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SAMPLING PROTOCOL FOR ROUTINE TANK REMOVALS <br /> The e0L:owinj represents minim=sampling eriterton required for closure compl Once. Soil samples coLlected 3b1L Je <br /> representative of native soils beneath tie tank's invert(mule's bottom)at a celleccion depth not to exceed Z-3 feet. If <br /> centanaaanuon is documented during closure, an Unauthorized Release Notif anon must'x eomplemd and submitted within five 151 <br /> wor�dag days pursuant to Cailfotnia 3lealth & Safety Code. Section 25295. <br /> WATER NOT PRESENT LC THE TA_N K PFT <br /> 7ANiC —L.-%\K SIZE MINIMUM NIJMBER LOCATION OF SOIL SAMPLES <br /> - (Gallons) of SOIL SAMPLBS <br /> d <br /> y' < 1 ` l Tart' Frill OR Pum End of Tank <br /> LOW - 10.000 2 net Tank I 1 at each End cr Tank <br /> !I <br /> > 10,000 3 or Mxe Ends and Midcle OR generaily <br /> per 'anis spaced along he lenrth of the Tank <br /> PIPING A.%-D SFGC&PTLE <br /> ?IPING SOIL SATIN .ES l Saraic evert 20 Deal feet <br /> I <br /> T.�VK&PtPI�G STOCKPILE s,LVtPLES 2 Samples every 50 cubic yards <br /> WATER IS PRESENT IN TANK PIT <br /> TANK I TANK SIZE MIN-FMUM NLMBER LOCATION of SOIL I MINIMUM NUMBER I <br /> � (Gsilons) <br /> of SOIL SAMPLES SAMPLEs of WATER SAMPLES <br /> I < 10,000 2 frcm wall next w tank <br /> Single Tank 3 ends at so i/groundwater <br /> inurra a& 1 below tu+k <br /> a;rc:wall test to tank I ' <br /> > 10,000 OR ends at saiUartundwater <br /> Tank Cluster 5 a more ! interface& I below each <br /> tank <br /> SL 4B pRESENT V THE T VNI<PIT d is order MScil samples shalt be obtaffied bentatk rhe s ab within ative soils. Penetration]cough the obstructionwit:be requi:: <br /> ecilect;te samples. i Physicai removal of the obstruction wi l allow sampnag according to the above conditiotu: <br /> N TANK TANK SIZE MINL'vtrjNI NUMBER LOCATION of SOIL SAMPLES II <br /> (Gallons) of SOC SAMPL=ES 1 <br /> < 1.000 ? ler Tank Center and Ends OR S des of Tank <br /> L,000- 50.00<' S c:r Taaic I Cerate-a�Eads OR Sides of Taac <br /> L, 10,000 S OR �Iore per Taal: Ends and Middle sad generally spac_d <br /> r, <br /> along tha length of Ilia Tank <br /> I <br /> EH 1..3 046(F•vised 08/13i99) Page 7 <br />