JEFFERSON COUNTY PWSD 7

HILLSBORO, MO · ~6,100 people served

Check your exact address → HILLSBORO overview

100

Excellent

PurityRadar safety score

PWSID

MO6024299

State

Missouri

City

HILLSBORO

Population served

6,100

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

Latest detections from EPA’s UCMR5 monitoring (through Feb 2023). Levels in parts per trillion (ppt).

Lithium

10,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Resolved

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 2011 Resolved

Recent enforcement actions

State action · SOX Nov 2025
State action · SFJ Nov 2025
State action · SOX Nov 2025
State action · SIA Mar 2025
State action · SIE Mar 2025
State action · SIA Dec 2017
State action · SOX Jan 2014
State action · SIF Aug 2011

This profile is built from EPA public records for system MO6024299 — 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.