Laserfiche WebLink
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. Theseprocedures ensure that the <br /> samples are collected,handled,and documented in compliance with California Administration Code Title <br /> 23: Waters; Chapter 3: Water Resources Control Board; Subchapter 16: Underground Storage Tank <br /> Regulations (Title 23). Cambria's sampling procedures are based on guidelines contained in the <br /> California State Regional Water Quality Control Board Tri-Regional Staff Recommendations for <br /> Preliminary Evaluation and Investigation of Underground Tank Sites dated August 10, 1990. <br /> Piping and Dispenser Removal Sampling <br /> The objective of sample collection during routine dispenser and piping removals is to determine whether <br /> hydrocarbons or other stored chemicals have leaked to the subsurface. We collect one soil sample from <br /> the native soil beneath each dispenser unit,at each piping elbow,and at every 20 It of product piping,as <br /> applicable. <br /> The soil samples are collected in steam cleaned brass or steel tubes from either a driven split-spoon type <br /> sampler or the bucket of a backhoe. When a backhoe is used, approximately three inches of soil are <br /> 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 with <br /> Teflon sheets and plastic end caps,labeled,logged and refrigerated for delivery under chain of custody to <br /> a State certified analytic laboratory. <br /> P:\TEMPLATEMPAPIPING.doc <br />