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u <br /> ATTACHMENT C <br /> Monitoring and Reporting Program <br /> Apache Plastics <br /> 2050 East Fremont Street, Stockton, California <br /> GROUND WATER MONITORING <br /> The ground water monitoring program for wells associated with the proposed pilot study will follow <br /> the schedule below. <br /> PRE-RegenOxTM INSTALLATION BACKGROUND WATER SAMPLE COLLECTION <br /> Prior to injection of RegenOxTM media, background ground water samples will be collected from <br /> wells MW-9, EW- 1 , VEW-2 and MW- 11 and analyzed by a California Department of Public Health <br /> (CDPH)-accredited laboratory for the following: <br /> • TPH-g in accordance with EPA Method 8015 Modified; <br /> • Benzene, toluene, ethylbenzene and total xylenes (BTEX compounds) and the fuel additives <br /> tertiary amyl methyl ether (TAME) and 1 ,2-DCA by EPA Method 8260B and <br /> • Total organic content (TOC). <br /> During each monitoring event, a low-flow pump system will be used to purge the proposed wells <br /> and all evacuated ground water will be monitored with a YSI 556MPS. The proposed equipment is <br /> capable of collecting and storing all data recordings for aperiod of 30 seconds. Purged ground water <br /> will be routed through a flow-through cell, not exposed to the atmosphere, minimizing spikes in <br /> dissolved oxygen. The proposed instrument will collect pH, electrical conductivity, temperature, <br /> DO, ORP, total dissolved solids and salinity through the duration of the monitoring and sampling <br /> events. All readings will be recorded during the beginning of purging and during each subsequent <br /> purge volume. <br /> POST-INJECTION/COMPLIANCE MONITORING <br /> Post-RegenOxTM injection, AGE proposes to monitor the effectiveness of the chemical oxidation <br /> reactions through six weeks of bi-weekly sampling events utilizing wells VEW-2, MW-9 and E W- 1 . <br /> Additionally, AGE proposes to monitor MW- 1I to gauge any adverse reactions or conditions down <br /> gradient of the proposed pilot test treatment area. Collected ground water samples will be analyzed <br /> by a CDPH-accredited laboratory for: <br /> • TPH-g in accordance with EPA Method 8015 Modified; <br /> AdvancedGeoEnvimn enta4 Inc <br />