What is the Munimetric score for Charleston Water System (1010001), SC?

The current Munimetric Infrastructure Stress Index (MISI) score for Charleston Water System (1010001), SC is 36.6 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 Charleston Water System (1010001), SC show signs of drinking-water infrastructure stress?

Munimetric monitors structural stress indicators for Charleston Water System (1010001), SC 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 Charleston Water System (1010001), SC?

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 Charleston Water System (1010001), SC 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 Charleston Water System (1010001), SC?

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 Charleston Water System (1010001), SC?

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 Charleston Water System (1010001), SC?

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 Charleston Water System (1010001), SC?

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 Charleston Water System (1010001), SC?

The MISI score (36.6/100) 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.

Munimetric Water System Profile

Charleston Water System (1010001), SC

Name: Charleston Water System (1010001), SC Water System Stress Profile
Creator: Munimetric
License: https://munimetric.com/terms

Drinking Water Infrastructure Profile

Charleston Water System (1010001), SC, South Carolina — Munimetric water system profile with MISI stress score, active compliance signals, infrastructure context, and fiscal pressure indicators. This profile highlights what is happening and why it matters using water-system, fiscal, capital, and signal context.

Charleston Water System (1010001), SC has a MISI infrastructure stress score of 36.6/100 in the Watch band as of 2026-05-28. Public records show surface-water sourcing, PFAS monitoring context, lead and copper compliance context and approximately 327,422 residents served. Updated May 2026.

WatchScore date May 28, 2026Methodology v0.1.2

State context

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

36.6Headline composite

WatchBand

96%Confidence

~327KPop. served

P60Peer percentile

10Active signals

Current headline composite

Component of current headline composite

Infrastructure Stress31.2 / 100

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

Socioeconomic Stress0.0 / 100

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

Observability Stress5.5 / 100

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

36.6/100 headline compositeWatch96% confidencedrinking_water::community_water_system::250k_plus::surface_water~327K 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 presentSCPWSID SC1010001.

Recent violations

30 records18 MRTotal Coliform Rule, Lead and Copper Rule +3

Enforcement records

18 recordsStored public enforcement rows.

PFAS monitoring records

15 detections0.01Stored PFAS monitoring records list 90 samples and 15 detections.

Lead/copper monitoring records

Records stored18 samplesStored lead/copper records list 0 open LCR violations and 0 action-level records.

Source / supply context

Surface waterIdentity327,422 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

Charleston Water System (1010001), SC's public water system serves roughly 327,422 residents, placing it among the larger community systems in this coverage set. At the latest reading, Munimetric flags the system as showing early but meaningful signs of structural stress.

The score is being driven mainly by Capex Pressure, which is at the top of its range in the model, with Operational Stress adding further pressure. In other words, Capex Pressure is doing most of the heavy lifting in the headline score.

6 active stress signals are attached to this system, including 4 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 60th percentile on measured stress, placing it near the middle of the peer group on measured stress.

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 Charleston Water System (1010001) sits within its peer cohort.

AvailableMissing

Score History

Latest

36.6

Trend

+36.6

Observations

Structural Indicators

Operational Stress11.2 / 20.0

Operational Stress totals 11.155 points, led by climate hazard exposure.

Capex Pressure20.0 / 20.0

Capex Pressure totals 20.000 points, led by lead & copper rule risk.

Revenue Fragility0.0 / 20.0

Revenue Fragility totals 0.000 points with no triggered factors.

Rate Constraint0.0 / 20.0

Rate Constraint totals 0.000 points with no triggered factors.

Governance Risk5.5 / 20.0

Governance Risk totals 5.473 points, led by utility data staleness.

Stress movement

Diagnostics

Diagnostics & Movement

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

Confidence

96%

Confidence is mainly capped by document freshness.

Factor coverage

Complete

All tracked confidence factors are currently available.

Disclosure freshness

Not available

No attached disclosure document has a usable reference date.

Latest movement

flat 0.0

Compared with May 26, 2026.

Last material movement

-1.4

Recorded Apr 26, 2026.

History

50 observations stored

Latest stored observation May 28, 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 document freshness.

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.

Latest reference Not available · stale after Not available