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A S S O C I A T E S I N C <br /> 10.1 Field Monitoring <br /> ! During construction activities, on-site personnel will conduct field monitoring of excavated soil <br /> ' and encountered groundwater. Air monitoring shall be conducted to identify safety and health <br /> hazards in order to determine if personal protection equipment is required. Excavated soil will be <br /> monitored with a PID for the presence of petroleum hydrocarbons. Soil will also be monitored <br /> ' using visual and olfactory senses to determine if it is impacted. Any personnel entering the <br /> excavation shall treat it as a confined space and take the appropriate precautionary measures. <br /> 10.2 Soil and Groundwater Remediation <br /> { If impacted soil is encountered during construction activities, an excavator or backhoe will be <br /> j used to remove impacted soil. Excavated soil will be visually inspected and monitored with a PID <br /> for the presence of petroleum hydrocarbons. The excavated soil will be stockpiled on site <br /> ' pending characterization. Confirmation soil samples will be collected from the excavation <br /> sidewalls and/or bottom, as necessary. <br /> Impacted groundwater will be extracted from the pit using a trash pump. The water will be stored <br /> 1 on site in a temporary holding tank. When the tank is full or when all the impacted groundwater <br /> has been extracted, the groundwater will be manifested and transported off site as nonhazardous <br /> materials for disposal at an appropriate recycling facility. Confirmation groundwater samples will <br /> be collected from the open pit as necessary. If concentrations cannot be reduced to levels which <br /> protect human health, safety, and the environment, then the need for further remediation will be <br /> evaluated. <br /> 10.3 Sample Analysis <br /> All samples will be immediately placed on ice and delivered under chain-of-custody <br /> documentation to a State-certified laboratory for analysis. Samples will be analyzed for TPHd <br /> and TPHg using EPA Method 8015 modified, and BTEX using EPA Method 8020. Analysis of <br /> oxygenate fuel additives is not recommended since all previous analytical results indicate that they <br /> are nondetectable. 6( (� f , . <br /> U ► i <br /> J <br /> 10.4 Closure Report Preparation <br /> Upon completion of all remediation activities, a report requesting closure of the site will be <br /> Iprepared for submittal to PHS/EHD the California Regional Water Quality Control Board. <br /> w:1822541sumrpt,doc 1 <br />