MATANUSKA HEIGHTS DUCHESS

CHUGIAK, AK · ~36 people served

Check your exact address → CHUGIAK overview

100

Excellent

PurityRadar safety score

PWSID

AK2227547

State

Alaska

City

CHUGIAK

Population served

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

135

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jan 2023 Resolved

Monitoring · Lead & Copper Rule began Oct 2022 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2976 began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jan 2020 Resolved

Monitoring & reporting · Arsenic began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2969 began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2977 began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2979 began Jan 2020 Resolved

Recent enforcement actions

State action · SIA Sep 2025
State action · SIA Jun 2025
State action · SIB Apr 2025
State action · SIB Sep 2024
State action · SIB Dec 2023
State action · SIB Dec 2023
State action · SIB Oct 2023
State action · SIB Jun 2023

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Arsenic

2 stations · latest May 2023

0 · max 0 ug/L · 2

Nitrate

2 stations · latest May 2023

5.68 · max 6.2 mg/L · 2

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system AK2227547 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.