WORK PLANS_FILE 2 - Laserfiche WebLink

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C A M B R I A Ms. Gori Duncan November 18,2005 Site Health and Safety Plan: The general contractor will be required to prepare a comprehensive site safety plan to protect site workers. The plan will be kept on site during field activities and will be reviewed and signed by each worker and all visitors to the site during construction activities. Cambria will prepare a site safety plan to protect its employees during oversight construction work. Construction: Cambria will provide oversight of construction activities included in the contractor's scope of work. The contractor will arrange all required inspections. The schedule to install the DPE system is contingent on issuance of all applicable permits and the contractor's availability. © DPE System Operation and Maintenance Site Health and Safety Plan: Cambria will prepare a site-specific health and safety plan for routine operation and maintenance activities. The plan will be kept on site and signed by Cambria's technician each site visit, by any subcontractors performing work on the DPE system, and by any visitors or inspectors entering the established work zone. Start-up: Start-up of the DPE system will be conducted after final inspection approval and in accordance with the SJVAPCD permit and waste discharge permit. The SJVAPCD typically requires analysis of the inlet and exhaust streams within the first 10 days of operation to confirm compliance with the total flow rate, benzene emission limits, and constituent destruction efficiency requirements. Cambria will collect wastewater discharge compliance samples and submit results in accordance with the OMI wastewater discharge permit requirements. A summary report of start-up activities will be submitted in accordance with permit conditions. Data Collection and Optimization: Cambria anticipates conducting semi-monthly operation and maintenance site visits. Data will be collected on site-specific standard forms (Attachment D). During each site visit, Cambria will record the operational status, hour meter reading, groundwater flow rate, and flow totalizer meter reading. The depth to water in on-site DPE wells and monitoring wells will be measured periodically to verify drawdown in the extraction wells and to asses the level of hydraulic control achieved via DPE. The DPE stinger depths may be adjusted periodically to maximize hydraulic control and/or dewater certain areas beneath the site for more effective SVE. Cambria will monitor pump vacuum, system vacuum, well vacuum, system flow, dilution air flow, well flow,and system temperatures to assess Solleco unit operation. A thermal anemometer will be used to measure extraction flow rates. Cambria will monitor vapor concentrations entering and exiting the Solleco unit to evaluate destruction efficiency and permit compliance. Field vapor concentrations will be measured with a Horiba model MEXA554JU organic vapor analyzer(OVA)or equivalent instrument. Vapor concentrations from the extraction wells will be I1