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INTRODUCTION This Soil Suitability Study presents the results of our investigation concerning the soil and groundwater characteristics under the subject property referenced on the Title Page. Our study was completed to satisfy the requirements of the San Joaquin Environmental Health Department(EHD) as stipulated in their Conditions of Approval-Items B and C, specifically: 1.)To determine if the six proposed Parcels that are being subdivided are suitable for the proper operation of septic systems which will function as intended during their anticipated lifespans, and 2.) Provide analysis and recommendations based upon the environmental criteria encountered in this study with regards to the soil and underlying groundwater. Soil under each of the six proposed Parcels possess acceptable percolative characteristics. A domestic well on the subject property was sampled for nitrate and the agrichemical DBCP. Water from this well was determined to have high concentrations of both of these constituents. Our report is in compliance with the requirements for a Soil Suitability Study under Development Title Section 9-1105.2 Item (d) of the San Joaquin County Ordinance Codes. SUBJECT SITE AND STUDY AREA BACKGROUND INFORMATION The purpose of this project is to create six Parcels from a total area of 370.9 acres. At this point in time, there is no proposal to build on, or improve any of the six Parcels. Each lot is proposed to be approximately 61.8 acres each. The Tentative Parcel Map found in Appendix "A" illustrates the designations and orientation of the subject Parcels, along with the location of the subject property. Mr. Robert Longstreth, et al, own and farm the entire property. The cropping history of the property included vineyard production. The property is located eight miles southeast of Stockton, at the end of Sola Road. Sola Road is a narrow lane road extending northeast from Mariposa Road and ending approximately 1.5 miles from Mariposa Road. Surrounding property use consists predominately of agricultural production land -primarily tree crops, row crops and pasture. Surrounding structures consist of low density housing, barns, a winery and organic dairy to the south, and other types of ag buildings. The property is currently zoned Agriculture-40 (AG-40). The entire property is currently planted in newly established almond trees, with no buildings or other types of structural improvements on the site. Water distribution is by micro-sprinkler from water pumped by five separate diesel-powered irrigation wells, with locations denoted on the Tentative Map. Municipal sewer will probably never serve this area, or at least not for several decades. As depicted on the attached USGS Map, the topography of the site is 68 feet above MSL at the west end and 75 feet at the east end, so there is a slight land declination of approximately seven les. Therefore tics stem de criteria for he west over a distance of 1.25 mi , se_p__ Y _ � feet toward t , _slgpes do not have to be considered. A review of Application Permits on file with the Environmental Health Department reveals there has been one Application for Additions to septic systems on Sola Road exclusively,which happened to be on the subject property. This Application demonstrated the need for additional drainage within the boundaries of the subject property. Page -1- Chesney Consulting