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Claremont · Los Angeles County · tap water report

Claremont tap water quality report.

Claremont tap water: lead 0.0056 mg/L, 0 health-based EPA violations on record for GSWC - Claremont. Plain-English report and a free home water test.

Measured EPA results for GSWC - Claremont

  • Lead (90th percentile): 0.0056 mg/L, the 2024 to 2026 monitoring period (federal action level 0.015 mg/L)

6 measured results on file across every sampling period the EPA publishes.

EPA compliance record

GSWC - Claremont (PWSID CA1910024) has 1 violation in the EPA Safe Drinking Water Information System, 0 of them health-based.

Common questions about Claremont tap water

Is Claremont tap water safe to drink?

GSWC - Claremont has no health-based EPA violations in the last three years. Its measured lead results are listed on this page. What your own plumbing adds is a separate question, which is what the free in-home test answers.

Does Claremont water have lead in it?

GSWC - Claremont's most recent Lead and Copper Rule result, from the 2024 to 2026 monitoring period, measured 0.0056 mg/L of lead at the 90th percentile of tested homes. The federal action level is 0.015 mg/L, so the system result sits under it. Lead usually enters water from a home's own pipes and fixtures, so a single house can differ from the system figure.

Has GSWC - Claremont had EPA violations?

The EPA record lists 1 violation for this system, 0 of them health-based. The rest are monitoring and reporting notes.

Where does Claremont's water come from?

GSWC - Claremont serves about 39,776 people in Los Angeles County and relies mainly on surface water. It is public water system CA1910024.

How do I find out what is in the water inside my home?

Text 949-414-9944 for a free water test. A local FilteredWTR tech screens the water at your own faucet for hardness, chlorine and sediment and explains each reading while you watch. The visit is free, and afterward the decision stays yours.

Free local water test

See your own water in person before spending money on treatment.

A local FilteredWTR tech screens the water at your faucet for hardness, chlorine and sediment and explains each reading while you watch. The visit is free, and afterward the decision stays yours.

Text 949-414-9944 for a free water test

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