# Operation Factual - Appendix 2 - Graphical Depiction of Root Rock and Incident Pipe Main near Unit 80

**Citation:** DCA14MP001 docket item 30  
**Type / status:** incident / current  
**Agency:** National Transportation Safety Board  
**Effective:** Not stated  
**Published:** Not stated

DCA14MP001; docket item 30; Adobe PDF file.

## Document text

Operation Factual - Appendix 2 - Graphical Depiction of Root Rock and Incident Pipe Main near Unit 80 DCA14MP001 docket item 30. 1 page. 0 photograph references. Published media type: Adobe PDF file. Metadata only; the linked docket file is not mirrored.

## Provenance

- Official: Yes
- Source: <https://data.ntsb.gov/Docket/Document/docBLOB?ID=40439101&FileExtension=.PDF&FileName=Operation%20Factual%20-%20Appendix%202%20-%20Graphical%20Depiction%20of%20Root%20Rock%20and%20Incident%20Pipe%20Main%20near%20Unit%2080-Master.PDF>
- Source ID: `ntsb-dockets`
- SHA-256: `ccab08a33a2b59b21166c9616fac92a2fc36db2ba4af4cde495533c282988066`
- Retrieved: 2026-08-20T04:58:09.797Z
- Exported: 2026-08-23T15:58:26.546Z
- Document slug: `ntsb-docket-item-40439101`

### Source metadata

```json
{
  "materialSubtype": "ntsb_docket_item_metadata",
  "ntsbNumber": "DCA14MP001",
  "blobId": "40439101",
  "ordinal": 30,
  "pages": 1,
  "photos": 0,
  "publishedMediaType": "Adobe PDF file",
  "fileExtension": ".PDF",
  "fileName": "Operation Factual - Appendix 2 - Graphical Depiction of Root Rock and Incident Pipe Main near Unit 80-Master.PDF",
  "docketUrl": "https://data.ntsb.gov/Docket/?NTSBNumber=DCA14MP001",
  "tableOfContentsUrl": "https://data.ntsb.gov/Docket/TOCPrintable?data=88558",
  "docketReportedMode": "Pipeline",
  "docketCreationDate": "2014-01-27",
  "docketLastModifiedDate": "2018-09-11",
  "docketPublicReleaseDate": "2016-04-20",
  "metadataOnly": true,
  "binaryMirrored": false,
  "caveat": "Docket item metadata and official link only. The title does not establish authorship, evidentiary weight, NTSB endorsement, legal effect, or a current regulatory finding; party submissions and evidence binaries are not mirrored.",
  "jurisdiction": "US"
}
```