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location of the release and all soil sample locations can be found attached on Figure 2 and Figure <br /> 3. <br /> 1.1 Soil Sampling <br /> All soil sampling equipment was thoroughly cleaned before and between sampling to prevent <br /> cross contamination. Soil samples were collected by employing the use of a hand auger and <br /> hand driven sampler. A total of nine (9) soil samples were collected, six(6) surface samples <br /> were collected within the perimeter of the spill (S-1 thru S-6),two (2) samples were collected at <br /> a depth of 2' below ground surface within the spill boundary(S-4@2' & S-5@2'), and one (1) <br /> sample was collected outside the release area as a background sample (Background). <br /> The samples were collected in a 1.5" diameter by 6" long stainless steel sleeves from relatively <br /> undisturbed soils using a hand driven sampler. The laboratory samples did not have head space <br /> and were immediately sealed in the liners using Teflon® lined plastic caps. The samples were <br /> then logged on a Chain of Custody(Attachment B) and placed in an ice chest with Blue Ice®to <br /> await transport to the laboratory. At no time were the samples opened by anyone other than <br /> laboratory personnel. <br /> The soil samples collected for analysis were analyzed using EPA method 8015B for Total <br /> Petroleum Hydrocarbons (diesel range organics,kerosene range organics, mineral oil range <br /> organics, and motor oil range organics), and EPA method 8270C for semi volatile organic <br /> compounds (SVOC). Analyses was conducted by GeoAnalytical Laboratories, Inc., a State- <br /> certified laboratory located in Turlock, California. An additional fish bioassay analysis was <br /> conducted on a composite of soil samples S-2, S-3, S-4, and S-4@2' at Pacific Ecorisk <br /> Environmental Consulting& Testing, located in Fairfield, California. <br /> Due to the pesticide mix containing several products (three separate pesticides products, a liquid <br /> micronutrient, and mineral oil)the above analysis was chosen to capture some of the known <br /> products within the pesticide mix and to help determine which areas of the spill were most <br /> heavily impacted. Following the initial analytical results, a fish bioassay analysis was conducted <br /> on a composite of the four samples with elevated mineral oil in order to further evaluate the <br /> potential impact to the surrounding environment. <br /> 2.0 Analytical Results <br /> 2.1 Soil Sample Results <br /> All soil samples were free from all detectable levels of contamination for kerosene, motor oil, <br /> diesel, and SVOC's. In addition, samples S-1, S-5, S-6, and S-5@2' were below the detection <br /> limit for mineral oil. However, samples S-2, S-3, S-4, S-4@2', and the background sample all <br /> contained detectable levels of mineral oil at 195mg/Kg,449mg/Kg, 338mg/Kg, 235mg/Kg, and <br /> 143mg/Kg respectively. Certificates of Analysis and Chain of Custody can be found attached in <br /> Attachment B of this report, and the location of each soil sample is identified on Figure 3. <br />