# EQUITRANS MIDSTREAM CORPORATION — Warning Letter

- **operation:** document
- **citation:** CPF 12022029WL
- **title:** EQUITRANS MIDSTREAM CORPORATION — Warning Letter
- **source type:** enforcement
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2022-03-15
- **effective on:** Not available
- **summary:** CLOSED warning letter citing 192.12(b)(2).
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-enforcement-12022029wl.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-enforcement-12022029wl.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-enforcement-12022029wl
- **source url:** https://primis.phmsa.dot.gov/enforcement-data/case/12022029WL
**body:**

Warning Letter involving EQUITRANS MIDSTREAM CORPORATION. PHMSA's enforcement data identifies the cited regulation as 192.12(b)(2). The case was opened on 2022-03-15 and is reported as closed as of 2022-03-15. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

12022029WL_Warning Letter_03152022_(20-173105).pdf: https://primis.phmsa.dot.gov/enforcement-documents/12022029WL/12022029WL_Warning%20Letter_03152022_(20-173105).pdf

12022029WL_Warning Letter_03152022_(20-173105)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/12022029WL/12022029WL_Warning%20Letter_03152022_(20-173105)_text.pdf

12022029WL_Warning Letter_03152022_(20-173105)_text.pdf

WARNING LETTER
OVERNIGHT EXPRESS DELIVERY
March 15, 2022
Mr. Gregg West
Vice President Midstream Operations
Equitrans Midstream Corporation
2200 Energy Drive
Canonsburg, Pennsylvania 15317
CPF 1-2022-029-WL
Dear Mr. West:
From October 13, 2020, through July 15, 2021, a representative of the Pipeline and Hazardous
Materials Safety Administration (PHMSA) pursuant to Chapter 601 of 49 United States Code
(U.S.C.) inspected Equitrans Midstream Corporation’s (ETRN) Tepe, Finleyville, and Webster
Underground Natural Gas Storage Fields in Pennsylvania.
As a result of the inspection, it is alleged that you have committed probable violations of the
Pipeline Safety Regulations, Title 49, Code of Federal Regulations (CFR). The items inspected
and the probable violations are:
1. § 192.12 Underground natural gas storage facilities.
(a) …
(b) Depleted hydrocarbon and aquifer reservoir UNGSFs.
(1) …
(2) Each UNGSF that uses a depleted hydrocarbon reservoir or an
aquifer reservoir for natural gas storage and was constructed on or
before July 18, 2017, must meet the provisions of API RP 1171
(incorporated by reference, see § 192.7), sections 8, 9, 10, and 11, and
paragraph (c) of this section, by January 18, 2018, and must meet all
provisions of paragraph (d) of this section by March 13, 2021.



CPF 1-2022-029-WL
ETRN failed to meet the provisions of API RP1171, Section 9. Specifically, ETRN failed to
demonstrate that wellhead assemblies are monitored for leaks as required under API 1171, Section
9.3.2.
Section 9.3.2 states “The operator shall visually inspect each wellhead assembly at least annually
for leaks.”
During the inspection, ETRN stated that visual inspections are conducted in conjunction with the
annulus gas inspections. However, the results of the wellhead leak inspections are not captured in
the record keeping database system (MAXIMO) due to a lack of fields to enter the data. No records
were available to demonstrate compliance. ETRN also indicated that MAXIMO is being updated
to better reflect the actual work/inspections being done in the field.
Therefore, ETRN failed to meet the provisions of Section 9.3.2.
2. § 192.12 Underground natural gas storage facilities.
(a) …
(b) Depleted hydrocarbon and aquifer reservoir UNGSFs.
(1) …
(2) Each UNGSF that uses a depleted hydrocarbon reservoir or an
aquifer reservoir for natural gas storage and was constructed on or
before July 18, 2017, must meet the provisions of API RP 1171
(incorporated by reference, see § 192.7), sections 8, 9, 10, and 11, and
paragraph (c) of this section, by January 18, 2018, and must meet all
provisions of paragraph (d) of this section by March 13, 2021.
ETRN failed to meet the provisions of API RP 1171, Section 8. Specifically, ETRN failed to
provide adequate documentation of the risk evaluation and decision basis for preventative and
mitigative (P&M) measures, as required by API RP 1171, Section 8.5.2.
Section 8.5.2 states “The operator shall review the results of the risk assessment to determine
whether the risk assessment, resulting prioritization, or ranking represents its facilities and
characterizes the risks. Review may be performed by personnel familiar with storage operations,
risk management, and methods or analyzing risk and results.”
During the inspection, assessment reviews were reviewed from 2018, 2019, and 2020. ETRN
stated that risk assessment reviews consist of monthly and annual meetings and review of data as
it becomes available. ETRN was unable to provide adequate documentation of the risk assessment
reviews. No assessment review documentation, such as attendance sheets, meeting minutes, or
reviewer logs were provided.
Therefore, ETRN failed to meet the provisions of Section 8.5.2.
12022029WL_Warning Letter_03152022_(20-173105)_text Page 2 of 4



CPF 1-2022-029-WL
3. § 192.12 Underground natural gas storage facilities.
(a) …
(b) Depleted hydrocarbon and aquifer reservoir UNGSFs.
(1) …
(2) Each UNGSF that uses a depleted hydrocarbon reservoir or an
aquifer reservoir for natural gas storage and was constructed on or
before July 18, 2017, must meet the provisions of API RP 1171
(incorporated by reference, see § 192.7), sections 8, 9, 10, and 11, and
paragraph (c) of this section, by January 18, 2018, and must meet all
provisions of paragraph (d) of this section by March 13, 2021.
ETRN failed to meet the provisions of API RP1171, Section 9. Specifically, ETRN failed to test
its master and wellhead pipeline isolation valves for proper function and ability to isolate the well
pursuant to API RP 1171, Section 9.3.2 (Section 9.3.2).
Section 9.3.2 requires the operator to test the operation of the master valve and wellhead pipeline
isolation valve for proper function and the ability to isolate the well.
During the inspection, ETRN stated that the master valve and wellhead pipeline isolation valve(s)
are only partially operated during valve inspections on storage wells. It is PHMSA’s position that
these valves must be fully operated (full open/full closed) to demonstrate the proper function of
the valve and the ability to isolate the well.
Therefore, ETRN failed to meet the provisions of Section 9.3.2 regarding testing the operation of
its wellhead valves.
Under 49 U.S.C. § 60122 and 49 CFR § 190.223, you are subject to a civil penalty not to exceed
$225,134 per violation per day the violation persists, up to a maximum of $2,251,334 for a related
series of violations. For violation occurring on or after January 11, 2021 and before May 3, 2021,
the maximum penalty may not exceed $222,504 per violation per day the violation persists, up to
a maximum of $2,225,034 for a related series of violations. For violation occurring on or after
July 31, 2019 and before January 11, 2021, the maximum penalty may not exceed $218,647 per
violation per day the violation persists, up to a maximum of $2,186,465 for a related series of
violations. For violation occurring on or after November 27, 2018 and before July 31, 2019, the
maximum penalty may not exceed $213,268 per violation per day, with a maximum penalty not to
exceed $2,132,679. For violation occurring on or after November 2, 2015 and before November
27, 2018, the maximum penalty may not exceed $209,002 per violation per day, with a maximum
penalty not to exceed $2,090,022.
We have reviewed the circumstances and supporting documents involved in this case and have
decided not to conduct additional enforcement action or penalty assessment proceedings at this
time. We advise you to correct the items identified in this letter. Failure to do so will result in
Equitrans Midstream Corporation being subject to additional enforcement action.
12022029WL_Warning Letter_03152022_(20-173105)_text Page 3 of 4



CPF 1-2022-029-WL
No reply to this letter is required. If you choose to reply, in your correspondence please refer to
CPF 1-2022-029-WL. Be advised that all material you submit in response to this enforcement
action is subject to being made publicly available. If you believe that any portion of your
responsive material qualifies for confidential treatment under 5 U.S.C. 552(b), along with the
complete original document you must provide a second copy of the document with the portions
you believe qualify for confidential treatment redacted and an explanation of why you believe the
redacted information qualifies for confidential treatment under 5 U.S.C. 552(b).
Sincerely,
Robert Burrough
Director, Eastern Region, Office of Pipeline Safety
Pipeline and Hazardous Materials Safety Administration
12022029WL_Warning Letter_03152022_(20-173105)_text Page 4 of 4
- **truncated:** false
- **body characters:** 8331
