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Get independent laboratory water testing for hundreds of contaminants from the comfort of home.


Chemicals migrate into water from old pipes, industry, agriculture, and other sources. Many have no taste, color, or smell. Authorities test at some facilities but they don’t know what’s coming out of your tap.
Tap Score is the only home water testing service with unbiased treatment matching and health risk analysis – so you don’t waste money on treatment that doesn’t do what you need and we for most customers, we recommend the Essential Test.

Perfect for customers who are on well water who have greatly varying filtration needs.




Award Winning Water Science

SimpleLab (formerly SimpleWater, Inc.), the company behind Tap Score, has been cited by leading industry publications and awarded research grants by the EPA. They applied this expertise to create a next-generation home water testing service that goes beyond what regular laboratories or testing kits can provide.

Tap Score is the only home water testing service to apply toxicological and epidemiological research to your water’s contaminant profile in order to give you a full picture of how your drinking water affects your health.

Featured In

Even small improvements to drinking water quality bestow meaningful health benefits to your mind and body over time. Making easy, smart changes to every day water quality consists of testing for and removing harmful chronic contaminants, many of which have no color, smell, or taste.

As a growing team of civic-minded engineers, lab scientists and health experts, we share a vision to improve the way you test, treat, and monitor your drinking water and local environmental health.

Testing in a Certified Laboratory
Cutting Edge Analysis and Health Reporting

Professional Laboratory Testing

SimpleLab is committed to offering families, individuals, and small business customers the most useful, efficient and affordable water testing services available in the USA.

Traditional environmental testing laboratories make most of their money from large, recurring clients like the government. When your top customers buy water tests in the thousands, the individual buyer doesn’t get the attention they deserve. We are here to provide innovation and customer service to the the world of water testing, where it has long been missing.

SimpleLab has partnerships with some of the top environmental testing laboratories in the Nation, allowing us to improve the testing and reporting experience for all customers. We enable the lab technicians to focus on what they do best, testing water. Meanwhile, we deliver on the promise of great customer service, expert treatment advice and timely support. Tap Score testing is performed with EPA, ASTM, and other common industry testing methods. We also offer state regulatory compliant testing, just ask!


With Research Support From


Health Analysis

In partnership with The University of California in Berkeley and the Boston University School of Public Health, SimpleLab developed cutting edge water health analysis that is applied to every Tap Score Report.

Small amounts of harmful contaminants, many of which do not smell, look, or taste like anything at all, cause serious physical and mental health effects as they build up in your body. The key to protecting yourself and your family is having reliable and convenient access to high quality testing, health analysis and personalized treatment matching.

Personalized Treatment Matching

treatment matching for nsf and wqa certified products

We do not sell our own treatment technology.

We do not partner with any water treatment companies.

When you become a Tap Score customer and discover something you don’t want in your water, we provide you with unbiased treatment recommendations based on the specific contaminants found in your sample, your home preferences, budget and our ongoing research into customer satisfaction with different treatment solutions.

Beware “free water tests” sold by companies that also sell treatment products. We’ve tested these ourselves and they are, as you might expect, merely a vehicle for selling you expensive treatment you might not need.

The treatment products we recommend come from several high quality brands that are certified by NSF International and the Water Quality Association

“We’ve tested our water every year for 20 years, and the Tap Score was the first test I can honestly say I fully understood.”

– Claire H. in Connecticut

“My local utility had an incident that exposed our city to dangerous amounts of Trihalomethanes in our tap water. I bought Tap Score to make sure my new treatment system is doing its job.”

– Paulette L. in San Juan

For Private and Shared Wells

The only way to know what’s in your well is to perform a complete screen. Some potent carcinogens, like arsenic, have no taste or color.

For Water Utility Customers

Water from a utility can spend 3-7 days traveling through old pipes before reaching your home, where plumbing and fixtures can also influence water quality.