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05 March 2015 0 • <br /> AGE Project No. 14-3214 <br /> Page 2 of 4 <br /> SCOPE OF WORK <br /> AGE proposes to advance a total of two (2) soil borings along the southern property <br /> boundary at the subject property. Borings will be advanced to depths of ten feet below <br /> surface grade (bsg) for collection of soil-vapor samples at five and ten feet bsg. <br /> Proposed soil boring locations are depicted in Figure 2. <br /> Borings will be advanced using a van-mounted Geoprobe 5400 direct-push drill rig. <br /> Soil-vapor samples will be submitted to a California Department of Public Health <br /> (CDPH)-Certified laboratory and will be analyzed for: <br /> • Total petroleum hydrocarbons as gasoline (TPH-g) in accordance with EPA- <br /> method 8015-modified; and <br /> • Volatile organic compounds (VOCs) in accordance with EPA-method 8260B. <br /> Upon completion of the field work and receipt of laboratory analysis, a brief report will <br /> be prepared. The report will be reviewed and signed by a California Professional <br /> Geologist. <br /> PERMITTING AND PRE-FIELD WORK ACTIVITIES <br /> Applicable drilling permits will be obtained from the EHD and a site-specific Health and <br /> Safety Plan will be prepared. Prior to mobilization, each soil boring location will be <br /> clearly marked and a utility clearance obtained through Underground Service Alert. The <br /> EHD will be contacted a minimum of five days prior to conducting investigation activities <br /> to arrange for inspection. <br /> FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative working under the <br /> supervision of a California Professional Geologist. Procedures for sample collection and <br /> analysis, equipment decontamination and sample handling are presented below. <br /> SOIL VAPOR SAMPLING <br /> Soil-vapor samples will be collected at depths of approximately five feet and ten feet <br /> bsg in the proposed soil borings. Soil-vapor samples collected at five feet bsg will be <br /> collected using a Geoprobe soil-vapor assembly. An expendable vapor point will be <br /> placed into a point holder at the bottom of an assembly of 1.25-inch diameter hollow <br /> Advanced GeoEnvironmcntal,Inc. <br />