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hydrocarbons and elevated levels of metals were detected in soil at various locations around this <br /> operational area. <br /> Six borings were used to investigate areas of interest in the CSMS building shop area. Boring B- <br /> 6 was analyzed for CDCs associated with a former 2,000-gallon waste water sump formerly <br /> located on the east side of the CSMS building. No COCs were detected above method detection <br /> limits at a depth of ten feet bgs. Borings B-12 and B-13 were analyzed for CDCs associated with <br /> lead-acid battery storage and filling at an active and former location for battery storage and <br /> filling. An elevated concentration of lead (144 mg/kg)was detected at boring B-7 at a depth of <br /> one foot below the surface of the concrete floor at the location of former battery -related <br /> activities. This concentration of lead is well below regulatory action levels for cleanup. Borings <br /> B-12 and B-9 were analyzed for hydraulic oil from hydraulic lifts. Boring B-7, located in the <br /> pressure/steam wash bay of the CSMS shop area,contained soil at ten feet bgs with a <br /> concentration of 1,630 mg/kg hydraulic oil. Boring B-9, located in a vehicle inspection bay of <br /> the CSMS shop, contained less than the detection limit of 500 mg/kg hydraulic oil at ten feet bgs. <br /> Boring B-8 was advanced to assess if a release had occurred from a clarifier and sewer line <br /> junction leading from the pressure/steam washer at the CSMS. Petroleum hydrocarbons and <br /> VOCs were not detected in soil at ten feet bgs, and in soil vapor, respectively. <br /> Four borings, B-10, B-11, B-14, and B-19, were advanced to investigate areas of potential <br /> environmental impact east of the CSMS building. Boring B-10 was located at a former <br /> . hazardous materials storage shed. A trace concentration of hydraulic oil-weight petroleum <br /> hydrocarbon was detected at a depth of ten feet bgs, no other CDCs, including VOCs in soil <br /> vapor, were detected. Boring B-11 was advanced where sand blasting activities may have <br /> resulted in a heavy metals impact to the subsurface. Metals detected in the sample from this <br /> location contained concentrations similar to background levels for this area(USGS, 1984). <br /> Boring B-14 was advanced to assess potential impacts resulting from use of a wash rack and <br /> hazardous waste sheds. COCs, including semi-volatile and volatile organic compounds, were not <br /> detected at five feet bgs. Hydraulic oil petroleum hydrocarbon was detected at a concentration of <br /> 123 mg/kg at five feet feet bgs. Boring B-19 was advanced in the radiator shop area of shop <br /> building no. 3. COCs, such as ethylene glycol, VOCs, and heavy metals, were not detected at a <br /> depth of 10 feet bgs. <br /> Ten shallow borings and surface sample locations,B-15b &c, and B-16a,b,c through B-18a,b,c, <br /> were used to collect soil and soil vapor samples to assess the impact of surface runoff to an <br /> unlined ditch draining vehicle and equipment storage areas located in the northeastern portion of <br /> the CSMS area, east of the CSMS and Armory buildings. The locations of the ditch, areas of <br /> runoff, and sample collection points are presented in Figure 4. The positive results of the soil <br /> and soil vapor sample analyses are presented in Figure 6. Soil samples were collected at the <br /> surface of the ditch halfway below the ditch crest, and at a depth of five feet below the crest of <br /> the ditch. Soil vapor samples were collected at the five foot depth. The surface and five-foot bgs <br /> soil samples were composited in the laboratory in groups of two or three. VOCs were not <br /> • detected in any of the soil vapor samples. Petroleum hydrocarbons were not detected in two of <br /> 2187-01/3134100/MAY26'00 11 <br />