SUBURBAN WATER SYSTEMS-SAN JOSE

COVINA, CA · ~168,843 people served

Check your exact address → COVINA overview

100

Excellent

PurityRadar safety score

PWSID

CA1910205

State

California

City

COVINA

Population served

168,843

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

Latest detections from EPA’s UCMR5 monitoring (through Jan 2025). Levels in parts per trillion (ppt).

Lithium

54,000 ppt

limit —

No federal limit

PFBA

6.2 ppt

limit —

No federal limit

PFBS

3.6 ppt

limit —

No federal limit

PFPeA

3.5 ppt

limit —

No federal limit

PFHxA

3.3 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2022. Official EPA record →

Monitoring · Lead & Copper Rule began Apr 2022 Resolved

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

Max contaminant level (MCL) · Total coliform health-based began Dec 1992 Resolved

Recent enforcement actions

State action · SFL Jul 2022
State action · SOX May 2022
EPA/federal action · EOX Mar 2000
EPA/federal action · EOX Dec 1993
State action · SFL Jul 1993
State action · SOX Jul 1993
EPA/federal action · EFJ May 1993
State action · SOX Feb 1993

This profile is built from EPA public records for system CA1910205 — 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.