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09 March 2015 • • AGE Project No. 15-3325 Page 2 of 4 SCOPE OF WORK AGE proposes to advance a total of four (4) soil borings along the northwestern and southwestern corners of the property, and within the community center building. Borings will be advanced to depths of ten feet below surface grade (bsg) for collection of soil- vapor samples at five and ten feet bsg. Proposed soil boring locations are depicted in Figure 2. Borings will be advanced using a mechanical hand-held hammer (rotohammer). Soil-vapor samples will be submitted to a California Department of Public Health (CDPH)-Certified laboratory and samples will be selectively analyzed for: • Total petroleum hydrocarbons (TPH) in accordance with EPA-method 8015- modified; and • Volatile organic compounds (VOCs) in accordance with EPA-method 82608. Upon completion of the field work and receipt of laboratory analysis, a brief report will be prepared. The report will be reviewed and signed by a California Professional Geologist. PERMITTING AND PRE-FIELD WORK ACTIVITIES Applicable drilling permits will be obtained from the EHD and a site-specific Health and Safety Plan will be prepared. Prior to mobilization, each soil boring location will be clearly marked and a utility clearance obtained through Underground Service Alert. The EHD will be contacted a minimum of three days prior to conducting investigation activities to arrange for inspection. FIELD PROCEDURES All field procedures will be overseen by an AGE representative working under the supervision of a California Professional Geologist. Procedures for sample collection and analysis, equipment decontamination and sample handling are presented below. SOIL-VAPOR SAMPLING For collection of soil-vapor samples, a small diameter steel probe sampler with retractable screened vapor point will be driven into the subsurface with a mechanical hand-held hammer (rotohammer). The sampling point will be advanced to depths of 5 Advanced GeoEnvironmental,Inc.