Incidenthistorical
PHMSA Report 19930207
COLONIAL PIPELINE CO — Hazardous liquid — incident on 1993-11-01
Current as of 1993-11-01 Government source
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Hazardous liquid incident in MAGNOLIA, PIKE County, MS. Reported cause: OTHER. Reported consequences: 0 fatalities, 0 injuries, 50 GASOLINE released, $5,000 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: 19930207.
Operator ID: 2552.
Reported incident date: 19931101.
Location detail: COLONIAL PIPELINE COMPANY'S MCCOMB STATION.
Cause detail: CHECK VALVE SEAL FAILURE
Cause detail: AT 1850 EST ON NOVEMBER 1, 1993, THE LINE NO 1 CONTROLLER RECEIVED A HIGH SUMP ALARM AT THE MCCOMB PUMP STATION. A TECHNICIAN WAS DISPATCHED TO INVESTIGATE AND UPON ARRIVAL AT 2056 EST DISCOVERED GASOLINE ON THE GROUND NEAR THE NO.1 UNIT. WHEN IT BECAME APPARENT THAT THE INCIDENT WOULD QUALIFY AS A D.O.T. REPORTABLE LEAK, THE NATIONAL RESPONSE CENTER WAS NOTIFIED AT 2232 EST (REPORT NO. 205883). OTHER AGENCIES NOTIFIED INCLUDE THE MISSISSIPPI EMERGENCY MANAGEMENT AGENCY AND EPA REGION IV. ON NOVEMBER 2, EXCAVATION OF THE STATION PIPING REVEALED THE SOURCE OF THE LEAK TO BE A SEAL FAILURE ON THE INBOARD SPRINGCOVER OF THE NO.2 UNIT CHECK VALVE. REPAIRS TO THE CHECK VALVE WERE MADE BY INSTALLING NEW PACKING AND REPLACING THE PACKING GLAND PLATES AND VALVE SPRINGCOVERS WITH IMPROVED DESIGNS. IT IS ESTIMATED THAT 50 BARRELS OF GASOLINE WERE RELEASED INTO THE SURROUNDING SOIL AND TO DATE, 38 BARRELS HAVE BEEN RECOVERED AND RETURNED TO THE SYSTEM. THE CONTAMINATED SOIL IS CURRENTLY BEING STORED IN A PLASTIC ENVELOPE FOR REMEDIATION.
PHMSA trend classification: significant incident, not serious.
PHMSA standardized cause: ALL OTHER CAUSES — MISCELLANEOUS.
PHMSA indexed costs: $5,000 reported total cost, $3,825.537 in 1984 dollars, $9,421.121 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.