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KL E/NF EL DER Bright People.Right Solutions. The sample liners will be removed, and the selected sampling interval will be sealed with Teflon sheets and plastic end caps. Soil samples will be collected continuously during the advancement of the pushprobes at depths ranging from near surface to the proposed maximum depth of approximately 10 feet bgs. During the advancement of the borings, soil samples will be collected for lithologic classification based on the Unified Soil Classification System (USCS). Three soil samples are proposed to be collected at each probe location at varying intervals based on field observations. A relatively shallow soil sample will be collected from each of the probes advanced within the former containment area (<5 feet bgs) and at approximately 5-foot intervals (5 and 10 feet bgs) to the proposed maximum depth. Sampling depths may vary depending upon field observations indicating evidence of phosphoric acid impacted soils. However, it is estimated three soil samples from each boring will be sufficient for the purposes of the assessment. After collection, the soil samples will be labeled, logged on a chain-of-custody form, and immediately stored in an iced cooler. The samples will be transported under chain-of- custody control to Kleinfelder's office and then transported by courier in a chilled container to a State Certified Laboratory to perform the requested analyses. Kleinfelder is proposing to submit a total of twenty-four soil samples during the push probe investigation for the following analyses: • pH by EPA Method 9040/9045 • Ortho Phosphate by EPA Methods • Total Phosphorus by EPA/Standard Methods • Total Aluminum and Copper by EPA Methods The samples will be analyzed on a standard 10 to 15 business day turn around time. Task 3 — Reporting Upon completion of the field activities and receipt of the analytical results, a draft report of findings will be prepared for client and agency review. The report will include: • A description of the field activities, observations, and protocols; • Tabulated results of soil samples with copies of certified analytical results; • A graphical representation of sample locations; • Description and documentation of QA/QC procedures employed for field and laboratory work; and 95642.ENV/ST09P060 Page 3 of 6 April 2, 2009 Copyright 2009 Kleinfelder