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Hilmar California. Sherwood Labs supplies the sample vials with <br /> the proper amount of Hydrochloric Acid in each bottle, so no <br /> further acid or any other chemical should be added to the water. <br /> The vials will be placed on ice in a cooler and kept on ice until <br /> delivered to the lab or turned over to their courier within 48 <br /> hours of the sampling time. <br /> Purged water will be placed in a sealed drum and left at the <br /> site. <br /> Water samples will be taken from the water at or near the surface <br /> of the water table, unless otherwise indicated. The containers <br /> will be filled so that zero headspace is present in the sealed <br /> vial before placing in the cooler. Trip blanks will accompany <br /> r all sample containers. A Chain of Custody will be filled out by <br /> the sampler. The tests run will be as follows: <br /> Test Detection <br /> Limits <br /> DHS TPH Method (gasoline) 500 ug/L <br />` EPA 602 for <br /> Benzene 0 . 5 ug/L <br /> Toluene 0 . 5 ug/L <br /> EthylBenzene 0. 5 ug/L <br /> Xylenes 0 . 5 ug/L <br /> All laboratory results, well measurements and the Chain of <br /> Custody must be sent to our office for evaluation and the <br /> preparation of the quarterly report. <br /> r <br /> r <br /> r <br />