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background sample (Background). Due to the challenge of analyzing for specific chemicals within each pesticide product, an analysis plan of Total Extractable Petroleum Hydrocarbons(TEPH),to capture mineral oil, and the EPA 8270C SVOC panel, to capture a least a few of the pesticide chemicals, was chosen as indicators to determine the most impacted areas of the spill. Additionally, a fish bioassay was conducted on a composite sample (all samples that had mineral oil present, S-2, S-3, S-4, S-4@2')to test for potential aquatic toxicity. Sample locations are identified on Figure 3. • Analytical results showed all tested analytes to be non-detect(ND) for all soil samples, except for mineral oil,which was present within soil samples S-2, S-3, S-4, S-4@2' and the background sample at 195mg/Kg, 449mg/Kg, 338mg/Kg, 235mg/Kg, and 143mg/Kg respectively (Table 1 and Attachment B). • Results from the fish bioassay, derived using an 8 oz composite of the four soil samples with elevated mineral oil levels(S-2, S-3, S-4, and S-4@2'), conclude there was a 100% survival rate at the 750mg/L test range (which is greater than the hazardous waste classification threshold of 500mg/L as defined by CA Title 22 CCR 66261.24), resulting in the material not being considered a hazardous waste with respect to acute aquatic toxicity(Table 2 and Attachment B). • Based on the analytical results,the fish bioassay, and the location where the spill occurred (active farming operation with no direct connection to a surface water body), WHF, Inc. concludes the spill has no potential impact to the environment and are recommending that no further action be required.