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Water system · PWSID 084690532

MISSION WATER SYSTEM

MISSION, SD · ~1,500 people served

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

PWSID

084690532

State

South Dakota

City

MISSION

Population served

1,500

Primary source

SWP

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

Latest detections from EPA’s UCMR5 monitoring (through Dec 2023). Levels in parts per trillion (ppt).

Lithium

64,800 ppt

limit —

No federal limit

Violations & enforcement

14

Violations on record

0

Unaddressed

2

Health-based

12

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 0200 began Sep 2025 Resolved
Monitoring · Lead & Copper Rule began Sep 2025 Resolved
Reporting · Lead & Copper Rule began Mar 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2023 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Sep 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2022 Resolved
Reporting · Lead & Copper Rule began Oct 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved
Monitoring · Lead & Copper Rule began Dec 2018 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2014 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2014 Resolved

Recent enforcement actions

  • State action · SOX Oct 2025
  • State action · SOX Oct 2025
  • State action · SOX Aug 2024
  • State action · SOX Aug 2024
  • State action · SOX Mar 2024
  • State action · SOX Dec 2023
  • State action · SOX Oct 2021
  • State action · SOX Jan 2019

This profile is built from EPA public records for system 084690532 — 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.