Yes — Cal-water Service Co.-chico, CA's 2023 Consumer Confidence Report lists Gross Beta Particle Activity at 10.7 PCI/L. Cal-water Service Co.-chico, CA's 2023 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 2023 Consumer Confidence Report published by the Cal-water Service Co.-chico, 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/cal-water-service-co-chico/2023/source.

Full report

All Cal-water Service Co.-chico, CA water-quality data →

Every contaminant measured in the 2023 report.

Contaminant pillar

Gross Beta Particle Activity across the U.S. →

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