Testing soil safety after wildfires
Protecting Angelenos from dangerous contamination with free rapid-response soil testing. Our Contaminant Level Evaluation and Analysis for Neighborhoods (CLEAN) project is a USC program separate from L.A. Dept. of Public Health soil testing.
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Participating in CLEAN
- Review our sampling guide in its entirety to learn how to collect your sample safely.
- Complete our intake survey and receive your Unique Sample ID–this is required before we can test your sample.
- Bring your soil sample to one of the drop-off locations, or mail your sample directly to USC.
- See our frequently asked questions | Español.
Submitting your sample
You can submit samples to the CLEAN project by mail or at one of the following community-based drop-off locations.
Samples will not be accepted in-person on USC’s campus—please make use of our designated drop boxes or mail in your sample.
Please submit a maximum of two samples at this time. Do not collect more than ¼ cup of soil in each sample.
You cannot submit samples for L.A. County Department of Public Health’s Eaton soil testing program at any of these locations.
By Mail
To mail samples, you must pay for your own postage and ship samples to:
CLEAN Project
3651 Trousdale Parkway
USC ZHS 117B
Los Angeles, CA 90089
Palisades Fire Zone Drop Off Locations
American Legion, Post 283
15247 La Cruz Dr, Pacific Palisades, CA 90272
Mon–Sat: 9 AM – 5 PM
Lloyd Taber-Marina del Rey Library
4533 Admiralty Way, Marina del Rey, CA 90292
Mon–Thu: 10 AM – 8 PM |
Fri–Sat: 10 AM – 6 PM | Sun: CLOSED
Eaton Fire Zone Drop Off Locations
Altadena Grocery Outlet
2270 Lake Ave, Altadena, CA 91001
Open daily: 9 AM – 7 PM
Pasadena First AME Church
1700 N Raymond Ave, Pasadena, CA 91103
Tues–Sun: 10 AM to 4 PM
Boyle Heights City Hall
2130 East 1st Street Los Angeles, CA 90033
Mon–Fri: 9 AM–5PM
To contact the CLEAN team
Via email: cleanproject@usc.edu
Via phone: (323) 800-2714
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