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Water system · PWSID MO2010029

ARROW ROCK PWS

ARROW ROCK, MO · ~235 people served

Check your exact address → ARROW ROCK overview
100
Excellent
PurityRadar safety score

PWSID

MO2010029

State

Missouri

City

ARROW ROCK

Population served

235

Primary source

GWP

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

41

Violations on record

0

Unaddressed

12

Health-based

116

Enforcement actions

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

Other · EPA contaminant 7500 began Jul 2025 Resolved
Monitoring · Lead & Copper Rule began Apr 2025 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2025 Resolved
Monitoring · Lead & Copper Rule began Nov 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2023 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2023 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2022 Resolved
Monitoring · Lead & Copper Rule began Jun 2021 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2020 Resolved

Recent enforcement actions

  • State action · SIF Nov 2025
  • State action · SOX Nov 2025
  • State action · SOX Jul 2025
  • State action · SIF Jun 2025
  • State action · SIA May 2025
  • State action · SIE May 2025
  • State action · SFJ May 2025
  • State action · SIE May 2025

This profile is built from EPA public records for system MO2010029 — 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.