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Ozone Remediation - Pilot Test Work Plan <br />San Joaquin County Public Works, Stockton, CA <br />June 15,2015 <br />Page 5 <br />time. Before and during the ozone remediation pilot test, the groundwater samples collected during the <br />regular monitoring schedule will also be analyzed for arsenic and chromium by EPA Method <br />E200.7/6010 and for hexavalent chromium by EPA Method E218.6; each sample collected in one 250 <br />milliliter plastic container with nitric acid preservative and a 180 day hold time. The soil samples will be <br />analyzed for hydrocarbons using the same methods and for LUFT 5 Metals by EPA 7000 Series Methods <br />to characterize the soil for disposal. <br />5.0 REPORTING <br />Condor will prepare a report detailing the installation of the ozone injection wells, and the installation and <br />startup of the ozone injection system, to be submitted to the SJCEHD and the California Regional Water <br />Quality Control Board (CRWQCB). The report will include a discussion of the field procedures, geologic <br />logs of the well borings, and a discussion of the installation and startup of the ozone injection system. <br />Condor will also submit the report in electronic format to GeoTracker. <br />6.0 SCHEDULE <br />Condor will begin soliciting bids for the ozone generator and the installation of the ozone injection wells <br />upon approval of this work plan by SJCEHD. Condor anticipates that property manager budget <br />constraints will allow for the installation of the ozone injection wells within the 2015/2016 fiscal year. <br />However, installation and startup of the equipment may not be practical until the 2016/2017 fiscal year. <br />Semi-Annual monitoring will continue to be performed. <br />If you have any questions or require additional information, please call Bill Cook at (209) 938-1044. <br />Respectfully submitted, <br />CONDOR EARTH TECHNOLOGIES, INC. <br />cede_ <br />Bill A. Cook III, P.G. <br />Senior Geologist <br />X:\Project 5000_1)d 5960 SJC UST RFQ 5960C County of San Joaquin - SJC Public Works 5960C3 Repons.ozone pilot test WP DWP <br />20150608-5960C3 ozone.doc <br />•