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a 13 March 2012 AGE-NC Project No. 99-0682 Page 4 of 5 On 15 February 2012, ground water samples were collected from wells MW- 1A, MW-2, MW-6, MW- 7, MW-8 and MW- 10. Samples collected from the wells were analyzed for dissolved iron and alkalinity based on the above directive. Procedures from monitoring and sampling were outlined in email correspondence with EHD dating 24 January 2012 (Appendix C) . Alkalinity was measured at concentrations ranging from 210 mg/1 (MW- 10) and 510 mg/1 (MW- 1A). Based on these results it does not appear that any deviation from the previously outlined procedures for solution preparation is necessary.However,pH measurements will be collected from each hydrogen peroxide/acid solution and from each well after injection to determine the pH of the ground water afterinjection. Based on the pH, more or less acid will be used during subsequent injection events at the specific well locations. The laboratory report (Cal Tech Environmental Laboratories Project No. CT214- 1202130), quality assurance/quality control reports, and chain-of-custody forms are included in Appendix D; field logs from the limited monitoring event are included in Appendix E. The electronic deliverable format (EDF) file will be uploaded to the State Geo Tracker database. 1� . Establish a field monitoring and sampling program that will adequately monitor the dispersion of the oxidant and the effectiveness of the treatment in three dimensions . A sufficient number or monitoring wells should be utilized , at differing distances from the injection points , to track dispersion of the oxidant and collect adequate monitoring data . AGE has submitted the required DRAFT monitoring and reporting program (MRP) to Jim Barton of the California Regional Water Quality Control Board - Central Valley Region �qr) J (Regional Board). The Regional Board subsequently approved the MRP by email dating ! 29 December 2011; EHD was copied of the approval correspondence from the Regional Board. AGE has attached, in Appendix F. the Regional Board-approved MRP, which j should be adequate to monitor the dispersion of the oxidant and effectiveness of the treatment in three dimensions. Advanced GeoEnvironmental, Inc.