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Water system · PWSID CA2710005

CASTROVILLE COMMUNITY SERVICES DISTRICT

CASTROVILLE, CA · ~7,515 people served

Check your exact address → CASTROVILLE overview
100
Excellent
PurityRadar safety score

PWSID

CA2710005

State

California

City

CASTROVILLE

Population served

7,515

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 Nov 2025). Levels in parts per trillion (ppt).

Lithium

24,900 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

2

Health-based

11

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2011. Official EPA record →

Monitoring & reporting · Total coliform began Nov 2010 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2005 Resolved
Monitoring & reporting · Total coliform began Nov 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 1994 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 1994 Resolved

Recent enforcement actions

  • State action · SFL Jan 2011
  • State action · SOX Dec 2010
  • State action · SOX Jun 2006
  • EPA/federal action · EOX Mar 2000
  • State action · SOX Dec 1996
  • State action · SOX Aug 1994
  • State action · SFJ Aug 1994
  • State action · SOX Mar 1994

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Sep 2020

0.361 · max 0.361 mg/l as N · 2

Arsenic

1 station · latest Sep 2020

2.3 · max 2.3 ug/l · 1

Copper

1 station · latest Sep 2020

1.5 · max 1.5 ug/l · 1

Fluoride

1 station · latest Sep 2020

0.26 · max 0.26 mg/l · 1

Lead

1 station · latest Sep 2020

0.378 · max 0.378 ug/l · 1

Manganese

1 station · latest Sep 2020

1.09 · max 1.09 ug/l · 1

Uranium

1 station · latest Sep 2020

5.45 · max 5.45 ug/l · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system CA2710005 — 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.