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LFR Inc. stockpiles. Mr. Rubio, a site owner representative, indicated that the soil stockpiles 3.3 were disposed of at the Site without the site owner's permission. Several electric power poles, an underground natural gas pipeline marker, and fiber optic cable markers were observed along the eastern site boundary. One of the power poles supported a transformer. No staining was observed on the soil beneath the transformer, or adjacent to the gas pipeline marker and/or fiber optic cable. LFR noted an idle water supply well and control panel at the Site during the site walk. According to historical records reviewed, and based on Site observations, there are no past or present underground storage tanks (USTs) or above-ground storage tanks �.:Z 3.3) (ASTs) on Site, nor are there any permits or visual evidence of below grade clarifiers or sumps on Site. However, USTs were reportedly located on the parcel immediately southeast of the Site at 9951 Lower Sacramento Road. Two USTs were reportedly used f y 5l to store gasoline. The USTs were removed from this address and no reports of leaks or / releases were reported for this facility. LFR concludes that USTs and ASTs are unlikely to represent an environmental concern to the Site. LFR's research at local regulatory agencies did not identify the Site as a property of known or suspected contamination, either historically or currently. Based on historical agricultural use of the Site, LFR conducted soil sampling on site to assess for the presence of residual persistent pesticides above regulatory action levels. No organochlorine pesticides were detected above the laboratory detection limit in the eight composite soil samples analyzed. With the exception of arsenic, all of the metal (-,2. 7� parameters detected were below the EPA Region 9 residential Preliminary Remediation Goals (rPRGs) and below the Total Threshold Limit Concentration criteria that establishes a hazardous waste. Although concentrations of arsenic detected in the three soil samples analyzed were above the EPA Region 9 rPRGs, the concentrations were �� ,\ below California established background levels. Based upon soil sampling and analysis conducted at the Site, LFR concludes that persistent pesticides and metals are unlikely to represent an environmental concern to the Site. Therefore, LFR recommends no further investigation regarding this issue. It is LFR's opinion that LFR has undertaken all appropriate inquiry into the previous ownership and uses of the Site. This inquiry was consistent with good commercial practices and includes all reasonably ascertainable information, in an effort to minimize liability. Conclusions and Recommendations This assessment has revealed no evidence of recognized environmental conditions (RECs) in connection with the Site, with the following exception: • Numerous soil stockpiles reportedly illegally disposed of at the Site represents a 1, recognized environmental condition for the Site because of the unknown source S of the stockpiles. LFR recommends that the stockpiles be removed from the 00309246-011 LowerSacmmenmRoad_ILaomes Phase I ESA:cIh Page 2