Residential Water Map Project
Most homes have never had their water independently lab tested. We'll analyze yours — for no fee.
8-Marker Lab Analysis
Tap water can have 100+ contaminants
Trichloroethane, Dichloroethane, 1,1-Dichloroethylene, Butadiene , 1-butanol , 17-beta-Estradiol ,2,4-D, 2-methoxyethanol, 2-propen-1-ol, 4-Androstene-3,17-dione, Alpha-hexachlorocyclohexane, Antimony, Arsenic, Barium, Benzene, Benzo[a]pyrene , Beryllium, Bromate, Bromochloromethane, Bromomethane, Butylated hydroxyanisole, Cadmium, Carbofuran, Carbon tetrachloride, Chlorodifluoromethane, (methylene chloride) , Dimethipin , Diquat , Endothall , Equilin, Estriol, Estrone, Ethinyl estradiol, Ethoprop , Ethylbenzene , Germanium , Glyphosate, Lindane, Mercury (inorganic), Methoxychlor, Metolachlor, Metribuzin, Monobromoacetic acid, Monochlorobenzene (chlorobenzene) , Nitrite , o-Dichlorobenzene, Perfluoroheptanoic acid (PFHPA), Permethrin , Picloram , Polychlorinated biphenyls (PCBs) , Profenofos , Quinoline , Radium, combined (-226 & -228) , Selenium , Styrene , Tebuconazole, Testosterone, Tetrachloroethylene (perchloroethylene), Thallium, Toluene, trans-1,2-Dichloroethylene, Tribufos, Trichloroethylene, Vinyl chloride, Xylenes (total)
Point-of-use analysis
Our lab is mapping 8 water quality markers to baseline environmental inputs in tap water, including Lead, Nitrate, Fluoride, Iron, and Manganese.
Independent results using trusted methods.
Measurement integrity is our first priority, to ensure that homeowners have actionable data for informed decision-making.
Regional homeowner feedback:
My time spent chatting was enlightening. Dont hesitate to get in and gain some knowledge.
They kept in contact through the testing and called me to discuss the results.
The process was easy and informative.
Seeing the value and units for each analyte made it feel legitimate. Better than a $50 strip kit for sure.
The sample bottle and container were solid. No leaks, no mess.
There was iron in the water. Could be some correlation with neighborhood piping.
They tested my well water and advised me on further steps I could take to make my well water safer to drink. Excellent follow up.
Happy to find a company doing this good work. Exactly what I was looking for.
Technical analysis.
Neighborhood initiative.
Your sample kit is mailed directly to you. Fill the bottle, mail it back, and receive results by email.
The screening establishes a baseline across important household water-quality markers, including Lead, Nitrate, and Fluoride.
Eligibility depends on your location and current program availability.
Some additional information
For qualifying households in select areas, the laboratory screening fee is waived in part through a broader residential water-quality mapping effort.
This means eligible households may request a mail-in kit without paying the lab analysis fee. Return postage of $10.25 is not included.
Availability depends on your area and current program participation.
Once your sample reaches our lab, screening is completed within 3–5 business days. You'll receive an informational report comparing each marker against published health-based reference guidelines, including EWG guidelines and, where applicable, California Public Health Goals.
Our analysis goes beyond basic surface tests. We screen for critical factors including Lead, Iron, Fluoride, Nitrate, Manganese, Hardness, and Total Dissolved Solids (TDS).
These insights help you understand exactly what is in your water and how it interacts with your household wellness.
Every screening includes a one-on-one results review with a Weluma Labs tech. They'll walk you through what each marker means and how your levels compare to Health Guideline ranges.
If your results show elevated markers and you'd like help, you can optionally choose to connect with a vetted regional specialist.