Physical, compliance, and capital-execution pressure reflected in the blended headline composite.
States / Maryland
Maryland
Statewide Munimetric profile for Maryland, covering drinking-water market scores, signal activity, infrastructure stress context, and population insights across 78 scored service markets serving approximately 12.7 million people. This state profile highlights what is happening and why it matters using water-system, fiscal, capital, and signal context.
Maryland has an average MISI infrastructure stress score of 25.9/100 in the Watch band as of 2026-05-19. Public records summarize recent drinking-water violations, PFAS monitoring records, lead and copper context, and source-water mix across 78 covered systems. Updated May 2026.
National context
States sized by scored-market count. Color reflects average stress band.
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.
State interpretation guide
How to read Maryland headline composite
Plain-language summary
Maryland currently shows an average MISI headline composite of 25.9 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
- 78 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 Track to monitor changes in 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.
- Surface water36
- Groundwater42
- Purchased water0
- Mixed source0
- Not stored0
Latest identity snapshot: Dec 31, 2025
- Violation, enforcement, and compliance-burden counts use the recent 3 years window for dated stored records.
- Drinking-water identity snapshots are stored for 76 of 78 included scored systems.
- PFAS monitoring summary records are stored for 66 of 78 included systems; missing records are not treated as non-detections.
- Lead and copper summary records are stored for 65 of 78 included systems; missing records are not treated as absence of lead/copper context.
- How many covered systems in Maryland have recent recorded drinking-water violations?
- Stored public records show 35 covered systems with recent drinking-water violations, with 276 recorded violations across 78 covered systems in the recent 3 years window.
- How does Munimetric summarize PFAS public-record context in Maryland?
- Stored contaminant-monitoring summaries are present for 66 covered systems; 42 systems have PFAS detection context in this state summary.
- How does Munimetric summarize lead & copper context in Maryland?
- Stored lead & copper summaries are present for 65 covered systems; 36 systems have violation or action-level context in this state summary.
- What source-water types are represented across covered Maryland systems?
- Stored identity records group covered Maryland systems by source-water type: Surface water: 36, Groundwater: 42.
- Where can I find official drinking-water records for Maryland?
- The Official records drawer lists Public drinking-water profile, Contaminant monitoring records links where currently available for Maryland.
- 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 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.
| System | Population | Source water | Recent violations | Recent enforcement | Public-record flags |
|---|---|---|---|---|---|
| Town Of PerryvilleMD0070018 | 4,413 | Surface water | 73 | 39 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures, lead/copper context |
| City Of Havre De GraceMD0120012 | 14,000 | Surface water | 34 | 20 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures, lead/copper context |
| City Of RockvilleMD0150003 | 52,000 | Surface water | 32 | 10 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records, lead/copper context |
| Town Of North EastMD0070016 | 8,600 | Surface water | 19 | 60 | recent violations recorded, recent enforcement history, PFAS detections in stored records, lead/copper context |
| Midland-LonaconingMD0010018 | 5,000 | Surface water | 16 | 52 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures, lead/copper context |
| City Of BaltimoreMD0300002 | 1,600,000 | Surface water | 11 | 57 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records, lead/copper context |
| Lexington ParkMD0180007 | 43,030 | Groundwater | 7 | 23 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures |
| Town Of Ocean CityMD0230003 | 30,000 | Groundwater | 6 | 27 | recent violations recorded, recent enforcement history, recent monitoring/reporting failures, PFAS detections in stored records, lead/copper context |
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
78 of the community drinking-water systems in Maryland are currently scored. Analytics below are calculated from this covered subset only. Covered systems serve approximately 12.7M people.
What the Data Suggests
Maryland has 78 scored service markets in the Munimetric coverage set, covering roughly 12.7 million residents in total. At the latest reading, the state-level average lands at 25.9 out of 100, indicating early but meaningful signs of structural stress in aggregate. A relatively small share — roughly 8% — currently sit in elevated-stress bands.
Across state markets, Operational Stress (11.4 points average) and Capex Pressure (9.0) are the leading contributors to headline stress. The relatively close spacing suggests pressure is spread across more than one dimension.
399 active signals are recorded across state markets. The most prevalent is Current Drought Severity, affecting 78 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 25.9 as of May 19, 2026. Movement since May 17, 2026 is flat.
Compact summary from 42 stored state observations.
State Family Contribution Summary
Signals
Signal Frequency
| Signal | Severity | Markets affected | % of scored |
|---|---|---|---|
| Current Drought Severity | high | 78 | 100% |
| Climate Hazard Exposure | high | 65 | 83% |
| High-AGI Out-Migration | high | 45 | 58% |
| PFAS Contamination Risk | high | 42 | 54% |
| Compliance Escalation | high | 41 | 53% |
| Lead & Copper Rule Risk | high | 36 | 46% |
| Infrastructure Capital Gap | high | 29 | 37% |
| Housing Market Weakness | medium | 29 | 37% |
| Parent-Government Fiscal Stress | high | 12 | 15% |
| Population Served Decline | medium | 11 | 14% |
| Monitoring / Reporting Failures | medium | 9 | 12% |
| Utility Data Staleness | high | 2 | 3% |
Markets
Top Markets
| # | Market | Score | Band | Population | Signals |
|---|---|---|---|---|---|
| 1 | Freedom District | 45.8 | Fragile | 25K | 8 |
| 2 | City of Baltimore | 45.2 | Fragile | 1.6M | 8 |
| 3 | City of Rockville | 44.0 | Fragile | 52K | 7 |
| 4 | Town of Elkton | 41.7 | Fragile | 16K | 8 |
| 5 | Howard County D.p.w. Distribution | 41.7 | Fragile | 286K | 8 |
| 6 | Glen Burnie-Broadneck | 40.9 | Fragile | 291K | 7 |
| 7 | Town of North East | 39.1 | Watch | 9K | 7 |
| 8 | Crofton-Odenton | 37.9 | Watch | 63K | 7 |
| 9 | Town of Hampstead | 37.4 | Watch | 7K | 8 |
| 10 | Town of Poolesville | 37.0 | Watch | 6K | 7 |
| 11 | City of Annapolis | 36.7 | Watch | 35K | 6 |
| 12 | City of Brunswick | 36.2 | Watch | 7K | 6 |
| 13 | Town of Ocean City | 35.9 | Watch | 30K | 6 |
| 14 | Broad Creek | 35.4 | Watch | 23K | 6 |
| 15 | Town of Middletown | 35.0 | Watch | 4K | 7 |
| 16 | Midland-Lonaconing | 34.7 | Watch | 5K | 6 |
| 17 | City of Cumberland | 34.1 | Watch | 27K | 6 |
| 18 | City of Bowie | 34.1 | Watch | 25K | 6 |
| 19 | Town of Perryville | 32.7 | Watch | 4K | 7 |
| 20 | Washington Suburban Sanitary Commission | 32.4 | Watch | 1.9M | 5 |
Comparison
State Comparison
National average: 25.0
| Rank | State | Avg Score | Band | Markets | Delta vs State |
|---|---|---|---|---|---|
| 22 | Kansas | 26.5 | Watch | 90 | +0.7 |
| 23 | Rhode Island | 26.3 | Watch | 29 | +0.4 |
| 24 | Maryland | 25.9 | Watch | 78 | +0.0 |
| 25 | Colorado | 25.2 | Watch | 174 | -0.7 |
| 26 | North Carolina | 25.1 | Watch | 276 | -0.8 |
Analytical posture
State Stress Analytics
Score Distribution
Distribution of scored market scores with the state average overlay.
78 markets plotted.
Stress vs Population
Each point is a scored market; tooltip reveals market-level context.
77 markets plotted.
Population View
People served by community water systems in Maryland, colored by stress band.
~12.7M people served by 78 systems in Maryland
78 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
25.9
Trend
+21.9
Observations
42
Extended layers
Advanced State Context
Priority views, detailed registers, and methodology supporting the analytical core above.
Markets & signals
Priority Views
| # | Service Market | Score | Band | Pop. | Signals |
|---|---|---|---|---|---|
| 1 | Freedom District | 45.8 | Fragile | 25K | 8 |
| 2 | City of Baltimore | 45.2 | Fragile | 1.6M | 8 |
| 3 | City of Rockville | 44.0 | Fragile | 52K | 7 |
| 4 | Town of Elkton | 41.7 | Fragile | 16K | 8 |
| 5 | Howard County D.p.w. Distribution | 41.7 | Fragile | 286K | 8 |
| 6 | Glen Burnie-Broadneck | 40.9 | Fragile | 291K | 7 |
| 7 | Town of North East | 39.1 | Watch | 9K | 7 |
| 8 | Crofton-Odenton | 37.9 | Watch | 63K | 7 |
| 9 | Town of Hampstead | 37.4 | Watch | 7K | 8 |
| 10 | Town of Poolesville | 37.0 | Watch | 6K | 7 |
| 11 | City of Annapolis | 36.7 | Watch | 35K | 6 |
| 12 | City of Brunswick | 36.2 | Watch | 7K | 6 |
| 13 | Town of Ocean City | 35.9 | Watch | 30K | 6 |
| 14 | Broad Creek | 35.4 | Watch | 23K | 6 |
| 15 | Town of Middletown | 35.0 | Watch | 4K | 7 |
| 16 | Midland-Lonaconing | 34.7 | Watch | 5K | 6 |
| 17 | City of Cumberland | 34.1 | Watch | 27K | 6 |
| 18 | City of Bowie | 34.1 | Watch | 25K | 6 |
| 19 | Town of Perryville | 32.7 | Watch | 4K | 7 |
| 20 | Washington Suburban Sanitary Commission | 32.4 | Watch | 1.9M | 5 |
Detailed records
Registers
| # | Market | Score | Band | Population | Signals |
|---|---|---|---|---|---|
| 1 | Freedom District | 45.8 | Fragile | 25K | 8 |
| 2 | City of Baltimore | 45.2 | Fragile | 1.6M | 8 |
| 3 | City of Rockville | 44.0 | Fragile | 52K | 7 |
| 4 | Town of Elkton | 41.7 | Fragile | 16K | 8 |
| 5 | Howard County D.p.w. Distribution | 41.7 | Fragile | 286K | 8 |
| 6 | Glen Burnie-Broadneck | 40.9 | Fragile | 291K | 7 |
| 7 | Town of North East | 39.1 | Watch | 9K | 7 |
| 8 | Crofton-Odenton | 37.9 | Watch | 63K | 7 |
| 9 | Town of Hampstead | 37.4 | Watch | 7K | 8 |
| 10 | Town of Poolesville | 37.0 | Watch | 6K | 7 |
| 11 | City of Annapolis | 36.7 | Watch | 35K | 6 |
| 12 | City of Brunswick | 36.2 | Watch | 7K | 6 |
| 13 | Town of Ocean City | 35.9 | Watch | 30K | 6 |
| 14 | Broad Creek | 35.4 | Watch | 23K | 6 |
| 15 | Town of Middletown | 35.0 | Watch | 4K | 7 |
| 16 | Midland-Lonaconing | 34.7 | Watch | 5K | 6 |
| 17 | City of Cumberland | 34.1 | Watch | 27K | 6 |
| 18 | City of Bowie | 34.1 | Watch | 25K | 6 |
| 19 | Town of Perryville | 32.7 | Watch | 4K | 7 |
| 20 | Washington Suburban Sanitary Commission | 32.4 | Watch | 1.9M | 5 |
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 78 community drinking-water systems in Maryland, 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 Maryland compares nationally.
- Which water systems in Maryland face the most infrastructure stress?
- The highest-stress systems in Maryland 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 Maryland compare to other states for drinking water infrastructure risk?
- Maryland is compared against all 50 states and territories using average MISI score, market count, and band distribution. The state comparison table above shows where Maryland ranks nationally and how its average score compares.
- Are there lead pipe or corrosion-related concerns in Maryland 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 Maryland?
- Munimetric tracks signals such as compliance escalation, monitoring and reporting failures, data staleness, and financial stress indicators across Maryland systems. The signal frequency table above summarizes which signals are most prevalent statewide.
- Does Munimetric track boil water advisories in Maryland?
- 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.
- Freedom District water system profile
- City of Baltimore drinking water infrastructure profile
- City of Rockville MISI score & system data
- Town of Elkton water system profile
- Howard County D.p.w. Distribution drinking water infrastructure profile
- Glen Burnie-Broadneck MISI score & system data
- Town of North East water system profile
- Crofton-Odenton drinking water infrastructure profile
- Town of Hampstead MISI score & system data
- Town of Poolesville water system profile
- City of Annapolis drinking water infrastructure profile
- City of Brunswick MISI score & system data
- Town of Ocean City water system profile
- Broad Creek drinking water infrastructure profile
- Town of Middletown MISI score & system data
Keep monitoring this state
Workflow access covers exports, Track, Munex, alerts, and repeat monitoring tools.
Water Infrastructure in Maryland
Munimetric tracks infrastructure stress across 78 community drinking-water systems in Maryland. 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 Maryland 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 Maryland?
- Munimetric assigns a state-level average MISI score based on the individual scores of all covered community water systems in Maryland. 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 Maryland face the most infrastructure stress?
- The state page ranks the highest-stress systems in Maryland 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 Maryland compare to other states for drinking water infrastructure risk?
- Maryland 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 Maryland 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 Maryland 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 Maryland?
- Munimetric tracks signals such as compliance escalation, monitoring and reporting failures, population decline, income erosion, data staleness, and parent-government fiscal stress across Maryland water systems.
- Does Munimetric track boil water advisories in Maryland?
- 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 Maryland water systems by MISI stress band
- Browse Maryland water systems by population served
- Browse Maryland 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