ARCHIVED REPORTS_WORK PLAN TO ESTABLISH BACKGROUND SOIL CONCENTRATIONS

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• GENESIS ENGINEERING&REDEVELOPMENT Table A-3 Soil Sample Handling Constituent Sample Sample Preservative Holding Shipping Container Quantity Time Method TPH-d Sample Sleeve 200 g Ice,cool to 4°C 14 Days Hand Deliver Oil&Grease Sample Sleeve 200 g I Ice,cool to 4°C 14 Days Hand Deliver Metals,Ca,Mg,K, Sample Sleeve 5 g Ice,cool to 4°C 6 Months Hand Deliver Na Alkalinity Sample Sleeve 100 g Ice,cool to 4°C 28 Days I Hand Deliver Chloride, Sulfate I Sample Sleeve 50 g Ice,cool to 4°C I 28 Days I Hand Deliver Sulfide Sample Sleeve 50 g Ice,cool to 4°C 14 Days Hand Deliver 3.3 Sample Control This section describes sample control procedures, including Chain-of-Custody documents and custody seal. 3.3.1 Chain-of-Custody Record • All samples submitted to the analytical laboratory will be accompanied by a Chain-of- Custody document to record points of sample handing. Chain-of-Custody forms will be prepared for groups of samples collected at a given location on a given day. Each form will be prepared in triplicate, and one of the three copies will accompany the samples to the laboratory. One copy will be kept in the QA/QC file and another copy will be retained in the project file. The Chain-of-Custody form makes provision for documenting sample integrity and the identity of any personnel involved in sample transfer. A copy of the chain-of- custody form is included in Attachment A-1. Information on the Chain-of-Custody consists of the following: • Project name and number • Chain-of-Custody serial number • Project location • Sample numbers • Sampler/recorder's signature • Date and time of collection of each sample • Sample matrix type • Analyses requested • Name of person receiving the sample • Date of receipt of sample • William DePaoli Property 8 of I I Sampling and Analysis Plan February 2012