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United States ex rel. Jahr, et al., v. Tetra Tech EC, Inc.
Date: 08-25-2026
Case Number: 13-cv-3835
Judge: Not Available
Court: United States District Court for the Northern District of California (San Francisco County)
Plaintiff's Attorney: United States Department of Justice and
David Curtis Anton and Albert Thomas Morris, Anne Marie Murphy
Defendant's Attorney:
Click Here For The Best San Francisco Civil Litigation Lawyer Directory
Reported by Kent Morlan
Arthur R. Jahr III, Elbert G. Bowers, Susan V. Andrews, Archie R. Jackson, Anthony Smith, Donald K. Wadsworth, and Robert McLean, former employees and contractors of Tetra Tech. alleged that, pursuant to contracts issued by the Navy between 2003 and 2014, Tetra Tech EC, Inc. was required to investigate the soil and buildings at HPNS and to remediate any areas where radiation was excessive so that the property could be transferred to the City of San Francisco for redevelopment. The government alleged that Tetra Tech instructed field technicians to discard soil samples collected from potentially contaminated locations, replace the discarded samples with “clean” soil known to satisfy the release criteria, and to submit the replaced samples for laboratory analysis. The complaint further alleged that Tetra Tech intentionally manipulated scan results in its database that falsely represented that scans taken at different locations were conducted by the same technician at the same time. The government alleged that Tetra Tech benefited from this misconduct by receiving unearned contract award fees and avoiding obligations to perform additional remediation work, thereby decreasing its costs and increasing its profits.
The relators’ share of the settlement is approximately $11,970,000.
The claims resolved by the settlement are allegations only and there has been no determination of liability.
About This Case
What was the outcome of United States ex rel. Jahr, et al., v. Tetra Tech EC, Inc.?
The outcome was: Settled for $57 million. The relators’ share of the settlement is approximately $11,970,000. The claims resolved by the settlement are allegations only and there has been no determination of liability.
Which court heard United States ex rel. Jahr, et al., v. Tetra Tech EC, Inc.?
This case was heard in United States District Court for the Northern District of California (San Francisco County), CA. The presiding judge was Not Available.
Who were the attorneys in United States ex rel. Jahr, et al., v. Tetra Tech EC, Inc.?
Plaintiff's attorney: United States Department of Justice and David Curtis Anton and Albert Thomas Morris, Anne Marie Murphy. Defendant's attorney: Click Here For The Best San Francisco Civil Litigation Lawyer Directory.
When was United States ex rel. Jahr, et al., v. Tetra Tech EC, Inc. decided?
This case was decided on August 25, 2026.