
Core Kits
Test Kits for Rainwater
If you get your drinking water from a rainwater harvesting system, these are the test kits for you. Test for common contaminants that can affect your pumps, tanks, and most importantly, your health. Our award-winning mail-to-lab kits are always tested in independent and certified laboratories.
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Core Kit
Essential Rainwater Test
53 Analytes TestedBaseline water quality test for rainwater safety in a catchment or other harvesting system.
Regular price $199.00Regular priceUnit price / per5 Days in Lab -
Core Kit
Advanced Rainwater Test
113 Analytes TestedIdeal water quality test to ensure correct setup of rainwater catchment system, and for those noticing unpleasant tastes or smells in rainwater.
Regular price $299.00Regular priceUnit price / per5 Days in LabMOST POPULAR
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Specialized
Most Comprehensive Water Test
359 Analytes TestedTest your drinking water with the most comprehensive single test package offered by Tap Score–from PFAS to pesticides to radiation to metals.
Regular price $2,575.00Regular priceUnit price / per12 Days in Lab
Rainwater Customers Also Bought
Ammonia Water Test
Test your drinking water for ammonia–a popular chloramine precursor used in water treatment plants.
SVOC Water Test
Test for a broad array of chemicals used in plastics, pesticides, flame-retardants, and more.
Total Microbiology Water Test
Test for and identify an extensive array of microbial concerns–including bacteria, protozoa, HPC, and algae–with this comprehensive pathogen screen.
5-Genus ID Water Test
Test your drinking water to identify the 5 most prevalent bacterial genera present.
Ammonia Water Test
Test your drinking water for ammonia–a popular chloramine precursor used in water treatment plants.
SVOC Water Test
Test for a broad array of chemicals used in plastics, pesticides, flame-retardants, and more.
Total Microbiology Water Test
Test for and identify an extensive array of microbial concerns–including bacteria, protozoa, HPC, and algae–with this comprehensive pathogen screen.
5-Genus ID Water Test
Test your drinking water to identify the 5 most prevalent bacterial genera present.
Ammonia Water Test
Test your drinking water for ammonia–a popular chloramine precursor used in water treatment plants.
SVOC Water Test
Test for a broad array of chemicals used in plastics, pesticides, flame-retardants, and more.
Total Microbiology Water Test
Test for and identify an extensive array of microbial concerns–including bacteria, protozoa, HPC, and algae–with this comprehensive pathogen screen.
Specialized Testing
Should I test for PFAS?
Our Core Kits focus first on the most well-established and high-priority contaminants—those backed by decades of research. That’s why we recommend starting with a Core Kit before testing specifically for PFAS. For a more complete picture of your water quality, you can also combine a Core Kit with a PFAS test.
EPA 8327 PFAS Screen Water Test
Test your drinking water for 24 PFAS and related compounds with this broad screen.
PFAS Water Test
Test your drinking water by EPA 537.1 for PFOS, PFOA, and other PFAS compounds.
MOST POPULAR
GenX and PFAS Water Test
Test your drinking water by EPA 533 with our most recommended PFAS test kit that analyzes for 25 compounds including GenX, PFOA, and PFOS.
RECOMMENDED FOR PFAS
EPA 1633 PFAS Water Test
Test your drinking water for 40x PFAS compounds by the most current and comprehensive method available.
Most Comprehensive Water Test
Test your drinking water with the most comprehensive single test package offered by Tap Score–from PFAS to pesticides to radiation to metals.
EPA 8327 PFAS Screen Water Test
Test your drinking water for 24 PFAS and related compounds with this broad screen.
PFAS Water Test
Test your drinking water by EPA 537.1 for PFOS, PFOA, and other PFAS compounds.
MOST POPULAR
GenX and PFAS Water Test
Test your drinking water by EPA 533 with our most recommended PFAS test kit that analyzes for 25 compounds including GenX, PFOA, and PFOS.
RECOMMENDED FOR PFAS
EPA 1633 PFAS Water Test
Test your drinking water for 40x PFAS compounds by the most current and comprehensive method available.
Most Comprehensive Water Test
Test your drinking water with the most comprehensive single test package offered by Tap Score–from PFAS to pesticides to radiation to metals.
EPA 8327 PFAS Screen Water Test
Test your drinking water for 24 PFAS and related compounds with this broad screen.

Most Comprehensive Water Test
For Those Who Want to Test it All—And Then Some
Looking for the most exhaustive test panel available? This is the kit for you—no other test screens for more. While our core kits cover what most households need, this kit is for those who want to leave no stone unturned in their water analysis.
Not sure where to begin? Let us help.
We know this stuff feels complicated, but we are dedicated to keeping it simple. Answers to all your questions are always a chat away.
Which Core Kit do I need?
Which kit you choose depends on how many contaminants you'd like to test. Consult any Core Kit product page for a side-by-side comparison or try our Customize My Kit feature to match your needs with the perfect option.
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 does 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.