# NORTHERN NATURAL GAS CO — Warning Letter - **operation:** document - **citation:** CPF 420131007W - **title:** NORTHERN NATURAL GAS CO — Warning Letter - **source type:** enforcement - **agency:** Pipeline and Hazardous Materials Safety Administration - **status:** historical - **official:** true - **published on:** 2013-02-19 - **effective on:** Not available - **summary:** CLOSED warning letter citing 192.465(d). - **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-enforcement-420131007w.json - **markdown:** https://regulus.evalyn.ai/document/phmsa-enforcement-420131007w.md - **app url:** https://regulus.evalyn.ai/document/phmsa-enforcement-420131007w - **source url:** https://primis.phmsa.dot.gov/enforcement-data/case/420131007W **body:** Warning Letter involving NORTHERN NATURAL GAS CO. PHMSA's enforcement data identifies the cited regulation as 192.465(d). The case was opened on 2013-02-19 and is reported as closed as of 2013-02-19. Open the official case record for notices, responses, orders, and the latest status. Official case documents: 420131007W_Operator_Response_to_Notice_03082013.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420131007W/420131007W_Operator_Response_to_Notice_03082013.pdf 420131007W_Warning_02192013.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420131007W/420131007W_Warning_02192013.pdf 420131007W_Warning_02192013_text.pdf: https://primis.phmsa.dot.gov/enforcement-documents/420131007W/420131007W_Warning_02192013_text.pdf 420131007W_Warning_02192013_text.pdf WARNING LETTER CERTIFIED MAIL - RETURN RECEIPT REQUESTED February 19, 2013 Mr. Royce Ramsey Vice President, Operations Northern Natural Gas Company 1111 South 103rd Street Omaha, NE 68124 CPF 4-2013-1007W Dear Mr. Ramsey: On multiple occasions between September 17, 2012 and February 7, 2013, a representative of the Pipeline and Hazardous Materials Safety Administration (PHMSA), pursuant to Chapter 601 of 49 United States Code, was onsite and inspected your Northern Natural Gas Company facilities in Amarillo, Texas. As a result of the review, 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. §192.465 External Corrosion Control: Monitoring. (d) Each operator shall take prompt remedial action to correct any deficiencies indicated by the monitoring. At the time of the field and records inspection, the PHMSA inspector found a low pipe to soil cathodic protection reading at M.P 23.7 on Line “C.” Records indicated that the reading had been out of compliance for the years 2011 and 2012 monitoring cycles. Northern Natural corrosion and compliance personnel stated that they performed a short close interval survey and found the low area to be about 500 feet in length. They are in the process of ordering material to mitigate the situation and the installation is expected to be complete by June 2013. 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. No reply to this letter is required. If you choose to reply, in your correspondence please refer to CPF 4-2013-1007W. 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, R. M. Seeley Director, Southwest Region Pipeline and Hazardous Materials Safety Administration 2 - **truncated:** false - **body characters:** 3178