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18 June 2010 <br /> AGE-NC Project No. 07- 1529 <br /> Page 2 of 3 <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 a period 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 /> DISCHARGE MONITORING <br /> During the pilot test, the proposed media will be monitored into each borehole using a Sensus flow <br /> meter (or equivalent). The volume (in gallons) will be measured at each increment of the injection <br /> and recorded on apre-fabricated field sheet. The amount of amendment injected into the subsurface <br /> and the total poundage of material used for injection will be recorded independently for each <br /> injection point. <br /> AMENDMENT ANALYSIS <br /> Prior to the injection the proposed amendment will be analyzed one time in pure form and one time <br /> at the proposed concentration for the following constituents: <br /> • Volatile Organic Compounds by EPA method 8260; <br /> • Semi-Volatile Organic Compounds by EPA method 8270; <br /> • General Minerals : Alkalinity, bicarbonate, potassium, chloride, sulfate, total hardness, <br /> nitrate, nitrite and ammonia; and <br /> • pH by EPA method 150. 1 <br /> REPORTING <br /> Upon completion of Feld work and receipt of final laboratory analysis, a report will be prepared <br /> presenting the findings of the investigation. The report will include a description of the work <br /> Advm ced GeoEnvironmentml, Inc <br />