Ametek worker examining toxic waste

Ametek has agreed to resolve claims that they exposed certain Californians to toxic contamination from waste materials stored below ground.

The settlement benefits a variety of people who lived in El Cajon’s mobile home parks or attended elementary school in the area between Jan. 1, 1963 and April 14, 2020. More information about eligible Class Members is available in the “Who’s Eligible” section below.

Two Ametek waste materials class action lawsuits are resolved through the recent settlement deal. Plaintiffs in the case claimed that certain residents of El Cajon, Calif. were exposed to dangerous chemicals via Ametek’s negligence.

Between 1963 and 1983, manufacturing materials were allegedly placed in an in-ground tank at an El Cajon Ametek facility.

Although the tank has since been removed, the toxic chemicals allegedly contaminated the surrounding groundwater and soil. As a result, locals were reportedly exposed to the dangerous materials including Trichloroethylene (TCE).



TCE is a volatile ingredient that was formerly used in a variety of manufacturing processes. However, the material was banned in 1977 after it was found to be a carcinogen.

According to the Agency for Toxic Substances & Disease Registry, TCE is associated with a variety of cancers including kidney cancer, liver cancer and non-Hodgkin’s lymphoma.

The settlement provides remediation and mitigation benefits to consumers who lived in applicable mobile home parks.

These benefits will allow consumers to have a mitigation system installed in their mobile home to address contamination concerns.

In order to receive remediation or mitigation benefits from the settlement, Class Members must file a valid claim by Sept. 23, 2021.



Both mobile home and elementary school Class Members are eligible for medical consultations from the settlement. These benefits will cover the cost of having medical screening done to address the potential health concerns of TCE exposure. Claims for medical consultation benefits are due by Sept. 23, 2022.

The deadline for exclusion and objection is July 25, 2020. The final approval hearing for the settlement is scheduled for Aug. 24, 2020.

Who’s Eligible

Individuals who resided in the following mobile home parks for more than one calendar year between Jan. 1, 1963 and April 14, 2020 or who own a mobile home coach in one of the following mobile home parks as of April 14, 2020:

  • Greenfield Mobile Estates, 400 Greenfield Dr., El Cajon, CA 92021
  • Starlight Mobile Home Park, 351 E Bradley Ave., El Cajon, CA 92021
  • Villa Cajon Mobile Home Estates, 255 E Bradley Ave., El Cajon, CA 92021

AND individuals who worked at Magnolia Elementary School or attended the school as a student for one or more years between Jan. 1, 1963 and April 14, 2020.

Potential Award

Medical consultations and remediation or mitigation benefits.



Medical consultations will allow Class Members to receive a variety of screening procedures to see if they are at risk for medical conditions resulting from exposure to Trichloroethylene (TCE). The following medical services will reportedly be covered by the settlement:

  • History and physical examination by board-certified physician;
  • Blood chemistry, blood count, and microscopy urinalysis;
  • CT scan of kidney (in a follow-up appointment, if determined necessary); and/or
  • Liver ultrasound or MRI (in a follow-up appointment, if determined necessary).

Mitigation and remediation benefits will also be made available to Class Members who lived in mobile homes. Remediation will include installation of mitigation systems.

Proof of Purchase

Full names, dates of birth, Social Security numbers (if available), dates of residence at the mobile home park, unit number within the mobile home park during residency, and other information.

Claim Form

CLICK HERE TO FILE A CLAIM »

There are two claim forms available, the Cox Settlement Claim Form and the Trujillo Settlement Claim Form. Class Members can consult with the settlement website to determine which claim form to use.

NOTE: If you do not qualify for this settlement do NOT file a claim.

Remember: you are submitting your claim under penalty of perjury. You are also harming other eligible Class Members by submitting a fraudulent claim. If you’re unsure if you qualify, please read the FAQ section of the Settlement Administrator’s website to ensure you meet all standards (Top Class Actions is not a Settlement Administrator). If you don’t qualify for this settlement, check out our database of other open class action settlements you may be eligible for.

Claim Form Deadline

9/23/2021 (for remediation and mitigation benefits)

9/23/2022 (for medical consultation benefits)

Case Name

Cox, et al. v. Ametek Inc. et al., Case No. 3:17-cv-00597-GPC-AGS, and Trujillo v. Ametek Inc., Case No. 15-cv-01394, both in the U.S. District Court for the Southern District of California

Final Hearing

8/24/2020

Settlement Website
Claims Administrator

El Cajon Claims Administrator
c/o Epiq
P.O. Box 3266
Portland, OR 97208-3266
info@ElCajonCaseSettlement.com
1-844-814-8803

Class Counsel

Scott Summy
BARON & BUDD

Defense Counsel

Edward C. Walton
Sean M. Sullivan
PROCOPIO CORY HARGREAVES & SAVITCH LLP

Kimberly Arouh
BUCHANAN INGERSOLL & ROONEY LLP

Michael Pietrykowski
GORDON & REES SCULLY MANSUKHANI LLP

Theresa H. Lazorisak
COOKSEY TOOLEN GAGE DUFFY & WOOG

Robert M. Juskie
Colin Walshok
WINGERT GREBING BRUBAKER & JUSKIE LLP

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Please note: Top Class Actions is not a settlement administrator or law firm. Top Class Actions is a legal news source that reports on class action lawsuits, class action settlements, drug injury lawsuits and product liability lawsuits. Top Class Actions does not process claims and we cannot advise you on the status of any class action settlement claim. You must contact the settlement administrator or your attorney for any updates regarding your claim status, claim form or questions about when payments are expected to be mailed out.

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