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§ 5.0 CONCLUSIONS AND RECOMMENDATIONS § 5.1 Evaluation of each point-source potential contamination described(i.e., Geotracker Listed Sites,ERS Listed Sites, many non-hazardous on-site items, a possible defunct septic system and non-point sources (i.e.,possible nitrate in the underlying groundwater,potential air pollution/agrichemical drift)pose a nominal risk to the subject property,the environment, and to human health. Historical septic system density at one time could be considered moderately dense; however,the area is now served by Mokelumne Acres Maintenance District for domestic water services and the Woodbridge Sanitary District for sewer services. The subject property is currently served by a domestic well, but will connect to the Mokelumne Acres Maintenance District for water services upon development. This domestic well must be destroyed under EHD permit at the time of connection. The existing �1 SFR is connected to the Woodbridge Sanitary District. The two new parcels will also connect to the Sanitary District. There is apparently no permit for the destruction of the septic system that served the existing SFR. It should be located, if possible, and destroyed under EHD permit. There are no observable aboveground storage tanks nor underground tank appurtenances on, or immediately surrounding the property. Therefore, it may be considered almost impossible that any tanks in this locale, including the UST at the fire station west of the property, could affect the property because of the distances and groundwater directional flows involved. The ASTM E-1527-05 Document referenced on Page 2 refers to de minimus environmental conditions. De minimus conditions generally do not present a material risk to public health or to the environment and generally would not include an enforcement action if observed by the appropriate governmental agencies. The only de minimus conditions observed was the many photographically referenced non-hazardous items. Section 9-905.12 of San Joaquin County Development Title 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." It is my professional opinion that no corrective action is required regarding the subject property, other than the referenced permitting processes. § 5.2 The Appendices, found in Section 7 incorporate all of the applicable information referenced in this Report. § 5.3 See below for signature and stamp. § 5.4 Wong Engineers, Inc. is the civil engineer for the project and is currently in the process of i creating the Tentative Parcel Map. L.§ 55 referenced above, the Appendices contain the documentation to support the applicable a and information found in this Report. Page -6- Chesney Consulting