PFAS Well Water Test Kit: How to Test Your Well Water at Home

PFAS are called “forever chemicals” because they resist breakdown in both the environment and the human body. If your household relies on a private well, you are responsible for your own water quality testing. Well water is not covered by the EPA’s new federal PFAS drinking water standards, so a home test kit is the fastest way to find out whether your well is affected.

For more on PFAS-free living, see our guide to PFAS free deodorant and PFAS free toothbrushes.

Why testing well water for PFAS matters

PFAS compounds have been linked to hormone disruption, elevated cholesterol, weakened immune response, and increased cancer risk at certain exposure levels. Research published by environmental health scientists has found detectable PFAS in blood samples of people with common household exposures. Because these chemicals don’t break down, every unnecessary source of exposure counts, especially for kids and pregnant women.

Private wells near agricultural land, military bases, airports, landfills, or industrial sites face a higher risk of PFAS contamination. Unlike municipal water systems, wells have no regulatory testing requirement for PFAS. That means it is entirely on you to find out what is in your water.

How PFAS home test kits work

Most PFAS well water test kits follow the same basic process: collect a water sample from your tap, seal it in the provided container, and mail it to a certified lab. Results typically arrive within one to two weeks. Here is what to look for when picking a kit:

• Lab certification: Choose a kit that uses an EPA-certified or state-accredited lab running EPA Method 533 or 537.1. Those are the standard analytical methods for PFAS in drinking water.
• Number of compounds tested: Some kits test for only a handful of PFAS. Better ones screen for 30 or more individual compounds, including PFOA, PFOS, GenX, and PFBS.
• Detection limits: Look for kits that report results at parts-per-trillion (ppt) levels, which matches the EPA’s health-based limits of 4 ppt for PFOA and PFOS.
• Cost: Expect to pay between $150 and $400 depending on how many PFAS compounds the panel covers.

SimpleLab (Tap Score) and Cyclopure are two well-regarded testing services. Some state health departments also offer subsidized testing for well owners; check with yours.

What to do if your test comes back positive

If your results show detectable PFAS, a certified water filter is the most practical next step. The Clearly Filtered Water Filter Pitcher targets up to 386+ contaminants including PFAS, lead, and fluoride. It is NSF certified and a straightforward option if you want to start filtering right away.

For whole-house protection, a reverse osmosis system is the most effective household method for PFAS removal.

Other ways to reduce PFAS exposure

Beyond filtering your water, a few habits help lower your overall PFAS load:

• Test annually if you are on a private well, especially near known contamination sources
• Ventilate your home since PFAS can settle into household dust, which is a real exposure route for young kids who spend time on the floor
• Use glass or stainless steel for anything that touches food or skin
• Re-test after installing a filter to confirm it is actually working

For a broader look at reducing PFAS in your home, check out our guide to top PFAS free water filters and the PFAS Free Life Database.

Frequently asked questions

How accurate are PFAS home water test kits?

Kits that use EPA-certified labs (Method 533 or 537.1) are quite accurate, detecting PFAS down to parts-per-trillion levels. The important thing is to choose a kit that sends your sample to an accredited lab. There are no reliable instant at-home PFAS strips on the market. SimpleLab and Cyclopure are two solid options.

How often should I test my well water for PFAS?

At least once to establish a baseline. If you live near a military base, airport, industrial site, or landfill, test annually. And if your first test shows any detectable PFAS, re-test after installing a filter to make sure it is doing its job.

What should I do if PFAS are found in my well water?

Install a certified water filter for your drinking and cooking water. Reverse osmosis and activated carbon block filters rated for PFAS removal are the two best options. Contact your state health department too, since they may have remediation resources or guidance specific to your area. You can also search the PFAS Free Life Database at database.pfasfreelife.com for verified clean water filters and other products.