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Water system · PWSID CA1910146

SANTA MONICA-CITY, WATER DIVISION

LOS ANGELES, CA · ~89,947 people served

Check your exact address → LOS ANGELES overview
88
Excellent
PurityRadar safety score

PWSID

CA1910146

State

California

City

LOS ANGELES

Population served

89,947

Primary source

SWP

Score history

▼ 12 points — the score moved from 100 to 88 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 88

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

PFOA

Perfluorooctanoic acid

4.6 ppt

limit 4 ppt

Above EPA limit · 1.1×

Lithium

10,500 ppt

limit —

No federal limit

PFPeA

22 ppt

limit —

No federal limit

PFHxA

18 ppt

limit —

No federal limit

PFBA

8.8 ppt

limit —

No federal limit

PFHpA

5 ppt

limit —

No federal limit

PFBS

4.5 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

Manganese

9 stations · latest Jun 2021

55.2 · max 161 ug/l · 10

Nitrate

4 stations · latest Jun 2021

4.96 · max 17.5 mg/l as N · 10

Arsenic

8 stations · latest Jun 2021

1.1 · max 4.4 ug/l · 9

Fluoride

8 stations · latest Jun 2021

0.3 · max 0.41 mg/l · 9

Copper

1 station · latest Jun 2021

6.6 · max 6.6 ug/l · 1

Lead

1 station · latest Jun 2021

0.231 · max 0.231 ug/l · 1

Uranium

1 station · latest Jun 2021

10.8 · max 10.8 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 CA1910146 — 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.