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Water system · PWSID CO0162302

GREELEY RV PARK

LOS ALTOS, CA · ~164 people served

Check your exact address → LOS ALTOS overview
100
Excellent
PurityRadar safety score

PWSID

CO0162302

State

California

City

LOS ALTOS

Population served

164

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

23

Violations on record

0

Unaddressed

10

Health-based

64

Enforcement actions

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

Monitoring & reporting · Combined radium-226/228 began Jan 2023 Resolved
Monitoring & reporting · Gross alpha began Jan 2023 Resolved
Max contaminant level (MCL) · Nitrate health-based began Oct 2017 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jul 2017 Resolved
Max contaminant level (MCL) · Nitrate health-based began Apr 2017 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Nitrate health-based began Oct 2016 Resolved
Monitoring & reporting · Nitrate began Jul 2016 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Nitrate health-based began Apr 2016 Resolved
Monitoring & reporting · Nitrate began Apr 2016 Resolved
Monitoring & reporting · Nitrate began Jan 2016 Resolved

Recent enforcement actions

  • State action · SOX May 2023
  • State action · SIA Apr 2023
  • State action · SIE Apr 2023
  • State action · SIE Apr 2023
  • State action · SIA Apr 2023
  • State action · SOX Jul 2018
  • State action · SIE Dec 2017
  • State action · SIA Dec 2017

This profile is built from EPA public records for system CO0162302 — 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.