# ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC — Gas transmission and gathering — incident on 2018-10-20

- **operation:** document
- **citation:** PHMSA Report 20180112
- **title:** ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC — Gas transmission and gathering — incident on 2018-10-20
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2018-11-13
- **effective on:** 2018-10-20
- **summary:** Gas transmission and gathering incident in MINCO, GRADY County, OK. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 4200 NATURAL GAS released, $35,000 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: not significant, not serious.
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**body:**

Gas transmission and gathering incident in MINCO, GRADY County, OK. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 4200 NATURAL GAS released, $35,000 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: 20180112.

Operator ID: 26330.

Reported incident date: 10/20/2018 9:30.

Location detail: L-107

Cause detail: EXCAVATION DAMAGE BY THIRD PARTY

Cause detail: EXCAVATION ISSUE

Cause detail: IMPROPER BACKFILLING PRACTICES

Cause detail: ON OCTOBER 20TH A CONTRACTOR (BENNETT CONSTRUCTION) WORKING FOR CARDINAL MIDSTREAM STRUCK ENABLE OKLAHOMA INTRASTATE TRANSMISSION LINE 107 CAUSING SMALL LEAK SIGNIFICANT ENOUGH TO REROUTE GAS AND BLOW DOWN AND REPLACE PIPE. THIS SECTION OF L-107 HAD BEEN PREVIOUSLY MARKED BY ENABLE WHO MADE POSITIVE CONTACT WITH BENNET ON 10/18/18 REQUESTING NOTIFICATION BEFORE DIGGING. IT WAS ALSO DISCUSSED ON 10/18/18 THAT ENABLE PERSONNEL WOULD MEET WITH BENNETT ON MONDAY, 10/22/2018, WHILE THEY CROSSED LINE 107. BENNETT WORKED ON SATURDAY 10/20/18 WITHOUT ENABLE OR CARDINAL KNOWLEDGE (AND WITHOUT ENABLE PERSONNEL PRESENT), AND DID NOT RESPECT THE 24" TOLERANCE ZONE. ENABLE DID NOT RECEIVE CALL FOR WORK THAT WAS PERFORMED ON 10/20/18. L-107 WAS COMPLETELY PUT BACK INTO SERVICE AND RELEASED TO SYSTEM CONTROL TO RESUME NORMAL OPERATIONS AT APPROXIMATELY 8:00 PM 10/21/2018. A NOTIFICATION WAS PROVIDED TO THE NRC (#1228020) ON 10/20/18 AT 12:45 AND A 48 HR. FOLLOW UP (# 1228152) WAS PROVIDED ON 10/22/18 AT 11:28. AFTER REVIEW OF THE NRC ARCHIVE, #1228184 WAS ADDED TO THIS INCIDENT AS WELL.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: EXCAVATION DAMAGE — THIRD PARTY EXCAVATION DAMAGE.

PHMSA indexed costs: $51,960 reported total cost, $31,416.178 in 1984 dollars, $60,694.479 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.
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