CITY OF BUENA PARK

BUENA PARK, CA · ~81,998 people served

Check your exact address → BUENA PARK overview

Good

PurityRadar safety score

PWSID

CA3010003

State

California

City

BUENA PARK

Population served

81,998

Primary source

SWP

Score history

▼ 17 points — the score moved from 100 to 83 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 83

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 Jul 2024). Levels in parts per trillion (ppt).

PFOS

Perfluorooctanesulfonic acid

5.4 ppt

limit 4 ppt

Above EPA limit · 1.4×

PFHxS

Perfluorohexanesulfonic acid

3.5 ppt

limit 10 ppt

Below EPA limit

Lithium

10,047 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2008. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Dec 2007 Resolved

Monitoring & reporting · Total coliform began Sep 2006 Resolved

Monitoring & reporting · Total coliform began Jun 2004 Resolved

Other · EPA contaminant 7000 began Jan 2004 Resolved

Recent enforcement actions

State action · SOX Feb 2008
State action · SFL Feb 2008
State action · SOX Jan 2007
State action · SOX Nov 2006
State action · SFJ Apr 2006
State action · SOX Nov 2004
State action · SIA Nov 2004
EPA/federal action · EOX Mar 2000

This profile is built from EPA public records for system CA3010003 — 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.