EAST BOULDER COUNTY WD

BOULDER, CO · ~300 people served

Check your exact address → BOULDER overview

100

Excellent

PurityRadar safety score

PWSID

CO0107236

State

Colorado

City

BOULDER

Population served

300

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

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 Sep 2025. Official EPA record →

Other · Lead & Copper Rule began Jun 2025 Resolved

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

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

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2015 Resolved

Monitoring & reporting · Total coliform began May 2010 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2010 Resolved

Recent enforcement actions

State action · SOX Sep 2025
State action · SIF Jul 2025
State action · SIA Jun 2025
State action · SIE Jun 2025
State action · SIF Jun 2024
State action · SOX May 2024
State action · SIA Apr 2024
State action · SIE Apr 2024

This profile is built from EPA public records for system CO0107236 — 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.