{"operation":"document","citation":"PHMSA Report 20110395","title":"QUESTAR PIPELINE COMPANY — Gas transmission and gathering — incident on 2011-11-18","source_type":"incident","agency":"Pipeline and Hazardous Materials Safety Administration","status":"historical","official":true,"published_on":"2011-12-13","effective_on":"2011-11-18","summary":"Gas transmission and gathering incident in NEAR GREEN RIVER, SWEETWATER County, WY. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 0 NATURAL GAS released, $0 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: not significant, not serious.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-incident-0b789f748f5236b9fb2faae3.json","markdown":"https://regulus.evalyn.ai/document/phmsa-incident-0b789f748f5236b9fb2faae3.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-incident-0b789f748f5236b9fb2faae3","source_url":"https://data.transportation.gov/api/views/27nc-rsge/files/2b05c2d8-d14a-4c56-ac1c-7d23a4bc31c8?download=true&filename=Gas%20Transmission%20%26%20Gathering%20Incident%20Data%20-%20January%202010%20to%20present.zip","body":"Gas transmission and gathering incident in NEAR GREEN RIVER, SWEETWATER County, WY. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 0 NATURAL GAS released, $0 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.\n\nReport number: 20110395.\n\nOperator ID: 12874.\n\nReported incident date: 11/18/2011 17:00.\n\nLocation detail: MP 95.97\n\nCause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT\n\nCause detail: SUPPLEMENTAL BEING FILED TO CLARIFY THE INCIDENT CAUSE. REGULATOR FROZE-OFF AND CAUSED THE STATION PRESSURE TO RISE TO THE RELIEF VALVE SET-POINT, THUS ACTIVATING THE RELIEF VALVE AS INTENDED. THE RELIEF VALVE OPERATED AS DESIGNED AND RELIEVED TO PREVENT OVER-PRESSURIZATION ON THE DOWNSTREAM PIPING.\n\nPHMSA trend classification: not significant, not serious.\n\nPHMSA standardized cause: EQUIPMENT FAILURE — MALFUNCTION OF CONTROL/RELIEF EQUIPMENT.\n\nPHMSA indexed costs: $25,300 reported total cost, $17,700.871 in 1984 dollars, $21,932.675 in current-year dollars.\n\nPHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.","truncated":false,"body_characters":1317}