SULLIVAN MUTUAL WATER

MORGAN HILL, CA · ~53 people served

Check your exact address → MORGAN HILL overview

100

Excellent

PurityRadar safety score

PWSID

CA4300571

State

California

City

MORGAN HILL

Population served

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2024. Official EPA record →

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed

Monitoring · Lead & Copper Rule began Jan 2024 Resolved

Monitoring & reporting · Nitrate began Jan 2021 Resolved

Treatment technique · Lead & Copper Rule health-based began Mar 2018 Resolved

Monitoring & reporting · Total coliform began Jan 2016 Resolved

Max contaminant level (MCL) · Total coliform health-based began Dec 2015 Resolved

Monitoring & reporting · Total coliform began May 2008 Resolved

Monitoring & reporting · Total coliform began Oct 2004 Resolved

Recent enforcement actions

State action · SOX Jun 2024
State action · SFJ Mar 2024
State action · SOX Feb 2022
State action · SFL Jan 2022
State action · SOX Oct 2018
State action · SFL Mar 2018
State action · SOX Feb 2016
State action · SFL Feb 2016

This profile is built from EPA public records for system CA4300571 — 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.