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Decatur,City of,Mound School Bodine Project#114675 <br /> Phase II Subsurface Investigation Report August 29 2003 <br /> 2.0 Phase II Investigation: <br /> Bodine received the signed service agreements on July 3, 2003. Coordination with the <br /> Decatur Public School District for site access was initiated with the preparation of an access <br /> agreement,which was signed on July 24, 2003. Bodine marked the exterior locations for <br /> proposed borings to assist the utility locates on July 18, 2003 and contacted the Joint Utility <br /> Locating Information for Excavators(JLJLIE), Dig#A2032830. In addition, Bodine <br /> contacted the City of Decatur to request marking of the sewer and water lines. <br /> Bodine entered into sub-contract agreements with Advanced Environmental Drilling <br /> Company and Pine Environmental Services for the drilling of outdoor and indoor drilling, <br /> respectively. Based upon scheduling opportunities, Bodine initiated the outdoor boring <br /> investigation on July 25, 2003. Interior borings were initiated on July 28,but repairs to the <br /> Decatur Public Schools Local Area Network System extended the interior operations through <br /> August 1, 2003. <br /> 3.0 Backup Generator UST Location: <br /> After the utility locates had been completed, Bodine adjusted the boring locations to avoid <br /> encountering the identified utilities. Bodine established Data Quality Objectives(DQOs) for <br /> this project as obtaining sufficient number of borings, no less than six,to determine the <br /> approximate location of the tank and obtain samples of sufficient quality and quantity to <br /> meet the Illinois Environmental Protection Agency(IEPA) Site Remediation Program (SRP) <br /> standards for obtaining a No Further Remediation(NFR) letter. <br /> While the proposal indicated only six(6) borings, Bodine utilized a systematic sampling <br /> approach to step out from each of the borings to adjacent locations. Ultimately, a total of 11 <br /> borings were completed as indicated in Figure 1. The increase in the number of borings was <br /> directed by Bodine to insure the data quality objectives established for this project were <br /> achieved. As the number of borings were increased, Bodine maintained the number of <br /> samples collected for laboratory analysis at 6 samples for Benzene, Toluene, Ethylbenzene <br /> and Total Xylenes(BTEX) and Poly-cyclic Aromatic Hydrocarbons (PAHs), otherwise <br /> referred to as Polynuclear Aromatic Hydrocarbons (PNAs). <br /> 3.1 Field Investigation Summary: <br /> On July 25, 2003, Bodine mobilized a Direct Push Technology(DPT) unit, service <br /> vehicle,personnel and equipment to the site for the purpose of completing subsurface <br /> investigations outside of the Mound School. <br /> Bodine had previously established locations based upon design drawings obtained from <br /> the Decatur Public School District, see Attachment A. After the utility locates were <br /> completed, Bodine adjusted the locations to avoid impacting existing utilities. In <br /> 2 <br /> !ii)UINE:ENV(RONMENTAL SERVICES, INC. -- <br />