MESA WATER DEPARTMENT

Mesa, WA · ~495 people served

Check your exact address → Mesa overview

100

Excellent

PurityRadar safety score

PWSID

WA5354100

State

Washington

City

Mesa

Population served

495

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Monitoring & reporting · Nitrate began Jan 2023 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2019 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2019 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2016 Resolved

Monitoring & reporting · EPA contaminant 2015 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2020 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2065 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2010 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2042 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2050 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2037 began Jan 2014 Resolved

Recent enforcement actions

State action · SOX Dec 2024
State action · SOX Jun 2024
State action · SOX Jun 2024
State action · SOX Jul 2023
State action · SOX Sep 2022
State action · SOX Sep 2022
State action · SOX Sep 2015
State action · SOX Sep 2015

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

Fluoride

1 station · latest Jul 2020

0.16 · max 0.16 mg/L · 1

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 WA5354100 — 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.