SB 466: California Puts Water Agencies First—Leaving Consumers Exposed to Toxic Chromium‑6

In July 2025, California passed Senate Bill 466 (SB 466), which shields public water systems from civil liability (including claims alleging cancer from contaminants like hexavalent chromium, aka chromium‑6) while they are implementing—or awaiting approval of—a state‑approved compliance plan.

Why this law?

Drinking water systems are under pressure to meet California’s strict new maximum contaminant levels (MCLs) for chromium‑6 (10 ppb). Cleaning this up can cost millions for water agencies.

SB 466 provides a temporary legal “pause button” to allow agencies time to upgrade and implement treatment without facing lawsuits during that transition period.

What critics are saying?

Consumer advocates and legal groups argue this law effectively silences residents from seeking justice if they get sick during the delay period, especially impacting disadvantaged communities.

Opponents claim it prioritizes easing implementation costs over protecting public accountability and health.

Summary:

The claim in the graphic is accurate, referring to SB 466.

The law does not grant permanent immunity—it’s conditional and temporary, and only applies while a compliance plan is pending.

A PLAN??? How about public health???

Furthermore, peculiarly SB 466 addresses only hexavalent chromium, not specifically all other countless cancer-causing chemicals.

What you can do?

• Check your utility’s Consumer Confidence Report (CCR) to see if chromium‑6 levels were reported.

• Consider independent water testing or using certified filters that reduce chromium‑6 and PFAS if you’re in an area with contamination.

• Stay informed about further legislation—California is also advancing stricter rules targeting PFAS ("forever chemicals") in drinking water.