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! <br /> ! r <br /> ' CAMBRIA <br /> STANDARD PIPING AND DISPENSER REMOVAL SAMPLING PROCEDURES <br /> Cambria Environmental Technology,Inc (Cambria)has developed standard operating procedures for <br /> collecting soil samples during petroleum dispenser and piping removal These procedures ensure that <br /> the samples are collected, handled, and documented in compliance with California Administration <br /> Code Title 23 Waters, Chapter 3 Water Resources Control Board, Subchapter 16 Underground <br /> Storage Tank Regulations (Title 23) Cambria's sampling procedures are based on guidelines <br /> contained in the California State Regional Water Quality Control Board Tn-Regional Staff <br /> Recommendations for Preliminary Evaluation and Investigation of Underground Tank Sites dated <br /> August 10, 1990 <br /> Piping and Dispenser Removal Sampling <br /> The objective of sample collection during routine dispenser and piping removals is to determine <br /> whether hydrocarbons or other stored chemicals have leaked to the subsurface We collect one soil <br /> sample from the native soil beneath each dispenser unit, at each piping elbow, and at every 20 ft of <br /> product piping, as applicable <br /> • The soil samples are collected in steam cleaned brass or steel tubes from either a driven split-spoon <br /> type sampler or the bucket of a backhoe When a backhoe is used,approximately three inches of soil <br /> are scraped from the surface and the tube is driven into the exposed soil <br /> r I , <br /> Upon removal from the split-spoon sampler or the backhoe, the samples are trimmed flush,capped , <br /> with Teflon sheets and plastic end caps, labeled, logged and refrigerated for delivery under chain of <br /> custody to a State certified analytic laboratory <br /> r I i rr <br /> r <br /> r i r <br /> I , <br /> i I y <br /> F 1TEMPLAMSONTIPING doc <br /> S ' <br /> r <br /> r [ I <br /> ' r ! <br /> j i I r I rr r r <br /> i I , <br /> r <br /> I I I f <br /> r I <br /> .I dl r,fl <br />