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FAgnicultural CULTURAL PESTICIDE DOCUMENTATION sticide documentation was obtained from Mr. Kagehiro, who farmed th7been 2000. No pesticides were mixed or stored on the property, and have n applied since the last crop,which was 4.5 years ago. Consequently, the potential for pesticide residue in the on-site soils is nil, taking into account the environmental fate data of modern-day pesticides. These chemistries have comparatively short half-lives that are measured in hours and days. The only potential residual pesticide would be DDT. It is unknown if DDT was ever applied to the property. However, it is a possibility that it may have drifted onto the property. Although DDT was banned in 1972, its presence in San Joaquin Valley soils is indicative of its long half-life of 15.6 years. Environmental fate data for DDT, DDE and DDD is found in Appendix E. The predominate wind direction through the area is east-southeast. There is no agricultural production to the west-northwest of the property. The predominate wind direction, along with the fact that agrichemicals cannot be applied during windy conditions, ensure that the likelihood of impact to the property from pesticide drift is highly unlikely. VI. CONCLUSIONS, OPINIONS AND RECOMMENDATIONS From visual observations, there is no surface contamination from conspicuous hazardous BuVRzi4I,s There are three locations of randomlydiscar dxnatcrials.thaL=alLnoi�zar�. Due to the rural, secluded, large and accessible nature of the property, the potential for the dumping of hazardous materials such as drug manufacturing chemicals is high. However, Mr. Kagehiro patrols the property on a regular basis. Section (c) of San Joaquin County Development Title 9-905.12 states "Corrective Action: If the report indicates there are surface and subsurface contamination, corrective action shall be recommended in the report and concurred with by Environmental Health prior to the issuance of the building permit." The only environmental concerns observed on o,_ r near the subject property So were theref r n ed d�scar ed materials which could be considered de minimus environmental g �,Q f ^dit�i A. It may-be recommended to disyose ese of „d,1SG3C 1 ransfer Station on Ma ur Drive. State law indicates that up to nine tires may be transported without a license to carry more. The one tire on the property may also be taken to the Tracy Transfer Station. Consideration may be given to placing a sign near the corners of the property stating that people caught dumping trash will be prosecuted. Potential environmental impact from the listed sites suggests that there is virtually no possibility of adverse impact to the subject property. This is based upon the most probable groundwater directional flow conforming with the declination of the land surface, which is in a northeasterly direction. This places the sites located in the Envisions files at EHD and GeoTracker downgradient in relation to the subject property. Page -4- Chesney Consulting