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An updated state fish advisory issued today for Black Butte Lake in Glenn and Tehama counties provides safe eating advice for black bass species, Channel Catfish, Common Carp, crappie species, Inland Silverside and Threadfin Shad. 

Do you want to make a difference?  We have openings. The mission of the Office of Environmental Health Hazard Assessment is to protect and enhance public health and the environment by scientific evaluation of risks posed by hazardous substances.

The California Environmental Protection Agency's Office of Environmental Health Hazard Assessment (OEHHA) today issued a new statewide advisory that expands and updates advice for safely consuming sport fish from lakes and reservoirs throughout the state.

Statewide advisory for eating fish from California's lakes and reservoirs without site‑specific advice.

The Office of Environmental Health Hazard Assessment (OEHHA) is providing notice of a change made to the proposed regulation, Title 27, California Code of Regulations, section 28500 and is requesting comments on the modification to the regulatory text.

A Public Health Goal (PHG) is the level of a drinking water contaminant at which adverse health effects are not expected to occur from a lifetime of exposure. The technical support document presents the scientific information available on the toxicity of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) and the calculation of the proposed PHGs.

Summary of the Spring 2021 listening session held jointly with the Pala Band of Mission Indians, the Santa Ynez Band of Chumash Indians, and OEHHA

Questions and answers about the insecticide Altus® (flupyradifurone) used for glassy-winged sharpshooter control in English, Spanish, and Vietnamese.

OEHHA’s mission is to protect human health and the environment through scientific evaluation of risks posed by hazardous substances.

Fish advisory for Stevens Creek Reservoir based on mercury.