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Table 1: Summar of Anal tical Data Sample ID Date Mineral Oil Kerosene Motor Oil Diesel SVOC's (mg/Kg) (mg/Kg) (mg/Kg) (mg/Kg) (µg/Kg) S-1 7/22/20 ND ND ND ND ND S-2 7/22/20 195 ND ND ND ND S-3 7/22/20 449 ND ND ND ND S-4 7/22/20 338 ND ND ND ND S-5 7/22/20 ND ND ND ND ND S-6 7/22/20 ND ND ND ND ND S-4@2' 7/22/20 235 ND ND ND ND S-5@2' 7/22/20 ND ND ND ND ND Background 7/22/20 143 ND ND ND ND ND=non-detect above reporting levels A fish bioassay(California Title 22 Hazardous Waste Acute Toxicity Evaluation) was also completed, 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'). The samples utilized for the fish bioassay were properly stored at the GeoAnalytical Laboratories,within a refrigerator maintained at a consistent 4.7°C,prior to shipment to the Pacific Ecorisk Environmental Consulting& Testing facility. A tabular summary is found below, and the Certificate of Analysis and Chain of Custody are found in Attachment B. Table 2: Tabular Summary of Fish Bioassay Sample ID Sample Date LCso (mg/L) Composite (S-2, S-3, S-4, & S-4@2') 7/22/2020 > 750 The fish bioassay analysis 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. 3.0 Conclusions and Recommendations Based on the data generated during this scope of work, WHF, Inc. has made the following conclusions and recommendations: • To investigate the nature of the material impacted by the release, a total of nine (9) soil samples were collected, six(6)surface samples from within the perimeter of the spill (S- 1 thru S-6),two (2) samples at a depth of 2' below ground surface within the spill boundary (S-4@2' & S-5@2'), and one (1) sample from outside the release area as a