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Water system · PWSID CA4010019

TEMPLETON CSD

TEMPLETON, CA · ~8,011 people served

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

PWSID

CA4010019

State

California

City

TEMPLETON

Population served

8,011

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

PFHxS

Perfluorohexanesulfonic acid

3.2 ppt

limit 10 ppt

Below EPA limit

Lithium

23,600 ppt

limit —

No federal limit

PFBS

3.3 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

1

Health-based

4

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2019. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2019 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2008 Resolved

Recent enforcement actions

  • State action · SOX Dec 2019
  • State action · SFL Dec 2019
  • State action · SOX Dec 2008
  • State action · SFL Dec 2008

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

Arsenic

1 station · latest Feb 2023

0.89 · max 0.89 ug/l · 1

Copper

1 station · latest Feb 2023

1.8 · max 1.8 ug/l · 1

Fluoride

1 station · latest Feb 2023

0.22 · max 0.22 mg/l · 1

Manganese

1 station · latest Feb 2023

13 · max 13 ug/l · 1

Uranium

1 station · latest Feb 2023

5.48 · max 5.48 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 CA4010019 — 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.