Resolve the right water system
Location is a starting point, not proof of service. PurityMap separates likely utility matches from confirmed supplier identity.
About PurityMap
Public water records, made inspectable.
PurityMap is a water-intelligence platform built to help people identify their public water system, understand the evidence behind its record, and see where the record stops.
The core idea
Every important claim should be traceable.Sources, dates, benchmarks, and uncertainty belong beside the finding, not hidden behind it.What we build
From scattered records to usable water intelligence.
Public drinking-water information is fragmented across agencies, utilities, reports, and time periods. PurityMap organizes that evidence without erasing the differences between a place, a utility, a sample, and a household.
Make evidence inspectable
Findings stay connected to the public record, reporting period, benchmark, and limitations that give them meaning.
Connect findings to household action
Treatment context starts with a measured contaminant and a compatible technology—not a generic product ranking.
How information moves
A visible chain from source to household context.
- 01Source
Agency and utility records establish the published evidence.
- 02Record
Names, dates, units, methods, and boundaries are normalized.
- 03Finding
Measurements are compared only with clearly identified benchmarks.
- 04Profile
The result is presented with limitations, sources, and next actions.
Editorial principles
The rules are part of the product.
Evidence before verdicts
We report what the record supports and avoid turning incomplete public data into a blanket “safe” or “unsafe” claim.
Unknown remains unknown
Missing monitoring, unresolved suppliers, and stale records are labeled as limitations rather than silently filled in.
Household boundaries matter
A utility record describes a distribution system. It cannot establish what is happening at a specific tap or inside private plumbing.
Commercial logic stays separate
Product eligibility must follow the finding, treatment technology, and certification scope. Commercial relationships do not alter findings.
What PurityMap is not
A public record is not a tap test.
PurityMap is not a regulator, medical service, laboratory result for your home, or guarantee that a geographic match identifies your supplier. When household-level certainty matters, confirm your utility and use appropriate testing or professional guidance.
Read the health disclaimer →How we publish
Automation assists; evidence governs.
Structured processing can help normalize records and draft explanations. Published claims still depend on source traceability, defined data rules, and review. We document methodology and corrections so readers can inspect the process.
Inspect the evidence