---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-25-004551"
form_type: "8-K"
ticker: "TTEK"
cik: "0000831641"
company_name: "TETRA TECH INC"
filed_at: "2025-01-17T23:59:59+00:00"
generated_at: "2026-05-27T23:36:37.536415+00:00"
event_type: "litigation"
sentiment: "negative"
materiality_score: 0.78
calibrated_materiality_score: 0.78
confidence: "high"
source: SEC EDGAR
---

# Tetra Tech subsidiary to pay $97M to settle Hunters Point environmental remediation claims

## Summary
- TtEC agreed to pay $57M for False Claims Act and $40M for CERCLA claims, total $97M, to resolve civil litigation over Hunters Point Naval Shipyard.
- Settlement includes no admission of liability; consent decree subject to 30-day public comment period and court approval.
- Settlement does not resolve third-party private plaintiff claims; TtEC litigating with insurance carrier for possible reimbursement.
- Payment expected from cash on hand and credit facility draw.

## SEC filing metadata
- accession: 0001104659-25-004551
- form_type: 8-K
- ticker: TTEK
- cik: 0000831641
- company_name: TETRA TECH INC
- filed_at: 2025-01-17T23:59:59+00:00
- event_type: litigation
- sentiment: negative
- materiality_score: 0.78
- calibrated_materiality_score: 0.78
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/831641/000110465925004551/0001104659-25-004551-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/831641/000110465925004551/tm253630d1_8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-25-004551
- JSON: https://secwatch.observer/filing/0001104659-25-004551.json
- Plain text: https://secwatch.observer/filing/0001104659-25-004551.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.