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Underground Piping <br />Apfil /, 1996 <br />Secondary Piping: <br />The secondary piping shall be continuous and have no buried or inaccessible <br />connections or joints. All secondary piping terminations shall either be above <br />grade or accessible inside subsurface chambers. <br />The Secondary Piping shall: <br />1. Meet the minimum standards of Underwriters' Laboratories of Canada, testing <br />for "Nonmetallic underground secondary containment piping, for petroleum <br />products", and be so listed. <br />2. Be flexible and capable of a minimum bend radius of 24 inches without <br />kinking, cracking or breaking. <br />3. Be of sufficient strength to withstand "H-20" burial loads in accordance with <br />AASHTO M294. <br />4. Be of sufficient size and design so as to allow the containment of up to four <br />.separate primary pipes of 1/2" and/or 3/4" size and also allow the removal <br />and/or replacement of the primary piping without excavation or compromise <br />of its integrity. <br />S. Be capable of repair without excavation when assessed by Total Containment <br />factory technicians. <br />Sumps: <br />The Sumps shall: <br />1. Be water tight resistant to 100% neat methanol, corrosion resistant, provide <br />access to piping and fittings and allow for visual examination of sump for leak <br />detection. <br />�TOTAL <br />CONTAINMENT - <br />PS P400.06 (2 of 5) <br />