# EAST TENNESSEE NATURAL GAS, LLC (SPECTRA ENERGY PARTNERS, LP) — Gas transmission and gathering — incident on 2018-05-21

- **operation:** document
- **citation:** PHMSA Report 20180059
- **title:** EAST TENNESSEE NATURAL GAS, LLC (SPECTRA ENERGY PARTNERS, LP) — Gas transmission and gathering — incident on 2018-05-21
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2018-06-08
- **effective on:** 2018-05-21
- **summary:** Gas transmission and gathering incident in Not Within a Municipality, GRUNDY County, TN. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 3 NATURAL GAS released, $251,000 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings. PHMSA trend classification: significant incident, not serious.
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**body:**

Gas transmission and gathering incident in Not Within a Municipality, GRUNDY County, TN. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 3 NATURAL GAS released, $251,000 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20180059.

Operator ID: 4070.

Reported incident date: 5/21/2018 16:15.

Location detail: 35.56

Cause detail: EXTERNAL CORROSION

Cause detail: A NATURAL GAS PIN HOLE LEAK WAS DISCOVERED DURING A CORROSION ANOMALY INVESTIGATION ON THE EAST TENNESSEE NATURAL GAS 12-INCH LINE 3200-1 AT MILE POST 35.56 NEAR TRACY CITY, TENNESSEE AT 4:15 PM, MAY 21, 2018. THE CAUSE OF THE PIN HOLE WAS EXTERNAL CORROSION. THE PIPE REPLACEMENT WAS COMPLETED JULY 20, 2018.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — EXTERNAL.

PHMSA indexed costs: $256,052 reported total cost, $124,617.552 in 1984 dollars, $301,069.192 in current-year dollars.

PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.
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