2026 U.S. drinking-water infrastructure research archive
Infrastructure stress, observed over time.
Munimetric studied community drinking-water service markets across the United States and territories during approximately six months in 2026. This completed research archive preserves MISI scores and their methodology at the September 27, 2026 freeze.
Explore the ScreenerCompare statesThe recorded study
Production-resident score dates run March 12–September 27, 2026; broad scored coverage is verified from March 24. The exact original public-live start is unknown.
Final September 27 distribution
These are methodology-derived bands for recorded service markets, not a census of every U.S. system.
What MISI means
A deterministic 0–100 index assembled from five bounded factor families. It describes the result of specified inputs and modeling choices, not objective ground truth about a utility.
Read the methodology and version historyRetrospective findings
Inspect the final national distribution, five-family contributions and recorded study dates. Changes in cohort and method limit trend interpretation.
Read the findingsFind a system
Filter 9,512 approved archived profiles by recorded name, state, score, band and confidence.
Open the ScreenerExplore states
Compare the final scores, band composition and scored-market counts of 57 recorded state or territory codes.
Open StatesWhat survived
The normalized research record is preserved. Some original raw acquisition objects were absent before the archive capture; their exact gap is disclosed.
Read the limitationsBrowse profiles by name · Study timeline
A final-snapshot reading
Across the 9,950 scored markets, the September 27 mean MISI was 25.1 and the median was 25.4. Operational Stress had the highest mean contribution among the five modeled families (11.55 of 20 points). These are descriptive outputs of MISI v0.1.2, not causal findings or a full-U.S. population estimate.