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k' ■ KLEINFELDER <br /> • Examination of at least four generations of historical aerial photographs (part of Phase I <br /> Environmental Site Assessment); <br /> • A hydrogeologic and groundwater usage investigation (part of Phase I Environmental Site <br /> Assessment); <br /> • A soil sampling program; <br /> • A groundwater sampling program; <br /> • A waste stream sampling program; and <br /> • A report summarizing all of the obtained historical and sampling information. <br /> In the RWQCB's request letter dated April 26, 2002, for a workplan to investigate the soil and <br /> groundwater at the subject property the RWQCB requested that the investigation workplan <br /> include in part the following analyses of selected soil and groundwater samples: <br /> • Pesticides <br /> • Fumigants (including ethylene dibromide, 1,3-dichloropropene, and dibromochloropropane, <br /> • Fertilizer constituents (including ammonium, nitrate, nitrogen, phospate, and sulfate),. <br /> • Carbamates, <br /> • Organophosphates, <br /> • Metals, <br /> • Total Petroleum Hydrocarbons as diesel, <br /> • Total Petroleum Hydrocarbons as gasoline, <br /> • Aromatic Hydrocarbons, <br /> • Fuel Oxygenates, <br /> • Chlorinated Hydrocarbons, <br /> • Volatile Organic Compounds, and <br /> • Semi-Volatile Organic Compounds <br /> • Total Dissolved Solids <br /> Kleinfelder's workplan was implemented in phases with an initial Phase I Environmental Site <br /> Assessment with conclusions and recommendations to be followed with a detailed scope of work <br /> (this revised workplan) discussing further soil and water characterization on the site with the <br /> items noted above. The phased approach was discussed with the RWQCB and addressed in <br /> Kleinfelder's addendum to the original workplan dated September 17, 2002, and revised proposal <br /> dated January 15, 2003. <br /> This Revised Workplan is subject to the limitations presented in Chapter 7. Any other party <br /> other than Ms. Schmiedt who would like to use this document shall notify Kleinfelder, Inc. of <br /> such intended use by executing the "Application for Authorization to Use" contained in <br /> Appendix B. <br /> 27125.E01 /ST03R657 Page 2 of 15 <br /> Copyright 2003,Kleinfelder,Inc. May 23,2003 <br />