Method01
How we analyze water
Finding states, scoring boundaries, recommendation rules, publication rules, and version history.
Evidence · method · accountability
Trust the data. Understand the method.
PurityMap translates public water records without hiding their age, scope, uncertainty, or source. This hub shows the rules behind every report, ranking, explanation, and recommendation.
How it works
From public record to water intelligence
The chain is explicit so readers can distinguish the source, the structured finding, PurityMap’s interpretation, and any later action.
- 01→
Source
A dated public record from a utility, regulator, or recognized public-data program.
- 02→
Structure
Publisher, place, supplier, sample date, units, qualifiers, and limits remain attached.
- 03→
Validate
Incomplete or contradictory records stay visible as evidence gaps instead of becoming favorable results.
- 04→
Interpret
Published findings are compared only with their stated regulatory or health benchmark.
- 05→
Connect
Explanations, treatment capabilities, products, and editorial context link back to the underlying record.
Standards
The rules, written down
Sources02
Data sources
The public records PurityMap uses, what each source contributes, and the limitations that travel with it.
Pipeline03
Data integrity
How source evidence moves through ingestion, normalization, validation, assessment, and publication.
Policy04
Governance and editorial policy
Versioning, review, evidence preservation, corrections, and the separation of facts from interpretation.
Commerce05
Commercial independence
Why recommendation eligibility is determined before an affiliate offer is attached.
Review06
Corrections and verification
Submit a discrepancy or inspect how a claim moves from evidence to review and status.
What the record can’t see
Public-system evidence has physical limits.
- Published records can lag.
- Private wells may be outside the dataset.
- Service boundaries can cross ZIP codes.
- Premise plumbing can change water after it enters a property.
Close the gap
Resolve my supplierConfirm the supplier behind your tap
Service boundaries can cross ZIP codes. Resolve your address to the one system that serves you.
Accountability in practice
Every claim can be challenged.
For readers
See a discrepancy?
Identify the page, explain the issue, and attach the public evidence that should be reviewed.
Submit a correctionFor utilities
Represent a utility?
Submit the system identifier, claim, and supporting evidence for a governed review.
Request utility verification