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Water system · PWSID SD4600433

RANDALL COMMUNITY WATER DISTRICT

LAKE ANDES, SD · ~6,248 people served

Check your exact address → LAKE ANDES overview
100
Excellent
PurityRadar safety score

PWSID

SD4600433

State

South Dakota

City

LAKE ANDES

Population served

6,248

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

Latest detections from EPA’s UCMR5 monitoring (through Oct 2025). Levels in parts per trillion (ppt).

Lithium

53,000 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

0

Health-based

15

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2017. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2016 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2016 Resolved
Other · EPA contaminant 7000 began Jul 2000 Resolved
Monitoring & reporting · Nitrate began Oct 1993 Resolved
Monitoring & reporting · Nitrate began Jan 1993 Resolved

Recent enforcement actions

  • State action · SOX Mar 2017
  • State action · SOX Mar 2017
  • State action · SOX Mar 2017
  • State action · SOX Mar 2017
  • State action · SIE Jan 2017
  • State action · SIE Jan 2017
  • State action · SOX Jul 2000
  • State action · SIA Jul 2000

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

Atrazine

10 stations · latest Oct 2023

41.2 · max 733 ng/l · 28

Arsenic

7 stations · latest Jun 2022

2.7 · max 10.7 ug/l · 14

Manganese

7 stations · latest Jun 2022

2,670 · max 3,670 ug/l · 14

Nitrate

4 stations · latest Oct 2023

0.609 · max 7.46 mg/l as N · 14

Uranium

7 stations · latest Jun 2022

24.7 · max 47.4 ug/l · 12

Fluoride

7 stations · latest Jun 2022

0.36 · max 1.32 mg/l · 11

Lead

3 stations · latest Jun 2022

0.207 · max 0.263 ug/l · 5

Copper

1 station · latest Aug 2020

6 · max 6 ug/L · 2

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 SD4600433 — 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.