Munimetric Water System Profile

Philadelphia, PA

Drinking Water Infrastructure Profile

Munimetric analysis of drinking water infrastructure in Philadelphia, PA, Pennsylvania, including MISI stress score, active signals, and peer-relative monitoring context. This profile highlights what is happening and why it matters using water-system, fiscal, capital, and signal context.

Philadelphia, PA has a MISI infrastructure stress score of 50.6/100 in the Fragile band as of 2026-06-16. Public records show surface-water sourcing, PFAS monitoring context, lead and copper compliance context and approximately 1,600,000 residents served. Updated May 2026.

FragileScore date Jun 16, 2026Methodology v0.1.2

Headline score

50.6

95% confidence · cohort Community · 250k+ · Surface.

50.6Headline composite
FragileBand
95%Confidence
~1.6MPop. served
P97Peer percentile
19Active signals

Current headline composite

Component of current headline composite

Infrastructure Stress40.0 / 100

Physical, compliance, and capital-execution pressure reflected in the blended headline composite.

Socioeconomic Stress10.6 / 100

Affordability, demand-base, and parent-government fiscal pressure reflected in the blended headline composite.

Observability Stress0.0 / 100

Staleness, disclosure freshness, and reporting-visibility effects reflected in the blended headline composite.

50.6/100 headline compositeFragile95% confidencedrinking_water::community_water_system::250k_plus::surface_water~1.6M people served

Monitoring context stored

Water Quality & Supply Context

Public-record context for this system. Stored monitoring and compliance records only. Does not change MISI.

Public records
Records presentPAPWSID PA1510001.
Recent violations
5 records5 MRInterim and Long Term 1 Enhanced Surface Water Treatment Rule
Enforcement records
5 recordsStored public enforcement rows.
PFAS monitoring records
50 detections0.01Stored PFAS monitoring records list 360 samples and 50 detections.
Lead/copper monitoring records
Records stored12 samplesStored lead/copper records list 0 open LCR violations and 0 action-level records.
Source / supply context
Surface waterIdentity1,600,000 served; Dec 31, 2025.

Tier 1 profile guide

How to interpret Philadelphia, PA

Plain-language summary

Philadelphia, PA is part of the selected Tier 1 profile set. This page is designed to quickly explain what the MISI headline composite means here. 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

What to do next

Executive context

What the Data Suggests

Philadelphia, PA's public water system serves roughly 1.6 million residents, placing it among the larger community systems in this coverage set. The current reading places the system in a zone of moderate-to-elevated stress that goes beyond normal operating variation.

The score is being driven mainly by Operational Stress, which is at the top of its range in the model, with Capex Pressure adding another heavy layer of pressure. That combination suggests strain is showing up across core system functions, not just one isolated dimension.

10 active stress signals are attached to this system, including 6 at high severity. That signal mix points to a system where several warning indicators are firing at once, not just one extreme outlier.

Within Community · 250k+ · Surface, this system ranks around the 97th percentile on measured stress, placing it near the top of peer-group stress.

Recent observations suggest the system has been relatively steady rather than sharply improving or deteriorating — the current picture looks more like persistent underlying pressure 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.

Analytical posture

Market Stress Analytics

Family Contribution

MISI family contributions for this market.

Operational StressOperational Stress: 20.0 / 20.020.0Capex PressureCapex Pressure: 20.0 / 20.020.0Rate ConstraintRate Constraint: 6.6 / 20.06.6Revenue FragilityRevenue Fragility: 4.0 / 20.04.0Governance RiskGovernance Risk: 0.0 / 20.00.0

Peer Position

Where Philadelphia sits within its peer cohort.

0%25%50%75%100%50.6drinking_water::community_water_system::250k_plus::surface_water · 157 systems · 97th percentileLess stressMore stress
Income ErosionIncome Erosion: 15.2% weight — Available 15.2%Compliance EscalationCompliance Escalation: 9.1% weight — Available 9.1%Infrastructure Capit…Infrastructure Capital Gap: 9.1% weight — Available 9.1%Population Served De…Population Served Decline: 7.6% weight — Available 7.6%Housing Market Weakn…Housing Market Weakness: 7.6% weight — Available 7.6%Parent-Government Fi…Parent-Government Fiscal Stress: 7.6% weight — Available 7.6%Monitoring / Reporti…Monitoring / Reporting Failures: 6.1% weight — Available 6.1%Climate Hazard Expos…Climate Hazard Exposure: 6.1% weight — Available 6.1%Lead & Copper Rule R…Lead & Copper Rule Risk: 6.1% weight — Available 6.1%PFAS Contamination R…PFAS Contamination Risk: 6.1% weight — Available 6.1%SRF Dependence SpikeSRF Dependence Spike: 6.1% weight — Available 6.1%Utility Data StalenessUtility Data Staleness: 4.5% weight — Available 4.5%High-AGI Out-MigrationHigh-AGI Out-Migration: 3.0% weight — Available 3.0%Formal Enforcement O…Formal Enforcement Obligations: 3.0% weight — Available 3.0%Rapid Score Deterior…Rapid Score Deterioration: 3.0% weight — Available 3.0%
AvailableMissing

Score History

Latest

50.6

Trend

+42.6

Observations

63

Mar 12, 2026 · 8.0Mar 13, 2026 · 13.0Mar 13, 2026 · 8.0Mar 16, 2026 · 13.0Mar 18, 2026 · 29.0Mar 20, 2026 · 29.0Mar 21, 2026 · 29.0Mar 22, 2026 · 29.0Mar 24, 2026 · 24.0Mar 25, 2026 · 41.0Mar 29, 2026 · 36.0Apr 2, 2026 · 36.0Apr 3, 2026 · 41.0Apr 3, 2026 · 36.0Apr 4, 2026 · 36.0Apr 5, 2026 · 41.0Apr 5, 2026 · 36.0Apr 6, 2026 · 52.0Apr 7, 2026 · 52.0Apr 8, 2026 · 52.0Apr 9, 2026 · 52.0Apr 10, 2026 · 52.0Apr 13, 2026 · 52.0Apr 14, 2026 · 52.0Apr 18, 2026 · 52.0Apr 19, 2026 · 52.0Apr 21, 2026 · 52.0Apr 22, 2026 · 52.0Apr 23, 2026 · 52.0Apr 24, 2026 · 52.0Apr 25, 2026 · 52.0Apr 26, 2026 · 50.6Apr 26, 2026 · 52.0Apr 27, 2026 · 50.6Apr 28, 2026 · 50.6Apr 29, 2026 · 50.6Apr 30, 2026 · 50.6May 1, 2026 · 50.6May 2, 2026 · 50.6May 3, 2026 · 50.6May 4, 2026 · 50.6May 5, 2026 · 50.6May 6, 2026 · 50.6May 7, 2026 · 50.6May 8, 2026 · 50.6May 9, 2026 · 50.6May 10, 2026 · 50.6May 17, 2026 · 50.6May 19, 2026 · 50.6May 21, 2026 · 50.6May 22, 2026 · 50.6May 24, 2026 · 50.6May 26, 2026 · 50.6May 28, 2026 · 50.6May 31, 2026 · 50.6Jun 1, 2026 · 50.6Jun 2, 2026 · 50.6Jun 8, 2026 · 50.6Jun 11, 2026 · 50.6Jun 12, 2026 · 50.6Jun 14, 2026 · 50.6Jun 15, 2026 · 50.6Jun 16, 2026 · 50.6Mar 12, 2026Jun 16, 2026

Unified Explainability

Structural indicators

Stress diagnostics

  • Structural stress is currently driven by compliance-related escalation within recent monitoring activity.
  • Affordability pressure is present, with declining real income affecting rate capacity.
  • Liquidity conditions indicate moderate constraint.
  • Additional monitoring signals reflect ongoing administrative and reporting strain.
  • Some areas remain under active evaluation as coverage expands.

Signal timeline summary

No signal timeline history is stored for this profile.

Source observations

Completeness 0% · raw-file links remain policy-gated to authorized internal review workflows.

No source observations are stored on this profile.

Stress movement

Diagnostics

Diagnostics & Movement

Compact status for confidence, data coverage, disclosure freshness, and stored score movement. Detailed diagnostic history remains available below.

Confidence

95%

Confidence is mainly capped by service-area mapping quality.

Factor coverage

Complete

All tracked confidence factors are currently available.

Disclosure freshness

Not available

Some profile sections are selectively summarized because confidence is currently medium.

Latest movement

flat 0.0

Compared with Jun 15, 2026.

Last material movement

-1.4

Recorded Apr 26, 2026.

History

63 observations stored

Latest stored observation Jun 16, 2026.

Show detailed diagnostic history

Expanded stress diagnostics

Open detailed contribution diagnostics

No detailed factor diagnostics are stored for this profile snapshot.

Confidence summary

Confidence is mainly capped by service-area mapping quality.

Gate medium (option_b)

  • score_confidence: high
  • availability_score: high
  • mapping_confidence: medium
  • freshness_score: high
  • provenance_completeness: unknown

Missing factor coverage

No factor gaps are recorded on the latest stored score.

Disclosure freshness diagnostics

1 attached local documents · 1 structured facts

Some profile sections are selectively summarized because confidence is currently medium.

Latest reference Oct 29, 2025 · stale after Oct 29, 2026

Score movement

flat 0.0

Previous run Jun 15, 2026

Jun 16, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Jun 15, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Jun 14, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Jun 12, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Jun 11, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Jun 8, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Jun 2, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Jun 1, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 31, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 28, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 26, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 24, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 22, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 21, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 19, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 17, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 10, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 9, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 8, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 7, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 6, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 5, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 4, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 3, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 2, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

May 1, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 30, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 29, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 28, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 27, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 26, 2026

Score 50.6 in band fragile. Confidence 95%.

Delta vs prior run -1.4

Apr 26, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 25, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 24, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 23, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 22, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 21, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 19, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 18, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 14, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 13, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 10, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 9, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 8, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 7, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 0.0

Apr 6, 2026

Score 52.0 in band fragile. Confidence 95%.

Delta vs prior run 11.0

Apr 5, 2026

Score 41.0 in band fragile. Confidence 83%.

Delta vs prior run 5.0

Apr 5, 2026

Score 36.0 in band watch. Confidence 95%.

Delta vs prior run 0.0

Apr 4, 2026

Score 36.0 in band watch. Confidence 95%.

Delta vs prior run -5.0

Apr 3, 2026

Score 41.0 in band fragile. Confidence 95%.

Delta vs prior run 5.0

Apr 3, 2026

Score 36.0 in band watch. Confidence 95%.

Delta vs prior run 0.0

Apr 2, 2026

Score 36.0 in band watch. Confidence 95%.

Delta vs prior run 0.0

Mar 29, 2026

Score 36.0 in band watch. Confidence 88%.

Delta vs prior run -5.0

Mar 25, 2026

Score 41.0 in band fragile. Confidence 88%.

Delta vs prior run 17.0

Mar 24, 2026

Score 24.0 in band watch. Confidence 80%.

Delta vs prior run -5.0

Mar 22, 2026

Score 29.0 in band watch. Confidence 80%.

Delta vs prior run 0.0

Mar 21, 2026

Score 29.0 in band watch. Confidence 80%.

Delta vs prior run 0.0

Mar 20, 2026

Score 29.0 in band watch. Confidence 80%.

Delta vs prior run 0.0

Mar 18, 2026

Score 29.0 in band watch. Confidence 80%.

Delta vs prior run 16.0

Mar 16, 2026

Score 13.0 in band stable. Confidence 80%.

Delta vs prior run 0.0

Mar 13, 2026

Score 13.0 in band stable. Confidence 80%.

Delta vs prior run 5.0

Mar 13, 2026

Score 8.0 in band stable. Confidence 74%.

Delta vs prior run 0.0

Mar 12, 2026

Score 8.0 in band stable. Confidence 74%.

Trend and export

Full timeline review is available for paid workflows.

Extended layers

Advanced Profile Context

System

PA1510001

1,600,000 pop. served

Headline

50.6

Band: fragile

Methodology

vv0.1.2

As of Jun 16, 2026

Infrastructure Exposure

Drinking-water system snapshot

PWSID PA1510001 · population served 1,600,000 · source water surface_water

Violations 5 · enforcement actions 5

Wastewater and capital beta context

Wastewater links 0 · capital indicators 0 · SRF projects 0

Headline-score eligibility remains off by default unless mapping confidence is high and explicitly enabled.

Assembled from EPA SDWA compliance records, ACS demographic/economic indicators, FEMA NRI hazard exposures, and state-reported financial disclosures. MISI score (0–100) is deterministic and threshold-based across five families. 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 via population-based cohort percentiles.

About Philadelphia, PA

Philadelphia, PA is a community drinking-water system in Pennsylvania that Munimetric monitors for infrastructure stress. The current MISI score of 50.6 out of 100 places this system in the fragile stress band as of 2026-06-16. The MISI composite reflects five structural risk families: Operational Stress, Capex Pressure, Revenue Fragility, Rate Constraint, and Governance Risk. Higher scores indicate more structural stress.

Data is assembled from EPA SDWA compliance records, American Community Survey demographic and economic indicators, FEMA National Risk Index hazard exposure data, state-reported financial disclosures, and stored public-record water quality context where available. This system serves approximately 1,600,000 people. The system has 5 recorded compliance violations in the SDWA record. Munimetric does not fabricate data where public records are unavailable. This profile is for structural monitoring and research—not a current-condition determination or credit rating. Updated May 2026.

What is the Munimetric score for Philadelphia, PA?
The current Munimetric Infrastructure Stress Index (MISI) score for Philadelphia, PA is 50.6 out of 100, placing this system in the fragile stress band. MISI is a composite of five structural risk families. Higher values indicate more stress. The score is deterministic, source-backed, and updated as new data becomes available.
Does Philadelphia, PA show signs of drinking-water infrastructure stress?
Munimetric monitors structural stress indicators for Philadelphia, PA across operational conditions, capital needs, revenue stability, rate affordability, and governance quality. The current MISI score and active signals shown in this profile reflect the latest available evidence from EPA, ACS, FEMA NRI, and state financial disclosures.
Does Munimetric rate current tap-water conditions for Philadelphia, PA?
No. Munimetric is not a water testing service and does not make current-condition determinations. This profile tracks structural conditions: compliance posture, financial pressure, infrastructure stress, and governance quality. For current water quality testing results, consult the system's Consumer Confidence Report or contact the local water utility.
Has Philadelphia, PA had a boil water advisory?
Munimetric does not track real-time boil water advisories. For current advisory status, contact your local water utility or state drinking water program. This profile tracks structural risk indicators and compliance history that provide long-term context around system reliability.
Are lead pipes or corrosion risk a concern in Philadelphia, PA?
Where EPA SDWA compliance data includes lead and copper rule monitoring, violations, or enforcement actions, that information feeds into the Operational Stress component of the MISI score. Munimetric does not fabricate lead pipe data where public records are silent.
Does Munimetric include PFAS monitoring context for Philadelphia, PA?
Where stored public records include UCMR or contaminant-monitoring summaries, Munimetric displays PFAS monitoring context as public-record evidence. Missing PFAS summaries are treated as missing records, not as non-detections. This context does not change MISI by itself.
What source-water context is available for Philadelphia, PA?
Munimetric displays stored source-water and supply context where public drinking-water identity records are available. Source-water context helps explain treatment and supply exposure, but missing source records remain explicit rather than inferred.
Why might water rates be increasing in Philadelphia, PA?
Rate pressure can reflect capital investment needs, a declining customer base, revenue fragility, affordability constraints, or parent-government fiscal stress. The Rate Constraint and Revenue Fragility score families specifically measure these pressures where data is available from public financial disclosures.
What does the MISI score mean for Philadelphia, PA?
The MISI score (50.6/100) is a composite measure of structural risk across five families: Operational Stress, Capex Pressure, Revenue Fragility, Rate Constraint, and Governance Risk. The headline remains a blended structural stress composite rather than a pure physical-condition index. The current methodology also downweights factors that are nearly universal or very rare in the frozen national reference population, so one common contextual factor does not dominate the headline by itself. Higher scores indicate more structural stress. It is deterministic and source-backed, not a credit rating.