Home/ Directory/ CA/ Oasis Mobile Home Park

Water system · PWSID 090605129

Oasis Mobile Home Park

Thermal, CA · ~1,350 people served

Check your exact address → Thermal overview
70
Good
PurityRadar safety score

PWSID

090605129

State

California

City

Thermal

Population served

1,350

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 70 Jun 18, 2026 · score 70

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

365

Violations on record

2

Unaddressed

36

Health-based

452

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2026. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began Mar 2021 Unaddressed
Treatment technique · EPA contaminant 0700 health-based began Mar 2021 Unaddressed
Reporting · Lead & Copper Rule began May 2024 Resolved
Reporting · Lead & Copper Rule began Feb 2024 Resolved
Reporting · Lead & Copper Rule began Jun 2023 Resolved
Reporting · Lead & Copper Rule began Apr 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2023 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2022 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2022 Resolved
Other · EPA contaminant 7500 began Apr 2022 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2022 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2022 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Jan 2026
  • EPA/federal action · EOX Jun 2024
  • EPA/federal action · EOX Mar 2024
  • EPA/federal action · EOX Jan 2024
  • EPA/federal action · EOX Jan 2024
  • EPA/federal action · EOX Jan 2024
  • EPA/federal action · EOX Sep 2023
  • EPA/federal action · EOX Jul 2023

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Arsenic

1 station · latest Jun 2020

15.1 · max 15.1 ug/l · 1

Fluoride

1 station · latest Jun 2020

0.85 · max 0.85 mg/l · 1

Lead

1 station · latest Jun 2020

0.022 · max 0.022 ug/l · 1

Manganese

1 station · latest Jun 2020

0.44 · max 0.44 ug/l · 1

Uranium

1 station · latest Jun 2020

2.19 · max 2.19 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system 090605129 — 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.