Split Sampling. 4. Simultaneous and in coordination with ICG’s1 routine sample collection and testing for DMR reporting, SMG or its agent shall accompany ICG in the field and observe ICG’s collection of twenty (20) samples per calendar quarter to be split with and tested each by two (2) laboratories chosen by SMG and, in the normal course of testing for DMR reporting, by ICG’s contracted laboratories. The laboratories to be chosen by SMG shall be NELAC or A2LA certified. SMG shall send samples with known values (“spiked samples”) to the chosen laboratories prior to the commencement of Split Sampling and report the results of the spiked samples in its first quarterly report. The agent(s) and laboratories chosen by SMG shall not have any current contractual relationship with ICG and shall not have been engaged in a contractual relationship with ICG for a period of at least one (1) year prior to the entry of the Consent Judgment. SMG shall observe and document whether proper procedures2 are used for sample collection. For the purpose of Split Samples, pH shall be tested in the field, and Total Suspended Solids, Manganese, Iron, Settleable Solids (if applicable), and Acidity/Alkalinity shall be tested by the laboratories. Conductivity shall be tested either in the field or in the laboratory, but SMG 1 For the purposes of this Paragraph, all references to ICG shall include employees and agents of any entity contracted by ICG to perform sample collection, testing or analysis used in the completion of DMRs. 2 SMG will observe sample procedures and document whether they are suitable for obtaining representative samples for monitoring purposes. These observations will be limited to confirming that ICG sample protocols will not cause or contribute to under reporting monitored parameter concentrations. shall ensure that its chosen laboratories use the same analytical method3 per sample as used by ICG.
Split Sampling is the collection of a single specimen of urine than is then divided into a primary specimen and a split specimen. If an employee's test results are positive, the employee has an opportunity to have the second sample sent to a different (pre- determined) certified laboratory for the testing of the identified drug(s).
Split Sampling. Split samples are collected to determine the comparability of results from two or more laboratories performing the same analys is, comparison of field and offsite laboratory results, or to verify the capability of one laboratory to perform an analysis by using a laboratory with known competence in the specific test method. A single party using the same sampling equipment, same xxx pling procedures , and sample bottles obtained from the same source shall perform sample collection for both split and original samples. Split samples should be collected at a minimum of 10 percent of the samples , with the split samples being analyzed by one or more laboratories. The facility -specific work plan should detail the strategy for compariso n, evaluation, and use of split -sample results. When the results of two or more replicate samples do not agree within project specifications, the results should be used wit h caution. Table 3-7 presents a comparison strategy that may be used when comparing split -sample results. When significant differe nces are observed between split -sample pairs, data should be reviewed and corrective action should be taken, as appropriate. When the causes of significant differences between the results cannot be resolved, the samples ’ re-analysis or resampling may be required. Each variance and corrected measure that occurred throughout the project shall be documented and reported. Soil samples to be analyzed for contaminants other than VOCs shall be homogenized and divided into the two sets of sample containers. Samples to be tested for VOCs shall always be collected as discret e samples following procedures described in the facilit y-specific work plan. At the discretion of RWQCB, oversight staff may request facilities to provide split samples. These split -sample data will be used to monitor sampling and analysis procedures throughout the SGV/ SFV Basins.
