Laserfiche WebLink
The specific analytical methods to be utilized for the common volatile/semivolatile analyses are <br /> shown on Table 2. <br /> Groundwater samples will be collected with a Teflon bailer with bottom emptying device.' <br /> Duplicate samples will be transferred to vials or containers that meet Regulatory Agency <br /> specifications (Table 1). Groundwater from the bailer will be transferred to the sample container <br /> by allowing the fluid to flow slowly along the sides of the vessel. All containers will be filled <br /> above the top of the opening to form a positive meniscus. No head space should be present in <br /> the sample container once it is sealed. After the vial is capped it will be inverted to check for <br /> air bubbles. If bubbles are present the sample will be discarded and replaced. If it is not <br /> possible to collect a sample without head space, the problem will be noted on the field <br /> technician's sampling log. <br /> Immediately following sample collection, samples will be labeled and stored in an ice chest <br /> containing frozen chemical ice sealed in plastic bags. Sample labels will contain the following <br /> information: date, time, project ID, sample ID, and name of sampler and type of analysis. All <br /> samples will be transported under chain of custody protocol to a state certified laboratory within <br /> 24 hours. A sample container filled in the laboratory with organic free water and carried <br /> unopened during the sampling trip will also be provided (Trip Blank). A "high-low" <br /> temperature recording thermometer will accompany sample shipments to ensure proper sample <br /> temperature maintenance. <br /> Samples will be transported either by GZA personnel or by private courier. Analytical holding <br /> times will be considered in determining sampling and shipping schedules. Friday <br /> shipment/Saturday laboratory receipt of samples will be coordinated in advance with the <br /> laboratory. <br /> 9 <br />