# TALLGRASS PONY EXPRESS PIPELINE, LLC — Notice of Probable Violation

- **operation:** document
- **citation:** CPF 32025008NOPV
- **title:** TALLGRASS PONY EXPRESS PIPELINE, LLC — Notice of Probable Violation
- **source type:** enforcement
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2025-06-16
- **effective on:** Not available
- **summary:** CLOSED notice of probable violation citing 195.307(c), 195.402(a), 195.402(d)(1)(iv), 195.452(d)(1), 195.583(b).
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- **markdown:** https://regulus.evalyn.ai/document/phmsa-enforcement-32025008nopv.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-enforcement-32025008nopv
- **source url:** https://primis.phmsa.dot.gov/enforcement-data/case/32025008NOPV
**body:**

Notice of Probable Violation involving TALLGRASS PONY EXPRESS PIPELINE, LLC. PHMSA's enforcement data identifies the cited regulations as 195.307(c),  195.402(a),  195.402(d)(1)(iv),  195.452(d)(1),  195.583(b). The case was opened on 2025-06-16 and is reported as closed as of 2025-11-26. Proposed civil penalty: $39,100. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

32025008NOPV_Operator Response to Notice and Request for Hearing and Request an Informal Settlement Meeting and Request Case File_07162025_(23-264835).pdf: https://primis.phmsa.dot.gov/enforcement-documents/32025008NOPV/32025008NOPV_Operator%20Response%20to%20Notice%20and%20Request%20for%20Hearing%20and%20Request%20an%20Informal%20Settlement%20Meeting%20and%20Request%20Case%20File_07162025_(23-264835).pdf

32025008NOPV_PCP PCO_06162025_(23-264835).pdf: https://primis.phmsa.dot.gov/enforcement-documents/32025008NOPV/32025008NOPV_PCP%20PCO_06162025_(23-264835).pdf

32025008NOPV_PCP PCO_06162025_(23-264835)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/32025008NOPV/32025008NOPV_PCP%20PCO_06162025_(23-264835)_text.pdf

32025008NOPV_Region Withdrawal of Notice Letter_11262025_(23-264835).pdf: https://primis.phmsa.dot.gov/enforcement-documents/32025008NOPV/32025008NOPV_Region%20Withdrawal%20of%20Notice%20Letter_11262025_(23-264835).pdf

32025008NOPV_Region Withdrawal of Notice Letter_11262025_(23-264835)_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/32025008NOPV/32025008NOPV_Region%20Withdrawal%20of%20Notice%20Letter_11262025_(23-264835)_text.pdf

32025008NOPV_Region Withdrawal of Notice Letter_11262025_(23-264835)_text.pdf

U.S. Department
of Transportation
Pipeline and Hazardous
Materials Safety Administration
901 Locust Street, Suite 480
Kansas City, MO 64106
WITHDRAWAL OF NOTICE LETTER
VIA ELECTRONIC MAIL TO: CEO@tallgrass.com; crystal.heter@tallgrassenergylp.com;
danielle.stephens@tallgrass.com
November 26, 2025
Matt Sheehy
President & CEO
Tallgrass Energy Partners, LP
370 Van Gordon Street
Lakewood, CO 80228
CPF 3-2025-008-NOPV
Dear Mr. Sheehy:
On June 16, 2025, PHMSA issued a Notice of Probable Violation letter for the case number
referenced above. This Notice cited Tallgrass Energy Partners, LP, for violations of Part 195.
Two of the Items (Items 3 and 4) were brought as warnings. Tallgrass responded to the Notice
on July 16, 2025. Following review of the case, PHMSA hereby withdraws the Notice.
This letter is to inform you of the withdrawal and that the case is now closed.
Sincerely,
David Barrett
Acting Director, Central Region, Office of Pipeline Safety
Pipeline and Hazardous Materials Safety Administration
cc: Ryan McClure, Attorney Advisor, PHMSA, ryan.mcclure@dot.gov
Crystal Heter, Chief Operating Officer, crystal.heter@tallgrassenergylp.com
Danielle Stephens, Director, PHMSA Compliance, danielle.stephens@tallgrass.com
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