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A number of investigations have determined that the San Fernando Aquifer has contamination of Volatile Organic Compounds such as trichloroethylene, tetrachloroethylene , petroleum compounds, chloroform, nitrate, sulfate, and heavy metals (Setmire 1985; ULARAW 1999). The contamination is primarily due to improper storage, handling, and disposal of hazardous chemicals used in industrial manufacturing and aerospace engineering since before World War II (EPA 2025). As discussed in the Water Resource section, there are several remediation strategies in place to better optimize and remediate the San Fernando Aquifer.
Table 2: EPA progress from Superfund Status to publication of this site (EPA 2025).
Agencies Responsible
Agencies Responsible
Efforts from Los Angeles County, the Department of Toxic Substances Control (DTSC), the Los Angeles Regional Water Board, the Environmental Protection Agency (EPA), as well as grants from the Superfund all contribute to increasing the utilization on the San Fernando Aquifer.
As the remediation strategy is still in the feasibility phase, a lot of the proposed strategies and specific levels of contamination are propriety information of private sector companies at this time. Below are several of the agency's websites, where updated information can be found.
Los Angeles Department of Water & Power
https://cumulis.epa.gov/supercpad/SiteProfiles/index.cfm?fuseaction=second.cleanup&id=0902253
https://www.waterboards.ca.gov/losangeles/water_issues/programs/remediation/chromium/chromium_s1.html#:~:text=The%20primary%20contaminants%20of%20concern,were%20taken%20out%20of%20service
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