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Water system · PWSID AZ0408018

KATHERINE RESORTS WATER COMPANY

LA JOLLA, CA · ~58 people served

Check your exact address → LA JOLLA overview
100
Excellent
PurityRadar safety score

PWSID

AZ0408018

State

California

City

LA JOLLA

Population served

58

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

Latest detections from EPA’s UCMR5 monitoring (through Oct 2023). Levels in parts per trillion (ppt).

Lithium

160,000 ppt

limit —

No federal limit

Violations & enforcement

149

Violations on record

2

Unaddressed

3

Health-based

170

Enforcement actions

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

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Jan 2025 Unaddressed
Monitoring & reporting · EPA contaminant 0999 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2025 Resolved
Other · EPA contaminant 7500 began Oct 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2024 Resolved
Other · EPA contaminant 7500 began Aug 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jun 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began May 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2023 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2023 Resolved

Recent enforcement actions

  • State action · SIA Oct 2025
  • State action · SOX Oct 2025
  • State action · SOX Oct 2025
  • State action · SOX Oct 2025
  • State action · SIA Jul 2025
  • State action · SIA Mar 2025
  • State action · SIA Feb 2025
  • State action · SIA Feb 2025

This profile is built from EPA public records for system AZ0408018 — 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.