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A minimum of 500 milliliters of used oil will be collected from each facility and transferred to glass sample containers. Upon transfer to sample containers, the samples will be stored and preserved on ice at <4 degree C. 2.2 Equipment Decontamination In order to prevent cross-contamination during sample collection, disposable sampling equipment will be used. Used PPE and disposable sampling equipment will be be placed into Department of Transportation/United Nations (DOT/UN) approved 5-55-gallon drums for offsite disposal at a permitted facility. The drum will be labeled as waste characterization pending analysis with the accumulation start date marked. 3.0 SAMPLE HANDLING 3.1 Sample Containers and Preservation Following collection of the used oil samples, the samples will be transferred to wide-mouth, glass sample containers. All samples are preserved using ice and maintained at a temperature of <4 degree C. Sample containers will be delivered to the sampling site or office cleaned and prepared by the analytical laboratory using standard EPA-approved protocols. Sample containers will be protected from dust or other contamination between time of receipt and time of usage at the sampling site. 3.2 Sample Identification/Labeling Each sample will be assigned a unique sample identification number to allow for proper data management. These sample numbers will be included on the sample label, in the field logbook to identify notes pertaining to the sample, and on the Chain-of-Custody Records (COC). The sample number shall consist of a two- to five-digit sample location designator and a four-digit tank or container identification number Samples will be labeled immediately after collection. The following information will be included on the sample label: project number, sample location, sample identification number, date and time of collection, name of the sampler, preservatives added and requested analysis. The labels will be printed, filled out in indelible ink, and firmly affixed to the sample container. Clear packing tape will then be used to cover the completed sample label to prevent damage to the label during shipping. 3.3 Packing and Shipping Samples will be contained in glass screw top jars and will be well protected during vehicle transportation. The void space in each sample cooler should be filled with packaging material to minimize content shifting. Preferably, the sample cooler and its contents are transferred as one unit during the transfer to a laboratory courier or at the laboratory sample receiving department. The following steps will be followed for packing and shipping sample containers to the analytical laboratory: • Place each sample container in a separate plastic bag, preferably a Zip-Loc bag. Squeeze as much air as possible from the bag before sealing. Used Oil Sampling and Analysis Plan 3 July 29, 2014 BNSF Railway Multiple Locations TRC Project No. 211983