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Smith Environmental Technologies Corporation <br />Quality Assurance/Quality Control Plan <br />Revised February 1995 <br />evidence. Where several types of analysis will be performed for a given well, individual samples will be <br />collected in the following order. <br />1. <br />Volatile Organics <br />2. <br />Purgeable Organic Carbon <br />3. <br />Purgeable Organic Halogens <br />4. <br />Total Organic Carbon <br />5. <br />Total Organic Halogens <br />6. <br />Extractable Organics <br />7. <br />Total Metals <br />8. <br />Dissolved Metals <br />9. <br />Phenols <br />10. <br />Cyanide <br />The specific analytical methods be utilized for the common volatile/semivolatile to analyses are shown <br />on Table 2. <br />Groundwater samples will be collected with a teflon bailer with bottom emptying device. Duplicate <br />samples will be transferred to vials or containers that meet Regional Board specifications (Table 1). <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 sample container once it is sealed. After the <br />vial is capped it will be inverted to check for air bubbles. If bubbles are present 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 />Immediately following sample collection, samples will be labeled and stored in an ice chest containing <br />frozen chemical ice sealed in plastic bags. Sample labels will contain the following information: <br />✓ date and time <br />m:�.Ashe11s\QAQC-95. WP5 <br />14 <br />• <br />WkH <br />