Water Test Kit

Trusted & Recommended by Inspectors, Property Managers, Building Owners, Homeowners, Real Estate & Environmental Professionals Nationwide

Where does Legionella come from?

Legionella is a type of bacteria that is found naturally in fresh water environments, such as lakes and rivers. The bacteria can also grow in man-made water systems, such as cooling towers, hot tubs, and plumbing systems. When these systems are not properly maintained, the bacteria can multiply and cause an outbreak of Legionnaires’ disease.

How does Legionella affect you?

Legionella is a type of bacteria that can cause a serious lung infection called Legionnaires’ disease. The bacteria are found naturally in fresh water, but they can also grow in man-made water systems, such as cooling towers, hot tubs, and potable water systems.

People can become infected with Legionella when they breathe in small droplets of water that contain the bacteria.

In most cases, Legionella infections are mild and cause only fever, chills, and muscle aches. However, some people develop a severe form of the disease, which can lead to pneumonia and even death. Legionnaires’ disease is treated with antibiotics, but it is important to prevent exposure to the bacteria in the first place.

How It Works

1. Collect Your Sample

We will send you everything you need to test your drinking water.

2. Ship to Our Lab

You will send your sample back to us for rigorous, certified, independent testing.

3. Get Your Reports

After we analyze your sample, we will send you a full report on the lab results.

Certified by:

Legionella Water Test Kit

Test Your Water Today!

What Our Lab Scientists say:

Legionella is a bacteria that thrives in warm water, and can cause a serious but preventable lung infection known as Legionnaires’ disease. The disease is typically spread through inhalation of water droplets, and can cause pneumonia-like symptoms including coughing, chest pain, and shortness of breath. While Legionella is found naturally in freshwater environments, it can also grow in man-made water systems such as cooling towers, hot tubs, and plumbing systems. People with weakened immune systems are at highest risk for developing Legionnaires’ disease, but the infection can be deadly for anyone. Prevention and early diagnosis and treatment is critical for recovery, so it is important to be aware of the signs and symptoms of the disease.

This is the right test if you:

  • If you have any reason to believe that you may have been exposed to legionella
  • If you are experiencing any symptoms of Legionnaires’ disease
  • If you have any concerns about the possibility of legionella contamination in your water

A legionella test kit can give you peace of mind by identifying any potentially hazardous bacteria in your water. Ordering a kit is easy and convenient, and you can perform the sampling yourself in just a few minutes.

What's Inside
Your Legionella Testing Kit?

Easy to Use

We provide step by step instructions on how to prepare your water source, collect your water sample, and prepare your sample for return shipment to our labs.

The kit includes everything necessary to collect a water sample.

Return Shipping Labels Available for Purchase

Our kits come with everything you need, and return shipping labels are also available for purchase. Once you’ve received your label, simply attach it to the outside of your package and drop it in the mail.

Simple and Affordable Testing

There is a small fee for testing when you return the sample.

Accurate and Reliable Results

Results show detailed information about the presence of Legionella bacteria in your water supply, including an analysis by ISO 11731 standards that are specific enough to identify each species present at maximum likelihood using conventional techniques like overnight culture plate counts or selective Medium adventurous forests (MFT).

Why Choose The Legionella Testing
Laboratories Test Kit by EMSL Analytical?


EMSL’s is the Nation's Leading Legionella Testing Laboratory. We provide all of your needs for testing with an emphasis on potable water, cooling towers and buildings, from a single sample to thousands in volume, our labs can meet your turnarounds.

When you want to be sure that your water sources are safe for others, turn to EMSL Analytical Inc., for expert Legionella Testing.


EMSL’s Legionella Testing Laboratories provide High Quality Laboratory Results for your Legionella Project.

With CDC Elite and ISO 17025 compliant lab in both the US and Canada, you can rest assured that not only will our Legionella testing labs yield high-quality results but also they'll be accurate enough to meet government requirements.

Your water
analysis awaits.

The Legionella Testing Laboratories Test Kit by EMSL Analytical, provides all required materials to properly collect and submit a sample for certified laboratory testing. Results show detailed information about the presence of Legionella bacteria in your water supply, including an analysis by our CDC Elite Certified Legionella Testing Lab.

EMSL Analytical Customer Compliments

  • "I'm so glad I found Legionella Testing Laboratories by EMSL Analytical. They have been a great partner in helping us ensure the safety of our water systems. Their customer service is top-notch and their turn-around time is amazing. I would highly recommend them to anyone in need of legionella testing."

    David E. Grohl

    Facilities Manager

  • "We've been using Legionella Testing Laboratories by EMSL Analytical for all of our water testing needs for years and have always been happy with their service. They're always quick to respond to our requests and their turn-around time is incredible. I would recommend them to anyone in need of a reliable, professional testing laboratory."

    James Addition

    Environmental Health and Safety Manager

You've got questions,
we have answers.

We are here to help you! Our knowledgeable staff is ready and waiting with answers to your most pressing questions. Just let us know what you need so we can make things simple for everyone involved. 

Answers to all your questions are always a quick click or call away.

Legionella testing is a process of taking water samples from a potential source of contamination and testing them for the presence of Legionella bacteria. This bacteria can cause Legionnaires’ disease, a serious and potentially fatal respiratory infection. Testing is important because it can help identify sources of contamination so that they can be remediated to prevent illness.

The most common sources of Legionella contamination are water systems, such as cooling towers and potable water systems. These systems can become contaminated if they are not properly maintained and allowed to stagnate.

The only way to know for sure if your water system is contaminated with Legionella is to have it tested by a qualified laboratory, such as EMSL Analytical. Our legionella testing labs can provide you with the testing you need to ensure the safety of your water system.

Legionella Water Test Kits Order Form

    *Lab Fees Required for Testing