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SEP- 9-96 MON 2 :48 2 \ 916 631 8206 P. 02 <br /> MO.��. S <br /> i RON V`C�O ✓ <br /> 11297 RoadDGEEWNV Rancho Cordova. Ca. <br /> 95670 <br /> 1 N C 0 R P 0 R A T E D (916)A631-1646 FAX 6310437 <br /> September 9, 1996 <br /> Ms.Letitia Briggs <br /> San Joaquin County Environmental Health <br /> 304 E.Weber Avenue <br /> Stockton,CA.95201 <br /> Subject: Underground Supply and Return Piping Re-location at: <br /> Pacific Bell, 1413 Bourbon Street,Stockton,CA. <br /> Dear Letitia: <br /> In response to your questions regarding the above referenced project, we will be attempting to re-use the <br /> existing Enviroflex piping system installed in 1994. We will remove any residual fuel in the primary <br /> supply and return lines by draining the fuel back into the existing underground tank. We will then <br /> disconnect the primary piping and remove it from the secondary containment piping. The secondary <br /> containment piping will then be exposed,soil samples taken at your direction. The secondary containment <br /> piping will be visually inspected,if the secondary passes the visual inspection it will then be installed in the <br /> new piping trench. The primary lines will be installed,and the system will be air tested to manufacturer's <br /> specifications. The piping sump will be water tested. After the piping system passes these tests,the lines <br /> will be backfilled and compacted. The water will be vacuumed and disposed of under manifest by <br /> Enviropure located in Patterson,CA. The final grade materials (concrete or asphalt)will be replaced to <br /> match existing grades. The primary lines will be given a final precision line test by Afford-A-Test,and the <br /> system put on-line. <br /> If the existing Enviroflex lines are to short or do not pass a visual inspection,they will be replaced with a <br /> i new Enviroflex system of the same. I have included a copy of the UL listing card for your reference. The <br /> old piping will be triple rinsed,the rinseate collected in a drum for disposal by Enviropure,Patterson,CA.. <br /> If they lines are to short but pass the visual inspection they will be stored in our yard for re-use at another <br /> site. If the lines are damaged they will be disposed of at Erickson in Richmond,CA- <br /> If you have any questions please call me at any time. <br /> Sincerely, J <br /> �Ny <br /> !/V" <br /> en <br /> Project Manager <br /> i <br /> i <br /> i <br />