Incidenthistorical
PHMSA Report 20190054
EAST TENNESSEE NATURAL GAS, LLC (SPECTRA ENERGY PARTNERS, LP) — Gas transmission and gathering — incident on 2019-04-04
Current as of 2019-04-04 Government source
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Gas transmission and gathering incident in OAK RIDGE, ANDERSON County, TN. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 3138 NATURAL GAS released, $1,000 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: 20190054.
Operator ID: 4070.
Reported incident date: 4/4/2019 21:17.
Location detail: 9.377
Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT
Cause detail: ORIGINAL REPORT: 48 HR NRC REPORT 1242022 AT APPROXIMATELY 9:17 PM EST ON APRIL 4, 2019, EAST TENNESSEE NATURAL GAS (ETNG) WAS NOTIFIED BY A UTILITY COMPANY EMPLOYEE ABOUT A NATURAL GAS RELEASE AT ETNG'S METER AND REGULATOR STATION (M&R 59021) IN ANDERSON COUNTY, TN. ETNG PERSONNEL ARRIVED AT M&R 59021 AT APPROXIMATELY 9:58 PM EST AND DISCOVERED NATURAL GAS RELEASE FROM A RELIEF VALVE. ETNG PERSONNEL SUBSEQUENTLY ISOLATED THE RELIEF VALVE. THE APPARENT CAUSE WAS A COLLAPSED SUPPLY GAS FILTER ON THE UPSTREAM REGULATOR THAT STOPPED THE SUPPLY GAS TO THE BOOT AND RESULTING IN THE REGULATOR TO FAIL OPEN.
PHMSA trend classification: not significant, not serious.
PHMSA standardized cause: EQUIPMENT FAILURE — MALFUNCTION OF CONTROL/RELIEF EQUIPMENT.
PHMSA indexed costs: $8,720 reported total cost, $8,472.227 in 1984 dollars, $10,981.197 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.
This material provides agency context. It does not replace binding regulatory text, and its legal effect depends on the underlying authority and facts.