{"operation":"document","citation":"PI-18-0012","title":"Olin — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"2019-04-29","effective_on":null,"summary":"PI-18-0012 response to Olin concerning 192.1.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-18-0012.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-18-0012.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-18-0012","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/docs/standards-rulemaking/pipeline/interpretations/71271/olin-pi-18-0012-06-13-2019-part1921.pdf","body":"<<<PAGE 1>>>\n\nU.S. Department\nofTransportation\nPipeline and Hazardous Materials\nSafety Administration\n1200 New Jersey Avenue SE\nWashington DC 20590\n'APR 2 9 2019\nMs. Stacie Campbell-Eckhoff\nEnvironmental Superintendent\nOlin\n1186 Lower River Road\nCharleston, 1N 3 7310\nDear Ms. Campbell-Eckhoff:\nIn an April 30, 2018, letter to the Pipeline and Hazardous Materials Safety Administration\n(PHMSA), you requested an interpretation of 49 CFR Part 192. Specifically, you requested\ninterpretation for the applicability of Part 192 to your pipeline.\nYou stated that Olin and Wacker own and operate separate portions of a 4-inch diameter, 9,965-\nfoot long(~ 1.9 miles) pipeline in Charleston, Tennessee used to transport chlorine gas from the\nOlin manufacturing facility to Wacker the customer. You stated that the Wacker-owned portion\nof the pipeline is a transmission line. Olin owns and maintains 5,240 feet (~I-mile) of the line\nthat is completely within Olin's property line. You stated that just before the end of the Olin\nportion of the pipeline (where the pipeline transfers to Wacker) there is a manual block valve and\ndirectly upstream of the manual block valve there is an automatic shutoff valve that can be\noperated in the field by an \"emergency stop\" button or remotely from a central control room by\nOlin. Also, you mentioned an August 2010 PHMSA interpretation you believe indicates\nPHMSA does not apply the safety regulations to lines like yours. You asked whether Olin's\nportion of the line is regulated under Part 192.\nInterpretation PI-09-0020, (Illinois Commerce Commission (Aug. 11, 2010)) responded to a\nrequest for an interpretation regarding whether \"in-plant piping\" operated by a large volume\ncustomer is subject to the pipeline safety laws and regulations. PHMSA stated that such piping\ndownstream of where pressure control changes from a transmission pipeline operator to a large\nvolume customer would not be subject to the pipeline safety regulations. The August 2010\nInterpretation does not apply to your case, however, because Olin is not operating in-plant piping\nas a large volume customer receiving gas from a transmission line. In this case, the pipeline in\nquestion transports chlorine gas (a toxic and corrosive gas) from the Olin manufacturing facility\nto the Wacker transmission line.\nThe Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations (49 CFR\nParts 190-199) in the form of interpretation letters. These letters reflect the agency's current application of the regulations to the specific facts\npresented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and are provided to\nhelp the public understand how to comply with the regulations.\n\n<<<PAGE 2>>>\n\n2\nPart 192 prescribes minimum safety requirements for pipeline facilities and the transportation of\ngas, including pipeline facilities and the transportation of gas within the limits of the outer\ncontinental shelf ( 49 CFR 192.1 ). In-plant pipelines that are involved in the transportation of gas\nare subject to the Part 192 regulations. It is the opinion of this office that the Olin owned and\noperated 5,240-foot pipeline line is involved in the transportation of gas and is subject to the\nregulations in 49 CFR Part 192.\nIfwe can be of further assistance, please contact Tewabe Asebe at 202-366-5523.\nSincerely,\n. Gae\nDirector, Office of Standards\nand Rulemaking\n('\nThe Pipeline and Hazardous Materials Safety Administration, Office of Pipeline Safety provides written clarifications of the Regulations\n(49 CFR Parts 190-199) in the fonn of interpretation letters. These letters reflect the agency's current application of the regulations to the\nspecific facts presented by the person requesting the clarification. Interpretations do not create legally-enforceable rights or obligations and\nare provided to help the public understand how·to comply with the regulations.\n\n<<<PAGE 3>>>\n\nCertified Mail - Return Receipt Requested\n7013 2250 0002 2995 4030\nPipeline and Hazardous Materials Safety Administration\nU.S. Department of Transportation\n1200 New Jersey Avenue, SE\nWashington, DC 20590\nRe: PHMSA Applicability Interpretation Request\nOlin is requesting a formal interpretive letter on the applicability of the\nTransportation of Natural and Other Gas by Pipeline Regulations at 49 CFR Part\n192 to Olin's portion of the Olin/Wacker pipeline. The Olin-owned portion of the\npipeline is not on and does not cross public property, is owned and operated\nsolely by Olin and is less than one mile in length. PHMSA's Interpretation #PI-09-\n0020 (August 11, 2010) appears to indicate that PHMSA elects not to apply the\nFederal gas pipeline safety regulations to such lines.\nOlin and Wacker own and operate a pipeline in Charleston, Tennessee that is\nused to transport chlorine gas from the manufacturer (Olin) to the customer\n(Wacker). Part of the Wacker-owned portion of the pipeline crosses public land\n(Old Lower River Road) and is registered as a transmission line. Please see the\nattached color map of the pipeline (attachment 1), with Olin's portion of the line\ndelineated in green, and Wacker's portion of the line delineated in blue. Also\nattached is a more detailed diagram of the pipeline (attachment 2).\nGeneral Description of the Pipeline\nAt Olin's Charleston Facility, gaseous chlorine is transferred to the neighboring\nWacker Plant via a 4\" diameter, insulated, electrically heat traced, Schedule 80,\nASTM A106-B carbon steel transmission pipeline. The entire pipeline is\napproximately 9965 feet long running from the discharge of either the A or B train\ncompressor on Olin's property to Wacker's HCl burner. Chlorine is not stored\nbetween the compressor and burner.\nOlin owns and maintains the 5240 feet of pipeline on contiguous Olin property,\nterminating 330 feet north of Old Lower River Road at a manual block valve.\nDirectly upstream of the manual block valve is an automatic shutoff valve that\n]l\n\n<<<PAGE 4>>>\n\nAmerican Chemistry Council Responsible Care ® program and the Tennessee\nOSHA Voluntary Protection Program. The chlorine piping system was designed,\nconstructed, and operated using Chlorine Institute Pamphlets 6 and 60, the\nindustry standard or \"recognized and generally accepted good engineering\npractice\", i.e., REGAGEP. In addition, chlorine monitors are located every 500\nfeet along the pipeline. Routine visual, external and corrosion pipeline\ninspections are conducted.\nIf you require further information or have any questions, please contact me at\n423-336-4724 or sjcampbell-eckhoff@olin.com.\nThank you for your consideration,\nStacie Shell-Sikhall\nStacie Campbell-Eckhoff\nOlin Responsible Care\nEnvironmental Superintendent\nAttachments):\nAttachment 1 - Color Map of the Pipeline\nAttachment 2 - Detailed Diagram of the Pipeline\n2\n\n<<<PAGE 5>>>\n\nREFERENCE DRAWING\n- INSTRUMENTATION SYMBOL\nCL 2 HEAT TRACE PANEL\n65701)\nNOTES\nNOTE 4\nCORONATE LOCATING WITH\nSOO FEET ALONG\nCOS ALARM ON HEAT TRACE FAILURE.\nVEN IS AND FLANGE\n057019)\nLOCATE\nNEAR XV-057012\nNOTE 5\n057-SWTCH FOR REMOTE 1/0 PANEL\n057-002.\nSWITCH FOR REMOTE 1/O PANEL\n057024\nTEMP\nDENSITY\n• 0 - 0 — О -\n1057011057017057017\nFOI\n1057017\nPIC\n12\n2\n(06701)\nFROM A&R TRAIN CHLORINE COMPRESSORS\nD-6247-050-09-0987\n4\"х3\"\nMASS\n057017\nNOTE 3\n057012E\n4\"-CH-050-099118-018-ET-2\"\nCHLORINE\nTO WACKER\nINTERLOCK NOTES:\n3-CH-057-000116-018\nSEE DWG D-6247-050-09-0987\nD-6247-050-09-1034\n3\"-CH-057-000117-018\nHYPO No 1/No 2 MIX TANK\nSEE DWG D-6247-050-09-0991\n• BLOWDOWN KNOCKO\nD-6247-050-09-1034\nBY CHRIS WEEKS\nREASED CORDESIGN\n- DATE 12-1-14\nROBINS & MORTON\npower & industrial\nADDED INTERLOCK NOTES\nREV INSIR BUBBLE ADD VALVE REV CONT. TEXT\nBB 3/6/15\nRALEIGH-DURHAM\nBIRMINGHAM\nTHIS DRAWING CONTAINS PSM\nCAUTION!\nDRAWING REINSTATED\n2/20/15|\nVDID DRAWING. SUPERSEDED BY D-9082-157-09-0001\n2/6/15\nCATERED\nAlin\nICHI ПР-ДІ КАЇЇ БАСТІ ТТУ\nPROJ. CAR REV.\nRELEASED FOR DESIGN (PIPE LINE>\n11-23-15\nAPPROVED\nPIANT ENGINEERING\nP & I DIAGRAM\nLINES (CL2 OR S02)\nCHARLESTON PLANT\n\"A\" AND \"B\" COMPRESSOR\nDESCRIPTIEN\nDRAWN DATE CHK'DI APPROVED\n12/01/14\nPROJECT NO C.A.R. NO.\nCHLORINE METERING\nNONE\nPRAVNG 9082-057-09-0001 REV","truncated":false,"body_characters":8214}