RIDDLE, CITY OF

RIDDLE, OR · ~1,224 people served

Check your exact address → RIDDLE overview

100

Excellent

PurityRadar safety score

PWSID

OR4100706

State

Oregon

City

RIDDLE

Population served

1,224

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

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0200 began Sep 2025 Resolved

Monitoring & reporting · EPA contaminant 0300 began Sep 2025 Resolved

Monitoring & reporting · EPA contaminant 0200 began Sep 2025 Resolved

Monitoring & reporting · EPA contaminant 0300 began May 2024 Resolved

Monitoring & reporting · EPA contaminant 0200 began May 2024 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2024 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2024 Resolved

Monitoring & reporting · EPA contaminant 0300 began Nov 2023 Resolved

Monitoring & reporting · EPA contaminant 0200 began Nov 2023 Resolved

Monitoring & reporting · EPA contaminant 0300 began Oct 2023 Resolved

Recent enforcement actions

State action · SOX Nov 2025
State action · SOX Oct 2024
State action · SOX Jul 2024
State action · SOX Jan 2024
State action · SOX Jul 2023
State action · SOX May 2023
State action · SOX Sep 2021
State action · SOX Nov 2020

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

Copper

1 station · latest Dec 2024

0.026 · max 0.026 mg/L · 1

Manganese

1 station · latest Dec 2024

0.333 · max 0.333 mg/L · 1

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 OR4100706 — 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.