What is known, unknown and still missing.
Every country/territory and facility class is measured separately. “Complete” requires at least 95% of an authoritative denominator plus recurring refresh; no denominator means never 100%.
Rechecking source rights and the current public facility state…
42 facility sources classified
All 249 ISO jurisdictions exist in the ledger: 47 are at C1 and 202 remain C0. A global candidate layer never marks a country as researched by itself.
83 / 5,229 country/facility-class pairs have a country-scoped source; all others remain explicit C0 gaps.
| Source | Rights | Countries | Classes | Lead denominator |
|---|---|---|---|---|
Finland UWWTD urban wastewater treatment plants finland-syke-uwwtd-plants | approved_candidate | FI | municipal_wastewater | 148 |
Poland National Municipal Wastewater Treatment Programme reports poland-wody-polskie-kposk | pending | PL | municipal_wastewater | unknown |
Lead denominators describe likely source volume only. They are not authoritative facility denominators and do not produce a coverage percentage unless the source ledger explicitly records a denominator definition.
Have an authoritative source or a rights correction? Review the evidence policy.