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} <br /> 1 <br /> ATC Associates Fnc, <br /> Quality Assurance/Quality Control Plan <br /> Revised 1998 �+ <br /> Groundwater samples will be collected with a teflon bailer withl'bottom emptying device. Duplicate <br /> p p� g p <br /> l <br /> samples will be transferred to vials or containers that meet Regional Board specifications (Table 1). <br /> P <br /> Groundwater from the bailer will be transferred to the sample container by allowing the fluid to flow <br /> slowly along the sides of the vessel. All containers will be filled above the top of the opening to form a <br /> positive meniscus. No headspace should be present in the sa=present <br /> e once it is sealed. After the <br /> vial is capped it will be inverted to check for air bubbles. the sample will be <br /> discarded and replaced. If it is not possible to collect a sample without headspace, the problem will be <br /> noted on the field technician's sampling log. <br /> I� <br /> Immediately following sample collection, samples will be labeled and stored in an ice chest containing <br /> t <br /> frozen chemical ice sealed in plastic bags. Sample labels will contain the following information: <br /> u date and time <br /> u project ID <br /> u sample ID <br /> u name of sampler <br /> 0 type of analysis to be performed <br /> All samples will be transported under chain-of-custody protocol to a state certified laboratory within 24 <br /> hours. A sample container filled in the laboratory with organic free water and carried unopened during <br /> the sampling trip will also be provided (Trip Blank). A "high-low" temperature recording thermometer <br /> will also accompany sample shipments to ensure proper sample temperature maintenance. I <br /> Samples will be transported either by ATC Associates personnel or by private carrier. Analytical <br /> holding times will be considered in determining sampling'I and shipping schedules. Friday <br /> shipment/Saturday laboratory receipt of samples will be coordinated in advance with the laboratory. <br /> I} <br /> ie <br /> Ii <br /> ft <br /> it k <br /> 14 {. 1 <br />