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Proposal No. P1-410-0587 August 27,2010 Page 3 3.0 PURPOSE The purpose of the proposed assessment is to evaluate the subsurface soil conditions,and assess the presence and concentration of volatile organic compounds (VOCs)in soil at the subject property. SALEM proposes to do this assessment by conducting limited soil vapor sampling and analysis as recommended in the Phase I report prepared by SALEM. The scope of our investigation includes a program of field sampling, chemical analysis and preparation of a final report. 4.0 SOIL VAPOR SURVEY The objectives of the field investigation are as follows: 1. To collect and analyze soil-gas samples to quantify VOC levels in the vadose zone under the proposed Fresh&Easy Neighborhood Market building pad. 4.1 Proposed Investigation Activities A proposed scope of work for the investigation activities is presented below. • Task 1 —Site Subsurface Utility Plan Review: Review background information as presented in SALEM's Phase I ESA report, and attempt to obtain as-built plans for underground utilities for the subject buildings. • Task 2—Evaluation of Groundwater Data: SALEM will perform an evaluation of historical groundwater data to determine groundwater depths at the time of suspected release(s) of hazardous materials. This data will be used to guide potential sampling depths. • Task 3 — Access Permission: Written access permission will be obtained by the client from property owner(s)prior to the start of field work. • Task 4 — Drilling Permit: San Joaquin County Environmental Health Department (SJCEHD) requires that a permit be issued for subsurface assessment activities, including soil vapor surveys. A soil boring permit will be obtained from,and fees paid to,the SJCEHD prior to site work. • Task 5 — Pre-sampling Inspection and Surveying Prior to the start of sampling activities, a field reconnaissance will be performed, in which SALEM personnel will inspect areas proposed for sampling. During the pre-sampling inspection, SALEM will mark the approximate soil vapor sampling locations (to be determined in the field). Each sampling location will be marked with paint, or other appropriate marker,to identify the proposed sampling locations. • Task 6 — Geophysical Borehole Clearance: If accurate as-built plans cannot be located for underground utilities within the building, a contractor will conduct underground utility clearance of the proposed soil vapor sample locations using various geophysical methods. Final sampling locations may need to be modified in the field based on utility locations or other conditions encountered in the field. Task 7—Soil-Gas Sampling: Soil-gas samples will be collected from a total of five (5) temporary sampling points from both inside and outside of the existing bu�One round of soil-gas samples will be collected and analyzed for VOCs using EPA Method 8260B. Samples will be analyzed by an Environmental Laboratory Approval Program (ELAP) certified laboratory. At each sampling point, the