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Water system · PWSID CA4810005

SUISUN-SOLANO WATER AUTHORITY

VACAVILLE, CA · ~29,105 people served

Check your exact address → VACAVILLE overview
85
Excellent
PurityRadar safety score

PWSID

CA4810005

State

California

City

VACAVILLE

Population served

29,105

Primary source

Surface water

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

13

Violations on record

2

Unaddressed

12

Health-based

5

Enforcement actions

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

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Unaddressed
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2023 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2023 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2023 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2023 Resolved

Recent enforcement actions

  • State action · SOX Oct 2024
  • State action · SFL Sep 2024
  • State action · SFL Nov 2023
  • State action · SOX Feb 2000
  • State action · SFL Feb 2000

This profile is built from EPA public records for system CA4810005 — 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.