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Water system · PWSID OK2005813

MIAMI

MIAMI, OK · ~13,704 people served

Check your exact address → MIAMI overview
100
Excellent
PurityRadar safety score

PWSID

OK2005813

State

Oklahoma

City

MIAMI

Population served

13,704

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 Jul 2025). Levels in parts per trillion (ppt).

Lithium

32,000 ppt

limit —

No federal limit

Violations & enforcement

93

Violations on record

0

Unaddressed

3

Health-based

126

Enforcement actions

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

Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2022 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2022 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Other · EPA contaminant 7000 began Oct 2020 Resolved
Other · EPA contaminant 7000 began Dec 2019 Resolved
Monitoring & reporting · EPA contaminant 3014 began Oct 2019 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2019 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2019 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2019 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2019 Resolved

Recent enforcement actions

  • State action · SOX Jun 2025
  • State action · SIF May 2025
  • State action · SIA Nov 2024
  • State action · SIE Nov 2024
  • State action · SIF Mar 2024
  • State action · SIF Mar 2024
  • State action · SOX May 2023
  • State action · SIF Apr 2023

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

Lead

6 stations · latest Sep 2025

0.0015 · max 0.0126 mg/L · 129

Arsenic

6 stations · latest Sep 2025

0.002 · max 0.0084 mg/L · 66

Nitrate

2 stations · latest Apr 2023

0.18 · max 1.55 mg/L · 39

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 OK2005813 — 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.