Trust

We are the record.

Nothing we rate is something we sell. Here’s how we keep it that way.

Rate vs certify

Every location gets rated. Certification is earned.

We rate the water at every location we can, automatically. Nobody applies for a rating, the same way nobody applies for a credit rating. Certification is different: a site asks for it, meets the standard and earns the mark, and that work runs behind a firewall. We never certify anything we sold.

Data Independence Policy

Who can and can’t touch a score.

No sponsor, partner or customer can change a score, a band or a finding. Read the Data Independence Policy

Methodology

Published thresholds and a public changelog.

Read the methodology Data Sources & Citations

Every source we cite, in one place.

See the sources