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� U F ximate north and northwest of the property was a gravel pit mine. Wong Engineers had urveying and civil engineering services for Ray and Nancy Butler, who own this operated the gravel pit. The gravel mining operation is evidenced on the attached map. No environmental contamination concerns should arise from this defunct gravel on. To the east is a vast expanse of undeveloped pasture. There are no commercial facilities within a one-mile radius of the property. The neighborhood area has existed for at least four decades and some buildings to the northwest in the town of Peters are much older. No irrigation district exists for the property. It appears a defunct Southern Pacific Railroad line traversed Hewitt Road in the distant past. INFORMATION FROM SITE RECONNAISSANCE AND INTERVIEWS The following information was obtained visually or through an interview with Mr. Arturo Paniaqua: The property contains no underground or above ground storage tanks (USTs/ASTs), other than a Z propane tank. Mr. Paniaqua has owned the property for the past two years. The previous owner of the property was unknown to Mr. Paniaqua. ? It is a highly remote possibility that minute volumes of agrichemicals sprayed on agricultural production land to the west and northwest(primarily the south Linden area)that may have drifted onto the subject property in the past. The site can be considered in the predominant downgradient windshed to the Linden area. Additionally, San Joaquin County Mosquito Abatement District sprays for mosquitos in the surrounding open pasture land which may contain standing water. 3.V Consequently, mosquito insecticides may be applied, or have drifted onto the property. The entire acreage was walked and surveyed for evidence which may suggest surface and/or subsurface contamination: Containers were not observed. Approximately 21 used tires are on the property. No evidence of solid waste disposal was noted, other than tree limbs and brush. The site was carefully inspected for environmental concerns originating from discolored, disturbed/subsided soils, stressed vegetation or unusual/noxious odors. No disturbed soils were observed, however, subsided soils, or swales were present. As evidenced by the attached photographs, no hazardous materials are stored on-site and there were no indication or observations of spills or other items associated with hazardous materials. An important concern associated with the environmental assessment of open properties is the issue of buried pesticide containers or discarded items. It was an occasional practice to dispose of containers or discarded items by this method many years ago. To detect these types of underground artifacts is difficult even with the use of ground penetrating radar or other types of non-intrusive, subsurface analyses. The land surface did not exhibit visual indicators for buried containers such as surfacing of product residue, soil mounding, or localized soil depressions. It is usually only after a contaminant plume has impacted a domestic well that buried pesticide containers are discovered. If buried items are discovered during underground utility placements, etc. on the new parcels,the Environmental Health Department must be contacted immediately. Page -2- Chesney Consulting