Physical, compliance, and capital-execution pressure reflected in the blended headline composite.
States / Puerto Rico
Puerto Rico
Puerto Rico municipal water system monitoring across 41 scored service markets serving approximately 2.6 million people, with Munimetric scores, stress signals, market rankings, and infrastructure risk context. This state profile highlights what is happening and why it matters using water-system, fiscal, capital, and signal context.
Puerto Rico has an average MISI infrastructure stress score of 5.9/100 in the Stable band as of 2026-05-24. Public records summarize recent drinking-water violations, PFAS monitoring records, lead and copper context, and source-water mix across 41 covered systems. Updated May 2026.
National context
States sized by scored-market count. Color reflects average stress band.
41Markets scored
5.9Headline composite
~2.6MPop. served
52Active signals
Band distribution (MISI)
State headline composite
Component of current headline composite
Affordability, demand-base, and parent-government fiscal pressure reflected in the blended headline composite.
Staleness, disclosure freshness, and reporting-visibility effects reflected in the blended headline composite.
Metropolitano32.7watchArecibo Urbano23.1watchMayaguez21.6watchMaricao15.0stableAceitunas14.1stableSuperacueducto10.9stableEnrique Ortega La Plata-Metrop10.9stableSanta Isabel Urbano10.9stableGuanica Urbano9.1stableMorovis Urbano7.5stableLajas7.5stableLares Espino7.5stableYauco7.5stableJuncos - Ceiba Sur7.5stableBarceloneta Urbano5.5stableGuayanilla Urbano5.5stableRegional Villalba Toa Vaca5.5stableGuayama Urbano4.0stableSalinas Urbano4.0stableCocos4.0stableCoqui4.0stableQuebradillas Urbano3.7stableUtuado Urbano2.7stableQuebrada2.7stableHormiguero2.7stableCerrillos2.7stableLas Piedras Humacao2.7stableMaguayo2.7stableDorado Urbano2.7stableIsabela0.0stableVega Baja Urbano0.0stableGarrochales0.0stableSabana Hoyos0.0stableSantana0.0stableAlmirante Sur0.0stableManati East0.0stableSan Sebastian0.0stableSan German0.0stableSabana Grande0.0stableLago Guajataca0.0stableBarrancas Nuevo0.0stableMetropolitano32.7watchArecibo Urbano23.1watchMayaguez21.6watchMaricao15.0stableAceitunas14.1stableSuperacueducto10.9stableEnrique Ortega La Plata-Metrop10.9stableSanta Isabel Urbano10.9stableGuanica Urbano9.1stableMorovis Urbano7.5stableLajas7.5stableLares Espino7.5stableYauco7.5stableJuncos - Ceiba Sur7.5stableBarceloneta Urbano5.5stableGuayanilla Urbano5.5stableRegional Villalba Toa Vaca5.5stableGuayama Urbano4.0stableSalinas Urbano4.0stableCocos4.0stableCoqui4.0stableQuebradillas Urbano3.7stableUtuado Urbano2.7stableQuebrada2.7stableHormiguero2.7stableCerrillos2.7stableLas Piedras Humacao2.7stableMaguayo2.7stableDorado Urbano2.7stableIsabela0.0stableVega Baja Urbano0.0stableGarrochales0.0stableSabana Hoyos0.0stableSantana0.0stableAlmirante Sur0.0stableManati East0.0stableSan Sebastian0.0stableSan German0.0stableSabana Grande0.0stableLago Guajataca0.0stableBarrancas Nuevo0.0stable
State interpretation guide
How to read Puerto Rico headline composite
Plain-language summary
Puerto Rico currently shows an average MISI headline composite of 5.9 versus a national average of 25.0. In v0.1.2, the headline composite remains a blended structural stress measure rather than a pure physical-condition index. A frozen national reference and a 50 percent single-factor cap reduce the dominance of near-universal and very rare factors, while the component bars continue to separate infrastructure, socioeconomic, and observability readings.
Why this page stands out
- 41 scored systems are included in this state view, with explicit confidence and source-backed context.
- State posture is benchmarked against national averages, not evaluated in isolation.
- Top system links below connect state-level findings directly to profile-level diagnostics.
What to do next
- Review the executive context to understand the state-level pressure pattern.
- Open top system profiles to inspect what is actually driving stress at market level.
- Use saved monitoring after research access is enabled to follow high-stress systems over time.
Public record layer
Statewide Water Quality Context
Stored public-record context for recent drinking-water violations, contaminant monitoring, and source-water mix across covered systems. This is not a tap-water safety determination and does not change the MISI score.
Systems with recent violations
2 of 41Systems with recent public violation rows.Source-water mix41 systems
- Surface water28
- Groundwater13
- Purchased water0
- Mixed source0
- Not stored0
Latest identity snapshot: Dec 31, 2025
Coverage
- Violation, enforcement, and compliance-burden counts use the recent 3 years window for dated stored records.
- Drinking-water identity snapshots are stored for 6 of 41 included scored systems.
- PFAS monitoring summary records are stored for 5 of 41 included systems; missing records are not treated as non-detections.
- Lead and copper summary records are stored for 0 of 41 included systems; missing records are not treated as absence of lead/copper context.
Water quality questionsDefinitions and public-record context
- How many covered systems in Puerto Rico have recent recorded drinking-water violations?
- Stored public records show 2 covered systems with recent drinking-water violations, with 66 recorded violations across 41 covered systems in the recent 3 years window.
- How does Munimetric summarize PFAS public-record context in Puerto Rico?
- Stored contaminant-monitoring summaries are present for 5 covered systems; 2 systems have PFAS detection context in this state summary.
- How does Munimetric summarize lead & copper context in Puerto Rico?
- No stored lead & copper summaries are currently available across the Puerto Rico state context layer.
- What source-water types are represented across covered Puerto Rico systems?
- Stored identity records group covered Puerto Rico systems by source-water type: Surface water: 28, Groundwater: 13.
- Where can I find official drinking-water records for Puerto Rico?
- The Official records drawer lists Public drinking-water profile, Contaminant monitoring records links where currently available for Puerto Rico.
- Is this a real-time statewide tap-water condition rating?
- No. This is not a real-time tap-water condition determination. Munimetric summarizes stored public-record context for research and navigation, and this layer does not change MISI.
Official records
- Public drinking-water profileEPA ECHO: Federal drinking-water dashboard and public-record search entry point.
- Contaminant monitoring recordsEPA UCMR: Federal contaminant-monitoring program reference and public data entry point.
Methodology/source notes
- Methodology/source notesDisplayed from stored public drinking-water records and official program references. This layer does not change MISI.
- Enforcement historyEPA ECHO / SDWIS: Violation and enforcement counts are aggregated from stored public compliance records across covered systems.
- Contaminant monitoring recordsEPA UCMR: PFAS context uses stored contaminant-monitoring summaries where available; missing records are not treated as non-detections.
- State drinking-water programOfficial link not currently stored for this state program mapping.
Top recent compliance-burden systemsRecent 3 years
| System | Population | Source water | Recent violations | Recent enforcement | Public-record flags |
|---|---|---|---|---|---|
| MetropolitanoPR0002591 | 1,077,332 | Surface water | 64 | 88 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records |
| AceitunasPR0004654 | 8,961 | Surface water | 2 | 4 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures |
| MayaguezPR0003283 | 151,555 | Surface water | 0 | 12 | recent enforcement history |
| Arecibo UrbanoPR0002652 | 61,119 | Surface water | 0 | 0 | PFAS detections in stored records |
| Enrique Ortega La Plata-MetropPR0005477 | 363,936 | Surface water | 0 | 0 | no listed burden flags in stored summary |
| Lajas | 59,141 | Surface water | 0 | 0 | no listed burden flags in stored summary |
| Isabela | 57,803 | Surface water | 0 | 0 | no listed burden flags in stored summary |
| Guayama Urbano | 56,063 | Surface water | 0 | 0 | no listed burden flags in stored summary |
This is not a real-time tap-water condition determination. For current advisories or health guidance, consult the utility or state drinking-water program.
Executive context
What This Page Shows
41 of the community drinking-water systems in Puerto Rico are currently scored. Analytics below are calculated from this covered subset only. Covered systems serve approximately 2.6M people.
What the Data Suggests
Puerto Rico has 41 scored service markets in the Munimetric coverage set, covering roughly 2.6 million residents in total. At the latest reading, the state-level average lands at 5.9 out of 100, indicating limited signs of structural stress in aggregate. No markets currently sit in elevated-stress bands.
Across state markets, Capex Pressure (2.1 points average) and Revenue Fragility (2.1) are the leading contributors to headline stress. The relatively close spacing suggests pressure is spread across more than one dimension.
52 active signals are recorded across state markets. The most prevalent is Population Served Decline, affecting 23 markets.
State-level average stress has been relatively steady between recent observation periods, suggesting the current picture reflects persistent conditions rather than a sudden shift.
This summary is based on structured, source-backed public data and is intended for research and monitoring only. It is not investment advice, a credit opinion, or municipal advisory guidance.
Recent Movement
Latest average MISI is 5.9 as of May 24, 2026. Movement since May 22, 2026 is flat.
Compact summary from 40 stored state observations.
State Family Contribution Summary
Capex Pressure2.1 / 20.0
Revenue Fragility2.1 / 20.0
Operational Stress1.1 / 20.0
Governance Risk0.7 / 20.0
Rate Constraint0.0 / 20.0
Signals
Signal Frequency
| Signal | Severity | Markets affected | % of scored |
|---|---|---|---|
| Population Served Decline | high | 23 | 56% |
| Infrastructure Capital Gap | high | 13 | 32% |
| Utility Data Staleness | high | 5 | 12% |
| Compliance Escalation | high | 4 | 10% |
| Current Drought Severity | medium | 4 | 10% |
| PFAS Contamination Risk | medium | 2 | 5% |
| Monitoring / Reporting Failures | medium | 1 | 2% |
Markets
Top Markets
| # | Market | Score | Band | Population | Signals |
|---|---|---|---|---|---|
| 1 | Metropolitano | 32.7 | Watch | 1.1M | 4 |
| 2 | Arecibo Urbano | 23.1 | Watch | 61K | 4 |
| 3 | Mayaguez | 21.6 | Watch | 152K | 4 |
| 4 | Maricao | 15.0 | Stable | 5K | 2 |
| 5 | Aceitunas | 14.1 | Stable | 9K | 3 |
| 6 | Superacueducto | 10.9 | Stable | 25 | 2 |
| 7 | Enrique Ortega La Plata-Metrop | 10.9 | Stable | 364K | 2 |
| 8 | Santa Isabel Urbano | 10.9 | Stable | 51K | 2 |
| 9 | Guanica Urbano | 9.1 | Stable | 14K | 1 |
| 10 | Morovis Urbano | 7.5 | Stable | 26K | 2 |
| 11 | Lajas | 7.5 | Stable | 59K | 1 |
| 12 | Lares Espino | 7.5 | Stable | 18K | 1 |
| 13 | Yauco | 7.5 | Stable | 46K | 2 |
| 14 | Juncos - Ceiba Sur | 7.5 | Stable | 55K | 2 |
| 15 | Barceloneta Urbano | 5.5 | Stable | 27K | 1 |
| 16 | Guayanilla Urbano | 5.5 | Stable | 11K | 1 |
| 17 | Regional Villalba Toa Vaca | 5.5 | Stable | 25K | 2 |
| 18 | Guayama Urbano | 4.0 | Stable | 56K | 2 |
| 19 | Salinas Urbano | 4.0 | Stable | 13K | 2 |
| 20 | Cocos | 4.0 | Stable | 14K | 2 |
Comparison
State Comparison
National average: 25.0
| Rank | State | Avg Score | Band | Markets | Delta vs State |
|---|---|---|---|---|---|
| 50 | Vermont | 19.3 | Stable | 31 | +13.4 |
| 51 | Michigan | 18.8 | Stable | 304 | +12.9 |
| 52 | Puerto Rico | 5.9 | Stable | 41 | +0.0 |
Analytical posture
State Stress Analytics
Score Distribution
Distribution of scored market scores with the state average overlay.
41 markets plotted.
Stress vs Population
Each point is a scored market; tooltip reveals market-level context.
41 markets plotted.
Population View
People served by community water systems in Puerto Rico, colored by stress band.
~2.6M people served by 41 systems in Puerto Rico
Stable
Watch
Fragile
High Stress
Critical
41 scored systems · colored by stress band
Peer Constellation
Select a market to see its nearest peers by score similarity.
24 nearest peers by score distance.
Score Trend
Latest
5.9
Trend
-11.4
Observations
40
Extended layers
Advanced State Context
Priority views, detailed registers, and methodology supporting the analytical core above.
Markets & signals
Priority Views
| # | Market | Score | Band | Population | Signals |
|---|---|---|---|---|---|
| 1 | Metropolitano | 32.7 | Watch | 1.1M | 4 |
| 2 | Arecibo Urbano | 23.1 | Watch | 61K | 4 |
| 3 | Mayaguez | 21.6 | Watch | 152K | 4 |
| 4 | Maricao | 15.0 | Stable | 5K | 2 |
| 5 | Aceitunas | 14.1 | Stable | 9K | 3 |
| 6 | Superacueducto | 10.9 | Stable | 25 | 2 |
| 7 | Enrique Ortega La Plata-Metrop | 10.9 | Stable | 364K | 2 |
| 8 | Santa Isabel Urbano | 10.9 | Stable | 51K | 2 |
| 9 | Guanica Urbano | 9.1 | Stable | 14K | 1 |
| 10 | Morovis Urbano | 7.5 | Stable | 26K | 2 |
| 11 | Lajas | 7.5 | Stable | 59K | 1 |
| 12 | Lares Espino | 7.5 | Stable | 18K | 1 |
| 13 | Yauco | 7.5 | Stable | 46K | 2 |
| 14 | Juncos - Ceiba Sur | 7.5 | Stable | 55K | 2 |
| 15 | Barceloneta Urbano | 5.5 | Stable | 27K | 1 |
| 16 | Guayanilla Urbano | 5.5 | Stable | 11K | 1 |
| 17 | Regional Villalba Toa Vaca | 5.5 | Stable | 25K | 2 |
| 18 | Guayama Urbano | 4.0 | Stable | 56K | 2 |
| 19 | Salinas Urbano | 4.0 | Stable | 13K | 2 |
| 20 | Cocos | 4.0 | Stable | 14K | 2 |
Detailed records
Registers
| # | Market | Score | Band | Population | Signals |
|---|---|---|---|---|---|
| 1 | Metropolitano | 32.7 | Watch | 1.1M | 4 |
| 2 | Arecibo Urbano | 23.1 | Watch | 61K | 4 |
| 3 | Mayaguez | 21.6 | Watch | 152K | 4 |
| 4 | Maricao | 15.0 | Stable | 5K | 2 |
| 5 | Aceitunas | 14.1 | Stable | 9K | 3 |
| 6 | Superacueducto | 10.9 | Stable | 25 | 2 |
| 7 | Enrique Ortega La Plata-Metrop | 10.9 | Stable | 364K | 2 |
| 8 | Santa Isabel Urbano | 10.9 | Stable | 51K | 2 |
| 9 | Guanica Urbano | 9.1 | Stable | 14K | 1 |
| 10 | Morovis Urbano | 7.5 | Stable | 26K | 2 |
| 11 | Lajas | 7.5 | Stable | 59K | 1 |
| 12 | Lares Espino | 7.5 | Stable | 18K | 1 |
| 13 | Yauco | 7.5 | Stable | 46K | 2 |
| 14 | Juncos - Ceiba Sur | 7.5 | Stable | 55K | 2 |
| 15 | Barceloneta Urbano | 5.5 | Stable | 27K | 1 |
| 16 | Guayanilla Urbano | 5.5 | Stable | 11K | 1 |
| 17 | Regional Villalba Toa Vaca | 5.5 | Stable | 25K | 2 |
| 18 | Guayama Urbano | 4.0 | Stable | 56K | 2 |
| 19 | Salinas Urbano | 4.0 | Stable | 13K | 2 |
| 20 | Cocos | 4.0 | Stable | 14K | 2 |
State intelligence is assembled from EPA SDWA compliance records, American Community Survey demographic and economic indicators, FEMA NRI hazard exposure profiles, and state-reported financial disclosures. Each service market receives a MISI score (0–100) based on five families: Operational Stress, Capex Pressure, Revenue Fragility, Rate Constraint, and Governance Risk. Scores are deterministic and threshold-based. In v0.1.2, the headline composite remains a blended structural stress measure rather than a pure physical-condition index. A frozen national reference and a 50 percent single-factor cap reduce the dominance of near-universal and very rare factors, while the component bars continue to separate infrastructure, socioeconomic, and observability readings. Peer context is provided by percentile ranking within population-based cohorts.
Munimetric tracks infrastructure stress across 41 community drinking-water systems in Puerto Rico, covering compliance conditions, capital needs, revenue and rate pressure, and governance risk. Use this page to research which systems face the highest structural stress and how Puerto Rico compares nationally.
- Which water systems in Puerto Rico face the most infrastructure stress?
- The highest-stress systems in Puerto Rico are ranked by MISI score above. Stress reflects operational burden, capital gaps, revenue fragility, rate affordability constraints, and governance risk—not a single compliance event. In v0.1.2, the headline composite remains a blended structural stress measure rather than a pure physical-condition index. A frozen national reference and a 50 percent single-factor cap reduce the dominance of near-universal and very rare factors, while the component bars continue to separate infrastructure, socioeconomic, and observability readings.
- How does Puerto Rico compare to other states for drinking water infrastructure risk?
- Puerto Rico is compared against all 50 states and territories using average MISI score, market count, and band distribution. The state comparison table above shows where Puerto Rico ranks nationally and how its average score compares.
- Are there lead pipe or corrosion-related concerns in Puerto Rico water systems?
- Where lead and copper rule compliance data is available from EPA SDWA records, Munimetric factors it into the Operational Stress family. Specific lead service line inventories vary by system. Individual system profiles contain the most detailed compliance context available.
- What compliance signals are active in Puerto Rico?
- Munimetric tracks signals such as compliance escalation, monitoring and reporting failures, data staleness, and financial stress indicators across Puerto Rico systems. The signal frequency table above summarizes which signals are most prevalent statewide.
- Does Munimetric track boil water advisories in Puerto Rico?
- Munimetric does not track real-time boil water advisories. For current advisories, contact your local water utility or state drinking water program. Munimetric monitors structural conditions—compliance posture, infrastructure stress, and governance risk—that provide broader context around system reliability.
- Metropolitano water system profile
- Arecibo Urbano drinking water infrastructure profile
- Mayaguez MISI score & system data
- Maricao water system profile
- Aceitunas drinking water infrastructure profile
- Superacueducto MISI score & system data
- Enrique Ortega La Plata-Metrop water system profile
- Santa Isabel Urbano drinking water infrastructure profile
- Guanica Urbano MISI score & system data
- Morovis Urbano water system profile
- Lajas drinking water infrastructure profile
- Lares Espino MISI score & system data
- Yauco water system profile
- Juncos - Ceiba Sur drinking water infrastructure profile
- Barceloneta Urbano MISI score & system data
Keep monitoring this state
Research access covers saved monitoring, alerts, recurring briefs, and team review.
Water Infrastructure in Puerto Rico
Munimetric tracks infrastructure stress across 41 community drinking-water systems in Puerto Rico. Each system receives a Munimetric Infrastructure Stress Index (MISI) score from 0 to 100, calculated across five risk families: Operational Stress, Capex Pressure, Revenue Fragility, Rate Constraint, and Governance Risk. Higher scores indicate more structural stress. Scores are source-backed and deterministic, drawing from EPA SDWA compliance records, American Community Survey demographic and economic data, FEMA National Risk Index hazard profiles, and state financial disclosures.
State-level monitoring shows which systems face the highest structural stress, how Puerto Rico compares against other states nationally, and which monitoring signals are most active across the state. Each individual system profile includes compliance history, score family drivers, peer rankings within population-based cohorts where safeguards pass, and public source context. Full provenance cards and source workbench views remain workflow-gated. Munimetric covers community water systems across all 50 states and territories. This is structural risk research—not a water quality rating, advisory feed, or credit rating. Updated May 2026.
The statewide public-record layer adds drinking-water violation categories, PFAS monitoring summaries where stored, lead and copper context, source-water mix, and official record links across covered systems. These records help explain water-system context alongside infrastructure stress without turning Munimetric into a tap-water safety determination.
- What is the Munimetric score for Puerto Rico?
- Munimetric assigns a state-level average MISI score based on the individual scores of all covered community water systems in Puerto Rico. The state average, band distribution, and market-level rankings are shown on this page. Higher MISI values indicate greater structural stress.
- Which water systems in Puerto Rico face the most infrastructure stress?
- The state page ranks the highest-stress systems in Puerto Rico by MISI score. Stress reflects operational burden, capital gaps, revenue fragility, rate affordability constraints, and governance risk, not a single compliance event. The headline remains a blended structural stress composite rather than a pure physical-condition index. Workflow actions remain reserved for account access.
- How does Puerto Rico compare to other states for drinking water infrastructure risk?
- Puerto Rico is compared against all 50 states and territories using average MISI score, market count, and band distribution. Munimetric tracks nationwide coverage across 9,000+ scored service markets.
- Are there lead pipe or corrosion-related concerns in Puerto Rico water systems?
- Where lead and copper rule compliance data is available from EPA SDWA records, Munimetric factors it into the Operational Stress family score. Specific lead service line inventories vary by system. Individual system profiles contain the most detailed compliance context available.
- Does Munimetric include PFAS monitoring context for Puerto Rico water systems?
- Munimetric summarizes stored PFAS monitoring context where public contaminant-monitoring records are available. Missing PFAS summaries remain missing records, not non-detections, and this public-record layer does not change the MISI score by itself.
- What compliance signals are active in Puerto Rico?
- Munimetric tracks signals such as compliance escalation, monitoring and reporting failures, population decline, income erosion, data staleness, and parent-government fiscal stress across Puerto Rico water systems.
- Does Munimetric track boil water advisories in Puerto Rico?
- Munimetric does not track real-time boil water advisories. For current advisories, contact your local water utility or state drinking water program. Munimetric monitors structural conditions that provide context around system reliability over time.
- U.S. water infrastructure stress monitoring homepage
- How Munimetric scores drinking water systems
- Browse all water system profiles in the Screener
- Compare water infrastructure risk across all U.S. states
- Browse Puerto Rico water systems by MISI stress band
- Browse Puerto Rico water systems by population served
- Browse Puerto Rico water systems by source-water type
- Water infrastructure research & guides
- Munimetric analytical rankings
- Compare states by average MISI
- Compare states by High Stress share
- National High-Stress water-system ranking