{"operation":"document","citation":"PI-71-073","title":"Citizens Gas & Coke Utility — Pipeline Safety Interpretation","source_type":"guidance","agency":"Pipeline and Hazardous Materials Safety Administration","status":"guidance","official":true,"published_on":"1971-08-09","effective_on":null,"summary":"PI-71-073 response to Citizens Gas & Coke Utility concerning 192.457.","machine_formats":{"json":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-073.json","markdown":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-073.md"},"app_url":"https://regulus.evalyn.ai/document/phmsa-interpretation-pi-71-073","source_url":"https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1971/PI71073.pdf","body":"<<<PAGE 1>>>\n\nMr. C. E. Kleis\nCitizens Gas & Coke Utility\n2020 N. Meridian Street\nIndianapolis, Indiana 46202\nDear Mr. Kleis:\nIn reply to your letter of July 27, 1969, active corrosion is defined in Section 192.457(c) as\ncorrosion which, unless controlled, could result in a condition that is detrimental to public safety.\nAs covered by Section 192.457(b), the operator shall determine the areas of active corrosion by\nelectrical survey, or where electrical survey is impracticable, by the study of corrosion and leak\nhistory records, by leak detection survey, or by other means.\nIn the discretion of the individual gas operator, any type of electrical survey he may wish to use\nthat will reveal active areas of corrosion is satisfactory. It is not the policy of the Office of\nPipeline Safety to recommend any one electrical method over another.\nI trust this response will be helpful.\nSincerely,\n/signed/\nJoseph C. Caldwell\nActing Director\nOffice of Pipeline Safety\nDB\nC:\\WP51\\INTERPRT\\192\\457\\71-08-09\n1","truncated":false,"body_characters":1004}