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• 2.3 CHEMICAL OXIDATION SYSTEM OPERATION <br />' The proposed chemical oxidation pilot test is expected to be performed for at least 1 week <br /> Further continuance of the pilot test will be based on the field and analytical data The proposed <br /> system operation schedule is included in Table 2 The infection system is fully automated and <br /> capable of operating 24 hours a day The automated control panel is configured to pulse ozone <br /> and hydrogen peroxide flow to each of the infection points in a pre-determined fashion and can <br /> be easily reconfigured, based on evaluation of operational data, to optimize system performance <br /> The system operations will be inspected daily for a week, and weekly thereafter <br /> Remedial system performance, operating infection points, flow, and piping integrity will be <br /> inspected every day for the first week of operation and once a week thereafter if the pilot test is <br /> continued Dissolved oxygen concentrations, pH, ORP, temperature, and pressure influence will <br />' also be measured and recorded from vanous observation points during each visit <br /> Groundwater samples will be collected from selected site wells prior to the test, at the end of the <br /> first week of testing, and, if the test is extended, monthly until the end of the test and 1 month <br /> following the end of the test to evaluate the performance of the remediation system and to assess <br /> site conditions <br />' A soil vapor extraction system will be operated concurrently at the site to prevent the <br /> accumulation of volatile organic compounds, oxygen, or ozone in the subsurface Ambient air <br />' readings will also be monitored as a conservative measure <br /> 2.4 SOIL VAPOR EXTRACTION SYSTEM <br /> As some hydrocarbons may be volatilized, a soil vapor extraction system will be used to abate <br /> hydrocarbons and/or ozone in the vadose during any field study The existing soil vapor <br />' extraction (SVE) system is capable of extracting soil vapors from wells MW2, MW3, MW5, <br /> MW6, V1, V2, and V4 Soil vapors will be extracted using a regenerative blower, and treated <br /> with two 2,000 pound activated carbon vessels in series Treated vapors will be discharged to <br />' the atmosphere under a Permit to Operate issued by the San Joaquin Valley Unified Air Pollution <br /> Control District There will an interlock between the SVE and oxidant infection system to ensure <br /> that oxidants are not infected if the SVE system shuts down <br /> G 1Projects173942\MASTERNWP1WP0705VOmne Injection Pilot Test Work Plan doc <br /> 6 <br />