DEER MOUNTAIN SANITARY DISTRICT

LEAD, SD · ~125 people served

Check your exact address → LEAD overview

100

Excellent

PurityRadar safety score

PWSID

SD4600549

State

South Dakota

City

LEAD

Population served

125

Primary source

Surface water

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

252

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2018. Official EPA record →

Monitoring & reporting · Nitrate began Jan 2018 Resolved

Treatment technique · EPA contaminant 0800 health-based began Jun 2015 Resolved

Monitoring & reporting · Nitrate began Jan 2014 Resolved

Other · EPA contaminant 7500 began Apr 2013 Resolved

Other · EPA contaminant 7500 began Mar 2013 Resolved

Monitoring & reporting · EPA contaminant 0300 began Mar 2013 Resolved

Other · EPA contaminant 7500 began Feb 2013 Resolved

Monitoring & reporting · Total coliform began Feb 2013 Resolved

Monitoring & reporting · EPA contaminant 0300 began Feb 2013 Resolved

Other · EPA contaminant 7500 began Jan 2013 Resolved

Monitoring & reporting · EPA contaminant 0300 began Jan 2013 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2013 Resolved

Recent enforcement actions

State action · SOX Apr 2018
State action · SO6 Apr 2018
State action · SOX Jul 2015
State action · SIA Jun 2015
State action · SOX Apr 2014
State action · SIE Apr 2014
State action · SOX Oct 2013
State action · SOX Oct 2013

This profile is built from EPA public records for system SD4600549 — 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.