Site Assessment Section

Environmental Health investigations branch

Environmental Health Investigations Branch

Site Assessment Section

The Site Assessment Section (SAS) of the Environmental Health Investigations Branch works under a cooperative agreement between the California Department of Public Health (CDPH) and the Agency for Toxic Substances and Disease Registry (ATSDR)

Contact Us

Our Key Activities

  • We assist communities and public agencies in addressing health and exposure concerns related to hazardous waste sites (for example Superfund sites) and releases of hazardous materials
  • All work is conducted in collaboration with the affected community
  • Our work includes exposure asssessment, toxicology, community engagement, and education

 Current Projects 


Click here for more information on engineered nanomaterials and public healthEmerging Environmental Public Health Concerns

Engineered Nanomaterials: SAS is working to promote and encourage the safe development and use of engineered nanomaterials by raising awareness of the uncertainties associated with these materials.


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

SAS is investigating the Orange County North Basin area. The site is a comingled groundwater plume of contaminants covering more than five square miles. Multiple agencies are involved including the US Environmental Protection Agency, Orange County Water District, Santa Ana Regional Water Quality Control Board, and the cities of Fullerton, Placentia, and Anaheim.



Argonaut Mine Superfund Site Investigation

SAS is 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 GateSuperfund Site Investigations in South Gate, Los Angeles

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


CEHAT%20LOGO%202016Community Air Monitoring in South Gate, Los Angeles

The South Coast Air Quality Management District, the California Department of Public Health (CDPH), and the South Gate Community Environmental Health Action Team (CEHAT) are collaborating on a project to engage, educate, and empower California communities on the use and applications of low-cost air monitoring sensors.


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

SAS is investigating how releases of dry cleaner chemicals into the soil could affect indoor air of dry cleaner building and nearby homes. 




Riverside Agricultural Park

SAS is investigating the public health concerns associated with contamination at the Riverside Agricultural Park ("Ag Park").
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