BESTGEN ADDITION WATER COMPANY

PIEDMONT, SD · ~73 people served

Check your exact address → PIEDMONT overview

100

Excellent

PurityRadar safety score

PWSID

SD4600387

State

South Dakota

City

PIEDMONT

Population served

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 Apr 2021. Official EPA record →

Max contaminant level (MCL) · Nitrate health-based began Oct 2020 Resolved

Max contaminant level (MCL) · Nitrate health-based began Jan 2020 Resolved

Treatment technique · EPA contaminant 0400 health-based began Feb 2017 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2013 Resolved

Treatment technique · EPA contaminant 0400 health-based began Feb 2010 Resolved

Other · EPA contaminant 7000 began Jul 2001 Resolved

Monitoring & reporting · Nitrate began Jan 1993 Resolved

Recent enforcement actions

State action · SOX Apr 2021
State action · SOX Apr 2021
State action · SIF Nov 2020
State action · SIE Nov 2020
State action · SIF Mar 2020
State action · SIE Mar 2020
State action · SOX Jun 2017
State action · SIA Mar 2017

This profile is built from EPA public records for system SD4600387 — 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.