# COLORADO INTERSTATE GAS CO — Gas transmission and gathering — incident on 2016-01-02 **Citation:** PHMSA Report 20160010 **Type / status:** incident / historical **Agency:** Pipeline and Hazardous Materials Safety Administration **Effective:** 2016-01-02 **Published:** 2016-01-27 Gas transmission and gathering incident in Not Within a Municipality, ARAPAHO County, CO. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 35392 NATURAL GAS released, $14,000 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. PHMSA trend classification: significant incident, not serious. ## Document text Gas transmission and gathering incident in Not Within a Municipality, ARAPAHO County, CO. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 35392 NATURAL GAS released, $14,000 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: 20160010. Operator ID: 2564. Reported incident date: 1/2/2016 2:53. Location detail: MP 5 PLUS 498 Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT Cause detail: 02:53 CIG TOTEM STATION NOTICED PRESSURE CHANGE AT LATIGO STATION AND CALLED OUT TECHNICIANS TO RESPOND; CIG GAS CONTROL ALSO NOTICED PRESSURE CHANGE; 03:24 TECHNICIANS ARRIVED AT LATIGO STATION AND CONFIRMED TWO 6-INCH VENT VALVES WERE RELEASING NATURAL GAS; TECHNICIANS ATTEMPTED TO STOP THE NATURAL GAS RELEASE BY USE OF STATION ESD SYSTEM; STATION ESD SYSTEM DID NOT FUNCTION PROPERLY; 03:30 A LOCAL FIRE CHIEF ARRIVED, NOTIFIED BY LANDOWNERS; BY THIS TIME LANDOWNERS HAD ALSO CALLED CIG GAS CONTROL; 03:34 TECHNICIANS COMPLETED CLOSING STATION BLOCK VALVE THUS STOPPING THE RELEASE OF NATURAL GAS; WITH THE VALVE CLOSURE, THE STATION WAS SHUT IN AND ISOLATED; INVESTIGATION FOUND FROZEN AIR SUPPLY LINES INCLUDING FROZEN INSTRUMENT AIR LINES; SAID FROZEN LINES ALLOWED THE TWO 6-INCH VENT VALVES TO OPEN; SAID FROZEN LINES PREVENTED THE ESD SYSTEM FROM PROPER FUNCTION; THE AIR SUPPLY SYSTEM WAS FLUSHED; A NEW AIR DRYER WAS INSTALLED IN THE AIR SUPPLY SYSTEM; LATIGO STATION SHUT IN WAS TERMINATED 10:00, 01/07/2016; PHMSA trend classification: significant incident, not serious. PHMSA standardized cause: EQUIPMENT FAILURE — MALFUNCTION OF CONTROL/RELIEF EQUIPMENT. PHMSA indexed costs: $145,000 reported total cost, $145,872.862 in 1984 dollars, $188,325.555 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: `5fd99db81b9bec31df86a37fd400bf70bd2b9c7ed7fb13464cfe2bbea3a78cdd` - Retrieved: 2026-08-20T03:30:32.010Z - Exported: 2026-08-24T03:12:02.042Z - Document slug: `phmsa-incident-e8dc02f0702f27eca60dcaa9` ### Source metadata ```json { "recordKind": "pipeline_incident", "datasetType": "gas_transmission_gathering", "datasetLabel": "Gas transmission and gathering", "datasetPeriod": "January 2010 to present", "report": { "number": "20160010", "supplementalNumber": "17032", "type": "SUPPLEMENTAL FINAL", "receivedDate": "2016-01-27", "receivedDateRaw": "1/27/2016" }, "operator": { "id": "2564", "name": "COLORADO INTERSTATE GAS CO" }, "incident": { "date": "2016-01-02", "dateRaw": "1/2/2016 2:53" }, "location": { "city": "Not Within a Municipality", "county": "ARAPAHO", "state": "CO", "postalCode": "80103", "latitude": 39.6076779, "longitude": -104.1757159, "type": "OPERATOR-CONTROLLED PROPERTY", "details": { "DESIGNATED_NAME": "MP 5 PLUS 498" }, "facilityName": "LATIGO STORAGE" }, "cause": { "category": "EQUIPMENT FAILURE", "details": { "CAUSE_DETAILS": "MALFUNCTION OF CONTROL/RELIEF EQUIPMENT", "NARRATIVE": "02:53 CIG TOTEM STATION NOTICED PRESSURE CHANGE AT LATIGO STATION AND CALLED OUT TECHNICIANS TO RESPOND; CIG GAS CONTROL ALSO NOTICED PRESSURE CHANGE; 03:24 TECHNICIANS ARRIVED AT LATIGO STATION AND CONFIRMED TWO 6-INCH VENT VALVES WERE RELEASING NATURAL GAS; TECHNICIANS ATTEMPTED TO STOP THE NATURAL GAS RELEASE BY USE OF STATION ESD SYSTEM; STATION ESD SYSTEM DID NOT FUNCTION PROPERLY; 03:30 A LOCAL FIRE CHIEF ARRIVED, NOTIFIED BY LANDOWNERS; BY THIS TIME LANDOWNERS HAD ALSO CALLED CIG GAS CONTROL; 03:34 TECHNICIANS COMPLETED CLOSING STATION BLOCK VALVE THUS STOPPING THE RELEASE OF NATURAL GAS; WITH THE VALVE CLOSURE, THE STATION WAS SHUT IN AND ISOLATED; INVESTIGATION FOUND FROZEN AIR SUPPLY LINES INCLUDING FROZEN INSTRUMENT AIR LINES; SAID FROZEN LINES ALLOWED THE TWO 6-INCH VENT VALVES TO OPEN; SAID FROZEN LINES PREVENTED THE ESD SYSTEM FROM PROPER FUNCTION; THE AIR SUPPLY SYSTEM WAS FLUSHED; A NEW AIR DRYER WAS INSTALLED IN THE AIR SUPPLY SYSTEM; LATIGO STATION SHUT IN WAS TERMINATED 10:00, 01/07/2016;" } }, "consequences": { "fatalities": 0, "injuries": 0, "commodity": "NATURAL GAS", "release": "35392", "propertyDamage": 14000, "estimatedOperatorCost": 0, "estimatedEmergencyCost": 1000, "estimatedEnvironmentalCost": null, "ignition": "NO", "explosion": "NO", "evacuated": 0, "raw": { "FATAL": "0", "INJURE": "0", "UNINTENTIONAL_RELEASE": "35392", "EST_COST_PROP_DAMAGE": "14000", "PRPTY": "145000" } }, "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": 1234, "rowSha256": "1cf2e1fa20fc80f164b2589f4a9c805dfe84c5fa0a9fb6dc277161a15fb68b83" }, "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": "MATERIAL/WELD/EQUIP FAILURE", "sevenSubcategory": "MALFUNCTION OF CONTROL/RELIEF EQUIPMENT", "eightCategory": "EQUIPMENT FAILURE", "eightSubcategory": "MALFUNCTION OF CONTROL/RELIEF EQUIPMENT" }, "costs": { "reported": 145000, "in1984Dollars": 145872.86239314193, "currentYearDollars": 188325.55508648712 }, "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": 761, "rowSha256": "b2c2cbcfa60813bc3f3e8a43e4c8b69ac8b9ed678f36702bcc3470a6ce7e74fa" } }, "jurisdiction": "US", "operatorName": "COLORADO INTERSTATE GAS CO" } ```