Pipeline Safety Interpretation PI-81-0113

Page 1PI-81-0113 September 4, 1981 Mr. Gonzalo Ancira Ancira Engineering Services, Inc. Suite 228 Hamilton Hotel P. O. Box 410 Laredo, Texas 78040 Dear Mr. Ancira: Thank you for your letter of August 24, 1981, notifying us that Tampa. Pipeline Transport Company is installing a 6-inch welded steel pipeline to transport anhydrous ammonia from Port Sutton, Tampa, Florida to Polk County, International Minerals and Chemical Corporation, Phosphate Plant. Effective July 27, 1981, the requirements of section 195.6 of the Department's hazardous liquid pipeline regulations in 49 CFR Part 195 were repealed. Therefore, notification of intent to transport a commodity other than petroleum or petroleum products is no longer necessary. I have enclosed a copy of the Federal Register publication (Amdt. 195-22; Docket PS-70) which explains this change and others made to Part 195 Sincerely, Original Sign By Melvin A. Judah Acting Associate Director for Pipeline Safety Regulation Materials Transportation Bureau#

Page 2Ancira Engineering Services, Inc. Suite 228 Hamilton Hotel P. O. Box 410 Laredo, Texas 78040 August 24, 1981 Material Transportation Bureau Office of Pipeline Safety & Operation Acting Director Code DMT – 20 2100 2nd Street S.W. Washington, D.C. 20590 Gentlemen: This is to inform that Tampa Pipeline Transport Company is in the process of installing a 6” welded steel pipeline from Port Sutton, Tampa, Florida to Polk County, International Minerals and Chemical Corporation, Phosphate Plant. The carrier will transport anhydrous ammonia, agricultural grade, NH3 considered non-flamable gas by the Federal Regulations revised as of December 31, 1973 Part 173 of Title 49. The carrier pipe specifications are as follows: Carrier Pipe Size 6 5/8" O.D. Line Pipe Wall Thickness 10 miles 0.28" 20 miles 0.25" Grade X - 42 Tensile Strenght 42,000 P.S.I. Protective Coating X-TRU Coating 30 Mil. Allowable Working Pressure 0.28" W.T. 2412 P.S.I. 0.25" W.T. 2280 P.S.I. Actual Working Pressure 0.28" W.T. 700 P.S.I. Internal Pressure at Min. 0.28" W.T. 3550 P.S.I. yield 0.25" W.T. 3170 P.S.I. Safety factor based on 0.28" W.T. 5.07 minimum yield 0.25" W.T. 6.03 Actual working Pressure in 0.28" W.T. 19.71% percent of min. yield 0.25" W.T. 17.35% Please refer to (Part 195, Sub-part "A" General Sub-b paragraph 3)#

Page 3Ancira Engineering Services, Inc. Suite 228 Hamilton Hotel P. O. Box 410 Laredo, Texas 78040 Material Transportation Bureau Office of Pipeline Safety & Operation Acting Director We hereby notify the Secretary of our intent to operate the above described pipeline in accordance with paragraph 195.6 "Transportation of certain commodities" of the regulations for the transportation of liquids by pipeline "Part 195 title 49 of the code of Federal Regulation as revised as of October 1, 1979. Including amendments through June 1, 1980, of the United States Department of Transportation. We hope the above information is satisfactory and should there be any further data required please contact the undersigned. Yours very truly, Gonzalo Ancira.#