# CHEVRON PIPE LINE CO — Gas transmission and gathering — incident on 2018-10-17 **Citation:** PHMSA Report 20180113 **Type / status:** incident / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective:** 2018-10-17 **Published:** 2018-11-15 Gas transmission and gathering incident in BAY POINT, CONTRA COSTA County, CA. Reported cause: OTHER OUTSIDE FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 7.1 NATURAL GAS released, $327,442 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. ## Document text Gas transmission and gathering incident in BAY POINT, CONTRA COSTA County, CA. Reported cause: OTHER OUTSIDE FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 7.1 NATURAL GAS released, $327,442 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: 20180113. Operator ID: 2731. Reported incident date: 10/17/2018 19:47. Location detail: MILEPOST 29.2 Cause detail: ELECTRICAL ARCING FROM OTHER EQUIPMENT OR FACILITY Cause detail: 10/17/2018 17:48- FIRE DEPARTMENT DISPATCHED TO FIRE ON RIGHT OF WAY(ROW) DUE TO DOWNED POWERLINE 18:30- FIRE DEPARTMENT NOTIFIED CONTROL CENTER OF FIRE ON ROW 18:37- CONTROL CENTER NOTIFIED FIELD TEAM MEMBER ABOUT FIRE ON ROW MILEPOST 29.2 18:39- FIELD TEAM MEMBER NOTIFIED TEAM LEADER OF FIRE 19:26- FIELD TEAM MEMBER ARRIVES ON SITE AND ESTABLISHES UNIFIED COMMAND WITH FIRE DEPARTMENT 19:31- UPDATE TO TEAM LEADER OF CURRENT SITUATION 19:47- FIELD TEAM MEMBER NOTIFIES CONTROL HE HEARS HISSING FROM PIPELINE 19:48- CONTROL CENTER BLOCKED IN PIPELINE(SHUTDOWN) 20:20- TEAM LEADER ON SITE 20:34- FIRE DEPARTMENT ESTABLISHES HOT ZONE WITH NO ENTRY 21:26- COMMAND POST SET UP 22:08- LAW ENFORCEMENT BEGINS EVACUATIONS OF HOMES 10/18/2018 15:04- FIRE CONFIRMED OUT AND EVACUATION IS LIFTED 10/19/2018 NITROGEN PURGE OF PIPELINE LOS MEDANOS TO AVON WORK CONTINUES TO FIX VALVE. 10/25/2018 FIRST DAY OF RESTART OF PIPELINE 10/26/2018 APPROXIMATELY 21:10 LINE IS FULLY OPERATIONAL AND RUNNING IT WAS CONFIRMED THE SOURCE OF THE FAILURE ON THE PIPELINE WAS ARCING FROM THE VALVE BOX INTO THE PIPELINE CAUSED BY A DOWNED POWERLINE ACROSS THE VALVE BOX. PHMSA trend classification: significant incident, not serious. PHMSA standardized cause: OTHER OUTSIDE FORCE DAMAGE — ELECTRICAL ARCING. PHMSA indexed costs: $430,307 reported total cost, $206,859.738 in 1984 dollars, $506,128.225 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. ## Provenance - Official: Yes - Source: - Source ID: `phmsa-pipeline-incidents` - SHA-256: `8c068a8d5473a54dbaff806e7ae01b0ec70965bde83b0ced59f4fb671ec9eac3` - Retrieved: 2026-08-20T03:30:32.010Z - Exported: 2026-08-24T11:11:41.719Z - Document slug: `phmsa-incident-7b9718891e21f0fc19970971` ### Source metadata ```json { "recordKind": "pipeline_incident", "datasetType": "gas_transmission_gathering", "datasetLabel": "Gas transmission and gathering", "datasetPeriod": "January 2010 to present", "report": { "number": "20180113", "supplementalNumber": "32471", "type": "SUPPLEMENTAL FINAL", "receivedDate": "2018-11-15", "receivedDateRaw": "11/15/2018" }, "operator": { "id": "2731", "name": "CHEVRON PIPE LINE CO" }, "incident": { "date": "2018-10-17", "dateRaw": "10/17/2018 19:47" }, "location": { "city": "BAY POINT", "county": "CONTRA COSTA", "state": "CA", "postalCode": "94565", "latitude": 38.031617, "longitude": -121.935216, "type": "PIPELINE RIGHT-OF-WAY", "details": { "DESIGNATED_NAME": "MILEPOST 29.2" }, "facilityName": "NORTHERN CALIFORNIA NATURAL GAS PIPELINE" }, "cause": { "category": "OTHER OUTSIDE FORCE DAMAGE", "details": { "CAUSE_DETAILS": "ELECTRICAL ARCING FROM OTHER EQUIPMENT OR FACILITY", "NARRATIVE": "10/17/2018 17:48- FIRE DEPARTMENT DISPATCHED TO FIRE ON RIGHT OF WAY(ROW) DUE TO DOWNED POWERLINE 18:30- FIRE DEPARTMENT NOTIFIED CONTROL CENTER OF FIRE ON ROW 18:37- CONTROL CENTER NOTIFIED FIELD TEAM MEMBER ABOUT FIRE ON ROW MILEPOST 29.2 18:39- FIELD TEAM MEMBER NOTIFIED TEAM LEADER OF FIRE 19:26- FIELD TEAM MEMBER ARRIVES ON SITE AND ESTABLISHES UNIFIED COMMAND WITH FIRE DEPARTMENT 19:31- UPDATE TO TEAM LEADER OF CURRENT SITUATION 19:47- FIELD TEAM MEMBER NOTIFIES CONTROL HE HEARS HISSING FROM PIPELINE 19:48- CONTROL CENTER BLOCKED IN PIPELINE(SHUTDOWN) 20:20- TEAM LEADER ON SITE 20:34- FIRE DEPARTMENT ESTABLISHES HOT ZONE WITH NO ENTRY 21:26- COMMAND POST SET UP 22:08- LAW ENFORCEMENT BEGINS EVACUATIONS OF HOMES 10/18/2018 15:04- FIRE CONFIRMED OUT AND EVACUATION IS LIFTED 10/19/2018 NITROGEN PURGE OF PIPELINE LOS MEDANOS TO AVON WORK CONTINUES TO FIX VALVE. 10/25/2018 FIRST DAY OF RESTART OF PIPELINE 10/26/2018 APPROXIMATELY 21:10 LINE IS FULLY OPERATIONAL AND RUNNING IT WAS CONFIRMED THE SOURCE OF THE FAILURE ON THE PIPELINE WAS ARCING FROM THE VALVE BOX INTO THE PIPELINE CAUSED BY A DOWNED POWERLINE ACROSS THE VALVE BOX." } }, "consequences": { "fatalities": 0, "injuries": 0, "commodity": "NATURAL GAS", "release": "7.1", "propertyDamage": 327442, "estimatedOperatorCost": 0, "estimatedEmergencyCost": 100000, "estimatedEnvironmentalCost": null, "ignition": "YES", "explosion": "NO", "evacuated": 4000, "raw": { "FATAL": "0", "INJURE": "0", "UNINTENTIONAL_RELEASE": "7.1", "EST_COST_PROP_DAMAGE": "327442", "PRPTY": "430307" } }, "provenance": { "viewId": "27nc-rsge", "viewUrl": "https://data.transportation.gov/api/views/27nc-rsge", "assetId": "2b05c2d8-d14a-4c56-ac1c-7d23a4bc31c8", "archiveFilename": "Gas Transmission & Gathering Incident Data - January 2010 to present.zip", "archiveSha256": "fe0b136ca4b00ac987a8bc2e195098accf910d97512c5fc3b59e62d9da5f674e", "memberPath": "incident_gas_transmission_gathering_jan2010_present.txt", "memberSha256": "b435f2a25718cf54c54e00294e6788c4f9c6860e02fb86355e75d294c243c4dd", "rowNumber": 927, "rowSha256": "51bd1d9992c6bb233df4a97ad30f26449c9fc0850f8442ccd84131da83697aea" }, "caveat": "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.", "operatorReported": true, "finalAgencyFinding": false, "flaggedAnalysis": { "dataAsOf": "2026-07-31", "flags": { "fireFirst": null, "significant": true, "serious": false }, "standardizedCause": { "sevenCategory": "OTHER OUTSIDE FORCE DAMAGE", "sevenSubcategory": "ELECTRICAL ARCING FROM OTHER EQUIPMENT/FACILITY", "eightCategory": "OTHER OUTSIDE FORCE DAMAGE", "eightSubcategory": "ELECTRICAL ARCING" }, "costs": { "reported": 430307, "in1984Dollars": 206859.73824860147, "currentYearDollars": 506128.22510558524 }, "caveat": "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.", "provenance": { "sourceUrl": "https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/data_statistics/pipeline/PHMSA_Pipeline_Safety_Flagged_Incidents.zip", "landingPageUrl": "https://www.phmsa.dot.gov/data-and-statistics/pipeline/pipeline-incident-flagged-files", "catalogUrl": "https://data.transportation.gov/Pipelines-and-Hazmat/Pipeline-Incident-Flagged-Files/qdme-9bbm", "retrievalMode": "official_live", "archivedAt": null, "archiveSha256": "317e6a3e16d60b9b677efe391dc40258b5dd7ead83fb8bea74cb553cedfbbdec", "workbook": "gtggungs2010toPresent.xlsx", "sheet": "gtggungs2010toPresent", "rowNumber": 1073, "rowSha256": "a568a4d6a7350e8f668ab487c06a1e7456eb84a4fefff5ba38699d6b70a93689" } }, "jurisdiction": "US", "operatorName": "CHEVRON PIPE LINE CO" } ```