SHASTA CSA - CASTELLA, #3

REDDING, CA · ~333 people served

Check your exact address → REDDING overview

Excellent

PurityRadar safety score

PWSID

CA4500015

State

California

City

REDDING

Population served

333

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Addressed

Reporting · EPA contaminant 5200 began Oct 2024 Addressed

Treatment technique · EPA contaminant 0300 health-based began Apr 2017 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2016 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2016 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 1993 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jan 1992 Resolved

Recent enforcement actions

EPA/federal action · EFL Oct 2025
State action · SFL May 2017
State action · SOX May 2017
State action · SFL Nov 2016
State action · SOX Oct 2016
EPA/federal action · EOX Dec 2003
State action · SFK Jun 1994
EPA/federal action · EOX Dec 1992

This profile is built from EPA public records for system CA4500015 — 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.