Evidence
9 evidence entries recorded; each entry has a stable permalink (#ev-1 … #ev-9).
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[1]research packet 913-packet.md (4 sources cited) [nhhc_danfs]
- Finding type
- vessel_history
- Finding
- Identity packet verdict: VERIFIED (thin sourcing
- Verification
- verified
- Role
- supporting
- Documentation level
- ship_specific
- Limitations
- qualifier: VERIFIED (thin sourcing
- Evidence ID
- uss-solvay-pc603-pkt-913-packet-md
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[2]DANFS, Solvay (PC-603), Vol. VI p. 547 - construction, service narrative, naming, striking, disposal approval (verbatim transcription; live NHHC page returned 404 on all candidate URLs) [nhhc_danfs]
- Locator
- DANFS Vol. VI p. 547 service narrative and spec block
- Finding type
- vessel_history
- Finding
- Documented for this hull: laid down 9 May 1942 at Morris Heights, N.Y., by Consolidated Shipbuilding Corp.; launched 30 June 1942, sponsored by Mrs. J. H. Keatley; commissioned 1 October 1942. Shakedown on the southeastern coast; coastal convoy escort Virginia Capes-Key West; Guantanamo Bay 29 Nov and Kingston 30 Nov 1942; Panama Canal transit 5 Dec; San Diego 13-18 Dec; reported to Commander, Northwestern Sea Frontier, Seattle 21 Dec 1942. North to Kodiak 11-14 Apr 1943; seven months Aleutian convoy escort and patrol (Attu, Adak, Amchitka, Dutch Harbor, Shemya, Kiska); departed Adak 29 Nov 1943, Pearl Harbor 8 Dec; Hawaiian Sea Frontier for the rest of the war plus nine months (Pearl Harbor to 26 May 1944, Midway to Dec 1944, Hawaiian group to 10 May 1946). San Pedro one month; Panama Canal late June; Norfolk 8 Jul 1946; departed Norfolk 29 Aug in tow of Kiowa (ATF-72), Philadelphia next evening for 4th Naval District duty. Decommissioned at Philadelphia 8 Jan 1947 and placed in service, Naval Reserve Training Program, eastern seaboard and occasionally Caribbean, until Oct 1949; assigned to Atlantic Reserve Fleet 15 Oct, reported to Norfolk Group 26 Oct 1949. Named Solvay 1 Feb 1956; struck from the Navy list 1 Jul 1960; hulk disposal approved 15 Mar 1961. Spec block: dp. 280; l. 173'8"; b. 23'0"; dr. 10'10"; s. 20.2k; cpl. 65; a. 1 3", 1 40mm; cl. PC-461.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1961
- Population
- Consolidated Shipbuilding construction trades (1942); crew (1942-47, reserve-training status 1947-49)
- Limitations
- Ship-specific history only; no asbestos or material content. DANFS ends the record at the 15 Mar 1961 disposal approval - final fate unstated. Conflicts with NavSource on the post-1949 status sequence ('placed out of service 1 Feb 1956' vs Atlantic Reserve Fleet Oct 1949) and the naming date (1 vs 15 Feb 1956) - carried in gaps. Live NHHC DANFS pages returned 404 for all candidate URLs on 2026-10-03; verbatim losthistory.net/hazegray transcription cited.
- Atlas source
- true
- Evidence ID
- ev-uss-solvay-pc603-01
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[3]NavSource Online: Submarine Chaser Photo Archive, Solvay (PC 603) ex-PC-603 - milestone timeline, specifications, NH 43520 NHHC launch photograph, 'fate unknown' [other_primary]
- Locator
- NavSource 12/010603.htm timeline block, specifications block, photo captions
- Finding type
- vessel_history
- Finding
- NavSource timeline for this hull: laid down 9 May 1942, Consolidated Shipbuilding Corp., Morris Heights, NY; launched 30 June 1942; commissioned USS PC-603 1 October 1942; placed in service as a naval reserve training vessel September 1946, 4th Naval District (Philadelphia); decommissioned 8 January 1947 at Philadelphia Navy Yard; placed out of service 1 February 1956 at Norfolk, laid up Atlantic Reserve Fleet Norfolk Group; named Solvay 15 February 1956; struck from the Navy Register 1 July 1960; approved for disposal 15 March 1961; 'fate unknown.' Specifications: 450 t; 173'8" x 23' x 10'10"; 20.2 kts; complement 65; one 3"/50 DP, one 40mm, two 20mm, two depth-charge projectors, two depth-charge tracks; two 1,440 bhp Fairbanks Morse 38D8 1/8 diesel engines, Westinghouse single reduction gear, two shafts. Photo captions document NH 43520 (NHHC) launch photograph 30 June 1942 and a January 1943 Neah Bay, WA image from the Fred Graves collection.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1961
- Population
- Construction trades (1942); crew and Naval Reserve training population (1942-49); caretaker/reserve-fleet personnel (1949-61)
- Limitations
- NavSource is a volunteer secondary compilation, not a primary registry; its milestones generally track DANFS/NVR but conflict with DANFS on the post-1949 status sequence and naming date (carried in gaps). 'Fate unknown' vs shipbuildinghistory's 'sold 1961' also carried in gaps. Contains no asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-solvay-pc603-02
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[4]shipbuildinghistory.com (Colton), 'Sub Chasers Built During WWII (SC, PC, PCE, PCER, PCS)' production table - PC-603 row and Consolidated Shipbuilding yard history [other_primary]
- Locator
- shipbuildinghistory.com/smallships/pc2.htm PC-603 table row; /shipyards/yachtsmall/consolidated.htm yard history
- Finding type
- vessel_history
- Finding
- Production-table row for this hull: 'PC 603 | Consolidated SB | Morris Heights NY | 463 | 173 | 1-Oct-42 | Named Solvay 1956, sold 1961.' The same table documents the yard's PC-461-series output (interleaved with other builders). The compiler's yard history documents Consolidated Shipbuilding, Morris Heights (the merged Charles L. Seabury Co. / Gas Engine & Power Co. 'Speedway Shipyard' on Matthewson Road): prewar luxury-yacht builder, roughly 3,000 tradespeople during WWII, closed Morris Heights after the war (moved to City Island), ceased active shipbuilding 1958; the yard site is now part of Roberto Clemente State Park.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1961
- Population
- Consolidated Shipbuilding Morris Heights workforce (~3,000 trades, wartime)
- Limitations
- Secondary compiler (not a registry); 'sold 1961' is the only located disposition claim beyond DANFS's disposal approval and conflicts with NavSource's 'fate unknown' - carried in gaps rather than asserted. Yard employment figure is the compiler's estimate. No asbestos content.
- Atlas source
- true
- Evidence ID
- ev-uss-solvay-pc603-03
-
[5]uboat.net Allied Warships, USS PC-603 (PC-603) - ordered date, commanding-officer roster, notable-events list [other_primary]
- Locator
- uboat.net ship/8580.html commands table and notable-events list
- Finding type
- vessel_history
- Finding
- Operational detail for this hull: ordered 20 September 1941. Wartime CO roster: P M Flagg USNR (Oct 1942-early 1943); Gerald Sellen Hewitt USNR (early-mid 1943); Lt. Edward Dimmick Gasson USNR (mid 1943-early 1944 and again ear-mid 1944-mid 1944); Lt.(jg) Samuel Powel Jr. USNR (early 1944 and mid 1944-early 1945); J Jinishian USNR (early-late 1945). Notable events document Pearl Harbor submarine-escort duty in 1944: escorted USS Skate in 7 Jan, USS Swordfish in 7 Feb, USS Searaven out 15 Aug and in 25 Dec, and joined USS Dragonet/Haddo/Gar 27 Dec 1944 - consistent with DANFS's Hawaiian Sea Frontier assignment.
- Verification
- verified
- Role
- context
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 1942-1945
- Population
- Wartime crew (complement 65)
- Limitations
- Secondary compilation of patrol-report and war-diary data; corroborates but does not extend the DANFS narrative materially. No asbestos content. NavSource captions show 'CDR Flagg' as CO - consistent with the roster's first entry.
- Atlas source
- true
- Evidence ID
- ev-uss-solvay-pc603-04
-
[6]Era inference built on: DANFS/NavSource spec blocks (PC-461 class, 2 x Fairbanks Morse 38D8 1/8 diesels, 173'8" steel hull); shipbuildinghistory class production table; Wikipedia PC-461-class article (341 completed 1941-44, secondary); GAO HRD-80-2 Navy asbestos-use era (see ev-uss-solvay-pc603-06) [other_primary]
- Locator
- DANFS/NavSource spec blocks; shipbuildinghistory PC-461 production table; GAO HRD-80-2 product page
- Finding type
- asbestos_application
- Finding
- A PC-461-class steel patrol craft built May-October 1942 sits inside the Navy's documented asbestos-use era. Era-standard asbestos applications aboard a small diesel combatant of this period were: diesel-exhaust manifold and muffler lagging; thermal insulation on hot machinery and piping; compressed-asbestos gaskets on engine, exhaust, and piping flanges; valve stem packing; and electrical insulation - all within the confined 173-ft machinery spaces. The diesel plant carries no boilers or steam turbines, so the boiler/turbine lagging pathway of steam vessels does not apply; total installed insulation volume was much smaller than on steam vessels.
- Verification
- inferred
- Role
- supporting
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1942-1961
- Population
- Consolidated Shipbuilding construction trades (1942); engine-room ratings and maintenance crew (1942-49); yard/base trades during availabilities; disposal/scrapping workforce (1961)
- Limitations
- Class/era inference only - no hull-specific insulation schedule, material list, work package, or survey located for PC-603. Names era-standard applications, not confirmed installed materials. No quantity, no manufacturer attribution. Diesel-propelled hull means the asbestos footprint plausibly differs (smaller, exhaust/auxiliary-focused) from steam vessels of the era.
- Atlas source
- true
- Evidence ID
- ev-uss-solvay-pc603-05
-
[7]GAO, Navy Efforts To Protect Workers From Asbestos Exposure, HRD-80-2 (Oct 18, 1979) [gao]
- Locator
- GAO product page HRD-80-2 (full text blocked to automated fetch)
- 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 - spanning this hull's construction (1942) and entire service life (1942-1960; disposal 1961).
- Verification
- verified
- Role
- context
- Documentation level
- class_or_era
- Accessed
- 2026-10-03
- Study period
- 1979 (report); era coverage back through WWII construction
- Population
- Navy shipyard workers; asbestos program review
- Limitations
- Program-level documentation; supports era context only, not any fact specific to this hull. Full text not retrieved (gao.gov blocks automated fetch, HTTP 403, consistent with prior-batch findings) - content via product-page description.
- Atlas source
- true
- Evidence ID
- ev-uss-solvay-pc603-06
-
[8]Batch-7978 search ledger (this record): DANFS verbatim transcription; NavSource; uboat.net; shipbuildinghistory production table + yard history; GAO product page; NVR (no entry, pre-1987 disposal); NPS/NRHP (no designation); CourtListener (see sl-uss-solvay-pc603-07 status); secondary web litigation sweep; NARA deck-log lead [other_primary]
- Locator
- search_ledger rows sl-uss-solvay-pc603-01 through -10
- Finding type
- historical_record
- Finding
- No qualifying ship-specific asbestos record located: no asbestos survey, abatement contract, hazmat disclosure, or verified litigation naming USS Solvay (PC-603) was found in the public sources searched (see search_ledger). CAVEAT: CourtListener could not be queried this session - the fleet-wide pacing limiter returned budget-spent on every attempt across ~1 hour (9 attempts; ~17 concurrent ships sessions sharing a ~58/hr token bucket against the 1,400/day account cap); logged as blocked in the search ledger, not as a negative result. Secondary web sweeps surfaced no qualifying case; the only 'asbestos aboard' material is non-qualifying marketing content - navyshipexposure.com's PC-461 class article (asserts class asbestos content without primary sourcing and misdescribes the documented Fairbanks Morse plant as four GM diesels) and mesotheliomahope.com's patrol-boat category page - excluded by source policy.
- Verification
- verified
- Role
- negative_finding
- Documentation level
- ship_specific
- Accessed
- 2026-10-03
- Study period
- 2026-10-03
- Limitations
- Absence of a located public record does not prove absence of asbestos aboard - era inference remains reasonable, and the litigation repository search is a genuine open gap (fleet pacing blocked, not run). Deck logs (NARA RG 24), Consolidated Shipbuilding build/work records, and any disposal-sale contract are undigitized leads. Does not establish or defeat any claim of exposure or legal eligibility.
- Atlas source
- true
- Evidence ID
- ev-uss-solvay-pc603-07
-
[9]Village of Solvay official site ('the village is named after the Solvay brothers, Belgian inventors of the chemical process employed by the Solvay Process Company, formerly the major industry of the village'); corroborated by Wikipedia 'Solvay, New York' and 'Solvay Process Company' [other_primary]
- Locator
- DANFS Solvay entry (namesake line); solvayny.gov/about; Wikipedia 'Solvay, New York'
- Finding type
- historical_record
- Finding
- COLLISION GUARD: the Navy named this hull for the village of Solvay, Onondaga County, NY (DANFS: 'a village in Onondaga County in central New York five miles west of Syracuse'). The village itself was renamed from Geddesburgh for the Solvay brothers/Solvay Process Company soda-ash plant. 'Solvay' is therefore a high-collision term in litigation and jobsite research: New York asbestos and personal-injury dockets containing 'Solvay' typically denote the Solvay Process / Allied Chemical-Solvay industrial worksite or Solvay corporate entities, not this vessel. Any 'Solvay' litigation hit must be classified non-qualifying unless it identifies the ship or a naval context.
- Verification
- verified
- Role
- correction
- Documentation level
- context_only
- Accessed
- 2026-10-03
- Study period
- 1956 (naming); litigation-search context ongoing
- Limitations
- Naming-provenance fact plus a classification safeguard; contains no asbestos claim about the ship or the chemical plant. The ship's namesake is the village per DANFS, not the company directly.
- Atlas source
- true
- Evidence ID
- ev-uss-solvay-pc603-08