OLMSTED

OLMSTED, IL · ~435 people served

Check your exact address → OLMSTED overview

100

Excellent

PurityRadar safety score

PWSID

IL1530250

State

Illinois

City

OLMSTED

Population served

435

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 Jun 2022. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2020 Resolved

Monitoring · Lead & Copper Rule began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2020 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Aug 2017 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Aug 2017 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2017 Resolved

Monitoring & reporting · Total coliform began Sep 2005 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 2005 Resolved

Monitoring & reporting · Total coliform began Jul 2005 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2005 Resolved

Recent enforcement actions

State action · SIF Jun 2022
State action · SOX Apr 2022
State action · SIA Jan 2022
State action · SIE Jan 2022
State action · SOX Aug 2021
State action · SIF Jun 2021
State action · SIF Jun 2021
State action · SOX Nov 2020

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

Manganese

1 station · latest Nov 2024

27 · max 360 ug/L · 56

Copper

1 station · latest Nov 2024

1.52 · max 6.67 ug/L · 48

Arsenic

1 station · latest Nov 2024

1.25 · max 3.13 ug/L · 30

Lead

1 station · latest Mar 2024

2.69 · max 5.83 ug/L · 13

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 IL1530250 — 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.