# EAST CHEYENNE GAS STORAGE, LLC — Notice of Probable Violation

- **operation:** document
- **citation:** CPF 32024054NOPV
- **title:** EAST CHEYENNE GAS STORAGE, LLC — Notice of Probable Violation
- **source type:** enforcement
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2024-08-23
- **effective on:** Not available
- **summary:** CLOSED notice of probable violation citing 192.481(b), 192.745(a).
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-enforcement-32024054nopv.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-enforcement-32024054nopv.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-enforcement-32024054nopv
- **source url:** https://primis.phmsa.dot.gov/enforcement-data/case/32024054NOPV
**body:**

Notice of Probable Violation involving EAST CHEYENNE GAS STORAGE, LLC. PHMSA's enforcement data identifies the cited regulations as 192.481(b),  192.745(a). The case was opened on 2024-08-23 and is reported as closed as of 2025-01-08. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

32024054NOPV_Closure Letter_01082025_(23-264382).pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024054NOPV/32024054NOPV_Closure%20Letter_01082025_(23-264382).pdf

32024054NOPV_Closure Letter_01082025_(23-264382)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024054NOPV/32024054NOPV_Closure%20Letter_01082025_(23-264382)_text.pdf

32024054NOPV_Final Order_12062024_(23-264382).pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024054NOPV/32024054NOPV_Final%20Order_12062024_(23-264382).pdf

32024054NOPV_Final Order_12062024_(23-264382)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024054NOPV/32024054NOPV_Final%20Order_12062024_(23-264382)_text.pdf

32024054NOPV_Operator Response to Notice 09162024_(23-264382).pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024054NOPV/32024054NOPV_Operator%20Response%20to%20Notice%2009162024_(23-264382).pdf

32024054NOPV_PCO_08232024_(23-264382).pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024054NOPV/32024054NOPV_PCO_08232024_(23-264382).pdf

32024054NOPV_PCO_08232024_(23-264382)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/32024054NOPV/32024054NOPV_PCO_08232024_(23-264382)_text.pdf

32024054NOPV_Final Order_12062024_(23-264382)_text.pdf

December 6, 2024
VIA ELECTRONIC MAIL TO: matt@tallgrass.com
Matt Sheehy
President and Chief Executive Officer
Tallgrass Energy, LP
370 Van Gordon Street
Lakewood, Colorado 80228
Re: CPF No. 3-2024-054-NOPV
Dear Mr. Sheehy:
Enclosed please find the Final Order issued in the above-referenced case to East Cheyenne Gas
Storage, LLC, a subsidiary of Tallgrass Energy, LP. 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 are completed, as determined by the Director, Central Region, this
enforcement action will be closed. Service of the Final Order by e-mail is effective upon the
date of transmission and acknowledgement of receipt 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
Enclosures (Final Order and NOPV)
cc: Gregory Ochs, Director, Central Region, Office of Pipeline Safety, PHMSA
Ms. Danielle Stephens, Director, PHMSA Compliance, Tallgrass Energy, LP,
danielle.stephens@tallgrass.com
Ms. Crystal Heter, Chief Operating Officer, Tallgrass Energy, LP,
crystal.heter@tallgrass.com



Ms. Nicole Longwell, Associate General Counsel and Chief Operations Compliance
Officer, Tallgrass Energy, LP, nicole.longwell@tallgrass.com
Mr. Kale Stanton, Vice President, Asset Integrity, Tallgrass Energy, LP,
kale.stanton@tallgrass.com
CONFIRMATION OF 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 )
)
)
East Cheyenne Gas Storage, LLC, )
a subsidiary of Tallgrass Energy, LP, )
Respondent. )
____________________________________)
) CPF No. 3-2024-054-NOPV
FINAL ORDER
On August 23, 2024, pursuant to 49 C.F.R. § 190.207, the Director, Central Region, Office of
Pipeline Safety (OPS), issued a Notice of Probable Violation (Notice) to East Cheyenne Gas
Storage, LLC (Respondent). The Notice proposed finding that Respondent had violated the
pipeline safety regulations in 49 C.F.R. Part 192. The Notice also proposed certain measures to
correct the violations. Respondent did not contest the allegations of violation or corrective
measures.
Based upon a review of all of the evidence, pursuant to § 190.213, I find Respondent violated the
pipeline safety regulation listed below, as more fully described in the enclosed Notice, which is
incorporated by reference:
49 C.F.R. § 192.481(b) (Item 1) ─ Respondent failed to give particular attention
to pipe at soil-to-air interfaces, under thermal insulation, under disbonded
coatings, at pipe supports, in splash zones, at deck penetrations, and in spans over
water during atmospheric corrosion inspections.
This finding of violation will be considered a prior offense in any subsequent enforcement action
taken against Respondent.
Compliance Actions
Pursuant to 49 U.S.C. § 60118(b) and 49 C.F.R. § 190.217, Respondent is ordered to take the
actions proposed in the enclosed Notice to correct the violation. 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. Upon completion
of the ordered actions, Respondent may request that the Director close the case. Failure to
comply with this Order may result in the assessment of civil penalties under 49 C.F.R. § 190.223



or in referral to the Attorney General for appropriate relief in a district court of the United States.
Warning Item
With respect to Item 2, the Notice alleged a probable violation of 49 C.F.R. § 192.745(a) but did
not propose a civil penalty or compliance order for this item. Therefore, this is considered to be
a warning item. If OPS finds a violation of this provision in a subsequent inspection,
Respondent may be subject to future enforcement action.
The terms and conditions of this order are effective upon service in accordance with 49 C.F.R.
§ 190.5.
December 6, 2024
___________________________________ _________________________
Alan K. Mayberry Date Issued
Associate Administrator
for Pipeline Safety

32024054NOPV_Closure Letter_01082025_(23-264382)_text.pdf

VIA ELECTRONIC MAIL TO: matt@tallgrass.com; crystal.heter@tallgrass.com;
Danielle.stephens@tallgrass.com
January 8, 2025
Matt Sheehy
President & Chief Executive Officer
Tallgrass Energy, LP
370 Van Gordon Street
Lakewood, CO 80228
RE: CPF 3-2024-054-NOPV
Dear Mr. Sheehy:
On December 6, 2024, the Pipeline and Hazardous Materials Safety Administration (PHMSA)
issued to East Cheyenne Gas Storage, LLC (ECGS) (a subsidiary of Tallgrass Energy, LP.) a
Final Order in the above-referenced case. This Order included a Compliance Order. Based on our
review of the documentation provided, it has been determined that ECGS has 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,
Gregory A. Ochs
Director, Central Region, Office of Pipeline Safety
Pipeline and Hazardous Materials Safety Administration
cc: Crystal Heter, Chief Operating Officer, crystal.heter@tallgrass.com
Danielle Stephens, Director, PHMSA Compliance, Danielle.stephens@tallgrass.com
- **truncated:** false
- **body characters:** 7051
