What is the Munimetric score for Mountlake Terrace, City of, WA?

The current Munimetric Infrastructure Stress Index (MISI) score for Mountlake Terrace, City of, WA is 22.2 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 Mountlake Terrace, City of, WA show signs of drinking-water infrastructure stress?

Munimetric monitors structural stress indicators for Mountlake Terrace, City of, WA 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 Mountlake Terrace, City of, WA?

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 Mountlake Terrace, City of, WA 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 Mountlake Terrace, City of, WA?

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 Mountlake Terrace, City of, WA?

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 Mountlake Terrace, City of, WA?

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 Mountlake Terrace, City of, WA?

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 Mountlake Terrace, City of, WA?

The MISI score (22.2/100) 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

Mountlake Terrace, City of, WA

Name: Mountlake Terrace, City of, WA Water System Stress Profile
Creator: Munimetric
License: https://munimetric.com/terms

Drinking Water Infrastructure Profile

Munimetric drinking water infrastructure profile for Mountlake Terrace, City of, WA, Washington, 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.

Mountlake Terrace, City of, WA has a MISI infrastructure stress score of 22.2/100 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 26,402 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.

22.2Headline composite

WatchBand

93%Confidence

~26KPop. served

P27Peer percentile

5Active signals

Current headline composite

Component of current headline composite

Infrastructure Stress18.6 / 100

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

Socioeconomic Stress3.5 / 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.

22.2/100 headline compositeWatch93% confidencedrinking_water::community_water_system::25k_to_100k::surface_water~26K 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 presentWAPWSID WA5357250.

Recent violations

12 records12 MRConsumer Confidence Rule, Stage 2 Disinfectants and Disinfection Byproducts Rule +1

Enforcement records

12 recordsStored public enforcement rows.

PFAS monitoring records

No listed detectionsUCMRStored PFAS monitoring records list 119 samples and 0 detections.

Lead/copper monitoring records

Not storedNo lead/copper monitoring summary is stored for this system; missing summaries remain unknown.

Source / supply context

Surface waterIdentity26,402 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

As a community water provider for roughly 26,402 residents, Mountlake Terrace, City of, WA falls into the smaller tier of scored systems. At the latest reading, Munimetric flags the system as showing early but meaningful signs of structural stress.

The score is being driven mainly by Operational Stress, with Capex Pressure adding further pressure. The pressure is distributed rather than concentrated in a single dimension.

4 active stress signals are attached to this system, including one at high severity. The breadth of active signals, even without concentrated high severity, suggests pressure across more than one dimension.

Within Community · 25k–100k · Surface, this system ranks around the 27th percentile on measured stress, placing it below typical peer-group stress levels.

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 Mountlake Terrace, City of sits within its peer cohort.

AvailableMissing

Score History

Latest

22.2

Trend

+18.2

Observations

Structural Indicators

Operational Stress11.2 / 20.0

Operational Stress totals 11.151 points, led by climate hazard exposure.

Capex Pressure7.5 / 20.0

Capex Pressure totals 7.492 points, led by infrastructure capital gap.

Revenue Fragility3.5 / 20.0

Revenue Fragility totals 3.520 points, led by housing market weakness.

Rate Constraint0.0 / 20.0

Rate Constraint totals 0.000 points with no triggered factors.

Governance Risk0.0 / 20.0

Governance Risk totals 0.000 points with no triggered factors.

Stress movement

Diagnostics

Diagnostics & Movement

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

Confidence

93%

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

-1.8

Recorded Apr 26, 2026.

History

46 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