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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 Tri-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 /> 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 /> FATEMPLATEWPAPIPING.doc <br />