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.. LU ,,., WJ_ IJ.:1U AL'T, r.l.ULK C1ix hu eV P. 09/09 i <br /> a. <br /> ;ndividual who performed the sampling,the saznple nurnbem, the date and time the sarraples were 1 <br /> c:aliected, the number of containers each sample occupies, and the analyses for- whickr the <br /> Samples are being Submitted. The eh.ain-of custody form is signed by eacb person Who handles <br /> thf; samples, ins~uding all Kleinfelder employees and the receiving employee of the analytical <br /> T when the,saMples are delivered- An ex mple of the chain-of custody form is attached. <br /> 2.3 Equipment Decontarduation <br /> To reduce rhe pote'AW for cross-contamiaation between wells, all developing and sampling <br /> equipment is washed in a trisodiilYl'" phosphate solution and rinsed in distilled water �>: steam <br /> cleaned prior to <br /> as in the next monitoring well. <br /> A-2.4 Well Su i-Vey <br /> The locations ofl soil boMRS and monitoring wells and the elevation of the top of the PVC <br /> casings is usvAly saiveyod and tied into permanent markers, if readily available. Survey <br /> accuracy is C. foot for the 1311 and ,1Y"+ coordinates and .01 foot for the "z" coordinate. Tlae <br /> depth to static grau�nd�v~atex is measured &omn a set location at the �p of the PVC casxug. The <br /> depth of water is thQn sublcacwd from the elevation of the tap of the well casing to.provide a <br /> groundwater ele ttiola.for each monitoring well lnc4on. <br /> 20-YP4094/CP9500,16(14m) Page 8-2 March 21, 1995 <br /> Copyrigbi 1995 Kleinfelder, laic. <br /> I <br />