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Wet Fertilizer Mixing Stations <br />Bonnie Plants personnel tightened all leaky connections at the wet fertilizer mixing stations and provided <br />secondary containment for these locations as well. Pictures of the secondary containment for the wet <br />fertilizer mixing stations that were taken on March 22, 2022, are provided in Appendix E. <br />CONCLUSIONS <br />In response to the SJCEHD's August 2021 Notice to Abate, Atlas performed a combined GPR/EMI survey <br />that indicated that no additional cars were buried at the Bonnie Plants facility. Atlas personnel conducted <br />a site assessment event on November 14, 2021, to show that the area where the car was buried was 'free <br />of contamination' per the SJCEHD Notice to Abate. Laboratory analytical results for soil samples collected <br />during the November 14th assessment yielded trace concentrations of TP-d, TPH-mo, TPH-rr PCE and 1,1- <br />trichloroethane that were below their respective SFBRWQCB ESLs. After the November 2021 assessment <br />activities were concluded, Atlas personnel oversaw the hand excavation of impacted soil where the 'dark <br />oily staining near the silo' was observed. Results of confirmation soil sample Waste Profile #1, collected <br />upon completion of the hand excavation, indicate that the soil excavation efforts were successful in <br />removing the impacted soil and no analytes detected above their respective laboratory reporting limits in <br />soil sample Waste Profile #1 were in excess of their respective ESLs. <br />Based on elevated laboratory analytical results for soil sample JCS-1, collected in the soil beneath where <br />the Jeep was placed after exhumation, Atlas personnel returned to the site on February 22, 2022, to <br />perform soil sampling at the locations shown in Figure 2. Analytical results for soil samples collected on <br />February 22, 2022, yielded trace concentrations of VOC and TPH constituents and metals. Laboratory <br />analytical results for soil samples collected during the February 2022 assessment were below their <br />respective SFBRWQCB ESLs with the exception of arsenic concentrations that fall within background <br />arsenic concentrations for the area. <br />Laboratory analytical concentrations for all soil samples collected during the November 4, 2021, and <br />February 22, 2022, site assessment events indicate that excessive soil contamination is not present where <br />the car was buried or where the car was placed after it was exhumed. The laboratory analytical results <br />for VOCs and TPH analytes and metals observed for soil samples collected during the February 22 <br />assessment indicate that the petroleum impact observed in analytical results for soil sample JCS-1 is <br />limited to surficial soil where the car was placed prior to offsite transportation and disposal. <br />Atlas personnel worked with Bonnie Plants management to provide secondary containment for all wet <br />and dry fertilizer storage locations. Atlas personnel reported the required hazardous materials business <br />plan inventory requirements for the hazardous materials stored onsite to the CERS system on October 29, <br />2021. All corrective actions related to secondary containment issues observed by SJCEHD personnel were <br />addressed by March 22, 2022. Therefore, Atlas feels that all corrective actions outlined in the Notice to <br />Abate have been addressed adequately for the Bonnie Plants facility in Linden, California. <br />LIMITATIONS <br />This report was prepared in accordance with the scope of work outlined in Atlas's contract and with <br />generally accepted professional engineering and environmental consulting practices existing at the time <br />this report was prepared and applicable to the location of the site. It was prepared for the exclusive use <br />of the Client for the express purpose stated above. Any re-use of this report for a different purpose or by