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Water system · PWSID CA5610024

CASITAS MUNICIPAL WATER DIST

OAK VIEW, CA · ~11,005 people served

Check your exact address → OAK VIEW overview
100
Excellent
PurityRadar safety score

PWSID

CA5610024

State

California

City

OAK VIEW

Population served

11,005

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

Latest detections from EPA’s UCMR5 monitoring (through Dec 2023). Levels in parts per trillion (ppt).

Lithium

14,000 ppt

limit —

No federal limit

Violations & enforcement

9

Violations on record

0

Unaddressed

7

Health-based

15

Enforcement actions

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

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2023 Resolved
Monitoring · Lead & Copper Rule began Feb 2022 Resolved
Treatment technique · EPA contaminant 0200 health-based began Nov 1994 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jul 1993 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jan 1993 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 1992 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jan 1992 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jan 1992 Resolved

Recent enforcement actions

  • State action · SOX Feb 2024
  • State action · SFL Dec 2023
  • State action · SOX Jul 2022
  • State action · SFL May 2022
  • EPA/federal action · EOX Mar 2000
  • EPA/federal action · EOX Sep 1996
  • State action · SFJ Dec 1994
  • EPA/federal action · EFJ May 1993

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

Copper

3 stations · latest Aug 2021

0.78 · max 1.8 ug/L · 4

Nitrate

1 station · latest Jan 2020

0.86 · max 0.86 mg/L · 3

Arsenic

1 station · latest Mar 2022

0.22 · max 0.22 ug/l · 1

Fluoride

1 station · latest Mar 2022

0.39 · max 0.39 mg/l · 1

Uranium

1 station · latest Mar 2022

3.87 · max 3.87 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 CA5610024 — 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.