MAMMOTH SPRING WATERWORKS

MAMMOTH SPRING, AR · ~1,777 people served

Check your exact address → MAMMOTH SPRING overview

100

Excellent

PurityRadar safety score

PWSID

AR0000206

State

Arkansas

City

MAMMOTH SPRING

Population served

1,777

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 Aug 2022. Official EPA record →

Reporting · Lead & Copper Rule began May 2022 Resolved

Monitoring & reporting · Total coliform began Aug 2015 Resolved

Monitoring & reporting · Total coliform began Jun 2014 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2011 Resolved

Monitoring & reporting · Total coliform began Jul 2007 Resolved

Monitoring & reporting · Total coliform began May 2002 Resolved

Recent enforcement actions

State action · SIF Aug 2022
State action · SOX Aug 2022
State action · SOX Sep 2016
State action · SIF Nov 2015
State action · SOX Nov 2015
State action · SIE Oct 2015
State action · SOX Oct 2014
State action · SIF Sep 2014

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

Copper

1 station · latest Nov 2024

0.572 · max 0.709 ug/L · 3

Fluoride

1 station · latest Dec 2023

0.105 · max 0.11 mg/L · 2

Lead

1 station · latest Nov 2024

0.598 · max 0.685 ug/L · 2

Manganese

1 station · latest Nov 2024

0.0263 · max 0.0263 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 AR0000206 — 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.