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North County Recycling Center and Sanitary Landfill Monitoring Implementation Plan Page 17 completeness (see Appendix G for a copy of the current chain of custody). Information for each sample including the sample number, date of sampling, time of sampling, the sample matrix, and the required analyses, is entered on the form. The form should be filled out with a waterproof pen after the samples are labeled and ready for shipment. To keep it dry, the chain of custody record should be placed in a sealed plastic bag and sent to the laboratory inside the sample cooler. Sampling personnel are responsible for retaining a copy of the original chain of custody. 4.2.5 Analytical Information The sampling personnel or an authorized contractor must properly collect, pack and document the sample collection utilizing the methods and procedures described in Section 4.2.1 through Section 4.2.4. Once the samples have been collected and prepared for shipment to the laboratory, the sampling personnel or authorized contractor will contact the laboratory for sample pickup by a courier or have delivered the samples to: Various analyses have different hold times (the maximum time allowed between the collection and analysis of a sample). The pH analysis needs to be field tested within 15 minutes of a sample being collected. Samples must be transported to the laboratory as soon as possible but no more than 8 hours after sample collection to avoid exceeding the holding times. 4.3 Analytical Quality Assurance / Quality Control To ensure that the analytical data is reliable and defendable, the laboratory is instructed to include the following information with the final analytical reports: • Copies of all laboratory QA/QC data, including matrix spikes, duplicate analyses, blanks, blank spikes, etc. (Level 2 QA/QC) • Date and time of analyses • Name of chemist or technician who performed analyses • Analytical and extraction methods • A perjury statement executed by the person responsible for the laboratory All of the above information should be reviewed by qualified personnel to ensure that proper analytical methods and procedures were followed. The information should be reviewed specifically to determine if the samples were analyzed using the proper analytical methods and within holding times, and if the QA/QC data are within allowable limits set by the laboratory. If there are any discrepancies in the laboratory data, the laboratory should be contacted to discuss the discrepancies. An explanation for the discrepancies should be included in the annual report. FGL Environmental 2500 Stagecoach Road Stockton, CA 95215 Telephone: (209) 942-0182 Fax: (209) 942-0423 ELAP No. 1563