arsenic Water Filter Installation in Southern NH
If your water has never been tested for arsenic, now is a good time to find out what’s in it. Schedule arsenic water testing online, and we’ll walk you through the results and your treatment options.
Frequently Asked Questions
Yes, but not every filter does. Standard pitcher and refrigerator filters usually aren’t built for it, while adsorption media and reverse osmosis units are. Look for equipment certified for arsenic reduction, and have us match it to your test results.
Cost depends on how much arsenic is in your water, the form it’s in, what other minerals are present, and where the filter is installed. Media also needs replacing over time, so upkeep is part of the picture. We test first and give you options, and financing is available for larger installs.
A lab test is the only way, since arsenic can’t be seen, smelled, or tasted. Test at least once, and test again after well work, a change in your water, or installing treatment to confirm it’s working.
Written By Mainline Plumbing
When something goes wrong with your water, the cause isn’t always obvious. It could be your plumbing, well system or the water itself. Mainline has the experience to look at the whole picture, identify the problem and recommend the right solution.
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