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Water system · PWSID CA3600196

CSA 70 W-4 PIONEERTOWN

SAN BERNARDINO, CA · ~470 people served

Check your exact address → SAN BERNARDINO overview
100
Excellent
PurityRadar safety score

PWSID

CA3600196

State

California

City

SAN BERNARDINO

Population served

470

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

73

Violations on record

0

Unaddressed

71

Health-based

8

Enforcement actions

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

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2022 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2019 Resolved
Max contaminant level (MCL) · Fluoride health-based began Apr 2019 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Fluoride health-based began Jan 2019 Resolved
Max contaminant level (MCL) · Fluoride health-based began Oct 2018 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2018 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2018 Resolved
Max contaminant level (MCL) · Fluoride health-based began Jul 2018 Resolved
Max contaminant level (MCL) · Fluoride health-based began Apr 2018 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2018 Resolved

Recent enforcement actions

  • State action · SOX Apr 2025
  • State action · SOX Oct 2023
  • State action · SFL Feb 2023
  • State action · SOX Sep 2019
  • EPA/federal action · EFL Jul 2016
  • State action · SFL Aug 2014
  • State action · SFL Aug 2009
  • State action · SFL Jul 2001

This profile is built from EPA public records for system CA3600196 — 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.