GenX and PFAS Water Test
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Our recommended test for PFAS (aka 'forever chemicals') in drinking water. This kit provides specialized advanced lab analysis for 25 PFAS compounds, including GenX, PFOA, and PFOS.
- Certified testing method: EPA 533
- Fast turnaround at lab (12 business days)
- Free shipping, both ways
- Unbiased treatment advice
We reserve the right to change testing methodology in our continuing effort to provide the best service to our clients.

About the GenX and PFAS Water Test:
This is the right test for you if:
- Live near a military base or other location with heavy use of firefighting foam.
- Concerned about nearby industrial contamination or chemical spills.
- Served by a water utility with known contamination issues.
1. Sample
You'll get everything you need to collect your drinking water sample, including easy-to-follow instructions.
2. Ship
Shipping is free, so getting your sample to the lab won't cost you a thing.
3. Test
We route your sample to an independent, certified lab in our network that's best equipped to analyze your water.
4. Report
In 5 to 7 business days, you'll get an interactive digital report that breaks down your water quality, with clear tips on what to do next.
The GenX and PFAS Water Test kit includes analysis for 25 analytes:
PFAS: 25
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid / 4,8-dioxa-3H-perfluorononanoic acid / 4:2 Fluorotelomer sulfonic acid / 6:2 Fluorotelomer sulfonic acid / 8:2 Fluorotelomer sulfonic acid / 9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid / GenX / Perfluoro(2-ethoxyethane)sulfonic acid / Perfluoro-3,6-dioxaheptanoic acid / Perfluoro-4-oxapentanoic acid / Perfluoro-5-oxahexanoic acid / Perfluorobutanesulfonic acid / Perfluorobutanoic acid / Perfluorodecanoic acid / Perfluorododecanoic acid / Perfluoroheptanesulfonic acid / Perfluoroheptanoic acid / Perfluorohexanesulfonic acid / Perfluorohexanoic acid / Perfluorononanoic acid / Perfluorooctanesulfonic acid / Perfluorooctanoic acid / Perfluoropentanesulfonic acid / Perfluoropentanoic acid / Perfluoroundecanoic acid
Choose your preferred shipping method at checkout:
1. Standard (Both Ways)
- Orders shipped to you via FedEx.
- Typically shipped within 12-36 hours of placing your order.
- Arrives within 2-3 business days of shipment.
- Includes 2-day shipping to the lab via FedEx.
2. Standard to You | Overnight To Lab
- Orders shipped to you via FedEx.
- Typically shipped within 12-36 hours of placing your order.
- Arrives within 2-3 business days of shipment.
- Includes overnight shipping to the lab via FedEx.
3. Overnight (Both Ways)
- Orders shipped to you via overnight FedEx.
- Typically shipped same day as order placed.
- Arrives within 1 business day of shipment.
- Includes overnight shipping to the lab via FedEx.
4. Urgent Orders
- Questions about shipping? Contact our support team.

Independent, Accurate & Actionable Test Reports.
After our labs evaluate your water, we generate your Tap Score™ using an algorithm that removes subjectivity and supports unbiased solutions.
- Contaminant Breakdown
- Health Risks & Considerations
- Impact on Home & Plumbing
- Treatment Recommendations

Certified, Regional Lab Testing.
With over 250 world-class testing facilities in our network, we can test your water with greater specialization, faster speeds and higher standards.

Customer service meets science.
Our Support Team includes water quality engineers, scientists, and toxicology experts who help make sense of your results.
- Insight into health, aesthetic & plumbing risks
- Recommendations based on your data
- Available by live chat, phone, or email
Go ahead. Ask us anything
We know this stuff feels complicated, but we are dedicated to keeping it simple. Answers to all your questions are always a chat or FAQ away.
Which test is right for me?
When in doubt, start with a Core Kit to analyze multiple contaminants with a single test. If you have more specific motivations for testing, try our Customize My Kit feature to match your needs to the right test(s).
What's the turnaround time?
Most people receive results within 3-5 business days after the lab receives their sample. However, some tests may require additional analytical time so be sure to check each kit’s product page for the most accurate estimate.
What will my report include?
Your report will rank your water against local and federal safety benchmarks, provide a thorough breakdown of any contaminants detected and how they may be affecting your health or plumbing, and provide non-biased treatment recommendations.
Are Tap Score labs certified?
Every lab facility in our network is certified with accreditations ranging from ISO to NELAC/ELAP, Direct State, DoD, DoE, DoH and beyond. Need a specific certification? Let us know so that we can meet your needs accordingly.
