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Water system · PWSID CA5100112

TIERRA BUENA MHP #1

100
Excellent
PurityRadar safety score

PWSID

CA5100112

State

California

City

ZAMORA

Population served

50

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

7

Violations on record

0

Unaddressed

2

Health-based

12

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2023. Official EPA record →

Other · EPA contaminant 0700 began Oct 2018 Resolved
Monitoring & reporting · Total coliform began Feb 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2002 Resolved
Monitoring & reporting · Lead & Copper Rule began Jun 1999 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 1996 Resolved
Monitoring & reporting · Nitrate began Jan 1996 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX Feb 2023
  • State action · SFJ May 2019
  • State action · SOX Feb 2018
  • State action · SOX Mar 2004
  • State action · SIA Mar 2004
  • EPA/federal action · EOX Dec 2003
  • State action · SFJ Oct 2002
  • State action · SIA Sep 2001

This profile is built from EPA public records for system CA5100112 — 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.