Better Data. Better Decisions.
Find out what's really in your water, backed by certified laboratories and explained in plain language you don't need a chemistry degree to follow.
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Not Just Any Lab
We route your sample through our network of 250+ independent labs nationwide, so it goes to the one best suited to test it. Closer labs mean less time in transit and faster results. -
Held to a Higher Standard
Behind every Tap Score result is a lab accredited to ISO 17025, the international standard for laboratory testing quality. It ensures a lab is consistent, capable, and independently vetted.
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Lab-Grade Kits, Right to Your Door
Accuracy doesn't start at the lab, it starts at your sink. Each kit includes all the instructions and materials needed for your test, from specialized vials to preservatives.
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Backed by Real Scientists
Results aren't simply auto-generated and sent. Every report runs through quality checks built and overseen by our science team. If something needs a closer look, real experts are here to dig in.
Accredited Across North America
With 250+ certified labs in all 50 states, Canada, and Puerto Rico, we can match your sample to a facility built to test it, no matter where home is. More coverage means more specialization, higher standards, and faster results.
Your Water, Scored 1 to 99
We built the Tap Score algorithm to do the heavy lifting, turning your lab results into a single score from 1 to 99. No subjectivity, no sales angle, just a straight answer on where your water stands and what to do about it. Every Tap Score checks for:
- Health and safety
- Water aesthetics
- Plumbing impact
- Unbiased treatment recommendations
Meet the Experts
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Jessica Goddard, PhD
Chief Science Officer
Jess leads the scientific program at Tap Score and oversees all analytical products and services. She holds a PhD in water resources and a masters in environmental engineering from UC Berkeley.
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Sam Bear
Senior Research Scientist
Sam oversees Tap Score research, laboratory methods and quality control. She holds a masters in environmental engineering from UC Berkeley and a B.S.E. in chemistry and environmental engineering from Duke University.
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Carsten Prasse, PhD
Scientific Advisor
Carsten is a professor of Environmental Health and Engineering at Johns Hopkins University. His lab uses analytical chemistry, toxicology, and engineering to study health risks of contaminants in the environment.
Got a Question? We've Got Answers.
Water testing comes with a lot of questions, and we love answering them. Reach out anytime by chat, phone, or email, and a real expert will help you figure it out.
Are your labs EPA certified?
The EPA validates certain analytical methods but gives facility certification powers to outside agencies, which have certified ALL Tap Score labs with various accreditations ranging from ISO, to NELAC, to State, to DoD (among others).
How accurate are my results?
Instrumentation is extremely accurate when reporting concentration data and any variability in sample testing results comes from changes in the sample itself.
Which lab will my sample go to?
Depending on your location and the testing kit you select, your samples will be shipped to the laboratory that best meets your needs for turnaround time, instrumentation, and testing methods.
How complex is the report?
Your report, which includes your personalized tap score and contaminant breakdown, is designed to be comprehensive but simple, actionable and easy to read. And should you have questions, you know where to find us.