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Water system · PWSID IA5784326

TWIN KNOLLS FOURTH/FIFTH ADDITION

CEDAR RAPIDS, IA · ~90 people served

Check your exact address → CEDAR RAPIDS overview
100
Excellent
PurityRadar safety score

PWSID

IA5784326

State

Iowa

City

CEDAR RAPIDS

Population served

90

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

26

Violations on record

3

Unaddressed

5

Health-based

163

Enforcement actions

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

Other · EPA contaminant 7500 began May 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Dec 2024 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Dec 2018 Unaddressed
Monitoring · Lead & Copper Rule began Jan 2025 Resolved
Other · EPA contaminant 7500 began May 2023 Resolved
Other · EPA contaminant 7500 began Oct 2022 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Aug 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Aug 2022 Resolved
Other · EPA contaminant 7500 began Jul 2022 Resolved
Other · EPA contaminant 7000 began Jul 2022 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2021 Resolved
Other · EPA contaminant 7500 began Apr 2014 Resolved

Recent enforcement actions

  • State action · SIE Aug 2025
  • State action · SFJ Aug 2025
  • State action · SFJ Jun 2025
  • State action · SO6 Jun 2025
  • State action · SIA Jun 2025
  • State action · SOX Feb 2025
  • State action · SFJ Feb 2025
  • State action · SIE Feb 2025

This profile is built from EPA public records for system IA5784326 — 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.