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This document contains health risk information on regulated drinking water contaminants to assist public water systems in preparing these reports. A PHG is the concentration of a contaminant in drinking water that poses no significant health risk if consumed for a lifetime. PHGs are developed and published by OEHHA (Health and Safety Code Section 116365) using current risk assessment principles, practices and methods.

A draft of the HDI REL document was released for a 75-day public review and comment period on December 1, 2017.  One set of comments was received.  Those comments and the OEHHA responses to those comments are also available at this time.

Advisory based on mercury and PCBs. For information relating to biotoxins from harmful algal blooms (HABs) that may be found in California water bodies, see below.

The advisory provides safe eating advice for black bass species, Common Carp, and sunfish species.

Preguntas frecuentes sobre el ácido domoico en pescado y mariscos, consejos sobre cómo puede reducir su riesgo, y dónde puede apprender más información.

The committee considered N-Nitrosohexamethyleneimine and gentian violet for listing as known to the state to cause cancer.

The committee considered nickel and nickel compounds for listing as known to the state to cause reproductive toxicity. A summary of the meeting, meeting agenda, and transcript are available.

The committee considered nickel and nickel compounds for listing as known to the state to cause reproductive toxicity. A summary of the meeting, meeting agenda, and transcript are available.

The advisory issued provides safe eating advice for black bass species, Channel Catfish, Common Carp, Flathead Catfish, and sunfish species  for the All-American Canal.

The advisory issued provides safe eating advice for black bass species, Channel Catfish, Common Carp, Flathead Catfish, and sunfish species  for the All-American Canal.