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Water system · PWSID CA4210007

MONTECITO WATER DIST

SANTA BARBARA, CA · ~11,962 people served

Check your exact address → SANTA BARBARA overview
100
Excellent
PurityRadar safety score

PWSID

CA4210007

State

California

City

SANTA BARBARA

Population served

11,962

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

Lithium

56,000 ppt

limit —

No federal limit

Violations & enforcement

3

Violations on record

0

Unaddressed

3

Health-based

8

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2015. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2015 Resolved
Treatment technique · EPA contaminant 0200 health-based began Mar 1997 Resolved
Treatment technique · EPA contaminant 0200 health-based began Jul 1993 Resolved

Recent enforcement actions

  • State action · SOX Jul 2015
  • State action · SFL Jun 2015
  • EPA/federal action · EOX Mar 2000
  • State action · SFJ Apr 1997
  • EPA/federal action · EOX Dec 1993
  • EPA/federal action · EFJ May 1993
  • State action · SOX Jan 1991
  • State action · SOX Jan 1991

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 Feb 2020

1.75 · max 2.1 ug/L · 4

Manganese

2 stations · latest Apr 2021

167 · max 273 ug/l · 4

Arsenic

2 stations · latest Jan 2020

1.04 · max 1.15 ug/L · 3

Fluoride

2 stations · latest Apr 2021

1.53 · max 2.52 mg/l · 3

Nitrate

1 station · latest Jan 2020

0.16 · max 0.16 mg/L · 3

Lead

2 stations · latest Apr 2021

0.525 · max 0.705 ug/l · 2

Uranium

1 station · latest Apr 2021

0.284 · max 0.284 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 CA4210007 — 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.