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Water system · PWSID CA3610039

SAN BERNARDINO CITY

SAN BERNARDINO, CA · ~214,665 people served

Check your exact address → SAN BERNARDINO overview
100
Excellent
PurityRadar safety score

PWSID

CA3610039

State

California

City

SAN BERNARDINO

Population served

214,665

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 Oct 2024). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

4 ppt

limit 10 ppt

Below EPA limit

Lithium

9,110 ppt

limit —

No federal limit

PFBS

4.4 ppt

limit —

No federal limit

PFHxA

4 ppt

limit —

No federal limit

PFPeA

3.4 ppt

limit —

No federal limit

Violations & enforcement

No violations are on record for this system in EPA’s SDWIS/ECHO data.

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

3 stations · latest May 2022

2.49 · max 7.86 mg/l as N · 6

Arsenic

3 stations · latest May 2022

1.4 · max 3.3 ug/l · 3

Fluoride

3 stations · latest May 2022

0.39 · max 0.6 mg/l · 3

Uranium

3 stations · latest May 2022

19 · max 24.7 ug/l · 3

Manganese

2 stations · latest May 2022

0.52 · max 0.54 ug/l · 2

Copper

1 station · latest May 2022

5 · max 5 ug/l · 1

Lead

1 station · latest May 2022

0.338 · max 0.338 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 CA3610039 — 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.