CITY OF SANTA MARIA UTILITIES DEPARTMENT

SANTA MARIA, CA · ~109,477 people served

Check your exact address → SANTA MARIA overview

100

Excellent

PurityRadar safety score

PWSID

CA4210011

State

California

City

SANTA MARIA

Population served

109,477

Primary source

SWP

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

Lithium

12,900 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2017. Official EPA record →

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

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

Monitoring & reporting · EPA contaminant 3014 began Sep 2014 Resolved

Monitoring & reporting · Total coliform began Aug 2014 Resolved

Recent enforcement actions

State action · SOX Apr 2017
State action · SOX Apr 2017
State action · SFL Jan 2017
State action · SFL Mar 2015
State action · SOX Mar 2015
State action · SOX Sep 2014
State action · SOX Sep 2014
EPA/federal action · EOX Mar 2000

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 Jul 2021

12.1 · max 12.2 mg/l as N · 4

Fluoride

1 station · latest Jul 2021

0.22 · max 0.23 mg/l · 2

Manganese

1 station · latest Jul 2020

0.49 · max 0.49 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 CA4210011 — 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.