SUBURBAN WATER SYSTEMS-COVINA KNOLLS

COVINA, CA · ~1,437 people served

Check your exact address → COVINA overview

100

Excellent

PurityRadar safety score

PWSID

CA1910200

State

California

City

COVINA

Population served

1,437

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 May 1996. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Mar 1996 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jun 1993 Resolved

Recent enforcement actions

State action · SOX May 1996
State action · SFJ May 1996
State action · SFL Jul 1993
State action · SOX Jul 1993

This profile is built from EPA public records for system CA1910200 — 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.