Well water system matcher
Short answer
Enter the numbers from your lab report. Leave blank anything you didn't test. The matcher checks each value against EPA benchmarks and the published limits of each system, then lists what to install, in order. Everything runs in your browser; nothing is sent or stored.
How the matcher decides
- Iron under 3 ppm, no smell, manganese under 1 ppm: a cartridge system can handle it.
- Iron up to 7 ppm, hydrogen sulfide up to 8 ppm, manganese up to 1 ppm: an air-injection oxidation filter.
- Above those limits: chemical oxidation (chlorine or peroxide) designed by a local pro.
- Hardness over 7 gpg: a salt-based softener, after the iron filter.
- Coliform or E. coli: fix the well, shock-chlorinate, retest, and add UV last. UV needs iron under 0.3 ppm and hardness under 7 gpg going in.
- Nitrate over 10 mg/L or arsenic over 10 ppb: reverse osmosis at the kitchen tap, certified for that contaminant.
The matcher is a starting point, not a substitute for a water treatment professional or your health department, especially for E. coli, nitrate or arsenic.