Chromium in Drinking Water: Return of the Chromium-6 MCL 041426-10

Apr 14 - Apr 14, 2026

Location TBD Online

Environmental Services

Free Event FREE

Training Details

Date & Time

April 14 - April 14, 2026
(GMT-08:00) Pacific Time (US & Canada)

Location

Online Training

Department

Environmental Services

Training Format

Online

Cost

Free of Charge

Registration Status

✓ Open for Registration

About This Training

Chromium in drinking water has been regulated since 1977, but hexavalent chromium, more commonly known as chromium-6, has had a turbulent regulatory history. In 2014 chromium-6, due to its increased carcinogenicity had its own MCL established in California. In 2017 that MCL was invalidated. Now a new MCL has been proposed. Chromium-6 occurs naturally in Californian rock formations and is an industrial contaminant. In 2017, it was found in almost 4,000 wells. This workshop will help systems prepare for the new MCL and make informed decisions on treatment techniques.

Participants will Learn:

Basic info regarding chromium and it’s ionic forms
The adverse health effects caused by chromium-6 exposure
The regulatory history of chromium
What to expect from regulations in the future
Treatment techniques
Practical considerations when choosing treatment techniques

The recommended audience includes operators, managers and board members that have an interest in providing chromium-safe water to their customers.

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