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Water system · PWSID CA3900649

GLENWOOD MOBILE HOME PARK

SAN RAMON, CA · ~100 people served

Check your exact address → SAN RAMON overview
85
Excellent
PurityRadar safety score

PWSID

CA3900649

State

California

City

SAN RAMON

Population served

100

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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

41

Violations on record

2

Unaddressed

25

Health-based

32

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2025. Official EPA record →

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Other · EPA contaminant 7000 began Jul 2025 Addressed
Monitoring & reporting · Lead & Copper Rule began Oct 2021 Resolved
Max contaminant level (MCL) · Nitrate health-based began Oct 2016 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Thallium health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Thallium health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Nitrate health-based began Apr 2015 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2014 Resolved
Max contaminant level (MCL) · Nitrate health-based began Oct 2014 Resolved

Recent enforcement actions

  • State action · SFL Aug 2025
  • State action · SOX Oct 2022
  • State action · SFL Oct 2021
  • State action · SOX Mar 2018
  • State action · SOX May 2017
  • State action · SIE Feb 2015
  • State action · SOX Feb 2015
  • State action · SOX Nov 2014

This profile is built from EPA public records for system CA3900649 — 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.