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environmental Health investigations branch

Environmental Health Investigations Branch

  Current Site Investigations

Click here for more information on the OCNB Supefund site Orange County North Basin Investigation

The California Department of Public Health (CDPH) and the federal Agency for Toxic Substances and Disease Registry (ATSDR) are investigating potential risks of exposure to pollution from industrial sources in northern Orange County, including parts of Anaheim, Fullerton, and Placentia. 

PublicHealthAssessment-BlueLedgeMineSite Blue Ledge Mine Superfund Site Investigation

CDPH and ATSDR are investigating the Blue Ledge Mine Superfund site in the Rogue River-Siskiyou National Forest. 

PictureAbandonedMine Argonaut Mine Superfund Site Investigation

CDPH and ATSDR are investigating the Argonaut Mine Superfund site in the city of Jackson, located in Amador County.


Click here for more information on the two Superfund sites in South Gate Superfund Site Investigations in South Gate, Los Angeles

CDPH and ATSDR are investigating two Superfund sites in the city of South Gate, CA; Southern Avenue Industrial Area and Jervis B. Webb Co.


Click here for more information on the Modesto Dry Cleaner Investigations Modesto Dry Cleaner Investigation

CDPH and ATSDR are investigating how releases of dry cleaner chemicals into the soil could affect indoor air of dry cleaner buildings and nearby homes. 



Riverside Agricultural Park

CDPH and ATSDR are investigating the public health concerns associated with contamination at the Riverside Agricultural Park ("Ag Park").
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For additional information contact, Russ Bartlett, Chief of the Site Assessment Unit, at (510) 620-3610 or

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