# SOUTHERN NATURAL GAS CO. — Gas transmission and gathering annual report (1979)

**Citation:** PHMSA Annual Report 790148 (1979)  
**Type / status:** inspection / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1979-12-31

Gas transmission and gathering; reporting year 1979; AL. Operator-reported infrastructure data.

## Document text

Gas transmission and gathering annual report for reporting year 1979, submitted by SOUTHERN NATURAL GAS CO. (operator 18516). Reported scope: AL. Represented states: AL. Selected reported fields: transmission miles: 6899; gathering miles: 3; leaks corrosion: 245; leaks outside force: 7; leaks construction defect: 12; leaks material failure: 10; leaks other: 123. The sortable date is the reporting-period end, not the operator submission date.

## Provenance

- Official: Yes
- Source: <https://data.transportation.gov/d/aemm-7pyq>
- Source ID: `phmsa-annual-reports`
- SHA-256: `2bb9a5a6d1a378efa923f7302c49e8679766a1d75f0d9166a05e25b040561e50`
- Retrieved: 2026-08-13T02:59:50.318Z
- Exported: 2026-08-26T04:12:36.385Z
- Document slug: `phmsa-annual-928f9e12e3c36380746ec664`

### Source metadata

```json
{
  "materialSubtype": "phmsa_pipeline_annual_report",
  "dataset": "gas_transmission_gathering",
  "reportYear": 1979,
  "reportNumber": "790148",
  "supplementalNumber": null,
  "sourceFormat": "legacy_xls",
  "operator": {
    "id": "18516",
    "name": "SOUTHERN NATURAL GAS CO."
  },
  "region": "AL",
  "commodity": null,
  "representedStates": [
    "AL"
  ],
  "jurisdictionClasses": [],
  "facilities": [],
  "metrics": {
    "TRANSMISSION_MILES": 6899,
    "GATHERING_MILES": 3,
    "LEAKS_CORROSION": 245,
    "LEAKS_OUTSIDE_FORCE": 7,
    "LEAKS_CONSTRUCTION_DEFECT": 12,
    "LEAKS_MATERIAL_FAILURE": 10,
    "LEAKS_OTHER": 123
  },
  "dependentRowsBySheet": {},
  "dataAsOf": null,
  "reportingPeriodEnd": "1979-12-31",
  "dateBasis": "calendar_year_end_not_submission_date",
  "provenance": {
    "archive": "annual_gas_transmission_gathering_1970_2000.zip",
    "archiveSha256": "0045b2ed5b6e0037084234547050cf80d07aa8c8444155af8f8c651a8b2d0bdd",
    "workbook": "annual_gas_transmission_gathering_1970_1989.xls",
    "sheet": "1970-1979",
    "rowNumber": 4878,
    "sourceRowNumbers": [
      4878
    ],
    "rowSha256": "d1e25a199b950e9af8961b7777fb349ebbbfe8ee4b207d13bf108f4ab88da11a"
  },
  "caveat": "Operator-reported annual infrastructure data may be corrected. The indexed date is the reporting-period end, not the submission date, and the record is not an agency finding about current facility condition.",
  "jurisdiction": "US",
  "operatorName": "SOUTHERN NATURAL GAS CO."
}
```