HOLLISTER PWS

HOLLISTER, MO · ~4,426 people served

Check your exact address → HOLLISTER overview

100

Excellent

PurityRadar safety score

PWSID

MO5010374

State

Missouri

City

HOLLISTER

Population served

4,426

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 Jan 2016. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Sep 2013 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Monitoring & reporting · Total coliform began Jan 2011 Resolved

Monitoring & reporting · EPA contaminant 0600 began Apr 2008 Resolved

Monitoring & reporting · Gross alpha began Nov 1992 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 1991 Resolved

Recent enforcement actions

State action · SIA Jan 2016
State action · SOX May 2014
State action · SOX Jan 2014
State action · SIF Oct 2013
State action · SFJ Sep 2013
State action · SIE Sep 2013
State action · SOX Aug 2011
State action · SIF Jun 2011

This profile is built from EPA public records for system MO5010374 — 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.