Best Arsenic Filter for Well Water Treatment

Arsenic, a semi-metal element of nature, is present in all areas. May be in groundwater at higher levels than the drinking water standards in many US states.

Because of their bedrocks, Arizona, New Hampshire, and Maine are especially susceptible to high levels of arsenic contamination.

So, you need the best arsenic filter for well water according to your need.

As a private well owner, you are responsible for testing your wells for arsenic.

There are serious health issues, and you may be wondering how to get rid of arsenic in water.

This guide will give you an overview of Private wells – arsenic discusses, How to get rid of arsenic in your water. You can use treatments like reverse osmosis and distillation.

What is arsenic?

Arsenic is a common element in well water, soil, rocks and is used for a variety of purposes in agriculture and industry.

It is impossible to control the amount of arsenic in our environment and groundwater. In some places, it may be present at higher levels than others.

Arsenic is a byproduct of copper mining, smelting, and coal burning and can be combined with other elements to create chemicals that preserve wood or kill insects on cotton and other agricultural crops.

How does arsenic get in drinking well water?

The water supply can be contaminated by arsenic from the source of natural earth deposits or industrial and agricultural pollution.

Arsenic naturally found in rock formations dissolves when groundwater levels drop significantly.

Every year, thousands of pounds of arsenic are released into the environment by American industries. Arsenic can remain in the environment for many years after release.

Rain, snow, and gradual settling remove arsenic from the atmosphere. Arsenic can slowly get into groundwater if it is present on the ground or in surface waters.

Due to arsenic-containing fertilizers or industrial waste, private wells may have high arsenic levels.

It could also be a sign of improper construction or excessive use of herbicides or chemical fertilizers in the past.

Arsenic Exposure in Drinking Water

Because Arsenic is Tasteless and odorless, It can go unnoticed and not be detected Symptoms that affect the human body.

The WHO states that arsenic poisoning is present in our clean water supply, and its consumption or exposure can lead to some health problems, including:

  • Skin lesions, bladder, lung, and lung cancers
  • Diabetes and cardiovascular disease
  • Nausea in the hands and feet; partial paralysis of the hands and feet, and other parts.
  • Cognitive development affects babies and children exposed in the womb
  • Young adults are at greater risk of dying

According to the World Health Organization Long-term, arsenic poisoning can result from long-term arsenic exposure.

Mainly due to contaminated drinking water, eating contaminated food, and eating arsenic-rich food.

  • Nausea & Vomiting
  • Skin discoloration, thickening
  • Diarrhea
  • Stomach pain, blindness

As per a study done by the Natural Resources Defense Council in 2000, “it was probable that as many as 56,000,000 people in 25 States were drinking water with the arsenic level that posed a very high risk of developing cancer.”

The EPA (Environmental Protection Agency) changed the arsenic standards in the 1960s.

However, the contaminant should still be protected – at the least in our drinking waters to avoid any possible consumption.

How to test for arsenic symptoms in private well water?

Arsenic is odorless and has no taste or color. You won’t be able to tell that you have contaminated well water symptoms unless you test well.

It is recommended to test your home’s water for arsenic at least once every three years.

Even though your well may not have legal requirements to meet water quality standards, the testing is for your safety.

1. Private laboratory

A private laboratory, or public health service that is state-certified, can perform an arsenic water test.

A laboratory can give you all the information that you need about your water contaminated with arsenic.

Not only will you find out if your brown well water contains arsenic, but you’ll also learn the truth. How much arsenic is in your water?

2. Kit for Water Testing

You will typically need to take a small amount of water and place a strip of testing material in the water for several seconds.

The strip will turn a specific shade when you take it off to indicate the level of arsenic in your water.

Although test kits can be useful, you will get better results if your drinking water is tested by a laboratory for arsenic.

A household’s arsenic concentration of less than 10 PPB is considered safe enough to drink, cook, or use in other household activities.

What water filter will remove arsenic from well water?

A. Point-of-Use arsenic filter for well water

Point-of-use treatment refers to installing an arsenic water filter at the kitchen sink and other designated faucets. 

It is the best arsenic removal system for contaminants like arsenic and uranium, where ingestion is the primary route of exposure.

We recommend a Point-of-use arsenic water filter if other contaminants are not present. They offer the simplest and most cost-effective way to treat arsenic in drinking water for the long term.

1 Point-of-Use Distillation

Distillation is a better option if you only want to remove arsenic from water for food, drink, and even good for a pet dog.

Electricity is required to run distillers. Plugging a distiller into a power outlet will cause the water to evaporate. The treated water will then pass through a corridor before condensing into a clean carafe.

Most contaminants, such as arsenic V cannot evaporate so they stay in a boiling chamber.

Distillation has one drawback: it takes time, often several hours, to distill water. It is not as instant as other options.

The distillation treatment is affordable to make alkaline water at around $100-$150.

Distillers are very easy to maintain because they require almost no maintenance. However, some distillers use a small carbon filter to remove fluoride and impurities which may remain in the water.

2 Point-of-Use Adsorption Cartridges

You can find commercial Point-of-Use Adsorption Cartridges online by doing a simple internet search. To extend the life of the adsorption cartridge it is recommended to install a pre-oxidation cart if Arsenic III is present.

Adsorption treatment has advantages. It is selective for arsenic based on arsenic’s natural affinity to stick to or adsorb to iron filter media (or any other heavy metal-based media).

The homeowner can decide how often they should change the cartridges. It is done by setting up quarterly testing for at least the first year and following the manufacturer’s maintenance instructions.

The current equipment cost starts at $150, with cartridge replacement costing less than $100.

3 Point-of-Use Reverse Osmosis

The ph of the reverse osmosis water range is between 5-7. RO water treatment gives you the best soft water quality for drinking, coffee, lemonade same quality as bottled water.

The whole house reverses osmosis is the best arsenic removal system and other organic and inorganic substances from drinking water.

This system includes several filters like a reverse-osmosis membrane that can allow you to enjoy clean, arsenic-free ground water throughout your entire home.

RO systems for well water can remove up to 99 percent of arsenic and filter bacteria from your hard water, even though a standard water filter can reduce it.

Point-of-use RO systems typically cost between $150 to $400. Some systems can be more expensive.

They can last up to ten years, but you will need to change the RO membrane and filters frequently for the system to continue its high performance.

Reverse osmosis pros and cons

Pros of RO filters
  • Pure drinking water with proven technology
  • High-quality homes water filtration of non-potable tapwater with e.g. Heavy metals or bacteria
  • Tap water can be made with extremely high mineral contents (TDS 1500 and higher) to make it drinkable.
Cons of RO filtration
  • Wastes 6x more of clean water produced
  • RO arsenic filtration may require professional maintenance To ensure safety and effectiveness
  • Removing healthy minerals like calcium, magnesium, and potassium
  • Starts at $300+ Maintenance and replacements
  • Water contamination could lead to the growth of bacteria. After the filter has been cleaned the chlorine will be removed

4 Activated Alumina 

An activated Alumina filtration system uses an alumina medium that absorbs common well water contaminants.

Use this house water filter for removing arsenic in well water. To do so, you will need chlorine bleach or hydrogen peroxide.

Alumina water filtration is a method that can remove high levels of arsenic from your home and provide clean, easily available drinking water.

For the water system to work effectively, it will need to have a pH of 7 or higher. Most systems can produce 10 gallons per minute.

Activated alumina systems can also remove iron. They are typically between $40 and $70, not including the cost of changing the filter media.

B. Whole House (or Point of Entry) arsenic water filter for well water

Whole-house or point-of-entry system refers to the total water treatment of the entire home with a high water flow rate.

If your water contains contaminants such as iron, manganese, hardness, or other volatile organic compounds (VOCs), this is important.

Whole-house arsenic treatment is not needed if levels exceed 250 ppb (0.25mg/L). This is because there is no skin absorption and accidental ingestion of these levels is not a concern.

1 Oxidation-Filtration, Iron-Arsenic

When iron concentrations exceed 0.1 mg/L, iron-arsenic oxygenation is followed by particle filtration.

It is the most cost-effective whole house arsenic filter for well water, which reduces various contaminants throughout the house.

Frequently used are Manganese dioxide-based filter media like Birm, Greensand, and Filox.

This medium simultaneously oxidizes iron as well as arsenic, so it naturally addresses both Arsenic III and Arsenic V.

The optimal ratio is 20 parts iron to one part arsenic. For example, 0.4 mg/L iron and 20 ppb iron. pH 7 to 7.

The cost of removing arsenic can be found in the same range as other whole-house technologies, at $1,500 to $2,000.

Permanganate chlorine pre-oxidant would cost about $100 annually in maintenance costs if needed.

2 Adsorptive Media

This whole-home well water filter system is perfect for arsenic removal from your drinking water.

Nationally, at least seven adsorptive media that are commercially available are being actively promoted for arsenic elimination from drinking water.

The majority of these media are iron-based oxides, but there are also titanium- and zirconium-based media.

This technology has many advantages, including its simplicity and gradual arsenic contamination breakthrough. It also allows for longer intervals between water softener replacements.

Adsorptive media have a limited capacity. It is especially true if pH is higher than 7.5 or Arsenic-III is present.

The cost of installing a single or dual house water filter is $1,500 to $2,000 and is similar to any other whole-house treatment.

Annual replacement costs depend on the soft water quality and can easily be budgeted at $500-$750 per year.

3 Ion Exchange 

It is the best water filter system for arsenic in well water, treated with an ion resin. Water softener anion resin traps arsenic particles and stops them from entering your home.

This water treatment replaces arsenic with low levels of nontoxic impurities like sodium (salt).

The water filtration system flushes the resin bed once it is full. It also removes arsenic particles from the resin bed in a process known as regeneration.

Depending on the complexity water system, Ion exchange systems can cost between $300 and $1,200.

The arsenic filtration may require salt replacement after every three months. It is why you should plan for additional maintenance costs before investing in well water treatment. 

After approximately 6 to 8 years, the ion exchange media will need to replenish.

A quick, inexpensive easy way to filter arsenic from water

Bin Gao and his team used an iron-enhanced Carbon filter made with hickory Chips (called “biochar”) to eliminate the toxins.

He is an associate professor at the Institute of Food and Agricultural Sciences in agricultural and biological engineering.

Gao stated that biochar can be made from various types of waste biomass, including agricultural residues. This new technology is an alternative and more cost-effective method to remove arsenic.

Gao and his colleagues describe the process in a paper to appear in the January issue of Water Research.

The iron-enhanced biochar effectively eliminated the arsenic from the hard water, while plain biochar did not show any effect.

You can use several methods to remove arsenic from water. These include adding lime or other coagulants to the water, using membranes to filter out arsenic, and using an ion-exchange method. 

A water softener filter is the best method to remove arsenic because it is easy to use, and cost-effective with a high treated water flow rate.

Gao stated that a large biochar filter could be used by water treatment plants to remove arsenic. A small filter could be attached to the tap of homeowners.

He said that further research is needed to optimize the process as well as to create commercially available filters. The National Science Foundation partially supported Gao’s research.


What level of arsenic is considered safe in my drinking water?    

The US EPA (Environmental Protection Agency) has established the arsenic standard as 10ppb (parts per billion or micrograms per Liter) to safeguard consumers from the long-term effects of exposure to arsenic.

Ten ppb roughly corresponds to 5 teaspoons of ink within the Olympic size pool.

You can effectively remove it with a reverse osmosis filter.

How often do I need to check my drinking water?  

The Arizona Department of Health Services recommends that all well owners use a state-certified lab to test the well water every year for nitrates and bacteria. And minimum every three years for arsenic or lead.

What is my arsenic testing results mean?  

When you have a good idea of the level of arsenic, respond as follows:-

If the water arsenic level is lower than ten ppb, this is good water for cooking, drinking, and other uses.

If the amount of arsenic ranges from 10 to 200 ppb, it’s not a crisis, but you must make plans to source water for cooking and drinking or install a home water treatment system.

It has excellent performance with low or high water pressure and gives perfect water quality, the same as bottled water.

Well water with arsenic levels less than 100 ppb is thought to be safe for irrigation of water plants, such as vegetables and gardens (Ayers and Westcot 1985).

If the arsenic content in your well water is more significant than 200 ppb, avoid this water from cooking, drinking, or irrigation.

If the arsenic concentration is lower than 500 ppb, you can use the water for washing and bathing.

Can you have to shower in water containing arsenic?

Arsenic cannot quickly get into your body via the skin. Swimming, bathing, or showering in water contaminated with levels up to 500 ppb is safe as long as you don’t swallow the water.


Now you can choose the best arsenic filter for well water that removes other toxic chemicals and heavy metals from your water.

Because arsenic has no odor and tastes, it can go unnoticed and cause terrible symptoms in the body.

For more information about the water filtration system, please let me know.

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