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How To Remove Lead From Water (Step-by-Step) 

Scott Winfield
Last Updated on
by Scott Winfield

Clean water is one of our most basic needs. However, more often than not, our water has many contaminants, including heavy metals such as lead. Unfortunately, lead poisoning via drinking water is a common problem that has severe consequences for your health.

So, how is lead removed from water? The easiest and most effective way to remove lead from drinking water is through either reverse osmosis filtration or water distillation.

To remove lead via reverse osmosis, get an RO filter with NSF certification for lead removal. We like the Waterdrop G3 800 filter for this purpose, although the Aquatru filter is more portable and equally efficient at removing lead.

For high levels of lead contamination, the Springwell Whole House Lead filter system does a good job of removing lead on a large scale.

Here’s a step-by-step guide to help you identify and remove the source of lead in your water:

  1. Identify the source of lead
  2. Test lead levels in your water
  3. Choose appropriate lead treatment method
  4. Re-test your water for lead

Step 1: Identify the Source of Lead in Your Water

There are a few ways that lead can enter your water. The culprit might be corroded pipes or municipal water supply contamination like in the Flint water crisis of 2014

Lead in Drinking Water
Lead in Drinking Water

If the main water supply connects to your house through lead pipes, it might cause high levels of lead to leach into your drinking water. In this case, the best option is to replace your lead pipes.

Lead could also be leaching from the solder used to join copper pipes. If this is the case, a professional plumber can identify and replace the affected pipes.

If neither the pipes nor the solders are the source of lead in your water, then your municipal water supply source is the likely culprit.

Step 2: Test Lead Levels in Water

Once you’ve identified the source, the next step is to run a test to examine the levels of lead contamination in your water. You can buy a do-it-yourself water test kit or hire a professional to test your water.

Test Lead Levels in Water
Test Lead Levels in Water

You should also check annual EPA reports that concern your public water system to know if the lead is coming from the fixtures in your house or the main water lines.

If the results show hazardous levels of lead in your water, you can then proceed with one or more of the treatment solutions recommended in below.

Step 3: Choose Treatment Method To Remove Lead From Water

Now that you’ve confirmed the level of lead in your water, it’s time to choose a treatment method. Depending on the levels of contamination and your personal preferences, you have 4 different options:

Option 1: Use a water filter to remove lead

Water filter is an excellent option if you want an easy, affordable way to remove lead from your water. There are many effective types of filters on the market, so be sure to choose one specifically designed to remove lead.

A portable faucet water filter
A portable faucet water filter

Option 2: Remove lead with Reverse Osmosis

Reverse osmosis: Reverse osmosis (RO) is a more expensive option, but it’s effective at removing lead and other contaminants from water. A reverse osmosis system consists of a combination of filters, and it can fit under the sink or the kitchen’s countertop. We recommend Waterdrop G3 P800 (undersink) and AquaTru (countertop).

Option 3: Remove lead with Distillation

Distillation is a process that involves collecting the condensed steam from boiling water. This method is efficient at removing lead and other contaminants from water. Unfortunately, distillation is also expensive.

Option 4: Replace Lead Pipes

If corroded lead pipes are the culprit, you’ll have to completely replace them. Unfortunately this method is also expensive, but there’s simply no workaround. Overhauling your plumbing system is a significant renovation project, so it’s best to consult with a professional before proceeding.

Step 4: After Treatment, Check If the Water Is Free From Lead

After treating your water, you should check that your preferred lead removal method actually solved the problem. We recommend you conduct another lead water test (see step #2 for guidance) to be sure the lead in your water is gone.

Frequently Asked Questions

How does lead get in water?

The most typical lead sources in drinking water are pipes, faucets, and other plumbing fixtures containing lead. Excess amounts of lead are more common in homes built before 1986 since the piping in those buildings are mostly lead or prone to rust.

However, new homes are at risk as well since service pipes that connect your house to the main water supply may contain lead even if the fixtures in the house don’t. In the past, builders often used lead in these pipes and the interior plumbing of homes and buildings.

Workers sometimes solder plumbing fixtures made of brass, galvanized iron, and other materials with lead. Some water tanks might be lined with lead as well, presenting a source for contamination.

Corrosion and rust in tanks and groundwater wells are additional potential lead contamination sources. High acidity and lower mineral content water will have the highest corrosion rates. Moreover, humidity, the water temperature, the age of the pipes, the length of time the water stays in the pipes, and the use of the protective coating might also cause corrosion in the long run.

No matter the source though, the solutions we listed in the third step above will help you efficiently deal with the issue.

What are the most common signs of lead in water?

Since you cannot taste, see, or smell it, it’s difficult to tell whether there’s lead in the water. The only way to know is to do a water test.

What are the health effects of drinking lead-contaminated water?

Lead is a health hazard if ingested, and exposure to high levels of it can cause serious health problems like brain damage, kidney damage, high blood pressure, and anemia. It can also cause infertility. Children and pregnant women are particularly vulnerable to the effects of lead.

After ingestion, it’s stored in the bones, blood, and tissue. As humans age, lead stored in the bones will be released into the blood, putting older individuals, especially women, at greater risk.

The most common symptoms of lead exposure are as follows:

Stomach problems and abdominal pain
Constipation
Pain/tingling in the hands and feet
Memory loss
Nervous system damage
Learning difficulties
Behavioral problems
Kidney damage
High blood pressure
Anemia
Lethargy
Headache
Weakness

What are the acceptable levels of lead in water?

The United States Environmental Protection Agency (EPA) set the maximum contaminant level goal for lead in drinking water at 0.015 mg/L.

This lead level is a result of the Safe Drinking Water Act (SDWA). Due to this legislation, the EPA set National Primary Drinking Water Regulations (NPDWRs or primary standards) for contaminants that may cause adverse human health effects.

Fortunately, the government can enforce these standards since they apply to public water systems.

How much does it cost to remove lead from water?


Reverse osmosis systems for lead costs around $200 – $1000.

Distillation systems costs around $200 – $500.

Changing the pipes can cost from $1,200 to $12,000.

What is the cheapest way to remove lead from water?

The cheapest way to remove lead from water is with a portable water filter like faucet filters. You can buy them for as little as $30. However, they may not be as effective as using an RO system of changing your lead corroded pipes.

Conclusion

Lead contamination is a serious hazard that shouldn’t be overlooked. You needn’t worry though, as there’s an ample number of solutions that can help you deal with it.

Having a whole house filtration system, an RO system, or a distillation mechanism will reduce the levels of lead in the water. In addition, you should have your water regularly tested by professionals.

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Scott Winfield
Scott Winfield
My name is Scott Winfield and researching and writing about water filters and other strategies to purify water has become my full time passion in recent years. I'm glad that you found our site and you can look forward to authoritative and well researched content here to help you get the best in water.
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