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y <br /> REVIEW OF PREVIOUS ENVIRONMENTAL AND GEOTECHNICAL STUDIES (cont.) <br /> Date: January 27, 1994 <br /> Subject: Soil and Groundwater Analysis-Monitoring Well Installation <br /> Prepared by: Advance Soil Technology, Inc. <br /> Addressee: Grantline Gas and Food <br /> Summary: On January 5, 1994, a total of five soil borings were drilled to depths ranging from 5 to 20 feet <br /> below ground surface (bgs). Water samples were extracted from the three borings that were converted into <br /> groundwater monitoring wells. Water samples were tested for lead, TPHg , TPHd , and BTEX. Peak TPH and <br /> BTEX results from the groundwater samples were reported at 2,300 ppb, 12 ppb, I Ippb,N.D. and 42 ppb.' <br /> ' Diesel, lead,and VOCs were reported in nondetect. <br /> Date: May 18, 1994 <br /> Subject: Quarterly Groundwater Monitoring-First Quarter 1994 <br /> Prepared by: Advance Soil Technology, Inc. <br /> Addressee: Grantline Gas and Food <br /> Summary: Quarterly groundwater sampling of 3 wells occurred on April 13, 1994. 'Peak BTEX <br /> concentrations were reported at 23 ppb,ND,ND, and 5.3 ppb. <br /> ' Peak TPHg and TPHd concentrations were reported at 190 ppb and 160 ppb, respectively. <br /> Date: October 30, 1996 <br /> Subject: Quarterly Report- September 1996 <br /> Prepared by: Advanced GeoEnvironmental, Inc. <br /> Addressee: Grant Line Gas and Food <br /> Summary: Quarterly grounded sampling of 6 wells occurred on Septembe 12, 1996. Collected groundwater <br /> samples were tested for TPHg, TPHd, BTEX, and MTBE. A sheen of free product was observed in MW4 and <br /> MW-5. Peak TPHg and TPHd concentrations were observed in MW-4 and MW-5. Peak TPHg and TPHd <br /> concentrations were reported at 1,200 and 43,000 ppb. Peak BTEX and MTBE concentrations were reported at <br /> 23 ppb, 4.7 ppb., 2.0 ppb, 7.0 ppb and 1,700 ppb, respectively. <br /> D-2 <br />