# ENABLE GAS TRANSMISSION, LLC — Notice of Probable Violation

**Citation:** CPF 420161015  
**Type / status:** enforcement / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2016-12-20

CLOSED notice of probable violation citing 191.23(a)(8), 192.935(a), 192.943(b).

## Document text

Notice of Probable Violation involving ENABLE GAS TRANSMISSION, LLC. PHMSA's enforcement data identifies the cited regulations as 191.23(a)(8),  192.935(a),  192.943(b). The case was opened on 2016-12-20 and is reported as closed as of 2019-11-12. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

420161015_Closure Letter_11122019.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420161015/420161015_Closure%20Letter_11122019.pdf

420161015_Closure Letter_11122019_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420161015/420161015_Closure%20Letter_11122019_text.pdf

420161015_Final Order_09072018.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420161015/420161015_Final%20Order_09072018.pdf

420161015_Final Order_09072018_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420161015/420161015_Final%20Order_09072018_text.pdf

420161015_NOPV PCO_12202016.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420161015/420161015_NOPV%20PCO_12202016.pdf

420161015_NOPV PCO_12202016_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420161015/420161015_NOPV%20PCO_12202016_text.pdf

420161015_Operator Response to Notice_01262017.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420161015/420161015_Operator%20Response%20to%20Notice_01262017.pdf

420161015_Final Order_09072018_text.pdf

September 7, 2018
Mr. Rod J. Sailor
President and CEO
Enable Midstream Partners, LP
One Leadership Square
211 N. Robinson Ave., Suite 150
Oklahoma City, OK 73102
Re: CPF No. 4-2016-1015
Dear Mr. Sailor:
Enclosed please find the Final Order issued in the above-referenced case to your subsidiary,
Enable Gas Transmission, LLC. It makes a finding of violation and specifies actions that need to
be taken to comply with the pipeline safety regulations. When the terms of the compliance order
have been completed, as determined by the Director, Southwest Region, this enforcement action
will be closed. Service of the Final Order by certified mail is effective upon the date of mailing,
as provided under 49 C.F.R. § 190.5.
Thank you for your cooperation in this matter.
Sincerely,
Alan K. Mayberry
Associate Administrator
for Pipeline Safety
Enclosure
cc: Ms. Mary McDaniel, Director, Southwest Region, Office of Pipeline Safety, PHMSA
Mr. Paul M. Brewer, Executive Vice President – Operations, Enable Midstream Partners, LP,
211 N. Robinson Avenue, Oklahoma City, OK 73102
CERTIFIED MAIL - RETURN RECEIPT REQUESTED



U.S. DEPARTMENT OF TRANSPORTATION
PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION
OFFICE OF PIPELINE SAFETY
WASHINGTON, D.C. 20590
________________________________________________
)
In the Matter of )
)
Enable Gas Transmission, LLC, ) CPF No. 4-2016-1015
a subsidiary of Enable Midstream Partners, LP, )
)
Respondent. )
________________________________________________)
FINAL ORDER
From February 22 through November 17, 2016, pursuant to 49 U.S.C. § 60117, a representative
of the Pipeline and Hazardous Materials Safety Administration (PHMSA), Office of Pipeline
Safety (OPS), conducted an on-site pipeline safety inspection of the facilities and records of
Enable Gas Transmission, LLC (Enable or Respondent), in Arkansas, Illinois, Louisiana,
Missouri, Oklahoma, and Texas. Enable, a wholly-owned subsidiary of Enable Midstream
Partners, LP, operates several interstate pipelines located in Arkansas, Illinois, Kansas,
Louisiana, Mississippi, Missouri, Oklahoma, Tennessee and Texas, as well as storage facilities
within those states.1
As a result of the inspection, the Director, Southwest Region, OPS (Director), issued to
Respondent, by letter dated December 20, 2016, a Notice of Probable Violation and Proposed
Compliance Order (Notice), which also included warnings pursuant to 49 C.F.R. § 190.205. In
accordance with 49 C.F.R. § 190.207, the Notice proposed finding that Enable had violated
49 C.F.R. § 192.935(a) and proposed ordering Respondent to take certain measures to correct the
alleged violation. The warning items required no further action, but warned the operator to
correct the probable violations or face possible future enforcement action.
Enable Midstream Partners, LP, on behalf of Respondent, responded to the Notice by letter dated
January 26, 2017 (Response). The company did not contest the allegation of violation but
contested one of the warning items and requested clarification on the proposed compliance
actions. Respondent did not request a hearing and therefore has waived its right to one.
FINDING OF VIOLATION
In its Response, Enable did not contest the allegation in the Notice that it violated 49 C.F.R. Part
192 as follows:
1 Enable Midstream Partners, LP, website, available at https://www.enablemidstream.com/html/pages/egt html (last
accessed June 21, 2018).



CPF No. 4-2016-1015
Page 2
Item 1: The Notice alleged that Respondent violated 49 C.F.R. § 192.935(a), which states:
§ 192.935 What additional preventative and mitigative measures must
an operator take?
(a) General requirements. An operator must take additional measures
beyond those already required by Part 192 to prevent a pipeline failure and
to mitigate the consequences of a pipeline failure in a high consequence
area. An operator must base the additional measures on the threats the
operator has identified to each pipeline segment. (See § 192.917). An
operator must conduct, in accordance with one of the risk assessment
approaches in ASME/ANSI B31.8S (incorporated by reference, see
§ 192.7), section 5, a risk analysis of its pipeline to identify additional
measures to protect the high consequence area and enhance public safety.
Such additional measures include, but are not limited to, installing
Automatic Shut-off Valves or Remote Control Valves, installing
computerized monitoring and leak detection systems, replacing pipe
segments with pipe of heavier wall thickness, providing additional training
to personnel on response procedures, conducting drills with local
emergency responders and implementing additional inspection and
maintenance programs.
The Notice alleged that Respondent violated 49 C.F.R. § 192.935(a) by failing to take additional
measures beyond those already required by Part 192 to prevent a pipeline failure and to mitigate
the consequences of a pipeline failure in a High Consequence Area (HCA). Specifically, the
Notice alleged that Enable only performed extra patrols and installed line markers for certain
HCA segments, despite records indicating these segments all had external and internal corrosion
threats.
Respondent did not contest this allegation of violation.2 Accordingly, based upon a review of all
of the evidence, I find that Respondent violated 49 C.F.R. § 192.935(a) by failing to take
additional measures beyond those already required by Part 192 to prevent pipeline failure and to
mitigate the consequences of a failure in an HCA.
This finding of violation will be considered a prior offense in any subsequent enforcement action
taken against Respondent.
COMPLIANCE ORDER
The Notice proposed a compliance order with respect to Item 1 in the Notice for violation of
49 C.F.R. § 192.935(a). Under 49 U.S.C. § 60118(a), each person who engages in the
transportation of gas or who owns or operates a pipeline facility is required to comply with the
applicable safety standards established under chapter 601.
2 Enable sought clarification on this item. PHMSA responded to this request via e-mail correspondence to Enable on
November 13, 2017 (on file with PHMSA).



CPF No. 4-2016-1015
Page 3
With regard to the violation of § 192.935(a) (Item 1), Respondent argued that the compliance
terms should be modified. Specifically, Enable sought clarification on whether it needed to
schedule preventative and mitigative (P&M) measures within 60 days of receipt of the Final
Order, or whether it needed to implement these measures by the same 60-day deadline. Enable
noted that it would have difficulty implementing all identified P&M measures within 60 days,
and that if this was PHMSA’s intent, requested modification of Item 2 of the Proposed
Compliance Order (PCO) to allow it 365 days to identify, schedule, and complete all P&M
measures.
I agree that 60 days is an insufficient amount of time for Enable to implement any P&M
measures. Therefore, pursuant to the authority of 49 U.S.C. § 60118(b) and 49 C.F.R. § 190.217,
I hereby modify Item 2 of the PCO as set forth below.
Respondent is ordered to take the following actions to ensure compliance with the pipeline safety
regulations applicable to its operations:
1. With respect to the violation of § 192.935(a) (Item 1), Respondent must:
(a) Document a list of appropriate P&M measures for all the threats that were
identified during the risk analysis for each HCA segment, including external
and internal corrosion;
(b) Correctly apply and implement those P&M measures to their appropriate HCA
segment(s); and
(c) Provide PHMSA with documentation to indicate the appropriate P&M
measures have been correctly implemented to the threats identified.
2. Enable should complete Item 1 within 365 days of receipt of the Final Order.
The Director may grant an extension of time to comply with any of the required items upon a
written request timely submitted by the Respondent and demonstrating good cause for an
extension.
It is requested that Respondent maintain documentation of the safety improvement costs
associated with fulfilling this Compliance Order and submit the total to the Director. It is
requested that these costs be reported in two categories: (1) total cost associated with
preparation/revision of plans, procedures, studies and analyses; and (2) total cost associated with
replacements, additions and other changes to pipeline infrastructure.
Failure to comply with this Order may result in the administrative assessment of civil penalties
not to exceed $200,000, as adjusted for inflation (49 C.F.R. § 190.223), for each violation for



CPF No. 4-2016-1015
Page 4
each day the violation continues, or in referral to the Attorney General for appropriate relief in a
district court of the United States.
WARNING ITEMS
With respect to Items 2 and 3, the Notice alleged probable violations of Parts 191 and 192 but
did not propose a civil penalty or compliance order for these items. Therefore, these are
considered to be warning items. The warnings were for:
49 C.F.R. § 191.23(a)(8) (Item 2) ─ Respondent’s alleged failure to report in
accordance with § 191.25 the existence of a safety-related condition that could
lead to an imminent hazard and caused a 20 percent reduction in operating
pressure of a pipeline that contains or processes gas; and
49 C.F.R. § 192.943(b) (Item 3) ─ Respondent’s alleged failure to seek a waiver
of a required assessment interval at least 180 days before the end of the required
reassessment interval.
Enable requested withdrawal of Item 3 because once it became aware that a local product-supply
issue made the time period impractical, it applied for a waiver as soon as the need for the waiver
became known. Under § 190.205, PHMSA does not adjudicate warning items to determine
whether a probable violation occurred. If OPS finds a violation of any of these items in a
subsequent inspection, Respondent may be subject to future enforcement action.
Under 49 C.F.R. § 190.243, Respondent may submit a Petition for Reconsideration of this Final
Order to the Associate Administrator, Office of Pipeline Safety, PHMSA, 1200 New Jersey
Avenue, SE, East Building, 2nd Floor, Washington, DC 20590, with a copy sent to the Office of
Chief Counsel, PHMSA, at the same address, no later than 20 days after receipt of service of this
Final Order by Respondent. Any petition submitted must contain a statement of the issue(s) and
meet all other requirements of 49 C.F.R. § 190.243. The terms of the order, including corrective
action, remain in effect unless the Associate Administrator, upon request, grants a stay.
The terms and conditions of this Final Order are effective upon service in accordance with
49 C.F.R. § 190.5.
September 7, 2018
___________________________________ __________________________
Alan K. Mayberry Date Issued
Associate Administrator
for Pipeline Safety

420161015_Closure Letter_11122019_text.pdf

CERTIFIED MAIL - RETURN RECEIPT REQUESTED
November 12, 2019
Rod J. Sailor
President and CEO
Enable Midstream Partners, LP
211 N. Robinson Ave., Suite 150
Oklahoma City, OK 73102
CPF 4-2016-1015
Dear Mr. Sailor:
On September 7, 2018, the Pipeline and Hazardous Materials Safety Administration (PHMSA)
issued to your subsidiary, Enable Gas Transmission, LLC., a Final Order in the above-referenced
case. This Final Order included a Compliance Order.
Based on our review of the documentation provided, it has been determined that you have complied
with the terms of this Order.
Accordingly, this case is now closed and no further action is contemplated with respect to the
matters involved in this case. Thank you for your cooperation in this matter.
Sincerely,
Mary L. McDaniel, P.E.
Director, Southwest Region
Pipeline and Hazardous Materials Safety Administration

## Provenance

- Official: Yes
- Source: <https://primis.phmsa.dot.gov/enforcement-data/case/420161015>
- Source ID: `phmsa-enforcement`
- SHA-256: `5ab27a85b5d1f353b74e497cc2e12d8262ff2091ea853b7c062b81ffeae081fe`
- Retrieved: 2026-08-20T04:44:44.458Z
- Exported: 2026-08-23T11:54:46.153Z
- Document slug: `phmsa-enforcement-420161015`

### Source metadata

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  "pipelineType": "GAS INTERSTATE ONSHORE",
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  "citedSections": [
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    "192.935(a)",
    "192.943(b)"
  ],
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