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vftwe 14 April 2004 AGE-NC Project No.04-1143 Page 16 of 17 9.0. SUMMARY AND CONCLUSIONS We have performed an investigation into the current and historical uses of the property located at APN 063-220-31,Lodi,California,the subjectproperty.San Joaquin County Ordinance 9 905.12(a) was used as a guideline to perform this assessment. This assessment has revealed no evidence of recognized environmental conditions in connection with the property except: • The extended period of use of the subject property for at least forty-five years for agricultural purposes provides the potential for the property to have been impacted by agricultural chemicals, such as herbicides, pesticides and fertilizers. However, AGE did not note any direct indications of unusual or dangerous use of chemicals on the property,such as unusual staining, chemical wastes or container disposal on the site, chemical storage or dumping, spilled powders, discolored or stained soil or stressed vegetation. According the property owner, agricultural chemicals were not stored on the property. Therefore, AGE does not believe that agricultural chemicals have impacted soil and ground water on the property to hazardous levels unusual for an agricultural property in a long-time agricultural area. No adjacent water features were noted that might be affected by runoff from the subject property. It is not the property owner's intent to convert the current agricultural use to non-agricultural uses, except for a small area at the northeast corner, which will include a residence. If the subject property were to be converted to a large-scale residential development and agricultural chemical residue concentrations were higher than those allowed by law, then those chemical residues in the soil could be considered hazardous;because there is no intent for residential use other than the personal use of the owner, there should be little exposure of additional residents to chemical residues in the soil. There is no evidence from the site reconnaissance,the interview or the SJCACO records that agricultural chemicals have been applied out of compliance with federal, state or local laws. The only way to obtain a higher degree of certainty regarding the potential for agricultural chemical impact to the property would be with a sampling and laboratory analysis program, which does not appear to be warranted at this time. f 10.0. RECOMMENDATIONS Based upon the findings of this Surface/Subsurface Contamination Report,AGE recommends if the property use is changed from agricultural to large-scale residential,that further investigation of the subject property for contamination by aoTcHuTfulr—aT chemicals should be implemented. ` Advanced GeoEnvironmental,Inc. r