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TTEK

Identity verified against SEC EDGAR filing 0000831641-25-000032; registered as TETRA TECH INC, CIK 0000831641.

Tetra Tech, Inc.

Tetra Tech provides direct full-lifecycle PFAS engineering and management services. Official sources describe characterization, remediation, treatment and destruction capabilities and an eight-year design contract for a 96-million-gallon-per-day PFAS treatment facility with a projected $350 million construction cost. Q2 2026 revenue was $1.22 billion and backlog was $4.28 billion. The facility cost is not Tetra Tech revenue and PFAS-specific revenue remains undisclosed, so the subject remains NOT_READY.

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Reviewed company research · researched 2026-07-29 · not an individual investment recommendation
Listing
public
Ticker
TTEK
Exchange
Nasdaq
HQ
United States
Currency
USD
SEC CIK
0000831641
Investment case

How this company captures the theme economics

Competitive position

Tetra Tech combines PFAS characterization, remedial design, treatment and destruction support across public and private clients. The Dayton award verifies a current large-scale treatment design role, but neither award value nor PFAS-specific backlog is disclosed.

Scarce assets

Scarce assets in this value chain include accredited pfas laboratory capacity (low-ppt lc-ms/ms analysis) as monitoring mandates scale to 2027, pfas-selective ion-exchange resin supply and regeneration capability (claimed 30-40% lifecycle-cost advantage over gac), rcra-permitted high-temperature incineration capacity with validated otm-50/method 0010 emissions performance - concentrated in very few operators.

Products, segments, and customers

Tetra Tech reports Government Services Group and Commercial/International Services Group. Its PFAS practice spans investigation, compliance, treatment design, destruction evaluation and AFFF transition.

Theme capture

Direct PFAS engineering capability and a current named treatment-facility design contract are verified. PFAS revenue, fee value and backlog are not separately disclosed, so materiality fails closed.

Conditions

What must be true

  1. Track task-order announcements under the Huntsville and Army MATOCs; review TTEK filings and calls for PFAS backlog commentary and DoD environmental budget exposure.
  2. The exposure described for Tetra Tech must be confirmed as financially material in official filings.

Identifiable catalysts

  • Forthcoming quarterly and annual issuer filings
  • Theme-level catalysts detailed in the PFAS treatment, destruction and liability transfer brief
Theme materiality

2 mapped themes

Exposure statements are evidence-qualified. Materiality is only claimed where disclosure supports it.

Full-lifecycle PFAS environmental engineering: characterization/forensics, remedial design, treatment systems (GAC/IX), AFFF transition, emerging destruction technologies (eBeam, SCWO, plasma, electrochemical) and regulatory/litigation support - anchored in defense contracting.

PFAS treatment, destruction and liability transfer

Direct PFAS engineering and treatment-design exposure. Tetra Tech's official PFAS practice covers the lifecycle from characterization through treatment and destruction, and the Dayton award verifies an eight-year design role for a 96 MGD dedicated PFAS facility.

Evidence
The official PFAS practice page and Dayton award directly support service breadth, contract term and facility capacity. The projected $350 million is construction cost, not Tetra Tech revenue; the filing and Q2 results support company scale only.
Materiality
not assessed — Named capability and contract are verified, but PFAS revenue, fees, margin and backlog are not separately disclosed.
Water, environment and flood-resilience engineering for government and utility clients (adaptation engineering bottleneck).

Climate risk transferring into municipal finance

High exposure, well evidenced: Q2 FY2026 backlog of $4.28B with raised FY26 guidance, followed by a run of theme-adjacent wins - $49M USACE flood-risk and ecosystem restoration contract (June 25, 2026), $25M EPA water-quality contract (July 16, 2026), and design of the largest dedicated US PFAS water treatment facility (~$350M construction cost, July 21, 2026).

Evidence
Fetched Q2 FY2026 results summary (April 29, 2026: revenue $1.22B, net revenue $1.05B, adjusted EPS $0.34) and dated contract announcements. Limitation: federal-client concentration was not quantified in fetched pages, and adaptation-specific revenue is not a disclosed line.
Materiality
estimated — Backlog, guidance and a stream of water/flood contract awards are disclosed and fetched; the share attributable to climate adaptation specifically is an estimate built from that contract flow, not a company-disclosed metric.
Financial evidence

Official SEC filing evidence

Reference period: FY2025 and Q2 2026.

  • Operating income$408 million
    FY2025[1]
  • EBITDA$467 million
    FY2025[1]
  • Net income to common$248 million
    FY2025[1]
  • Diluted EPS$0.93
    FY2025[1]
  • Operating cash flow$458 million
    FY2025[1]
  • Free cash flow$439 million
    FY2025[1]
  • Total debt$775 million
    FY2025 year-end[1]
  • Net debt / EBITDA1.30x
    FY2025 year-end[1]
  • Revenue$1.22 billion
    Q2 2026[2]
  • Backlog$4.28 billion
    Q2 2026[2]
  • Diluted EPS$0.36
    Q2 2026[2]

Limitation: Filing evidence establishes scale, profitability, cash generation, and leverage. Market-derived valuation is withheld until a licensed market-data feed is connected, and theme materiality is stated separately.

Risks

Material risks and break conditions

Material risks

  • Finalized partial rescission removes four of six regulated compounds, shrinking treated-compound scope and some testing/treatment demand
  • Compliance-deadline extension to 2031 (or further slippage) defers utility capex and pressures near-term equipment and media orders

Thesis-break conditions

  • Final rule or court decision rescinds, vacates or raises the PFOA/PFOS MCLs above 4.0 ppt
  • Compliance deadline extended beyond April 2031 or exemptions made effectively open-ended
Investability conclusion

Where the evidence lands

NOT_READY. Official filing and issuer evidence verify identity, current company scale, direct PFAS services and a current facility-design contract. PFAS-specific economics, current licensed valuation and human reviewer acceptance remain unresolved; no subject acceptance or recommendation is permitted.

Next diligence

  1. Track task-order announcements under the Huntsville and Army MATOCs; review TTEK filings and calls for PFAS backlog commentary and DoD environmental budget exposure.
  2. Quantify federal vs state/local/utility revenue mix from the 10-Q; monitor whether USACE/EPA award cadence survives FY2027 federal budget decisions.
Source ledger

Identity and evidence sources

Identity was verified against official issuer, filing, exchange, or regulator sources where available.

  1. TETRA TECH INC FY2025 Form 10-KSEC EDGAR · primary · published 2025-11-20 · accessed 2026-07-22
  2. Second Quarter 2026 ResultsTetra Tech, Inc. · primary · published 2026-04-29 · accessed 2026-07-29
  3. PFAS ManagementTetra Tech, Inc. · primary · published undated · accessed 2026-07-29
  4. Tetra Tech Selected to Design Largest Dedicated PFAS Water Treatment Facility in the United StatesTetra Tech, Inc. · primary · published 2026-07-21 · accessed 2026-07-29