# WESTERN MIDSTREAM PARTNERS, LP — Warning Letter

- **operation:** document
- **citation:** CPF 520095031W
- **title:** WESTERN MIDSTREAM PARTNERS, LP — Warning Letter
- **source type:** enforcement
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2009-08-21
- **effective on:** Not available
- **summary:** CLOSED warning letter citing 195.420(b).
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-enforcement-520095031w.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-enforcement-520095031w.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-enforcement-520095031w
- **source url:** https://primis.phmsa.dot.gov/enforcement-data/case/520095031W
**body:**

Warning Letter involving WESTERN MIDSTREAM PARTNERS, LP. PHMSA's enforcement data identifies the cited regulation as 195.420(b). The case was opened on 2009-08-21 and is reported as closed as of 2009-08-21. Open the official case record for notices, responses, orders, and the latest status.

Official case documents:

520095031W_warning letter_08212009.pdf: https://primis.phmsa.dot.gov/enforcement-documents/520095031W/520095031W_warning%20letter_08212009.pdf

520095031W_warning letter_08212009_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/520095031W/520095031W_warning%20letter_08212009_text.pdf

520095031W_warning letter_08212009_text.pdf

WARNING LETTER
CERTIFIED MAIL - RETURN RECEIPT REQUESTED
August 21, 2009
Mr. Danny Rea
Vice President of Midstream
Anadarko Petroleum Corporation
1201 Lake Robbin Drive
The Woodlands, TX 77380
CPF 5-2009-5031W
Dear Mr. Rea:
On June 15-19, 2009, a representative of the Pipeline and Hazardous Materials Safety
Administration (PHMSA), pursuant to Chapter 601 of 49 United States Code, inspected your Salt
Creek CO2 Pipe Line near Casper, Wyoming.
As a result of the inspection, it appears that you have committed a probable violation of the
Pipeline Safety Regulations, Title 49, Code of Federal Regulations. The item inspected and the
probable violation is:
1. §195.420 Valve maintenance.
(b) Each operator shall, at intervals not exceeding 7 1/2 months, but at least twice
each calendar year, inspect each mainline valve to determine that it is functioning
properly.
Per §195.420(b), the operator must inspect and operate each mainline valve at intervals not
exceeding 7-1/2 months. During the inspection, Anadarko Petroleum Corporation’s records
pertaining to the valve inspection frequency between 2008 and 2009 exceeded 7 ½ months for the



ten (10) mainline valves. Anadarko’s valve maintenance records reveal that the inspection interval
for the ten (10) mainline valves exceeded 7-1/2 month intervals by 50 to 52 days.
2 nd 2008
Inspection
Date
Mainline
(Isolation) Valves
195.420(b)
Inspection
Due Date
(7 ½ months)
1 st 2009
Inspection
Date
Days
Late
MLV #1 (Site B) 7-09-08 2-23-09 4-15-09 51
MLV #2 7-09-08 2-23-09 4-15-09 51
MLV #3 7-08-08 2-22-09 4-15-09 52
MLV #4 7-10-08 2-24-09 4-16-09 51
MLVB #5 (Site C) 7-14-08 2-28-09 4-21-09 52
MLV #6 (Site C) 7-14-08 2-28-09 4-21-09 52
MLV #7 7-14-08 2-28-09 4-21-09 52
MLV #8 (Site D) 7-16-08 3-02-09 4-21-09 50
MLV #9 (Site D) 7-16-08 3-02-09 4-21-09 50
MLV #10 7-15-08 3-01-09 4-21-09 51
Under 49 United States Code, § 60122, you are subject to a civil penalty not to exceed $100,000
for each violation for each day the violation persists up to a maximum of $1,000,000 for any
related series of violations. 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 item(s) identified in this letter.
Failure to do so will result in Anadarko Petroleum Corporation being subject to additional
enforcement action.
No reply to this letter is required. If you choose to reply, in your correspondence please refer to
CPF 5-2009-5031W. 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,
Chris Hoidal
Director, Western Region
Pipeline and Hazardous Materials Safety Administration
cc: PHP-60 Compliance Registry
PHP-500 B. Brown (#123994)
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