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Garrett Backus [EH] <br /> From: Garrett Backus [EH] <br /> Sent: Friday, March 15, 2013 3:00 PM <br /> To: Stephen Boyd (stephen.boyd@7-1l.com) <br /> Cc: Stacy Rivera [EH]; Kasey Foley[EH]; Raymond von Flue [EH];Willy Ng [EH] <br /> (wng@sjcehd.com) <br /> Subject: TO secondary containment test procedure <br /> Attachments: TCI Testing Procedure.pdf;Total Containment jacketed tanks info.pdf;TCI Jacketed Tank <br /> Testing .pdf <br /> Stephen, <br /> As a follow up to today's telephone conversation: <br /> Seethe attached TO UST secondary containment testing procedure per the tank manufacturer. Minimum test <br /> parameters are: 15 inches of mercury vacuum for 12 hours(up to 10000 gallon capacity tank). <br /> For each of the tank systems listed below,Tanknology ran an one hour test at 10 inches mercury vacuum with a 5 <br /> minute wait time after applying the vacuum and starting the test. <br /> 4627 Da Vinci Dr,Stockton (tested 10-1-12) <br /> 2725 Country Club Blvd, Stockton (tested 11-19-12) <br /> 4501 N Pershing Ave, Stockton (tested 9-11-12) <br /> My agency is concerned that the Tanknology tests were not done per the tank manufacturer parameters and may not be <br /> rigorous enough to show tank secondary containment tightness. <br /> Garrett Backus <br /> Senior Registered Environmental Health Specialist <br /> San Joaquin County Environmental Health Department <br /> 1868 E Hazelton Ave, Stockton,CA 95205 <br /> Phone: (209)468-2986 <br /> Fax: (209)468-3433 <br /> Email: abackus@sicehd.com <br /> t <br />