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I <br /> measured externally by a thermocouple probe (held tightly between two samples) and <br /> recorded. The laboratory QC numbers will be placed on the labels, in the accession log, <br /> l and tin the chain-of-custody form If samples are acldcfied, their pH will be measured by <br /> narrow range pH paper at the time of opening for analysis All comments concerning <br /> procedures requiring handling of the samples will be dated and initialed on the form by <br /> the laboratory person performing the procedure A copy of the completed <br /> chain-of-custody torn with the comments on sample integrity will be returned to the <br /> sampler. <br /> 1 <br /> 1 <br /> 1� <br /> 1 <br /> CONCORD SOP 12/941 Pepe 2 of 2 <br /> GROUNDWATER <br /> �y, TECHNOLOGY, INC <br />