Yes — Pomona - City, Water Dept., CA's 2024 Consumer Confidence Report lists Gross Beta Particle Activity at 1.5408571428571427 PCI/L. Pomona - City, Water Dept., CA's 2024 Gross Beta Particle Activity measurement is below the federal limit of 50 PCI/L (MCL).

+What's the federal limit for Gross Beta Particle Activity in drinking water?

The federal MCL for Gross Beta Particle Activity is 50 PCI/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.

+What is Gross Beta Particle Activity?

Gross beta particle activity — a combined measure of beta-emitting radioactive substances. Long-term exposure above the federal screening level increases cancer risk.

+Where does this Gross Beta Particle Activity measurement come from?

This page reproduces the Gross Beta Particle Activity entry from the 2024 Consumer Confidence Report published by the Pomona - City, Water Dept., CA water utility — the annual drinking-water report every U.S. utility is required by federal law to publish. The original source document is archived at /water/ca/pomona-city-water-dept/2024/source.

Full report

All Pomona - City, Water Dept., CA water-quality data →

Every contaminant measured in the 2024 report.

Contaminant pillar

Gross Beta Particle Activity across the U.S. →

Every public water system measuring Gross Beta Particle Activity, ranked.