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-2- , <br /> Who can collect the samples? <br /> Samples may be collected by any individual who has been instructed in proper <br /> field sampling procedures. We strongly recommend that water samples be <br /> collected by a professional in the environmental field. <br /> Hov should samples be collected? <br /> 1. Samples should be taken from freshly exposed soil. To avoid entering a <br /> confined space, soil samples should be taken from the backhoe bucket. <br /> 2. Water samples should be taken immediately after the tank is removed from the <br /> excavation and should be free of sediment. <br /> 3. All samples should be collected directly into the appropriate sample bottles <br /> provided by the laboratory. <br /> 4. All sample bottles should be clearly labeled with the facility name, date, <br /> time, the analysis parameters requested and sample location. <br /> 5. Soil samples should be "grab" samples which are representative of the soil <br /> at one location and not "composite" samples. <br /> 6. Samples should be promptly sealed and placed on ice for transport to the <br /> specified laboratory. <br /> 7. The laboratory report should contain the name of the person responsible for <br /> collecting and transporting the samples, the name of the facility, the <br /> sample location, the date the samples were collected and the date the <br /> samples were analyzed. <br /> What should the samples be analyzed far? <br /> Samples collected for tanks containing petroleum products other than gasoline <br /> should be analyzed for total hydrocarbons as fuel oil. Samples collected for <br /> tanks containing gasoline should be analyzed for benzene, ethyl benzene, <br /> toluene, xylenes, and total hydrocarbons as gasoline. <br /> Where can I have the samples analyzed? <br /> A list of commercial laboratories is available from the MPCA. The MPCA does not <br /> endorse or certify laboratories. <br /> What do I do with the sampling results? <br /> If any contamination is identified in the samples, it must be reported to the <br /> MPCA as a release. If no contamination is found, the laboratory report must be <br /> retained for a period of three years after tank closure. However, it would be <br /> In your best interest to keep a copy of the analytical report in your permanent <br /> records. <br />