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Water system · PWSID AR0000640

JOHNSON TOWNSHIP WATER ASSOC

STRONG, AR · ~600 people served

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

PWSID

AR0000640

State

Arkansas

City

STRONG

Population served

600

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

23

Violations on record

1

Unaddressed

9

Health-based

62

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2022. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Other · EPA contaminant 7500 began Sep 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2021 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2021 Resolved
Other · EPA contaminant 7000 began Jul 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2019 Resolved
Other · EPA contaminant 7000 began Jul 2019 Resolved
Other · EPA contaminant 7500 began Jun 2019 Resolved
Other · EPA contaminant 7500 began Mar 2019 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2019 Resolved
Monitoring · Lead & Copper Rule began Jul 2017 Resolved
Monitoring · Lead & Copper Rule began Oct 2016 Resolved

Recent enforcement actions

  • State action · SIF Dec 2022
  • State action · SIF Dec 2022
  • State action · SOX Nov 2022
  • State action · SIF Jul 2021
  • State action · SIF Feb 2020
  • State action · SFK Feb 2020
  • State action · SOX Feb 2020
  • State action · SFM Feb 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 2022

0.387 · max 1.05 mg/L · 44

Copper

1 station · latest Nov 2022

0.823 · max 1.72 ug/L · 32

Lead

1 station · latest Sep 2022

0.938 · max 1.6 ug/L · 17

Arsenic

1 station · latest Sep 2022

1.16 · max 1.83 ug/L · 13

Fluoride

1 station · latest Mar 2021

0.1 · max 0.1 mg/L · 1

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 AR0000640 — 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.