SITE INFORMATION AND CORRESPONDENCE

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k.d Background Information: Swift Roofing Page 2 of 3 UNDERGROUND STORAGE TANK REMOVAL It is our understanding that one 1,000-gallon leaded gasoline,steel underground storage tank(UST) was removed in May 1990.An EHD approval UST removal permit was issued in June 1990 and the removal was brought into compliance. It does not appear that confirmation soil sampling was performed at the time of removal. PREVIOUS SITE ASSESSMENT On 24 July 2007, one soil probe boring (B1) was advanced in the former UST area. Discrete soil samples were collected at 5-foot intervals, beginning at 5 feet bsg, to the total depth of the boring at 20 feet bsg. In addition, one grab ground water sample was collected from boring 131 at total depth, • TPH-g and BTEX compounds were detected in soil sample B1-10 at concentrations of 560 milligrams per kilogram (mg/kg), 0.030 mg/kg, 0.50 mg/kg, 8.8 mg/kg, and 43 mg/kg, respectively. , • TPH-g and BTEX compounds were detected in the grab ground water sample B-1 W at concentrations of 2,200 micrograms/liter(µg/l), 3.0 gg/l, 9.3 µg/1, 240 }ig/l, and 710 gg/l, respectively On 31 January 2008, six soil borings were advanced at location CPT-1 for one cone penetrometer testing. CPT-1 was located in the former UST area(Figure 2), Discreet soil samples were collected from three separate borings adjacent to the CPT-1 boring at depths of 30, 40 and 50 feet bsg. Additionally, discrete groundwater samples were collected from two separate borings adjacent to the CPT-1 boring location at depths of46 and 58 feetbsg.Constituents of concern were not reported in any of the soil or grab ground water samples collected from the CPT-1 boring location. On 04 February 2008, three soil borings (MW1, MW2, and MW3) were advanced at the site. The boring s were completed as ground monitoring wells MW-1, MW-2,MW-3. Discrete soil samples were collected at 5-foot intervals,beginning at 5 feet bsg,to the total depth of the borings at 20 feet bsg. Total xylenes were reported in the soil sample collected from MW3-5 at a concentration of 0.046 mg/kg. In March 2009,Advanced GeoEnvironmental Inc. prepared a Closure Summary Report, dated 05 March 2009,requesting site closure,based on results of subsurface investigation of the UST area at the site. Advanced GeoEnvironmental,Inc.