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r�� The well water test reveals 15 ppm nitrate. The Maximum Contaminant Level is 45 ppm. Considering the extensive agricultural production surrounding the property,this concentration would have been expected to be significantly higher, but given the clayey surface soils and subsoils, nitrate formation is mitigated through nitrification and nitrate that does form is readily denitrified in the clay soil. It is extremely unlikely and virtually impossible that any of the referenced ERS point-source sites could affect groundwater under the property. Additionally, there are no observable aboveground storage tanks (other than propane tanks), nor underground tank appurtenances on, or immediately surrounding the property. Therefore, it may be considered almost impossible that any tanks in this locale may affect the property because of the distances and groundwater directional flows involved. The ASTM E-1527-00 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. De minimus conditions were not observed as noted in the photographic plates. Additionally, no spillage or dumping of hazardous materials was observed. 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." Therefore, it is my professional opinion that no corrective action needs to be taken with regards to the subject property. The property is surrounded by properties that engage in production agriculture. Consequences of this surrounding land use include: Noise, dust, odors, insects, machinery, spray equipment, crop-dusting aircraft, trucks, exhaust and other environmental effects that may be offensive to some people. It is recommended that bottled water be used for drinking and cooking purposes for people who live in rural environments. § 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 Ms. Lisa Jennings is currently in the process of submitting the Tentative Parcel Map. § 5.5 As referenced above,the Appendices contain the documentation to support the applicable data and information found in this Report. Page-6- Chesney Consulting