Evidence
6 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-6).
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[1]DANFS, Trepang II (SSN-674) - construction, Arctic and Mediterranean service, yard availabilities [nhhc_danfs]
- Locator
- DANFS service narrative and spec block
- Finding type
- vessel_history
- Finding
- Documented for this hull (NHHC DANFS): contract awarded 15 July 1966 to General Dynamics Corp., Electric Boat Division, Groton, Conn.; keel laid 28 October 1967; launched 27 September 1969, sponsored by Mrs. Melvin R. Laird; delivered 1 August 1970; commissioned 14 August 1970, Comdr. Dean Sackett Jr. in command. DANFS records Arctic under-ice operations February-March 1971; an interim drydocking at Portsmouth Naval Shipyard in early 1973; a Mediterranean deployment June-November 1973 during the Yom Kippur War period; homeport shift to Portsmouth, N.H., October 1974; an annual overhaul with drydock late 1974-August 1975; and an extensive refit with drydock May-June 1977. DANFS spec block lists complement 107.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1966-1999
- Population
- EB construction trades (1967-70); PNSY trades; crew (1970-1999)
- Limitations
- Ship-specific history only; no asbestos or material content. Yard-period asbestos disturbance is era inference, not a per-hull record. DANFS narrative coverage ends in the late 1970s; post-1978 service is documented only by secondary compilation.
- Atlas source
- true
- Evidence ID
- ev-uss-trepang-ssn674-01
-
[2]Naval Vessel Register, Trepang (SSN-674) detail page (Internet Archive Wayback capture) [other_primary]
- Locator
- NVR SHIPSDETAIL SSN-674 page, milestone table (Wayback capture)
- Finding type
- historical_record
- Finding
- Naval Vessel Register detail record (archived capture; live NVR requires Navy SSO): Trepang decommissioned and stricken 1 June 1999; disposed of by submarine recycling, status changed 7 April 2000; custodian Puget Sound Naval Shipyard, Bremerton; complement listed 14 officers + 95 enlisted; propulsion 'Steam Turbine (Nuclear)'.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1999-2000
- Population
- None
- Limitations
- Register milestone data only; contains no material or asbestos characterization. Live NVR detail pages now redirect to Navy SSO - figures were read from an archived capture and may reflect late-service register state.
- Atlas source
- true
- Evidence ID
- ev-uss-trepang-ssn674-02
-
[3]Cooks v. General Electric Company, No. 3:07-cv-05451-EMC (N.D. Cal.), complaint Exhibit A work-history/exposure exhibit, ECF No. 1-2 (filed 2007-10-25) [court_record]
- Locator
- ECF 1-2, Exhibit A vessel list and job-duties block (Mare Island Naval Shipyard, Vallejo)
- Finding type
- litigation_documented
- Finding
- Asbestos complaint exhibit (plaintiff Alvin Cooks's Mare Island Naval Shipyard work-history/exposure exhibit, Marine Machinist 1974-1995) lists vessels and locations of alleged asbestos exposure, expressly including 'TREPANG (SSN-674)'. The exhibit describes machinist duties including removing and replacing gaskets and packing, cutting gaskets, and cleaning valves, pumps, and blowers around insulators and other trades.
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Study period
- 1974-1995 (grouped ranges 1974-1991 / 1984-1995)
- Population
- Mare Island Naval Shipyard trades (plaintiff's claimed window)
- Limitations
- Complaint-exhibit vessel list; unadjudicated pleading-stage allegation - not a finding that asbestos was aboard any listed hull. The exhibit groups its vessel entries under two date-range annotations ('1974-1991' and '1984-1995'); a '1974-1991' marker sits adjacent to this entry's block, though column-flow in the scanned layout makes exact assignment uncertain. Either way the window is NOT corroborated: DANFS places Trepang's availabilities at Portsmouth Naval Shipyard and Groton on the Atlantic side, and no Mare Island period is documented. Whether the plaintiff's claimed contact occurred during an undocumented Pacific visit cannot be resolved from located sources. Establishes nothing about materials aboard this hull, exposure of any individual, quantity, or eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-trepang-ssn674-03
-
[4]Era inference built on: NHHC DANFS/NVR record (S5W2 plant, single shaft); shipyard-exposure-map documented asbestos product lists for the associated yards; no hull-specific material record located [other_primary]
- Locator
- class/era synthesis (no ship-specific document)
- Finding type
- asbestos_application
- Finding
- Era inference: a Sturgeon-class nuclear attack submarine built 1967-70 at Electric Boat, Groton, and maintained through Navy-yard availabilities sits inside the Navy's peak asbestos-use era. Era-standard applications on the secondary steam plant (steam generators feeding geared turbines) and auxiliary systems included thermal/pipe insulation, gaskets, packing, and machinery insulation. Documented asbestos product lines at the associated yards (Electric Boat/Groton, Portsmouth NSY) are recorded in the shipyard-exposure-map dataset.
- Verification
- inferred
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-18
- Study period
- 1967-2000
- Population
- Shipyard construction trades (1967-70); yard availability trades; crew (1970-1999)
- Limitations
- CLASS/ERA INFERENCE ONLY - no ship-specific material schedule, insulation survey, or abatement record was located for this hull. Names era-standard applications on non-nuclear auxiliary systems; the S5W2 reactor plant itself establishes nothing. Does not establish asbestos aboard this hull, any exposure, or any quantity. Never infer ship-specific findings from this row.
- Atlas source
- true
- Evidence ID
- ev-uss-trepang-ssn674-04
-
[5]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO HRD-80-2 product page
- Finding type
- gov_survey
- Finding
- GAO documented that the Navy used asbestos insulation extensively aboard ships and did not begin substituting alternative insulation materials until the early 1970s - covering this hull's construction and the bulk of her service-era insulation events.
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-09-18
- Study period
- 1967-2000
- Population
- Navy ship and shipyard population (program-level)
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full text not retrieved (gao.gov blocks automated fetch) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-trepang-ssn674-05
-
[6]Batch-40 search ledger (this record): NHHC DANFS, archived Naval Vessel Register detail pages, CourtListener docket records via RECAP archive, GAO program documentation [other_primary]
- Locator
- synthesis of the ship's search-ledger rows
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located for USS Trepang (SSN-674): no asbestos survey, abatement contract, hazmat disclosure, or adjudicated exposure finding naming this hull was found. The Cooks exhibit naming this hull is a pleading-stage allegation only. No additional qualifying litigation naming this hull was located in the retrieved RECAP corpus (Siegfried, Gay, McIntyre, Harris exhibits/orders checked; Speck SJ order checked).
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-09-18
- Population
- Shipyard construction trades; overhaul trades; crew
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard or absence of exposure. Recycling-era hazmat/abatement records for the Ship-Submarine Recycling Program are not public. CourtListener live search was rate-limited/auth-walled during this batch (logged in the search ledger); coverage rests on the retrieved RECAP document corpus and prior-batch sweeps, which is not exhaustive. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-trepang-ssn674-06