ROCKY BOY'S RURAL WATER

BOX ELDER, MT · ~2,000 people served

Check your exact address → BOX ELDER overview

100

Excellent

PurityRadar safety score

PWSID

083090075

State

Montana

City

BOX ELDER

Population served

2,000

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 Mar 2022. Official EPA record →

Monitoring & reporting · EPA contaminant 1094 began Oct 2021 Resolved

Monitoring & reporting · EPA contaminant 1094 began Jul 2021 Resolved

Monitoring & reporting · EPA contaminant 1094 began Oct 2017 Resolved

Treatment technique · EPA contaminant 0700 health-based began Jul 2017 Resolved

Monitoring & reporting · EPA contaminant 2033 began Jul 2017 Resolved

Monitoring & reporting · EPA contaminant 2032 began Jul 2017 Resolved

Monitoring & reporting · EPA contaminant 2034 began Jul 2017 Resolved

Monitoring & reporting · EPA contaminant 1094 began Jul 2017 Resolved

Monitoring & reporting · Thallium began Jan 2017 Resolved

Other · EPA contaminant 7000 began Jul 2014 Resolved

Monitoring & reporting · EPA contaminant 2034 began Jan 2014 Resolved

Monitoring & reporting · EPA contaminant 2015 began Jan 2014 Resolved

Recent enforcement actions

State action · SOX Mar 2022
EPA/federal action · EOX Nov 2019
State action · SOX Nov 2019
State action · SOX Nov 2018
State action · SOX Jan 2018
State action · SOX Jan 2018
State action · SOX Dec 2017
State action · SOX Dec 2017

This profile is built from EPA public records for system 083090075 — 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.