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Surface&Subsurface Contamination Report Page 4 700 W.Linn e Rd.,Tracy Project No. 662.1 February 11, 2013 Present Use of Property The current and recent uses of the Property as agricultural land to raise hay, row, or grain crops appear unlikely to have impacted the Property with a Recognized Environmental Condition (see Section 1.0 for a definition)except as follows: • Agricultural pesticides and other chemicals have been periodically applied to the crops on the Property. This use appears to have been conducted in accordance with applicable laws and regulations, at least in the past 5 years. It is possible that trace concentrations of pesticide remain resident in the shallow soil, but this does not appear likely to represent an adverse environmental condition. • The current and recent use of a large aboveground diesel tank does not appear to have materially affected the Property. Minor spillage appears to have impacted less than 10 cubic feet of soil. This represents a primarily cosmetic concern. To help assure the tank will not pose a future environmental hazard in case of a leak or rupture, we suggest that some form of secondary containment be constructed. • Given the apparent age of the permanent buildings, it is theoretically possible that asbestos could be contained in some construction materials. No materials likely to include asbestos were observed in the agricultural buildings. The residential buildings were not entered. • The Quonset shed formerly used for pesticide storage may have been the site of small spills of pesticides. No field evidence was found to suggest these materials impacted the soil surrounding the building, however. • The only hazardous material identified in "Reportable Quantities" and for which a Hazardous Materials Management Plan (HMMP) has been filed with the County Office of Emergency Services (OES) is for fuel contained in the aboveground diesel tank described above. At this time, it does not appear that reportable quantities of any other hazardous materials are on the Property. Past Use of Property Past uses of the Property as agricultural land to raise hay, row or grain crops appear unlikely to have impacted it with a recognized environmental condition, except as follows: • Low concentrations of residual pesticide could still be resident in the soil. These pesticides, if present, would be unlikely to exist at concentrations high enough to pose a human health hazard. • The past use of underground tanks including a leaking tank has been investigated and no ongoing impact to the soil exists. 2937 Veneman Ave.,#B240 Geo-Phase Environmental Inc. Phone: (209)569-0293 Modesto,CA 95356 Fax: (209)569-0295