What is the Munimetric score for Aquarion Water Co of Ct-Greenwich System, CT?

The current Munimetric Infrastructure Stress Index (MISI) score for Aquarion Water Co of Ct-Greenwich System, CT is 38.8 out of 100, placing this system in the watch 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 Aquarion Water Co of Ct-Greenwich System, CT show signs of drinking-water infrastructure stress?

Munimetric monitors structural stress indicators for Aquarion Water Co of Ct-Greenwich System, CT 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 Aquarion Water Co of Ct-Greenwich System, CT?

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 Aquarion Water Co of Ct-Greenwich System, CT 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 Aquarion Water Co of Ct-Greenwich System, CT?

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 Aquarion Water Co of Ct-Greenwich System, CT?

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 Aquarion Water Co of Ct-Greenwich System, CT?

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 Aquarion Water Co of Ct-Greenwich System, CT?

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 Aquarion Water Co of Ct-Greenwich System, CT?

The MISI score (38.8/100) 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.

Munimetric Water System Profile

Aquarion Water Co of Ct-Greenwich System, CT

Name: Aquarion Water Co of Ct-Greenwich System, CT Water System Stress Profile
Creator: Munimetric
License: https://munimetric.com/terms

Drinking Water Infrastructure Profile

Munimetric drinking water infrastructure profile for Aquarion Water Co of Ct-Greenwich System, CT, Connecticut, including MISI stress score, active signals, fiscal pressure, and peer comparison. This profile highlights what is happening and why it matters using water-system, fiscal, capital, and signal context.

Aquarion Water Co of Ct-Greenwich System, CT has a MISI infrastructure stress score of 38.8/100 in the Watch band as of 2026-05-19. Public records show surface-water sourcing, PFAS monitoring context, lead and copper compliance context and approximately 53,297 residents served. Updated May 2026.

WatchScore date May 19, 2026Methodology v0.1.2

State context

Current market shown in covered state context. Tile size reflects population served; color reflects stress band.

38.8Headline composite

WatchBand

76%Confidence

~53KPop. served

P86Peer percentile

7Active signals

Current headline composite

Component of current headline composite

Infrastructure Stress22.3 / 100

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

Socioeconomic Stress16.5 / 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.

38.8/100 headline compositeWatch76% confidencedrinking_water::community_water_system::25k_to_100k::surface_water~53K 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 presentCTPWSID CT0570011.

Recent violations

5 records4 MRStage 1 Disinfectants and Disinfection Byproducts Rule, Lead and Copper Rule +1

Enforcement records

5 recordsStored public enforcement rows.

PFAS monitoring records

21 detections0.01Stored PFAS monitoring records list 360 samples and 21 detections.

Lead/copper monitoring records

Records stored65 samplesStored lead/copper records list 0 open LCR violations and 0 action-level records.

Source / supply context

Surface waterIdentity53,297 served; Dec 31, 2025.

Not a real-time tap-water condition determination. Use official utility or state program records for current advisories.

Official records

Public drinking-water profileEPA ECHO / SDWIS: Federal public system profile and compliance summary.
Enforcement historyEPA ECHO: Federal compliance and enforcement detail for this drinking-water system.

Source notes

Methodology/source notesDisplayed from stored public drinking-water records and official program references. This layer does not change MISI.
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.
Methodology/source notesOfficial annual consumer-confidence report links are not currently stored in this profile layer.

Executive context

What the Data Suggests

Aquarion Water Co of Ct-Greenwich System, CT's drinking-water system serves about 53,297 residents, making it a mid-size system within the coverage universe. At the latest reading, Munimetric flags the system as showing early but meaningful signs of structural stress.

The score is being driven mainly by Rate Constraint, which is running high 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.

5 active stress signals are attached to this system, including 2 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 · 25k–100k · Surface, this system ranks around the 86th percentile on measured stress, placing it among the more stressed systems in its peer group.

Recent score history has been relatively steady, consistent with the system's overall profile.

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.

Peer Position

Where Aquarion Water Co of Ct-Greenwich System sits within its peer cohort.

AvailableMissing

Score History

Latest

38.8

Trend

+18.8

Observations

Structural Indicators

Operational Stress5.9 / 20.0

Operational Stress totals 5.929 points, led by compliance escalation.

Capex Pressure14.0 / 20.0

Capex Pressure totals 13.992 points, led by lead & copper rule risk.

Revenue Fragility0.0 / 20.0

Revenue Fragility totals 0.000 points with no triggered factors.

Rate Constraint16.5 / 20.0

Rate Constraint totals 16.498 points, led by income erosion.

Governance Risk2.4 / 20.0

Governance Risk totals 2.419 points, led by rapid score deterioration.

Stress movement

Diagnostics

Diagnostics & Movement

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

Confidence

76%

Confidence is mainly capped by missing factor coverage.

Factor coverage

Complete

All tracked confidence factors are currently available.

Disclosure freshness

Not available

No attached disclosure document has a usable reference date. Some profile sections are selectively summarized because confidence is currently medium.

Latest movement

flat 0.0

Compared with May 17, 2026.

Last material movement

-4.2

Recorded Apr 26, 2026.

History

41 observations stored

Latest stored observation May 19, 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 missing factor coverage.

Missing factor coverage

No factor gaps are recorded on the latest stored score.

Disclosure freshness diagnostics

0 attached local documents · 0 structured facts

No attached disclosure document has a usable reference date. Some profile sections are selectively summarized because confidence is currently medium.

Latest reference Not available · stale after Not available