Laserfiche WebLink
1 <br /> turbid grab water sample acquired from SBR-8 <br /> The soil profile encountered while advancing boring SBR-9 <br /> consisted of 3 inches of asphalt underlain by inorganic , <br /> ' slightly moist , light-brown clay to 1 foot . Slightly <br /> moist , inorganic dark-colored clay exhibiting an oil -like <br /> odor was present to 2 feet This was underlain by moist , <br /> ' plastic , inorganic light-brown clay to approximately 5 5 <br /> feet A slight oil-like odor was present throughout this <br /> interval Moist , inorganic dark-brown clay was present <br /> between approximately 5 5 and 8 5 feet . Very moist , <br /> ' malodorous , inorganic brown clay with olive colored streaks <br /> was present to approximately 9 feet at which point <br /> saturated, inorganic brown silty clay was encountered <br /> The soil profile encountered while advancing boring SBR-10 <br /> consisted of 3 inches of asphalt underlain by sand and <br /> gravelly fill to I foot . Olive-gray sandy clay was present <br /> ' at 3 feet , becoming light olive-brown at 6 feet feet The <br /> soil was damp and stiff at 3 ft and 6 ft Soils were stiff <br /> between approximately 1 ft and 7 5 feet The soil sample <br /> ' acquired at 3 ft and 6 ft were free of hydrocarbon odor . <br /> Olive-gray fine , well sorted, rounded, medium dense, very <br /> moist silty sand containing approximately 40% silt was <br /> encountered between approximately 7 . 5 feet and 10 feet <br /> Strong hydrocarbon-like odor was present in this interval . <br /> 867 parts per million (ppm) combustible vapors were present <br /> in the sample acquired at 8 feet . Groundwater was <br /> encountered at approximately 8 feet A strong odor, also <br /> consistent with that of fuel hydrocarbons , was present in <br /> the moderately turbid grab water sample acquired from SBR- <br /> 10 <br /> RESULTS OF LABORATORY ANALYSES OF SOIL AND GROUNDWATER <br /> SAMPLES ACQUIRED FROM THE EXPLORATORY SOIL BORINGS <br /> Certified laboratory analyses of discrete soil and grab <br /> water samples from each of the ten borings advanced on site <br /> revealed the presence of detectable concentrations of duel <br /> hydrocarbon compounds The results of these analyses are <br /> ' summarized in Table 1 <br /> ' Page 7 <br />