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i <br /> Horizon's Field Me hods snd P oeedu - <br /> After the water levels within the wells stabilize,,a sample will be collected with a clean disposable <br /> bailer. Samples will be contained in aim tight vials and then packed on ice and sect to the laboratory <br /> for analysis. Groundwater samples.will:be transported to the laboratory and analyzed within' the <br /> EPA-specified holding time for requested analysis. <br /> Each sample container submitted &r analysis will.,have a label affixed to identify the job number, <br /> sample date, time of sample collection,landta sainple'number unique to that sample. Samples will,i <br /> be analyzed by a California-certified laboratory <br /> A Chain-of-Custody form.will beiused-to+record possession of the sample from time of collection to <br /> its arrival at the laboratory. When the samples will be shipped,.the person in custody.of these <br /> relinquishes the samples by signing the Chain-of Custody form.and noting the time. The Sample <br /> Control Officer at-the laboratory will verify sample integrity and confirm that-the sample was <br /> collected in the proper container, preserved correctly, and thatthere is an adequate volume for <br /> analysis: _ <br /> $A !MAP—TQZ OF CASMG-_MASUREMMNT <br /> The top of each new well riser will be measured to allow.correlation of the groundwater levels at the <br /> sits' The measured point on each well riser will'be marked to help insure future groundwater level <br /> measurements are taken from thei,,sarne,16cation,L AllL measurements will be measured relative to an <br /> arbitrary datum or benchmark to:the nearest,0.01-foot using a surveyor level and,graduated stadia <br /> rod: If using an arbitrary datum, one well iiser.will be assigned:the arbitrary datum and the other <br /> well riser will be measured higher or lower relative to the'arbitrary datum: <br /> i <br /> + F <br /> . - k <br /> L <br /> I <br /> II <br /> MORIZop 81 11MONMEll NAL INC: <br />