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Page NOA Drywell Closure and Investigation Work Plan Pa 9 March 18, 2014 One (1) pre-labeled, one-liter amber glass bottle with a Teflon septum will be filled for semi- volatile organics testing. Collection methods specified for volatile organics should be followed. The sample will be recorded, labeled and stored at a temperature of approximately 4°C in an ice chest for transportation to the analytical laboratory. Two (2) pre-labeled, one-liter, polyethylene, certified metal-free bottles will be filled for metals testing. The samples will be recorded, labeled and stored at a temperature of approximately 4°C in an ice chest for transportation to the analytical laboratory. One (1) pre-chilled, pre-labeled 40-ml VOA vials with Teflon septa will be filled for Total Petroleum Hydrocarbons (TPH) as Gasoline testing. Collection methods specified for volatile organics should be followed. The sample will be recorded, labeled and stored at a temperature of approximately 4°C in an ice chest for transportation to the analytical laboratory. I One (1) pre-labeled, one-liter glass bottle with a Teflon septum will be filled using a funnel for TPH as Diesel testing. The sample will be recorded, labeled and stored at a temperature of approximately 4°C in an ice chest for transportation to the analytical laboratory. 1 One (1) one-liter glass bottle with a Teflon septum will be filled for Total Recoverable Petroleum Hydrocarbons (TRPH) testing. Collection methods specified for volatile organics should be followed. The sample will be recorded, labeled and stored at a temperature of approximately 4°C in an ice chest for transportation to the analytical laboratory. 3.3.2 Soil One (1) sediment/sludge sample will be collected from the floor drain in the Concrete Cure Room, if available, at one and one-half (1.5) feet bgs. Sludge will be collected using a beaker attached to a pond sampler. A stainless steel lab scoop will be used to transfer the sludge from the beaker to the required container. The sediment sample will be placed in an 8-oz. wide- mouthed glass jar that will be completely filled with no headspace present. The jar will be labeled appropriately and then placed in a cooled ice chest for transportation to the analytical laboratory. ' For the soil sampling of three (3) new boreholes, a truck-mounted drill rig equipped with a six- inch hollow-stem auger will be used to drill the soil borings and collect the soil samples under the supervision and direction of a California Professional Geologist or Engineer. Drilling fluids 1 will not be used. For each boring, two (2) soil samples will be collected at forty (40) feet bgs, one (1) soil sample will be collected at forty-five (45) feet bgs, one (1) soil sample will be collected at fifty (50) feet bgs, one (1) soil sample will be collected at sixty (60) feet bgs, and ' one (1) soil sample will be collected directly above the water table at approximately (70) feet bgs. A 24-inch long core barrel fitted with four (4) six-inch long clean stainless steel sleeves will be forced into the undisturbed soil at the bottom of the borehole (40 feet bgs). The core barrel will be retrieved and sampling sleeves will be removed and placed on clean plastic. The borehole will be logged using cuttings or the coring by a Geologist in accordance with the Unified Soil Classification System. The sampling sleeve ends will then be covered with Teflon sheets and 902 Industrial Way•Lodi,CA 95240•209.367.3701 •Fax 209.369.4228 C20I4 Neil O.Anderson&Associates,Inc