{"operation":"document","citation":"PHMSA Report 20140009","title":"CONSUMERS ENERGY CO — Gas transmission and gathering — incident on 2013-12-21","source_type":"incident","agency":"Pipeline and Hazardous Materials Safety Administration","status":"historical","official":true,"published_on":"2014-01-20","effective_on":"2013-12-21","summary":"Gas transmission and gathering incident in HAMILTON, ALLEGAN County, MI. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 6648 NATURAL GAS released, $500 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-22d14d56fa300991ea2a4e7b.json","markdown":"https://regulus.evalyn.ai/document/phmsa-incident-22d14d56fa300991ea2a4e7b.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-incident-22d14d56fa300991ea2a4e7b","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 HAMILTON, ALLEGAN County, MI. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 6648 NATURAL GAS released, $500 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: 20140009.\n\nOperator ID: 2748.\n\nReported incident date: 12/21/2013 22:33.\n\nCause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT\n\nCause detail: AT APPROXIMATELY 10:33 PM ON DECEMBER 21, 2013, BLOWDOWN VALVE 614 AT OVERISEL COMPRESSOR STATION TRAVELED OPEN AND VENTED GAS TO ATMOSPHERE THROUGH THE STATION EMERGENCY SHUT-DOWN VENT FOR APPROXIMATELY 57 MINUTES. IN TOTAL, ABOUT 6.65 MMCF WAS VENTED TO ATMOSPHERE. PER MANUFACTURER'S RECOMMENDATION, CONSUMERS ENERGY IS PURSUING PLANS TO INSTALL WEATHER-TIGHT ENCLOSURES AND/OR NEW PILOT ASSEMBLIES FOR ALL BIFFI-STYLE VALVES IDENTIFIED AT ITS COMPRESSOR STATIONS. WHERE IMPLEMENTED, THE ENCLOSURES WILL HOUSE THE PILOT VALVE AS WELL AS THE CONTROLLER. AS A NEAR-TERM MEASURE, VALVES ARE BEING MONITORED REGULARLY FOR ICE BUILD-UP TO PREVENT RE-OCCURRENCE. ADDITIONALLY, VENT REPLACEMENT IS IN PROGRESS FOR ALL IDENTIFIED BIFFI VALVES AND IS SCHEDULED FOR COMPLETION BY JANUARY 31, 2014. IN THE EVENT OF A LEAKING SHAFT SEAL, UNRESTRICTED VENTS WILL HELP PREVENT PRESSURE BUILD-UP AT THE VALVE ACTUATOR, THUS PREVENTING THE BLOWDOWN VALVE FROM IMPROPER OPERATION.\n\nPHMSA trend classification: not significant, not serious.\n\nPHMSA standardized cause: EQUIPMENT FAILURE — MALFUNCTION OF CONTROL/RELIEF EQUIPMENT.\n\nPHMSA indexed costs: $32,395 reported total cost, $26,002.219 in 1984 dollars, $32,405.803 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":1949}