Sample Documentation

It is critical to submit the following information with the sample to the laboratory to ensure the proper sample handling by the laboratory. The information includes:

• Unique Sample or Log Number - All samples should be assigned a unique identification number. If there is a serial number on the transportation case, the sampling personnel should add this number to the field records

• Date and Time of Sample Collection - Date and time of sample collection (including notation of a.m. or p.m.) must be recorded. In the case of composite samples, the sequence of times and aliquot size should be noted
  

• Source of Sample, including Utility Name and Address - Use the outfall identification number from the site map with a narrative description; a diagram referring to the particular site where the sample was taken should be included
  

• Name of Sampling Personnel - The names and initials of the persons taking the sample must be indicated. For a composite sample, the names of the persons installing the sampler and names of the persons retrieving the sample should be included.

• Sample Type - Each sample should indicate whether it is a grab sample or composite sample. If the sample is a composite, the volume and frequency of individual aliquots should be noted

• Preservation Used - Any preservatives (and the amount) added to the sample should be recorded. The method of preservation (e.g., refrigeration at 4°C) should be indicated

• Analysis Used - All parameters for which the sample must be analyzed at the laboratory should be specified

Click here for an example of field sheet of sample documentation.

Copyright @ January,2005 Prepared by Transportation Environmental Resource Center (TERC)