ARCHIVED REPORTS 2nd QUARTER 2011 QUARTERLY REPORT

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Site Background Information: Herman and Helens Marina Page 7 of 13 (B11-22). BTEX compounds were detected in samples B11-22, B11-23, B11-26, B12-20, B12-22, B12-26, B12-30, B13-6 and B13-10 at maximum concentrations of 5.4 mg/kg benzene (1311-23), 86 mg/kg toluene (1312-20), 38 mg/kg ethylbenzene (1311-22) and 131 mg/kg total xylenes (612-20). MTBE was detected by EPA Method 8260B in samples B13- 6 and B13-10 at concentrations of 0.5 mg/kg and 0.038 mg/kg, respectively. In addition, MTBEwas detected in samples 1311-30, B11-34, 1311-42, B11-46, B12-14, B12-26, B12-30, B13-6 and 813-10 at a maximum concentration of 99 micrograms per liter(Ng/1), in sample 1313-6, utilizing EPA extraction Method 1311 (TCLP). Physicochemical analysis of four selected soil samples (612-26, B12-38, B13-14 and 813- 23) determined a pH range of between 7.1 and 7.2, nitrate-nitrogen range between 6 and 9 ppm, nitrate ion range between 26.4 and 39.6 ppm, ammonia-nitrogen range between 17 and 24 ppm, ammonia ion range between 21.93 and 30.96, Ortho-phosphate range between 34 and 38 ppm and potassium range between 56 and 64 ppm. Microbial enumeration determined the populations of general microbes (heterotropic, nonspecific) at (12.1 to 17.8 ) x 105 and specific microbes (gasoline/diesel specific) at (2.4 to 3.5) x 105; specific microbes comprised between 16.88% and 19.83 % of the microbe population. TPH-g was detected in the ground water samples collected from borings 1311, B12, and B13 at concentrations of 5,300 pg/1, 7,900 pg/I and 6,500 pg/1, respectively. BTEX compounds were detected in the ground water samples collected from the borings at concentrations as high as 330 pg/I benzene (1312), 670 pg/I toluene (1313), 330 tag/I ethylbenzene (1312) and 1,520 pg/I total xylenes (1312). Fuel additives, including MTBE, were not detected at or above laboratory reporting limits in the ground water samples. Additional information can be found in the AGE-prepared Additional Soil and Ground Water Investigation Report dated 11 April 2003. Four geoprobe soil borings (1314 through B17) were advanced and sampled in November 2003. Four cone penetration test (CPT) borings (CPT-1 through CPT-4), each paired with a hydropunch boring, were advanced in December 2003. Four ground water monitoring wells (MW11 through MW14) were installed and developed, and one ground water monitoring well (MW-1) was destroyed and abandoned in December 2003. Pilot borings MW11 through MW14 were completed as ground water monitoring wells MW- 11 through MW-14 using two-inch diameter PVC casing with 0.020-inch slotted screen installed from approximately 3 feet to 13 feet bsg in MW-12 through MW-14 and from approximately 70 feet to 80 feet bsg in MW-11, with blank casing extended to the surface. The filter pack (No. 3 Lonestar sand)was installed from approximately 2 feet to 13 feet bsg in MW-12 through MW-14 and from approximately 68 feet to 80 feet bsg in MW-11. A nominal 1 to 2-foot interval of bentonite pellets was then installed above the filter pack and Advanced GeoEnvironmental,Inc.