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Water system · PWSID CA4010012

HERITAGE RANCH CSD

PASO ROBLES, CA · ~2,956 people served

Check your exact address → PASO ROBLES overview
100
Excellent
PurityRadar safety score

PWSID

CA4010012

State

California

City

PASO ROBLES

Population served

2,956

Primary source

Surface water

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

19

Violations on record

0

Unaddressed

18

Health-based

30

Enforcement actions

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

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2024 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2023 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2023 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2023 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2023 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2023 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2022 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2022 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2022 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2022 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2020 Resolved

Recent enforcement actions

  • State action · SOX Jun 2024
  • State action · SFL Apr 2024
  • State action · SFL Feb 2024
  • State action · SFL Oct 2023
  • State action · SFL Aug 2023
  • State action · SOX Jul 2023
  • State action · SOX Jul 2023
  • State action · SOX Jul 2023

This profile is built from EPA public records for system CA4010012 — 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.